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SERIES<br />

<strong>Vaginal</strong> <strong>Support</strong> <strong>Pessaries</strong>:<br />

<strong>Indications</strong> <strong>for</strong> <strong>Use</strong> <strong>and</strong> <strong>Fitting</strong><br />

Strategies<br />

SPECIAL SERIES ON PESSARIES<br />

Shanna Atnip <strong>and</strong> Katharine O’Dell<br />

Pelvic floor disorders are<br />

common in women, <strong>and</strong><br />

as the population ages,<br />

these disorders may be<br />

seen more frequently by health<br />

care providers (Nygaard et al.,<br />

2008). When pelvic symptoms<br />

are associated with loss of structural<br />

support of the pelvic organs<br />

<strong>and</strong> vagina, vaginal support pessaries<br />

offer an important option<br />

<strong>for</strong> relief (American College of<br />

Obstetricians & Gynecologists<br />

[ACOG], 2007).<br />

Historically, vaginal pessaries<br />

have been used to manage pelvic<br />

floor relaxation <strong>and</strong> were made<br />

from a variety of materials,<br />

including fruit, metal, porcelain,<br />

© 2012 Society of Urologic Nurses <strong>and</strong> Associates<br />

Atnip, S., & O’Dell, K. (2012). <strong>Vaginal</strong> support pessaries: <strong>Indications</strong> <strong>for</strong> use <strong>and</strong><br />

fitting strategies. Urologic Nursing, 32(3), 114-125.<br />

Flexible silicone vaginal support pessaries offer a low-risk, effective option <strong>for</strong><br />

treatment of symptoms of pelvic organ prolapse. This first article in a three-part<br />

series summarizes clinical recommendations <strong>and</strong> current evidence related to<br />

pessary indications, choice, <strong>and</strong> fitting.<br />

Key Words:<br />

Pelvic organ prolapse, pessary, indications, fitting.<br />

Objectives:<br />

1. List the symptoms of pelvic organ prolapse that may be successfully treated<br />

with a vaginal support pessary.<br />

2. Discuss the various types of pessaries <strong>and</strong> their uses to treat pelvic organ<br />

prolapse.<br />

3. Outline the pessary selection process <strong>and</strong> steps to pessary fitting.<br />

Shanna Atnip, MSN, WHNP-BC, is a Nurse<br />

Practitioner, the Division of Urogynecology<br />

<strong>and</strong> Reconstructive Pelvic Surgery,<br />

Parkl<strong>and</strong> Health & Hospital System, <strong>and</strong> the<br />

University of Texas Southwestern Medical<br />

Center, Dallas TX.<br />

Katharine O’Dell, PhD, CNM, WHNP-BC,<br />

is an Assistant Professor of OB/GYN, the<br />

Division of Pelvic Medicine <strong>and</strong> Recon -<br />

structive Surgery, UMass Memorial Medical<br />

Center, Worcester, MA.<br />

rubber, <strong>and</strong> acrylic (Shah, Sultan,<br />

& Thakar, 2006). Modern pessaries<br />

are made from silicone, acrylic,<br />

latex, or rubber. Flexible, medicalgrade<br />

silicone pessaries are the<br />

primary subject of this article <strong>and</strong><br />

series because they offer many<br />

advantages over other materials.<br />

For example, flexible, medicalgrade<br />

pessaries are pliable, longlasting,<br />

non-absorbent (related to<br />

odor <strong>and</strong> secretions), biologically<br />

inert, non-allergenic, non-carcinogenic,<br />

<strong>and</strong> washable, <strong>and</strong> can generally<br />

be sterilized using an autoclave,<br />

boiling water, or a cold sterilization<br />

product (Cooper Surgical,<br />

2008; Personalmed, 2012).<br />

<strong>Support</strong> pessaries are experiencing<br />

a renaissance <strong>and</strong> are currently<br />

recommended as a first-line,<br />

low-risk treatment option <strong>for</strong> a variety<br />

of prolapse-related symptoms<br />

(ACOG, 2007; Clemons, Aquilar,<br />

Sokol, Jackson, & Myers, 2004).<br />

However, to provide satisfactory<br />

Note: Objectives <strong>and</strong> CNE Evaluation Form<br />

appear on page 125.<br />

Statement of Disclosure: The authors<br />

reported no actual or potential conflict of<br />

interest in relation to this continuing nursing<br />

education activity.<br />

This learning activity was partially funded<br />

by an unrestricted educational grant from<br />

CooperSurgical, Inc.<br />

Urologic Nursing Editorial Board Statements of Disclosure<br />

In accordance with ANCC-COA governing rules Urologic Nursing Editorial Board statements<br />

of disclosure are published with each CNE offering. The statements of disclosure <strong>for</strong><br />

this offering are published below.<br />

Susanne A. Quallich, ANP-BC, NP-C, CUNP, disclosed that she is on the Consultants’<br />

Bureau <strong>for</strong> Coloplast.<br />

All other Urologic Nursing Editorial Board members reported no actual or potential<br />

conflict of interest in relation to this continuing nursing education activity.<br />

114 UROLOGIC NURSING / May-June 2012 / Volume 32 Number 3


SERIES<br />

care, health care providers must<br />

effectively evaluate pelvic symptoms<br />

<strong>and</strong> related health attitudes;<br />

assess vaginal size, shape, <strong>and</strong><br />

support; select a com<strong>for</strong>table <strong>and</strong><br />

effective pessary; <strong>and</strong> provide<br />

health education <strong>and</strong> appropriate<br />

follow up. This article addresses<br />

basic in<strong>for</strong>mation essential to prescribing<br />

pessaries to women,<br />

including an overview of current<br />

patterns of clinical use, a review<br />

of existing evidence, <strong>and</strong> suggestions<br />

<strong>for</strong> ongoing research.<br />

Pessary <strong>Indications</strong><br />

<strong>Pessaries</strong> are a low-risk option<br />

<strong>for</strong> treatment of pelvic floor disorders<br />

with few absolute contraindications.<br />

Typically, pro viders are<br />

advised to use caution if pessary<br />

c<strong>and</strong>idates have an active vaginal<br />

infection, persisting vaginal erosion<br />

or ulceration, or severe vaginal<br />

atrophy (Weber & Richter,<br />

2005). In addition, non-compliance<br />

with follow up can be problematic<br />

because it may result in<br />

late recognition of complications;<br />

there<strong>for</strong>e, providers are advised to<br />

weigh risks, family support, <strong>and</strong><br />

alternative options carefully<br />

be<strong>for</strong>e providing pessaries to<br />

women with dementia or other<br />

conditions that may lead to irregular<br />

follow up or pessary neglect<br />

(Weber & Richter, 2005). Common<br />

indications <strong>for</strong> the use of support<br />

pessaries include relief of symptoms,<br />

avoidance of surgery, diagnosis<br />

<strong>and</strong> surgical outcome prediction,<br />

<strong>and</strong> prevention (see<br />

Table 1).<br />

Table 1.<br />

Pessary <strong>Indications</strong><br />

Relief of prolapse symptoms<br />

Convenience in scheduling surgery<br />

Surgical avoidance<br />

Diagnostic tool, as in identifying occult stress incontinence<br />

Prediction tool to clarify likely surgical outcomes<br />

Prevention of future increasing prolapse <strong>and</strong> related morbidity<br />

