[libribook.com] Traumatic Scar Tissue Management 1st Edition

16.06.2020 Views

Pathophysiological ConsiderationA variety of operative and non-operative procedures are performed toimprove post burn scar quality. These include various topical therapies thatall share a similar mechanism of action, ablating the skin in an attempt toyield a more homogenous surface. Such approaches destroy the epidermisand the basement membrane. Ablating the epidermis of already scarredskin with subsequent protracted reepithelialization may possibly causeadditional dermal fibrosis by initiating a prolonged inflammatory response.The ideal scar improvement modality would leave the epidermis intact andrather improve epidermal thickness via the subsequent release of cell andtissue derived factors that modulate dermal structure and collagendeposition(Rennekampff et al. 2010).

Clinical ConsiderationTiming is everything – in pediatric burn patients, hypertrophic scarringappears to be related to healing time, with a healing time of 21 days or lessleading to the best long-term scar outcomes for patients. According toKishikova et al. (2014):Thorough initial scar management, in the form of proper wound dressing,and follow-up management, in the form of prophylactic scar therapyinterventions, can reduce healing time. The use of (prophylactic) MT forburns taking more than 14 days to heal, and pressure garments in thoseover 21 days, may reduce the inherent risk of hypertrophic scarring posedby prolonged healing times. MT and pressure garments, used in propertiming, optimize healing time and improve scar outcomes. At 2 weeks postburn,if healing appears to lag, MT is indicated as a preemptive strike.

Pathophysiological Consideration

A variety of operative and non-operative procedures are performed to

improve post burn scar quality. These include various topical therapies that

all share a similar mechanism of action, ablating the skin in an attempt to

yield a more homogenous surface. Such approaches destroy the epidermis

and the basement membrane. Ablating the epidermis of already scarred

skin with subsequent protracted reepithelialization may possibly cause

additional dermal fibrosis by initiating a prolonged inflammatory response.

The ideal scar improvement modality would leave the epidermis intact and

rather improve epidermal thickness via the subsequent release of cell and

tissue derived factors that modulate dermal structure and collagen

deposition

(Rennekampff et al. 2010).

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