Surgery and Healing in the Developing World - Dartmouth-Hitchcock

Surgery and Healing in the Developing World - Dartmouth-Hitchcock Surgery and Healing in the Developing World - Dartmouth-Hitchcock

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15 142 Surgery and Healing in the Developing World Internal Iliac Artery Ligation The placental implantation site may derive a significant portion of its blood supply from cervical and vaginal branches of the internal iliac artery, and thus bleeding from the placental site may not abate with uterine artery ligation. To ligate an internal iliac artery, you need to establish good exposure. Locate the pulsating common iliac artery, and open the overlying peritoneum. Dissect down to the bifurcation, and carefully incise the sheath of tissue covering the internal iliac artery. Pass a suture beneath the artery and tie. Confirm that pulsations in the external iliac continue and take great care not to lacerate an adjacent great vein. Successful ligation will reduce pulse pressure to the implantation site but not eliminate it. Bilateral ligation may be required. B-Lynch Suture If bleeding following a low tranverse Cesarean is due to an atonic uterus that has not responded to uterotonics (or you are without recourse to these), an alternative or adjunct to ligating the uterine, internal iliac, or ovarian arteries may be placement of a suture designed to compress the uterus as described by B-Lynch, Coker, Lawal et al in 1997. Exteriorize the uterus and ask your assistant to perform bimanual compression. If this is effective in reducing the hemorrhage, you can anticipate a good result with placement of the suture. The technique has been described by B-Lynch essentially as follows. Load a 70-80 mm round bodied needle with a long suture of #2 chromic or plain gut. (Others have described success using 0 vicryl suture.) Drive the needle into the lower uterine segment approximately 3 cm below and slightly medial to the angle of your uterine incision. Reload your driver and now seek a point in the uterine cavity that is about 3 cm above the uterine incision and 4 cm from the lateral edge of the uterus. Loop your long suture over the fundus and down towards the cul-de-sac. Locate a point 4 cm from the lateral edge of the uterus and immediately below your uterine incision and drive the needle through the posterior lower segment to reenter the uterine cavity. Draw the suture snug while your assistant provides compression. Now locate a point on the posterior uterine wall that is located symmetrically on the opposite side, visible beneath your transverse incision and 4 cm medial to the edge of the uterus. Drive your needle through to emerge from the posterior surface of the uterus. Again pause for compression of the uterus and to draw the suture snug. Now loop the suture over the fundus and bring it down to a point 3 cm above and slightly medial to the angle of your uterine incision. Drive the needle through the myometrium to emerge again in the uterine cavity. Reload your needle driver and bring the needle through from within the uterine cavity at a point 3 cm below the incision and again 4 cm from the lateral edge of the uterus. Continue to compress the uterus and draw your suture snug. Tie the two ends securely and close the uterine incision in the usual fashion. Cesarean with Hysterectomy Hysterectomy following a Cesarean is essentially the same technique as standard total hysterectomy (consult a gynecologic surgery text) with the following special considerations. 1. Although the uterus is to be removed, the uterine incision must still be closed for the sake of hemostasis. 2. Anticipate a large amount of edema and thinning of the lower segment, especially if the patient had been allowed to labor prior to her Cesarean.

Basic Obstetrics and Obstetric Surgery in a Mission Setting 143 3. There may be many large and dilated veins. You may compress these to drain them, which may help you to avoid lacerating them. 4. You will need to employ more clamps as you work down the sides of the uterus and cervix as compared to a nonpregnant uterus. 5. The ureters will be dilated by pregnancy and more difficult to palpate. 6. The cervix will most likely be effaced, and thus special care needs be taken to ensure that you have excised the cervix and created a vaginal cuff. Suggested Reading 1. B-Lynch, CA. Coker AH. Lawal et al. The B-Lynch surgical technique for the control of massive postpartum hemorrhage: An alternative to hysterectomy? Five cases reported. Brit J. Obstet Gynaecol 1997; 104:372-375. 2. Bruner JP, Drummond SB, Meenan AL, Gaskin IM. All-fours maneuver for reducing shoulder dystocia during labor. J Reprod Med 1998; 43:439-443. 3. Gonik BA, CA Stringer, B Held. An alternate maneuver for management of shoulder dystocia. Am J Obstet Gynecol 1983; 145:882. 4. Hartfield VJ. Symphysiotomy for shoulder dystocia. Am J Obstet Gynecol 1986; 155:228. 5. King M et al. Primary Surgery. Oxford Medical Publications. 6. Mayo Clinic Manual of Pelvic Surgery. 2nd ed. 2000. Webb M, ed. Lippincott Williams & Wilkins. 7. Obstetrics, Gynecology & Infertility. Revised 4th ed. Scrub Hill Press, 1997 8. Russell JGB. The Rationale of Primitive Delivery Positions. Br J Obstet Gynaecol 1982; 89:712. 9. Van Vugt PJH, Baudoin P, Bloom VM, Duersen TBM. Inversio uteri puerperalis. Acta Obstet Gynecol Scand 1981; 60:353. 10. Wheeless CR. Atlas of Pelvic Surgery. 3rd ed. Williams Obstetrics. 20th ed. Appleton & Lange: Williams & Wilkins, 1997. 11. Woods CE. A principle of physics is applicable to shoulder delivery. Am J Obstet Gynecol 1943; 45:796. 15