Symptom Improvement<br />

Symptoms of pelvic organ<br />

prolapse (POP) may include<br />

pelvic pressure, vaginal bulge,<br />

irritative voiding symptoms, urinary<br />

incontinence (UI), fecal<br />

incontinence, dyspareunia, constipation,<br />

<strong>and</strong> difficulty emptying<br />

both the bladder <strong>and</strong> bowels.<br />

Many trials have reported significant<br />

improvement of common<br />

symptoms, including urinary ur -<br />

gency <strong>and</strong> frequency, <strong>and</strong> urgency<br />

UI; vaginal bulge; pelvic <strong>and</strong><br />

abdominal heaviness <strong>and</strong> pressure;<br />

incomplete or difficult<br />

bowel emptying; flatal incontinence;<br />

<strong>and</strong> fecal urgency <strong>and</strong><br />

incontinence (Barber, Walters,<br />

Cundiff, & the PESSRI Trial<br />

Group, 2006; Clemons, Aguilar,<br />

Tillinghast, Jackson, & Myers,<br />

2004a; Fern<strong>and</strong>o, Thakar, Sultan,<br />

Shah, & Jones, 2006; Komesu et<br />

al., 2007, 2008). Improved bladder<br />

emptying subsequent to reduction<br />

of POP <strong>and</strong> urethral obstruction<br />

may prevent many causes of<br />

ongoing morbidity or mortality,<br />

including recurrent urinary tract<br />

infection, acute urinary retention,<br />

<strong>and</strong> renal injury (Micha et al.,<br />

2008). Both stress <strong>and</strong> mixed<br />

UI were improved with pessary<br />

use in approximately 50% of<br />

women in two separate trials<br />

(Donnelly, Powell-Morgan, Olsen,<br />

& Nygaard, 2004; Richter et al.,<br />

2010). Additionally, overall body<br />

image improves in many successful<br />

pessary users (Patel, Mellen,<br />

O’Sullivan, & LaSala, 2010).<br />

Other areas of symptomrelief<br />

related to pessary use have<br />

been less well studied. For example,<br />

women with a vaginal bulge<br />

can develop epithelial ulceration<br />

due to dryness <strong>and</strong> friction on<br />

clothing. The risk of infection<br />

<strong>and</strong> hemorrhage can be effectively<br />

treated in a plan of careful follow<br />

up <strong>and</strong> pessary use to<br />

enhance healing.<br />

In addition to symptom<br />

improvement, use of support<br />

pessaries can help women meet<br />

their health improvement goals.<br />

In one study, women who<br />

achieved their own pre-determined<br />

treatment goals (improved<br />

bladder control, increased com<strong>for</strong>t<br />

with physical activity, de -<br />

creased prolapse symptoms)<br />

were more likely to be satisfied<br />

<strong>and</strong> continue pessary use as compared<br />

with women who did not<br />

meet their treatment goals<br />

(Komesu et al., 2008). Helping<br />

patients set realistic goals <strong>for</strong><br />

treatment outcomes based on<br />

current evidence will help<br />

women meet their treatment<br />

goals <strong>and</strong> encourage continued<br />

pessary use.<br />

While a majority of women<br />

may note symptom relief with<br />

pessary use, some women cannot<br />

be successfully fitted, <strong>and</strong> others<br />

may experience burdensome<br />

new symptoms during a pessary<br />

trial. New symptoms can include<br />

de novo problems with bowel<br />

<strong>and</strong> bladder emptying, discom<strong>for</strong>t,<br />

pressure, or pain; increases<br />

in vaginal discharge or odor, or<br />

new onset stress UI due to<br />

unkinking of an otherwise inadequately<br />

supported urethra<br />

(Bump, Fantl, & Hurt, 1988). In<br />

one study, the most common risk<br />

factors <strong>for</strong> dissatisfaction related<br />

to pessary use included de novo<br />

stress incontinence, a pre-existing<br />

strong desire <strong>for</strong> surgical<br />

repair, <strong>and</strong> more advanced prolapse<br />

(where the leading edge of<br />

the prolapse is halfway beyond<br />

the hymen or more) (Clemons,<br />

Aguilar, Tillinghast et al., 2004b).<br />

Potential distress may be re -<br />

duced if women considering pessary<br />

use are aware of common<br />

uses, benefits, <strong>and</strong> potential risks<br />

prior to their initial pessary fitting.<br />

SPECIAL SERIES ON PESSARIES<br />

UROLOGIC NURSING / May-June 2012 / Volume 32 Number 3 115


SERIES<br />

SPECIAL SERIES ON PESSARIES<br />

Surgical Avoidance or<br />

Scheduling Convenience<br />

Conservative management<br />

with a pessary, either on a temporary<br />

or long-term basis, may be<br />

the optimum choice <strong>for</strong> many<br />

women <strong>for</strong> a variety of reasons.<br />

Although evidence is sparse,<br />

clinical examples of indications<br />

include fear of surgery or anesthesia,<br />

significant co-morbidities<br />

that preclude surgery, or prior<br />

failed surgery with resultant<br />

higher risk of poor surgical outcome.<br />

Temporary use of a support<br />

pessary may improve com<strong>for</strong>t<br />

<strong>for</strong> women delaying surgery<br />

due to career or family priorities,<br />

or <strong>for</strong> women who have been<br />

advised to defer vaginal reconstruction<br />

until child bearing is<br />

completed.<br />

Diagnostic Assessment<br />

And Prediction of Surgical<br />

Outcomes<br />

A pessary trial can provide<br />

an opportunity to explore likely<br />

symptom improvement or the<br />

potential <strong>for</strong> onset of new<br />

adverse effects, <strong>and</strong> help women<br />

develop realistic expectations<br />

during pre-operative treatment<br />

planning. In a classic study,<br />

researchers used a trial with a<br />

lever pessary to successfully<br />

predict surgical cure of stress<br />

incontinence via retropubic urethropexy.<br />

In this trial, 24 of 26<br />

women with stress UI became<br />

continent with a supine stress<br />

test after pessary insertion, <strong>and</strong><br />

all patients remained continent<br />

after a retropubic urethropexy<br />

was per<strong>for</strong>med (Bhatia &<br />

Bergman, 1985). In another<br />

study, de novo stress incontinence,<br />

which can occur when an<br />

otherwise deficient urethra is<br />

straightened during repair of the<br />

prolapsed anterior compartment,<br />

was shown to be a major<br />

reason <strong>for</strong> post-treatment dissatisfaction<br />

(Clemons, Aguilar,<br />

Tillinghast et al., 2004a).<br />

Post-surgical expectations<br />

have also been explored with<br />

women reporting two common<br />

symptoms often attributed to<br />

POP – lower abdominal pressure<br />

<strong>and</strong> low back pain (Heit,<br />

Culligan, Rosenquist, & Shott,<br />

2002). In that study, participantrated<br />

symptom severity using<br />

visual analog scales, (n = 152)<br />

was compared with objective<br />

prolapse determination <strong>and</strong><br />

demonstrated no significant<br />

association. There<strong>for</strong>e, because<br />

prolapse may not be the cause of<br />

some symptoms, a pessary trial<br />

can play a role in clarifying<br />

treatment expectations during<br />

pre-operative decision-making.<br />

<strong>Pessaries</strong> have also been<br />

useful in predicting successful<br />

outcomes in cases of pre-operative<br />

elevated post-void residual<br />

(PVR) due to urethral obstruction.<br />

A retrospective chart<br />

review of women with pre-operative<br />

PVR greater than 100 cc (n<br />

= 24) found that pessary use normalized<br />

PVR in 75% (n = 19) of<br />

