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Laparoscopy and Hysterectomy 347
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CO2 laser
Suction irrigator probe
Bladder pillars
Uterus
Figure 13.1.8. The bladder pillars are identified and cut close to the cervix with the CO2laser.
Coagulation of the uterine vessels
Figure 13.1.9. While theureter isobserved,the uterinevesselsare skele­tonized, coagulated, and cut.
Coagulation of the cardinal ligament
Cut uterosacral ligament
Figure 13.1.10. The uterusispulledtotheoppositesidewith a grasping forceps. The ureter must be observed to ensure that it is not damaged by the bipolar forceps during coagulation and cutting of the cardinal ligament.
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Ureter has been dissected completely
Figure 13.1.11. The linear stapler is applied across the uterine vessels and cardinal ligament. The ureter is dissected and held away from the stapler jaws.
Prevention of Enterocoele (Moschcowitz Procedure)
By obliterating the posterior cul-de-sac,this procedure helps pre­vent enterocele and should be considered, especially in patients with a deep pelvis. A continuous nonabsorbable or delayed
Anterior culdotomy incision line by CO laser
Bladder
Uterus
2
absorbable suture is placed through the various structures of the posterior cul-de-sac, preventing herniation into the rectovaginal space. The suture is started laterally over the periureteral area after the ureter is located. It is passed through the serosa of the
Bladder
Uterus
Ureter
Figure 13.1.12. The uterus is elevated, and as the assistant identifies the posterior fornix, a laparoscopic posterior culdotomy is done. The gynecologist must select the correct location so that the rectum is not involved.
Rectum
Rectum
Posterior culdotomy incision line by CO laser
2
Figure 13.1.13. The uterus is mobilized, and as it is pushed down, a laparoscopic anterior culdotomy is created by using the CO
2
laser.
rectosigmoid colon posteriorly, the contralateral side to include
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the oppositeperiureteral area,andtheanteriorvaginal wall. When it is tied, the posterior cul-de-sac is obliterated. Injury to the ureter, rectum, and bladder is avoided by meticulous suturing. Several variations to the Moschcowitz procedure (e.g., Halban’s technique) that may be used alternatively have been described in the literature.
Final Laparoscopic Evaluation
The pelvic and abdominal cavities are evaluated laparoscopically, irrigated, andcleared of blood clots and debris. The pelvis is filled with 300 to 500 mL of lactated Ringer’s solution, and the pedicles and vaginal cuff areinspected for any bleeding with the patient in reverse Trendelenburg position.[18] Intra-abdominal pressure is reduced and the pedicles are reinspected to confirm hemostasis. The vaginal cuff is examined to ensure that no small bowel or omental tissue is included in its closure. At this point, the fluid in the pelvis should be clear and a look at the ureters should confirm normal peristalsis and anatomic integrity. To avoid inci­sional omental or bowel strangulation after the removal of any trocars more than 5 mmin size, thefascia is repairedwith delayed absorbable sutures.[24]
HYSTERECTOMY FOR EXTENSIVE PELVIC ENDOMETRIOSIS AND ADHESIONS
In women who have extensive endometriosis, the rectosigmoid colon often is densely adherent to the posterior aspect of the uterus (Figure 13.1.14). Similarly, if the ovaries are affected by endometriosis and endometriomas, they may become attached to the pelvic side wall. To coagulate the uterine artery, it may be necessary to dissect the pelvic side wall and identify the uter­ine vessel at its origin from the hypogastric artery. Bipolar for­ceps, harmonic scalpel, clips, or sutures are used. The rectosig­moid colon is separated from the posterior uterus incrementally, and the bowel endometriosis is resected or vaporized (Figures
Laparoscopy and Hysterectomy 349
Figure 13.1.15. The dissection of the rectosigmoid colon is continued.