Basic Obstetrics <strong>and</strong> Obstetric <strong>Surgery</strong> <strong>in</strong> a Mission Sett<strong>in</strong>g<br />

143<br />

3. There may be many large <strong>and</strong> dilated ve<strong>in</strong>s. You may compress <strong>the</strong>se to<br />

dra<strong>in</strong> <strong>the</strong>m, which may help you to avoid lacerat<strong>in</strong>g <strong>the</strong>m.<br />

4. You will need to employ more clamps as you work down <strong>the</strong> sides of <strong>the</strong><br />

uterus <strong>and</strong> cervix as compared to a nonpregnant uterus.<br />

5. The ureters will be dilated by pregnancy <strong>and</strong> more difficult to palpate.<br />

6. The cervix will most likely be effaced, <strong>and</strong> thus special care needs be taken<br />

to ensure that you have excised <strong>the</strong> cervix <strong>and</strong> created a vag<strong>in</strong>al cuff.<br />

Suggested Read<strong>in</strong>g<br />

1. B-Lynch, CA. Coker AH. Lawal et al. The B-Lynch surgical technique for <strong>the</strong><br />

control of massive postpartum hemorrhage: An alternative to hysterectomy? Five<br />

cases reported. Brit J. Obstet Gynaecol 1997; 104:372-375.<br />

2. Bruner JP, Drummond SB, Meenan AL, Gask<strong>in</strong> IM. All-fours maneuver for reduc<strong>in</strong>g<br />

shoulder dystocia dur<strong>in</strong>g labor. J Reprod Med 1998; 43:439-443.<br />

3. Gonik BA, CA Str<strong>in</strong>ger, B Held. An alternate maneuver for management of shoulder<br />

dystocia. Am J Obstet Gynecol 1983; 145:882.<br />

4. Hartfield VJ. Symphysiotomy for shoulder dystocia. Am J Obstet Gynecol 1986;<br />

155:228.<br />

5. K<strong>in</strong>g M et al. Primary <strong>Surgery</strong>. Oxford Medical Publications.<br />

6. Mayo Cl<strong>in</strong>ic Manual of Pelvic <strong>Surgery</strong>. 2nd ed. 2000. Webb M, ed. Lipp<strong>in</strong>cott<br />

Williams & Wilk<strong>in</strong>s.<br />

7. Obstetrics, Gynecology & Infertility. Revised 4th ed. Scrub Hill Press, 1997<br />

8. Russell JGB. The Rationale of Primitive Delivery Positions. Br J Obstet Gynaecol<br />

1982; 89:712.<br />

9. Van Vugt PJH, Baudo<strong>in</strong> P, Bloom VM, Duersen TBM. Inversio uteri puerperalis.<br />

Acta Obstet Gynecol Sc<strong>and</strong> 1981; 60:353.<br />

10. Wheeless CR. Atlas of Pelvic <strong>Surgery</strong>. 3rd ed. Williams Obstetrics. 20th ed. Appleton<br />

& Lange: Williams & Wilk<strong>in</strong>s, 1997.<br />

11. Woods CE. A pr<strong>in</strong>ciple of physics is applicable to shoulder delivery. Am J Obstet<br />

Gynecol 1943; 45:796.<br />

15

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