the women, with only one<br />

woman subsequently experiencing<br />

elevated PVR three months<br />

post-operatively. A trial pessary<br />

reduction was found to be a reliable<br />

tool in predicting improvement<br />

in urinary retention<br />

(Lazarou, Scotti, Mikhail, Zhou,<br />

& Powers, 2004).<br />

Prevention of Progressive<br />

Prolapse<br />

Emerging evidence also suggests<br />

a potential preventive role<br />

<strong>for</strong> pessaries. H<strong>and</strong>a <strong>and</strong> Jones<br />

(2002) observed a significant<br />

improvement in stage of POP in<br />

19 women following one year of<br />

successful pessary use, suggesting<br />

a therapeutic effect associated<br />

with the use of a supportive<br />

pessary. In addition, in an observational<br />

cohort study of women<br />

using pessaries <strong>for</strong> three months<br />

(n = 90), measurement of the genital<br />

hiatus decreased, leading the<br />

authors to postulate that pessary<br />

use allows recovery of the levator<br />

ani muscles (Jones et al., 2008).<br />

In another small case series (n =<br />

6), prolapse regressed to normal<br />

after a median duration of pessary<br />

use of 27.5 months <strong>and</strong><br />

remained resolved <strong>for</strong> a median<br />

of 42.0 months of follow up<br />

(Matsubara & Ohki, 2010).<br />

Whether this observed prolapse<br />

improvement is due to temporary<br />

physiologic tissue response to<br />

reduced strain <strong>and</strong>/or has potential<br />

long-term preventive ramifications<br />

is currently unclear.<br />

Pessary Selection<br />

Modern silicone pessaries<br />

come in a variety of shapes <strong>and</strong><br />

sizes; there<strong>for</strong>e, selection is primarily<br />

determined by the<br />

lifestyle of the potential wearer,<br />

as well as findings on physical<br />

examination. Both providers <strong>and</strong><br />

patients are likely to benefit if<br />

pessary success could be predicted<br />

because counseling would be<br />

improved, time would be saved,<br />

<strong>and</strong> needless discom<strong>for</strong>t would<br />

be eliminated; however, predictive<br />

parameters <strong>for</strong> pessary<br />

choice <strong>and</strong> fitting success have<br />

proven difficult to quantify<br />

(Cundiff et al., 2007). For that<br />

reason, expert opinion from clinical<br />

observation continues to<br />

in<strong>for</strong>m both patient <strong>and</strong> pessary<br />

selection <strong>and</strong> is included here <strong>for</strong><br />

the potential benefit of novice<br />

providers.<br />

Patient-Specific Factors<br />

Several recent studies concluded<br />

that the majority of<br />

women can be successfully fitted<br />

with a pessary, with POP-reduction<br />

success rates ranging from<br />

63% to 86% (Clemons, Aguilar,<br />

Tillinghast et al., 2004b; Hanson,<br />

Schulz, Flood, Cooley, & Tam,<br />

2006; Maito, Quam, Craig,<br />

Danner, & Rogers, 2006; Mutone,<br />

Terry, Hale, & Benson, 2005;<br />

Nyguyen & Jones, 2005; Wu,<br />

Farrell, Baskett, & Flowerdew,<br />

1997). However, specific factors<br />

that might predict successful fitting<br />

have not been consistently<br />

identified. Some studies have<br />

suggested that patient satisfaction<br />

is higher in women who are<br />

older, have had no prior pelvic<br />

surgery (including hysterectomy),<br />

have higher parity or less<br />

severe prolapse, <strong>and</strong> have no UI<br />

116 UROLOGIC NURSING / May-June 2012 / Volume 32 Number 3


SERIES<br />

(Maito et al., 2006; Nyguyen &<br />

Jones, 2005; Wu et al., 1997).<br />

Hanson et al. (2006) assessed the<br />

importance of estrogen therapy<br />

to successful pessary fitting,<br />

reporting that women using vaginal<br />

estrogen, with or without systemic<br />

hormone replacement therapy<br />

(HRT), had higher fitting success<br />

compared to both systemiconly<br />

<strong>and</strong> non-HRT users. Maito<br />

et al. (2006) reported presence of<br />

mild posterior compartment prolapse<br />

as a positive predictor of<br />

fitting success, <strong>and</strong> history of a<br />

prior prolapse procedure or hysterectomy<br />

as negative predictors.<br />

Clemons, Aguilar, Tillinghast et<br />

al. (2004b) also found a shortened<br />

vaginal length (≤ 6 cm) <strong>and</strong><br />

wide genital hiatus (4 fingerbreadths)<br />

to be predictive of<br />

unsuccessful pessary fitting.<br />

Other researchers have reported<br />

no significant predictive value<br />

regarding age, weight, vaginal<br />

length, size of genital hiatus,<br />

compartment of prolapse, stage<br />

of prolapse, or hormone use<br />

(Maito et al., 2006; Mutone et al.,<br />

2005; Nyguyen & Jones, 2005;<br />

Wu et al., 1997). Because of this<br />

lack of consistent predictors, a<br />

pessary trial may be appropriate<br />

<strong>for</strong> any woman seeking treatment<br />

<strong>for</strong> prolapse-related symptoms<br />

(ACOG, 2007; Clemons, Aguilar,<br />

Sokol et al., 2004).<br />

Factors related to patient<br />

preference, lifestyle, <strong>and</strong> ability<br />

may guide pessary choice. For<br />

example, some pessaries may be<br />

easier to self-remove <strong>and</strong> selfinsert.<br />

This may affect choice<br />

related to patient com<strong>for</strong>t with<br />

self-touch, interest in per<strong>for</strong>ming<br />

self-care, <strong>and</strong> desire to have vaginal<br />

intercourse. Clinical experience<br />

suggests that arthritis,<br />

mobility impairment, <strong>and</strong> obesity<br />

may limit successful self-care,<br />

even in very motivated women.<br />

Women who are not doing selfcare<br />

will need to wear their pessary<br />

continuously between the<br />

periodic office visits <strong>for</strong> removal<br />

<strong>and</strong> cleaning.<br />

With the appropriate pessary,<br />

a sexually active woman has a few<br />

options. The pessary can be re -<br />

moved <strong>for</strong> intercourse either by<br />

the woman or her partner. If she<br />

prefers leaving the pessary in<br />

place, some styles (<strong>for</strong> example,<br />

Ring pessaries) are more likely to<br />

be com<strong>for</strong>table <strong>for</strong> both partners<br />

during intercourse. However,<br />

there is little research to assess this<br />

specifically, <strong>and</strong> clinical reports<br />

from individual couples vary<br />

greatly. Overall, sexual function<br />

has been shown to improve with<br />

pessary use, including frequency<br />

<strong>and</strong> satisfaction (Fern<strong>and</strong>o et al.,<br />

2006), desire, orgasm, <strong>and</strong> lubrication<br />

(Kuhn, Bapst, Stadlmayr, Vits,<br />

& Mueller, 2009). Additionally,<br />

one study found sexually active<br />

women were more likely to continue<br />

pessary use compared to<br />

women who were not sexually<br />

active (Brincat, Kenton, Fitzgerald,<br />

& Brubaker, 2004). Overall, pessary<br />

use may be acceptable to<br />

many sexually active women.<br />

Pessary-Related Factors<br />

Many pessary styles <strong>and</strong><br />

sizes are available, <strong>and</strong> new<br />

styles continue to be designed.<br />

Figure 1 displays a variety of current<br />

pessaries. While successfully<br />

fitted pessaries offer a high<br />

Figure 1.<br />

Pessary Shapes<br />

Note: The large variety of pessary shapes can be categorized as pessaries that<br />