13.1.15, 13.1.16). The high-power ultrapulse CO2laser is very precise, and with a penetration of only 100 μm, the possibility of delayed bowel necrosis is very low. The CO
laser is an excel-
2
lent instrument for the treatment of endometriosis. Hemosta­sis not obtained with the CO
laser is controlled with cautious
2
application of thebipolarelectrocoagulator. Endometriosis of the rectum, rectovaginal septum, and uterosacral ligament is treated by vaporization, excision, or a combination of the two, and the posterior cul-de-sac is freed (Figures 13.1.17, 13.1.18). Bipolar forceps are used to achieve hemostasis. If the endometriosis has penetrated deeply to the bowel muscularis or mucosa and has caused a stricture requiring anterior or complete resection and repair, this procedure is done after the hysterectomy.
The hysterectomy starts with coagulation and transection of the round ligament close to the pelvic side wall (Figure 13.1.19). The peritoneum is opened, and the pelvic side wall is dissected and developed. This technique allows excellent visualization of retroperitoneal major vessels and ureter (Figure 13.1.20).
The bladder serosa is injected with lactated Ringer’s solu­tion. The bladder flap is developed with the CO
laser or any
2
cutting device. After division of scar tissue in the vesicouterine fold, the suction–irrigator probe is used for blunt dissection and
Figure 13.1.14. The rectosigmoid colon is attached to the posterior aspect of the uterus with dense adhesions and endometriosis. Using the hydrodissection probe and CO colon is separated from the uterus.
laser,the adhesions arelysed and the rectosigmoid
2
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Figure 13.1.16. The rectum, theback ofthe cervix, and the uterosacralligaments are dissected.
Right ovary
with endometriosis
and severe adhesions
mobilization of the bladder. The infundibulopelvic ligaments are desiccated and transected (Figure 13.1.21).
The uterine vessels are coagulated close to the hypogas­tric artery (Figures 13.1.22, 13.1.23) and retracted medially and removedfromtheureter. Theanteriorparametrium is transected. The ureters are freed from the peritoneum andskeletonizeddown to thebladder with the suction–irrigator probe and the laser,har­monic scalpel, scissors, or electric knife.
At the level of the cardinal ligaments, the ureter and the descending branches ofthe uterine artery are close toone another and to the cervix. Therefore, cardinal ligament dissection must be precise to prevent bleeding and ureteral injury. The Liga­Sure device is 10 mm and the linear stapler is 12 mm wide, which considering the short distance between the cervix and
the ureter, increases the risk of ureteral injury with these instru­ments. Using contralateral retraction of the uterus, the cardinal ligament is dissected to identify tissue planes, vessels, and the ureter (Figure 13.1.24). Once the ureter is displaced laterally, the cardinal ligament tissue closest to the cervix is coagulated and transected. The bladder pillars are transected close to the cervix (Figure 13.1.25).
After the uterosacral ligamentsaredissected,folded wet gauze in a sponge forceps or the tip of a right-angle Heaney retractor is used to mark the anterior or posterior vaginal fornix. The vaginal wall is tented and transected horizontally with a laser or electrode (Figures 13.1.26, 13.1.27). Bipolar electrocoagulation may be used tocontrol bleeding. The remainderof the procedure is done vaginally.
Figure 13.1.17. The rectosigmoid colon is freed from the posterior aspect of the uterus and cervix.
hypogastric artery
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External iliac
artery
External iliac
vein
Laparoscopy and Hysterectomy 351
Obliterated
Round ligament
Figure 13.1.18. While the uterus is pulled to the right, the left round ligament is coagulated close to the pelvic side wall.
Developing the paravesical space
Obliterated
hypogastric artery
Figure 13.1.19. The hydrodissection probe is used as a backstop for the CO2laser to develop the paravesical space. The gynecologist must be careful to avoid injury to the major pelvic side wall vessels and the ureter.