require significant introital support (top row), pessaries that are relatively selfsupporting<br />

(seond row), <strong>and</strong> pessaries with an incontinence support (third row).<br />

likelihood of symptom <strong>and</strong> quality-of-life<br />

improvement <strong>for</strong> most<br />

users, no specific shape of pessary<br />

is best <strong>for</strong> all women. In one<br />

crossover study comparing two<br />

different pessaries (Ring <strong>and</strong><br />

Gellhorn), both shapes were<br />

effective <strong>for</strong> the majority of<br />

women <strong>and</strong> significantly im -<br />

proved urinary, bowel, <strong>and</strong> prolapse<br />

symptoms (n = 134, mean<br />

age 61 years, median prolapse<br />

Stage 3 – descent halfway<br />

beyond the hymen, satisfaction<br />

rates – Ring 80%, Gellhorn 76%)<br />

(Cundiff et al., 2007).<br />

Because no quantitative mea -<br />

sures have been identified to<br />

direct pessary choice <strong>and</strong> fitting,<br />

providers must continue to rely<br />

on manufacturer guidelines,<br />

expert opinion, product availability,<br />

clinical judgment, <strong>and</strong><br />

provider or patient preferences<br />

when choosing initial pessary<br />

shape <strong>and</strong> style.<br />

One way to conceptualize<br />

support pessary options is to categorize<br />

them by their functional<br />

design. Using that paradigm,<br />

flexible silicone pessaries fall<br />

into three categories: those that<br />

need some support from the<br />

woman’s own introital integrity<br />

SPECIAL SERIES ON PESSARIES<br />

UROLOGIC NURSING / May-June 2012 / Volume 32 Number 3 117


SERIES<br />

SPECIAL SERIES ON PESSARIES<br />

to stay in place (basic support pessaries), pessaries<br />

with concavities that make them relatively selfretaining<br />

(self-retaining pessaries), <strong>and</strong> pessaries<br />

with additional urethral support designed to<br />

improve stress incontinence (incontinence pessaries).<br />

<strong>Use</strong> of these classifications to guide initial<br />

choice is summarized in Table 2.<br />

In the authors’ experience, pessaries retained by<br />

introital integrity can be folded or deflated to ease<br />

insertion through the introitus. Examples include<br />

the Ring (see Figure 2), Donut (see Figure 3), <strong>and</strong><br />

Inflatable Donut (see Figure 4), <strong>and</strong> the Shaatz <strong>and</strong><br />

lever pessaries (not pictured separately). Those that<br />

have a relatively slim profile <strong>and</strong> fit along the length<br />

of the vaginal shaft, such as the Ring pessary, are<br />

most likely to be com<strong>for</strong>table when left in place during<br />

vaginal intercourse. Others, such as Donut pessaries,<br />

which are sometimes referred to as space-filling<br />

pessaries because they occupy more of the vaginal<br />

width, may preclude intercourse when in situ.<br />

<strong>Pessaries</strong> designed to easily fold or deflate may also<br />

be most amenable to self-insertion <strong>and</strong> removal.<br />

In contrast, self-retaining pessaries are generally<br />

concave in shape. The vaginal walls con<strong>for</strong>m to<br />

these areas, allowing the pessaries to stay in place in<br />

women with minimal or no introital strength. These<br />

include the Gellhorn (see Figure 5) <strong>and</strong> Cube pessaries<br />

(see Figure 6). These are traditionally considered<br />

more likely to support advanced POP but may<br />

also increase the risk of mechanical injury to the<br />

vaginal epithelium. They may also be more difficult<br />

<strong>for</strong> both the patient <strong>and</strong> provider to remove <strong>and</strong> reinsert.<br />

Incont inence pessaries include a knob that fits<br />

behind the pubic symphysis, supporting the urethra<br />

during times of increased abdominal pressure to<br />

diminish stress incontinence (see Figure 7).<br />

Although the topic is not well studied, when a<br />

pessary is worn over time (longer than 24 hours),<br />

Figure 2.<br />

Ring <strong>and</strong> Ring with <strong>Support</strong> Membrane<br />

Note: Note the hinge bends at the notch in the left pessary<br />

<strong>and</strong> at the finger-sized holes of the right pessary. This pessary<br />

is folded at the hinge <strong>for</strong> insertion <strong>and</strong> removal.<br />

Figure 3.<br />

Donut Pessary<br />

Note: Some clinicians aid insertion <strong>and</strong> removal by carefully<br />

deflating the Donut using a needle <strong>and</strong> syringe, inserting it, <strong>and</strong><br />

then re-inflating the pessary once it is in place <strong>and</strong> viceversa.<br />

Table 2.<br />

Sample Simple Pessary Selection Guide Based<br />

on a Woman’s Planned Coital Activity<br />

<strong>and</strong> Introital Integrity<br />

Sexual Activity<br />

Planned<br />

Introital Integrity<br />

Present<br />

Ring*<br />

Oval<br />

Lever Pessary*<br />

Inflatable Donut<br />

Introital Laxity<br />

Present<br />

Cube<br />

Acoital Donut Gellhorn<br />

Cube<br />

Note: If stress incontinence increases or continues with pessary<br />

use, an incontinence pessary can be used,* but coitally<br />

active women will need to be able to do self-care.<br />

*<strong>Pessaries</strong> that have a stress urinary incontinence support<br />

option.<br />

Figure 4.<br />

Inflatable Donut Pessary<br />

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Figure 5.<br />

Gellhorn Short <strong>and</strong> Long-Stem <strong>Pessaries</strong><br />

Figure 6.<br />

Cube <strong>Pessaries</strong><br />

Figure 7.<br />

Incontinence <strong>Pessaries</strong><br />

Note: Examples include, top row:<br />

Incontinence Dish (with <strong>and</strong> without<br />

support); middle row: Marl<strong>and</strong> (with<br />

<strong>and</strong> without support); bottom row left:<br />

Ring with support membrane <strong>and</strong><br />

incontinence knob; bottom right:<br />

Incontinence Ring.<br />

presence of drainage holes should<br />

allow continuous drainage of normal<br />

vaginal epithelial shedding<br />

<strong>and</strong> discharge. Retained discharge<br />

may act as a medium <strong>for</strong> bacterial<br />

overgrowth, increasing infection<br />

risk, <strong>and</strong>/or odor. For this reason,<br />

pessary styles with optional<br />

drainage holes (such as Cube pessaries)<br />

are typically preferred<br />

whenever possible.<br />

Providers often prefer to use a<br />

limited selection of available pessaries.<br />

For example, in a survey of<br />

urogynecologists, the majority<br />

reported using Ring pessaries <strong>for</strong><br />

anterior <strong>and</strong> apical defects, spacefilling<br />

pessaries (such as a Donut)<br />

<strong>for</strong> women who have introital<br />

integrity <strong>and</strong> posterior defects, <strong>and</strong><br />

self-retaining pessaries (such as the<br />

Gellhorn) <strong>for</strong> severe prolapse<br />

(Cundiff, Weidner, Visco, Bump, &<br />

Addison, 2000). General gynecologists<br />

reportedly also used Ring pessaries<br />

most frequently, deeming<br />

them easiest to use, with Gellhorn<br />

pessaries used most commonly <strong>for</strong><br />

advanced prolapse (Pott-Grinstein<br />

& Newcomer, 2001). The latter<br />

respondents rated Donut pessaries<br />

the least easy to wear <strong>and</strong> Gellhorn<br />

pessaries most difficult to remove.<br />

Generally, providers’ choice of<br />

styles of pessary to stock <strong>and</strong> fit<br />

appears to be based on the individual’s<br />

training, experience, <strong>and</strong><br />

product availability.<br />

Pessary size selection is also<br />

currently guided by experience<br />

because no specific vaginal measures<br />

have predicted successful fit.<br />

In one study, Pelvic Organ<br />

Prolapse Quantification (POP-Q),<br />

parameters were tested as a potential<br />

objective predictor but were<br />

not found to predict pessary size;<br />

however, women with a shorter<br />

total vaginal length were less likely<br />

to be successfully fitted (Nager<br />

et al., 2009). Thus, pessary fitting<br />

remains an art, with some reliance<br />

on trial <strong>and</strong> error.<br />

Pessary <strong>Fitting</strong><br />

Because there has been little<br />

success in identifying objective<br />

evidence to improve pessary<br />

choice, new providers must rely<br />

on expert opinion <strong>and</strong> mentorship.<br />

Pessary manufacturers provide<br />

recommendations to help the<br />

novice match pessary styles with<br />

patient findings (Bioteque of<br />

America, 2011). Successful fitting<br />

also depends on clinician experience<br />

<strong>and</strong> training. Few nursing or<br />

medical programs spend time<br />

teaching pessary use (Pott-<br />

Grinstein & Newcomer, 2001).<br />

However, with a sound general<br />

background of women’s health<br />

care, even in the absence of optimal<br />

mentorship, clinicians can<br />

educate themselves to become<br />

competent <strong>and</strong> safe providers of<br />

this low-risk intervention.<br />

The goal of fitting is to find a<br />

pessary that improves the target<br />

pelvic floor symptoms, is com<strong>for</strong>table<br />

<strong>for</strong> the patient, is retained<br />

during activity <strong>and</strong> toileting, <strong>and</strong><br />

does not obstruct voiding or defecation,<br />

or cause vaginal irritation.<br />

Suggestions <strong>for</strong> improving fitting<br />

outcomes are listed in Table 3.<br />

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Table 3.<br />

Pessary Selection <strong>and</strong> <strong>Fitting</strong> Tips<br />

Assess <strong>for</strong> <strong>and</strong> treat causes of vaginal tenderness prior to fitting (infection, lesions,<br />

or tension myalgia).<br />

Familiarize the woman with the pessary be<strong>for</strong>e fitting (let her see, feel, <strong>and</strong> fold it; use<br />

visual aids, such as pelvic models or charts, to show how it will stay in her vagina).<br />

<strong>Fitting</strong> will be more com<strong>for</strong>table if the woman has an empty bladder <strong>and</strong> bowel;<br />

however, to test <strong>for</strong> stress incontinence, fitting with the bladder full will facilitate<br />

assessment. If the bowel is full <strong>and</strong> cannot be emptied voluntarily, an enema onsite<br />

or rescheduling the appointment may be most helpful.<br />

Autoclavable fitting kits are available, but keeping a small stock of silicone pessaries<br />

in commonly used sizes <strong>and</strong> shapes may offer a more true-to-life fitting experience.<br />

<strong>Fitting</strong> com<strong>for</strong>t may be improved <strong>for</strong> women who are very apprehensive or sensitive<br />

by the use of lidocaine gel applied to the introitus 5 minutes be<strong>for</strong>e fitting. If genital<br />

tissue is very atrophic or non-elastic, several weeks of topical estrogen therapy prior<br />

to fitting may be optimal.<br />

Refitting may be necessary after weight loss or weight gain, any period of temporary<br />

removal, or during long-term use if atrophic tissue change continues (increased<br />

stenosis or decreased support).<br />

During post-fitting pessary testing, placement of a urine receptacle (“Hat”) in the<br />

commode will ease retrieval if the pessary is expelled. Otherwise, instruct the woman<br />

not to flush the pessary into the plumbing system.<br />

A pessary that is com<strong>for</strong>table <strong>and</strong> retained except during bowel movements may be<br />

a success if the woman chooses to either remove the pessary <strong>for</strong> defecation or<br />

support it digitally during evacuation.<br />

If the pessary is easily expelled, try a larger size or different style. If the pessary is<br />

uncom<strong>for</strong>table or the patient feels pressure, try a smaller size or different style.<br />

Successfully sized, the pessary should be com<strong>for</strong>table; women often say, “I can’t<br />

even tell it’s there!”<br />

Make sure a system is in place to identify missed pessary follow-up visits to avoid<br />

potential problems related to pessary neglect.<br />

Figure 8.<br />

Illustration of Digital Measurement of the Vagina, a Potential Aid to<br />

Initial Pessary Choice<br />

Notes: Line A: The vaginal length from posterior symphysis to apex or posterior<br />

<strong>for</strong>nix can be useful <strong>for</strong> sizing Ring <strong>and</strong> Donut pessaries, or the length of a Gellhorn<br />

neck. Line B: The vaginal width at the apex can be useful when considering the<br />

diameter of the Gellhorn dish. Line C: The diameter of the introitus <strong>and</strong> vaginal shaft<br />