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Uterine artery
Hypogastric
Left ureter
Developing the
vesicovaginal space
Bladder
artery
Figure 13.1.20. The anterior leaf of the left broad ligament is dissected with hydrodissection and the CO2laser to develop the vesicovaginal space.
Infundibulopelvic
ligament
Hypogastric
artery
Left ureter
Figure 13.1.21. The left infundibulopelvic ligament is coagulated close to the ovary with bipolar forceps.
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Obliterated
hypogastric artery
Uterine
vessels
Hypogastric
artery
Left ureter
Figure 13.1.22. The paravesical space is developed, and the uterine vessels are identified. The uterine artery at its origin from the hypogastric artery is coagulated with bipolar forceps. The ureter is observed, and excessive heat is avoided to prevent ureteral injury.
HYSTERECTOMY FOR LARGE MYOMAS
The safety of the laparoscopic approach to hysterectomy for large myomatous uteri has been demonstrated in numerous studies. Both Wattiez et al. [25] and Seracchioli [26] et al. reported on laparoscopic hysterectomies for uteri weighing more than 500 g, with comparable complication rates and operating times and shorter convalescence versus the abdominal approach.
The following factorsmustbe considered in selecting patients
for this procedure:
1. The patient must have adequate hemoglobin and hematocrit to decrease the possibility of transfusion.
2. Gonadotropin-releasing hormone (GnRH) analogues are advisable if the uterus is more than18 weeks’ gestational size.
3. The primary trocar should beinserted between theumbilicus and thexiphoidiftheuterusismorethan18weeks’gestational size. The secondary trocars should be placed nearer to the umbilicus than usual.
A uterus more than 16 weeks’ gestational size with multiple
large leiomyomas is more difficult to manipulate laparoscopi­cally. Three and, at times, four secondary trocars are introduced to provide adequate traction to the uterus if the anatomy is dis­torted, and ureteral dissection may be recommended in this sit­uation. Although it is possible to completely dissect the uterus
Left ureter
Cardinal ligament
Figure 13.1.23. While the uterus is pulled to the right, bipolar forceps are used to coagulate the cardinal ligaments close to the cervix. The ureter is distanced from the bipolar forceps.
Figure 13.1.24. The cardinal ligament is dissected with the CO2laser.
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Left bladder pillar
Right angle retractor
in anterior fornix
CO2 laser
Figure 13.1.26. An assistant places a right-angle Heaney retractor in the anterior fornix, and the CO culdotomy.
laser is used to create an anterior
2
Figure 13.1.25. The vesicocervical fascia (bladder pillars) is dissected close to the cervix with the CO
laser.
2
laparoscopically, it takes longer and a combination of laparo­scopic and vaginal approaches is preferred. If there is a large pe­dunculated leiomyoma interfering with theexposure and laparo­scopicmanipulation,myomectomyisdonefirst.Thelaparoscopic approach is continued until the cardinal ligaments are reached, and the remaining portion of the procedure is completed vagi­nally. After the uterosacral and cardinal ligaments are ligated and cut vaginally, the uterus is morcellated and removed vaginally.
TOTAL LAPAROSCOPIC HYSTERECTOMY
TLH is a technically challenging procedure. Proficiency andcom­fort with this procedure require years of experience. In the largest
series of total laparoscopic hysterectomies by Wattiez et al. [27], comprising 1647 cases over 10 years, the average operating time was 102.5 minutes, with an average uterine weight of 235 g and a
3.4% major complication rate. If TLH is planned, two 4 × 4wetspongesareplacedina
surgical latex glove and inserted into the vagina to prevent loss of pneumoperitoneum. When contralateral traction is applied to the uterus, the vaginal wall surrounding the cervix is outlined, coagulated with the unipolar scissors or bipolar forceps, and cut circumferentially until the cervix is separated (Figure 13.1.28). The specimen is pulled to mid-vagina but not removed, to pre­serve pneumoperitoneum. Alternatively, a colpotomizer, several of which are available on the market, may be used to delineate the vaginal cuff. This allows the cervix to be circumscribed at a higher level while preserving the uterosacral–cardinal ligament complex and has been referred to in the literature as total laparo­scopic intrafascial hysterectomy (TLIH).[28] The vaginal cuff is
Right angle retractor
in posterior fornix
Figure 13.1.27. A right-angle Heaney retractor helps identify the site for a posterior culdotomy. The CO2laser cuts the remainder of the uterosacral and cardinal ligaments.