can help in making an initial Cube choice.<br />

Although definitive measurements<br />

have not been identified to<br />

aid size <strong>and</strong> style choice, experienced<br />

providers typically note<br />

several digital measurements <strong>and</strong><br />

assess pelvic muscle tone <strong>and</strong><br />

support during pelvic examination<br />

(see Figure 8). These determinations<br />

can help the provider<br />

develop a mental image of the<br />

vaginal size, shape, <strong>and</strong> support.<br />

The initial pessary attempt can<br />

then be made using the pessary<br />

that fits this visual image. Table 4<br />

lists suggested steps in pessary fitting<br />

based on clinical experience<br />

<strong>and</strong> expert opinion.<br />

The average number of pessaries<br />

tried during a successful<br />

pessary fitting is two to three, typically<br />

at a single session; however,<br />

up to two follow-up fitting sessions<br />

have been reported prior to<br />

successful fitting (Jones et al.,<br />

2008; Komesu et al., 2007; Maito<br />

et al., 2006; Robert & Mainprize,<br />

2002; Wu et al., 1997). Women<br />

unable to retain a pessary at an<br />

initial fitting are less likely to be<br />

successful at subsequent fittings<br />

(Maito et al., 2006), but persistence<br />

may pay off. Clemons,<br />

Aguilar, Tillinghast et al. (2004b)<br />

found 22 of 49 women who could<br />

not be fit at the first visit were successfully<br />

fit on the second visit. In<br />

that study, a Gellhorn pessary was<br />

more likely to require refitting<br />

than a Ring, suggesting Ring pessaries<br />

are easier <strong>for</strong> providers to<br />

size correctly. For women who prefer<br />

pessary treatment but have difficulty<br />

retaining any single pessary,<br />

occasional use of double pessaries,<br />

including a Donut with Gellhorn<br />

or double Ring, has been reported<br />

(Myers, LaSala, & Murphy, 1998;<br />

Singh & Reid, 2002).<br />

Prior to fitting, women should<br />

be in<strong>for</strong>med that the risk of a pessary<br />

trial is minimal, while the<br />

potential symptom-relief can be<br />

great. It may be helpful to be optimistic,<br />

normalizing the fitting situation,<br />

while in<strong>for</strong>ming the woman<br />

prior to fitting that an appropriate<br />

pessary may not be identified.<br />

Clinicians also need to remember<br />

that successful fitting after three or<br />

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four attempts is less likely. To aid<br />

underst<strong>and</strong>ing of current pessary<br />

choices, the following sections<br />

look more specifically at commonly<br />

used pessary options.<br />

Table 4.<br />

Steps to Pessary <strong>Fitting</strong><br />

1. Review treatment goals <strong>and</strong> expectations.<br />

2. Ask the woman to empty her bladder <strong>and</strong> bowels.<br />

3. Ask the woman to assume Semi-Fowler position, a position that is generally<br />

com<strong>for</strong>table <strong>and</strong> offers her a view of the fitting if desired.<br />

4. Gently replace any vault eversion or procidentia prior to sizing.<br />

5. After amply applying water-based lubricant to the vaginal introitus, digitally<br />

assess vaginal size, shape, <strong>and</strong> support, <strong>and</strong> <strong>for</strong> any relative contraindications<br />

to the fitting (pain with palpation, vaginal infection or lesions, full rectum).<br />

6. Select the appropriate stocked pessary or fitting kit model, <strong>and</strong> clean it with<br />

soap, rinsing well with water.<br />

7. Apply additional water-based lubricant to the leading edge of the pessary if<br />

needed.<br />

8. Insert the pessary, applying pressure gently toward the posterior vaginal wall<br />

<strong>and</strong>/or obliquely (at 11:00 <strong>and</strong> 5:00 positions related to the introitus) in the<br />

largest diameter, avoiding pressure on the sensitive urethra.<br />

9. To check initial fit, ask the woman to Valsalva <strong>and</strong> cough (in lithotomy <strong>and</strong><br />

st<strong>and</strong>ing postions) – the correct pessary should be com<strong>for</strong>table <strong>and</strong> may<br />

advance toward the introitus with pressure <strong>and</strong> recede with relaxation, but it<br />

should not pass through the introitus. The examiner should be able to gently<br />

rock the pessary in place, demonstrating that it is not pressing too tightly on the<br />

vaginal walls.<br />

10. Ask the woman to st<strong>and</strong>, move about the examination room, <strong>and</strong> simulate<br />

activities she would normally do (walking, bending to pick up objects on the<br />

floor, changing from st<strong>and</strong>ing to sitting) <strong>and</strong> report any discom<strong>for</strong>t.<br />

11. Ask the woman to sit on the toilet, void, <strong>and</strong> Valsalva gently, simulating<br />

defecation. For actual defecation, it may be helpful <strong>for</strong> her to support the<br />

pessary digitally.<br />

12. If the fitting is successful to this point, review expectations <strong>and</strong> schedule a<br />

return visit. If the pessary is expelled or uncom<strong>for</strong>table, start the fitting process<br />

again.<br />

13. Whether or not the fitting is successful, document any shape <strong>and</strong> size of<br />

pessary used to avoid repeat attempts at subsequent visits.<br />

Insertion <strong>and</strong> Removal of<br />

Specific <strong>Pessaries</strong> <strong>for</strong> Women<br />

With Introital <strong>Support</strong><br />

Ring with <strong>and</strong> without support<br />

membrane. The Ring pessary<br />

<strong>and</strong> Ring with support membrane<br />

(see Figure 2) are common<br />

first-line choices <strong>for</strong> most types<br />

of POP. They typically include a<br />

rigid, hinged nylon ring that fits<br />

into the length of the vagina, providing<br />

support <strong>for</strong> the anterior,<br />

posterior, <strong>and</strong> apical walls. The<br />

optional support membrane may<br />

add additional support if anterior<br />

or posterior compartment prolapse<br />

are present (such as cystocele<br />

or rectocele). The position of<br />

the hinge is marked either by<br />

notches in a Ring or finger-sized<br />

holes in the Ring with support<br />

membrane. To retain this type of<br />

pessary, the introitus <strong>and</strong>/or<br />

pelvic floor must provide enough<br />

support to contain the pessary.<br />

Ring pessaries tend to be easiest<br />

<strong>for</strong> both clinicians <strong>and</strong><br />

patients to use. Many women are<br />

able to remove <strong>and</strong> replace a Ring<br />

pessary without difficulty. Even<br />

when a Ring pessary is in place,<br />

coitus may be com<strong>for</strong>table <strong>for</strong><br />

both partners. Ring pessaries with<br />

or without support are also available<br />

with a urethral support knob<br />

<strong>for</strong> the treatment of stress UI.<br />

To fit a Ring pessary, the vagina<br />

is measured digitally or with a<br />

vaginal measuring instrument to<br />

assess the depth, obtaining a general<br />

idea of the shape <strong>and</strong> size of<br />

the intra-vaginal space (see Figure<br />

8). To insert the pessary, lubrication<br />

of the vagina or a hinged edge<br />

of the pessary <strong>and</strong> not the gloved<br />

exam fingers will facilitate a grip<br />

on the folded pessary. The pessary<br />

is folded in half at the hinge <strong>and</strong><br />

inserted through the introital<br />

opening, while applying gentle<br />

downward posterior or perineal<br />

pressure to avoid the sensitive<br />

urethral area. Once inside the<br />

vagina, the pessary will open<br />

spontaneously. This pessary follows<br />

the length of the vagina,<br />

from loosely behind the symphysis<br />

to the vaginal apex or posterior<br />

<strong>for</strong>nix. A Ring pessary can be<br />

rotated 90 degrees while in-place,<br />

which may help prevent spontaneous<br />

expulsion by placing the<br />

hinge transversely to the introitus.<br />

A well-fit Ring pessary will stay<br />

in place without applying undue<br />

pressure on the sidewalls, apex,<br />

or introitus, <strong>and</strong> will not be<br />

noticeable by the patient. If the<br />

woman describes discom<strong>for</strong>t from<br />

the pessary fitting too near the<br />

introitus during movement, it is<br />

either too large or there is insufficient<br />

introital support to hold the<br />

pessary in place. Removal <strong>and</strong><br />

digital re-sizing may suggest<br />

whether a larger or smaller pessary<br />

may work better. If two or<br />

three tries are not effective, a selfretaining<br />

pessary, such as a<br />

Gellhorn or Cube, may be a better<br />

option.<br />

To remove a Ring pessary,<br />

lubricate the introitus, put an<br />

examining finger through the finger-size<br />

hole or at a hinge notch,<br />

rotate the pessary to bring the<br />

hinge anteriorally to the introi-<br />

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SPECIAL SERIES ON PESSARIES<br />