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Left cardinal-
uterosacral
ligament complex
Figure 13.1.28. After anterior culdotomy and posterior culdotomy are achieved, the remainder of the cardinal and uterosacral ligaments on each side is dissected. The cervix is amputated from the vagina. The uterus is removed.
irrigated and inspected for active bleeding. Once hemostasis is achieved, vaginal angles are sutured to the adjacent cardinal and uterosacral ligaments; care is taken to avoid the ureters. The rest of the vaginal cuff is closed with polydioxanone(PDS)orpolyglactin (Vicryl) suture on a straight or curved needle using the extracor­poreal or intracorporeal knot-tying technique (Figures 13.1.29,
13.1.30). Endoscopic suturing is difficultand time consuming for an unskilled surgeon, and the cuff closure should be done vagi­nally in such cases. Thermal electrocoagulation or a harmonic device should be used cautiously at the vaginal cuff to prevent tissue necrosis and subsequent breakdown if sutures are placed in nonviable tissue.
Left cardinal-uterosacral
ligaments
Because of theclose proximity of thebladder, ureters, rectum,
and uterine arteries to one another, the most difficult aspect of TLH involves ligation andtransection of theuterosacral–cardinal ligament. An expert laparoscopist will be able to place adequate traction on the uterus to avoid injury to these pelvic structures; however, concomitant pelvic disease may distort the anatomy. A rectum that is adherent to the posterior cul-de-sac may be thought to be a thickened uterosacral ligament. A ureter may be mistaken for pelvic vasculature in the case of extensive pelvic adhesions or an anomalous renal system. In contrast, employ­ing a vaginal approach when ligating the uterosacral–cardinal ligament complex affords the laparoscopist the benefit of tactile
Figure 13.1.29. After the uterus is removed, two sponges are placed in a surgical glove and left inside the vagina to prevent the loss of pneumoperitoneum. The vaginal angles are sutured to the uterosacral–cardinal ligament complex, and the cuff is closed with 0 Vicryl laparoscopic sutures and intracorporeal or extracorporeal knot tying.
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(0.4% to 1.4%), menstrual bleeding (25%), and vaginal dis­charge (10%).[35] Approximately 22% of patients require a sec­ond procedure for persistent symptoms following supracervi­cal hysterectomy.[36] The uterus is morcellated and removed through a 10- to 20-mm trocar with an electric morcellator. The cervical stump is closed with interrupted absorbable sutures and covered with peritoneum sewn transversely with either continu­ous or interrupted sutures. Peritoneal washing and inspection of the pelvis and abdomen are done at the end of the procedure.
If the vagina was not entered, there are fewer sexual restric-
tions. These patients are advised of the continued risk of cervical neoplasia and the need for annual examinations and Papanico­laou smears.
Figure 13.1.30. The vaginalcuffisrepaired laparoscopically. Theround ligaments and upper portion of the broad ligaments have been cut and suture ligated.
inspection of the cervix and vagina, using hands instead of endo­scopic instruments. In doing so, the bladder, ureters, and other pelvic structures can be felt more confidently to avoid injury.
SUPRACERVICAL (SUBTOTAL) LAPAROSCOPIC HYSTERECTOMY
Supracervical hysterectomyisrequested by patients andpreferred by some gynecologists who believe that the cervix affects sexual­ity and orgasm and helps provide better vaginal support. A com­parison [29] of the risks and benefits of subtotal hysterectomy with those of total hysterectomy in women at low risk for cer­vical cancer revealed the following operative complication rates and ranges for total abdominal hysterectomy and subtotal hys­terectomy, respectively: infection 3% (3% to 20%) and 1.4% (1% to 5%), hemorrhage 2% (2% to 15.4%) and 2% (0.7% to 4%), adjacent organ injury 1% (0.7% to 2%) and 0.7% (0.6% to 1%). The study design was a decision analysis and concluded that pro­posed benefits from subtotal hysterectomy had not been proven. More recent reports by Munro [30] and Learmen et al. [31] were also unable to demonstrate any significant difference in short­and long-term outcomes between supracervical hysterectomy and total abdominal hysterectomy. The procedure may be per­formed laparoscopically, and the specimen is morcellated before removal from the peritoneal cavity through a small abdominal incision. An electric morcellator is recommended for this purpose (e.g., 15-, 20-, and 25-mm morcellators by Gynecare [Johnson & Johnson] and Semm [WISAP]). A comparison among laparo­scopic supracervical hysterectomy (LSH), LAVH, and TLH failed to demonstrate any clear benefit with LSH.[32–34]
The uterine vessels are coagulated and cut at the level of the cardinal ligaments above the uterosacral ligaments. The uterus is retracted, and its lower segment is amputated with scissors, a unipolar endoscopic electrode, or laser. After the uterus is tran­sected from the cervix, the uterine manipulator is removed vagi­nally, the cervical stump is irrigated, and hemostasis is achieved. The endocervical epithelium lining the cervical canal is vapor­ized or coagulated with the laser or electrosurgery. The rest of the endocervical canal is ablated vaginally or laparoscop­ically to reduce the risk of intraepithelial cervical neoplasia
CLASSIC INTRAFASCIAL SUPRACERVICAL HYSTERECTOMY
Semm [37] described coring the cervix intrafascially without colpotomy by using a calibrated resection tool (CURT) that removes the transformation zone to prevent the subsequent potential development of cervical carcinoma (Figures 13.1.31–
13.1.34). The pelvic floor support is maintained, the ureters are not jeopardized, and sexual function is not compromised. Semm suggested that the classic intrafascial supracervical hysterectomy (CISH) technique should replace total hysterectomy in 80% of patients.[38] It preserves the blood supply to the lower pelvis and prevents subsequent uterine prolapse. Mettler and cowork­ers [39] described an approach for doing endoscopic intrafascial supracervical hysterectomy using a serrated-edged macromor­cellator. When the endoscopic approach for dissection and uter­ine extraction was used with the morcellator, a colpotomy was avoided.Another modification involvednearly complete excision (95%) of the endocervical mucosa with the calibrated resection instrument. Maintaining the cardinal ligaments provides sup­port to the cervical stump, and the risks of hemorrhage and gen­itourinary complications are reduced by avoiding dissection of the parametrium at the level of the endocervix.
An evaluation of the efficacy of CISH was ascertained in 90 patients.[40] No major complications occurred, even in women who hadlarge myomas. The average operating time was 170min­utes, blood loss was lower than that from conventional hysterec­tomy, and no procedure was converted to a laparotomy. Kim and coauthors [41] comparedCISH with TLH and LAVH. They found among three groups that CISH resulted in lowest blood loss and the fewest complications and suggested that CISH was preferable for patients with myomas.
COMPARISON OF OUTCOMES FOR VAGINAL, ABDOMINAL, AND LAPAROSCOPIC HYSTERECTOMIES
There is ample evidence in the literature that laparoscopic hys­terectomy compares favorably with abdominal hysterectomy, offering reduced morbidity, expense, and discomfort.[42–44] In a multicenter randomized comparison of 34 women undergoing LAVH and 31 women undergoing abdominal hysterectomy [45], although the mean operating time was significantly longer for LAVH (179.8 vs. 146 minutes), LAVH required a considerably