tus, <strong>and</strong> gently pull downward,<br />

diagonally, <strong>and</strong> out. The vaginal<br />

walls will help to fold the pessary<br />

as it exits. Atrophic or<br />

scarred tissue may fissure at the<br />

posterior <strong>for</strong>nix with removal.<br />

Increased lubrication, moisturization,<br />

or estrogenation may<br />

ease future use. The most common<br />

sizes of Ring pessary are 2<br />

through 5 (whole numbers).<br />

Donut <strong>and</strong> Inflatable-Donut<br />

pessaries. If a Ring pessary is not<br />

successful, but there is some<br />

introital support, a Donut or<br />

Inflatable-Donut pessary may be an<br />

option (see Figures 3 <strong>and</strong> 4). Donut<br />

pessaries are essentially thicker<br />

Rings <strong>and</strong> may fill a vagina<br />

enlarged by loss of elasticity more<br />

completely; however, these pessaries<br />

are in more complete contact<br />

with the vaginal epithelium, which<br />

may increase the risk of mechanical<br />

tissue injury or discharge production<br />

<strong>and</strong> retention. Some<br />

women may be able to remove <strong>and</strong><br />

replace traditional Donut pessaries<br />

themselves, but com<strong>for</strong>table vaginal<br />

intercourse is unlikely. Infla -<br />

table Donut pessaries, which are a<br />

silicone variation of an older latex<br />

inflatable pessary called the Inflatoball,<br />

have a stem <strong>and</strong> valve <strong>for</strong><br />

inflation <strong>and</strong> deflation like a balloon,<br />

<strong>and</strong> are designed to be inserted<br />

<strong>and</strong> removed at frequent intervals<br />

(within 48 hours). Manu -<br />

facturer instructions should be<br />

reviewed be<strong>for</strong>e attempting to autoclave<br />

Donut pessaries because of<br />

their air-filled core.<br />

During fitting, digital examination<br />

is used to assess both the<br />

depth <strong>and</strong> width of the vagina.<br />

Introital stretching <strong>and</strong> discom<strong>for</strong>t<br />

is more likely with a traditional<br />

Donut, <strong>and</strong> with either type, adequate<br />

lubrication is essential.<br />

With firm digital pressure, a traditional<br />

Donut pessary may be compressed<br />

somewhat to slip through<br />

the introitus more com<strong>for</strong>tably.<br />

Additionally, some Donut pessaries<br />

can be deflated using a needle<br />

<strong>and</strong> syringe to remove air.<br />

After pessary insertion, it can then<br />

be re-inflated by carefully inserting<br />

the needle into the Donut <strong>and</strong><br />

injecting air with the syringe. All<br />

Donut pessaries are typically fit<br />

either like a Ring pessary – along<br />

the length of the vagina – or may<br />

stay in place if fitted snugly into<br />

the circumference of the vaginal<br />

apex with appropriate intrinsic<br />

support.<br />

To remove a traditional Donut<br />

pessary, the introitus is lubricated,<br />

<strong>and</strong> with the examination finger<br />

in the Donut center, the pessary is<br />

pulled gently downward at a diagonal<br />

angle. Some Donut pessaries<br />

can be carefully deflated in situ<br />

using a needle <strong>and</strong> syringe to ease<br />

removal, <strong>and</strong> the Inflatable Donut<br />

pessary should also be deflated<br />

prior to removal.<br />

Other support pessaries re -<br />

quire introital integrity, with indications<br />

based on clinical experience.<br />

They include the Oval<br />

(which may be useful with a narrow<br />

vaginal width); the Hodge <strong>and</strong><br />

Smith Lever pessary (which may<br />

be more com<strong>for</strong>table in women<br />

with a narrow vaginal introitus);<br />

the Gehrung Arch (which may be<br />

effective in women who have an<br />

isolated anterior or posterior wall<br />

prolapse), <strong>and</strong> the Shaatz (which is<br />

a disc, similar to the Ring, but may<br />

offer firmer support). <strong>Fitting</strong> <strong>for</strong><br />

these pessaries is very similar to fitting<br />

of the Ring pessary. Manu -<br />

facturers typically include fitting<br />

instructions with each pessary. If<br />

these types of pessaries cannot be<br />

retained, a self-retaining pessary<br />

may be appropriate.<br />

Insertion <strong>and</strong> Removal<br />

Of Self-Retaining <strong>Pessaries</strong><br />

Gellhorn. The flexible Gellhorn<br />

pessary is an option in women who<br />

cannot retain Ring or similar pessaries<br />

due to introital laxity (see<br />

Figure 5). The shape of the<br />

Gellhorn pessary allows the lateral<br />

vaginal walls to in-fold under<br />

the top dish, while the concave<br />

dish itself may create a suctionlike<br />

action against the proximal<br />

vagina, facilitating pessary retention.<br />

The stem of the Gellhorn follows<br />

the shaft of the vagina, maintaining<br />

correct alignment. The<br />

option of two different stem<br />

lengths (short <strong>and</strong> long) allows<br />

optimal fitting even in women<br />

with a shortened vagina, such as<br />

post-hysterectomy wo men.<br />

Although the ability of the<br />

Gellhorn to be somewhat selfretaining<br />

can be a considerable<br />

advantage, it also makes this pessary<br />

more difficult <strong>for</strong> clinicians<br />

<strong>and</strong> patients to remove. In addition,<br />

the Gellhorn pessary may be<br />

more likely to cause mechanical<br />

trauma to the vaginal tissue. As<br />

with other pessaries, Gellhorn fitting<br />

involves measurement of the<br />

vagina, in this case, assessing both<br />

the diameter of the introitus <strong>and</strong><br />

the apex to approximate the correct<br />

size of the dish <strong>and</strong> of the<br />

vaginal length to determine<br />

whether a long or short neck is<br />

appropriate (see Figure 8).<br />

To insert the flexible Gellhorn,<br />

the stem can be bent down to the<br />

dish <strong>and</strong> the dish folded, with the<br />

edge of the dish inserted first. The<br />

pessary is then corkscrewed gently<br />

down toward the perineum to<br />

avoid the urethra, then upward to<br />

bring the dish perpendicular to<br />

the vaginal vault. The pessary can<br />

then be pushed gently upward<br />

using the index finger on the knob<br />

at the end of the neck, placing the<br />

dish into the vaginal apex. The<br />

woman can then bear down as an<br />

initial assessment of the likelihood<br />

of retention. If two to three<br />

adjustments in the size of the pessary<br />

do not work, a Cube pessary<br />

may be an option.<br />

Removal of a flexible Gellhorn<br />

is generally achieved by lubricating<br />

the introitus, pulling the knob<br />

at the end of the pessary neck gently<br />

downward (toward the introitus)<br />

<strong>and</strong> laterally (toward a thigh),<br />

<strong>and</strong> using the index finger to hook<br />

<strong>and</strong> bend down the edge of the<br />

dish. When the knob cannot be<br />

easily grasped, a carefully placed<br />

tenaculum or ring <strong>for</strong>ceps may be<br />

helpful to assist removal. Gellhorn<br />

pessaries are sized in quarter-inch<br />

intervals by the dish diameter,<br />

with common sizes generally ranging<br />

from 1.75 to 3 inches.<br />

Cube. The Cube pessary can<br />

also be considered self-retaining<br />

122 UROLOGIC NURSING / May-June 2012 / Volume 32 Number 3


SERIES<br />

(see Figure 6). Compared to a<br />

Gellhorn pessary, a smaller size<br />

can be used; however, Cube use<br />

may also result in mechanical tissue<br />

injury. Cube pessaries are<br />

held in place because the concavities<br />

in the six sides allow vaginal<br />

tissue to con<strong>for</strong>m to the pessary<br />

shape. Because large amounts of<br />

epithelium are in contact with the<br />

pessary, drainage holes are important<br />

to allow desquamated cells<br />

<strong>and</strong> vaginal discharge to drain.<br />

The Cube is designed <strong>for</strong> self-care,<br />

but like the Gellhorn, some<br />

women <strong>and</strong> providers find it difficult<br />

to remove due to the suction.<br />

Softness <strong>and</strong> compressibility of<br />

the silicone used vary by manufacturer.<br />

Softer Cubes can be easier<br />

to insert, but firmer devices<br />

may be more likely to be retained,<br />

<strong>and</strong> choice is typically based on<br />

provider experience. The Cube<br />

pessary can be placed at different<br />

depths in the vagina, which may<br />

offer an advantage when a woman<br />

has an isolated or site-specific<br />

prolapse.<br />

Size is estimated by digitally<br />

measuring the diameter of the<br />

vaginal shaft <strong>and</strong> vault. To insert,<br />

lubricate the pessary <strong>and</strong> introitus,<br />

compress the pessary, part the<br />

introitus gently, <strong>and</strong> insert the pessary<br />

to the depth that best corrects<br />

the bulge <strong>and</strong> is most com<strong>for</strong>table<br />

<strong>for</strong> the patient. Com monly used<br />

sizes range from 1 to 4.<br />

To remove, lubricate the in -<br />

troitus, apply gentle traction on<br />

the pessary cord to stabilize <strong>and</strong><br />

bring the device toward the introitus,<br />

<strong>and</strong> then insert the tip of the<br />

index finger up above the Cube to<br />

release it <strong>and</strong> pull it gently out of<br />

the vagina. Pulling too hard on the<br />

cord alone will break the cord. If<br />

removal is difficult, a tenaculum,<br />

ring <strong>for</strong>ceps, pessary remover or<br />

crochet hook, or dental tape tied<br />

through several holes can be used<br />

to facilitate bringing the Cube to<br />

the introitus.<br />

Incontinence Pessary Options<br />

Incontinence pessaries help<br />

stabilize the urethra <strong>and</strong> the urethral<br />

vesicle junction to prevent<br />

leakage during times of increased<br />

abdominal pressure. Options<br />

include the Incontinence Ring or<br />

Dish, which are similar to regular<br />

Ring pessaries but offer less vaginal<br />

support; <strong>and</strong> st<strong>and</strong>ard Ring,<br />

Arch (Gehrung), or Lever (Smith-<br />

Hodge) pessaries with an optional<br />

incontinence support knob. Most<br />

of these pessaries are fitted similarly<br />

to a st<strong>and</strong>ard Ring pessary.<br />

While some women use incontinence<br />

pessaries only during exercise,<br />

others use them continuously.<br />

Generally, the incontinence<br />

knob pessaries are fitted more<br />

snugly behind the symphysis,<br />

beneath the urethra. A pessary<br />

that is too loose will not decrease<br />

stress UI <strong>and</strong> may rotate in the<br />

vagina. Too much pressure may<br />

cause discom<strong>for</strong>t, epithelial in -<br />

jury, <strong>and</strong> urinary retention. If the<br />

woman plans to use the pessary<br />

only intermittently or during<br />

exercise, it may be fitted more<br />

snugly to retain urine. Although<br />

pessaries are typically fitted with<br />

an empty bladder, fitting an<br />

incontinence pessary in a woman<br />

with a full bladder may facilitate<br />

testing of both stress UI treatment<br />

during exercise <strong>and</strong> voiding adequacy.<br />

Suggestions <strong>for</strong> Future Research<br />

Although the evidence base<br />

<strong>for</strong> pessary use has been building<br />

in recent years, much of practice<br />

continues to be based predominantly<br />

on expert-opinion. Prac -<br />

ticing providers may fill some of<br />

these gaps through their own<br />

observations <strong>and</strong> inventiveness,<br />

as well as in <strong>for</strong>mal clinical trials<br />

in their own practice. Nurses<br />

involved in pessary care may be<br />

interested in studying ways to<br />

improve patient satisfaction <strong>and</strong><br />

experience. Questions may in -<br />

clude looking at changes in sexual<br />

function; testing appropriate<br />

pre-trial, goal-setting models;<br />

comparing methods of providing<br />

in<strong>for</strong>mation about pessary op tions<br />

<strong>for</strong> individuals <strong>and</strong> lay groups;<br />

<strong>and</strong> evaluating symptom relief<br />

when pessaries are used in conjunction<br />

with other modalities,<br />

such as anticholinergic medications<br />

or urethral bulking agents.<br />

Expert opinion regarding indications<br />

<strong>for</strong> specific pessary types<br />

should be tested in additional<br />

crossover or head-to-head clinical<br />

pessary trials. Cost analyses related<br />

to different aspects of pessary<br />

use are needed. For example,<br />

comparison of costs of pessary use<br />

over time versus surgery, <strong>and</strong><br />

analysis of potential savings from<br />

morbidity prevention may be useful<br />

both to in<strong>for</strong>m individuals<br />

making treatment choices <strong>and</strong><br />

public policy related to reimbursement.<br />

Conclusion<br />

<strong>Support</strong> pessaries are an<br />

important option <strong>for</strong> treatment of<br />

many pelvic floor symptoms.<br />

Currently, providers new to the<br />

field continue to learn pessary<br />

indications, selection, <strong>and</strong> fitting<br />

strategies from a relatively small<br />

evidence base, <strong>and</strong> occasionally,<br />

from conflicting expert opinion.<br />

This article has summarized basic<br />

concepts related to initiating pessary<br />

use. Other articles in this<br />

series will discuss pessary follow<br />

up <strong>and</strong> business strategies.<br />

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SPECIAL SERIES ON PESSARIES<br />

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124 UROLOGIC NURSING / May-June 2012 / Volume 32 Number 3

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