Faculty Bibliography

With the continued expansion of endoscopic techniques and instruments, laparoscopy and minimally invasive techniques are quickly emerging as a feasible alternative to laparotomy in managing adnexal masses and ovarian cancer.Laparoscopy has the potential to completely and successfully treat both benign and malignant adnexal pathology while decreasing unnecessary morbidity among patients. Further advances in technology, techniques, and instruments can only increase this potential.

BACKGROUND:As cesarean sections become a more common mode of delivery, they have become the most likely cause of vesicouterine fistula formation. The associated pathology with repeat cesarean deliveries may make repair of these fistulas difficult. Computer-enhanced telesurgery, also known as robotic-assisted surgery, offers a 3-dimensional view of the operative field and allows for intricate movements necessary for complex suturing and dissection. These qualities are advantageous in vesicouterine fistula repair. CASE/METHODS:A healthy 34-year-old woman who underwent 4 cesarean deliveries presented with a persistent vesicouterine fistula. Conservative management with bladder decompression and amenorrhea-inducing agents failed. RESULTS:Robotic-assisted laparoscopic repair was successfully performed with the patient maintaining continence after surgery. CONCLUSION/CONCLUSIONS:Robotic-assisted laparoscopic repair of vesicouterine fistulas offers a minimally invasive approach to treatment of a complex disease process.

BACKGROUND:The aim of this study was to retrospectively compare the safety, morbidity, and recurrence rate of total laparoscopic radical hysterectomy (TLRH) with lymphadenectomy and total robotic radical hysterectomy (RRH) with lymphadenectomy for early cervical carcinoma in a series of 99 consecutive women. MATERIALS AND METHODS/METHODS:We studied 99 consecutive patients with FIGO stage Ia1 (LVSI), Ia2, Ib1, Ib2, and IIa cervical cancer, 76 of whom underwent TLRH and 23 underwent RRH with pelvic lymph node dissection. Para-aortic lymphadenectomy, with the superior border of the dissection being the inferior mesenteric artery, was performed in all cases with positive pelvic lymph nodes discovered at frozen section evaluation. RESULTS:The mean blood loss was 157 ml in the RRH group (95% confidence interval [95% CI] 50-400) and 95 ml in the TLRH group (95% CI 30-500) (not significant [NS]). The median length of hospital stay was 3 days in the RRH group (95% CI 2-7) and 4 days in the TLRH group (95% CI 3-7) (NS). The mean operating time was 255 min for the TLRH group (95% CI 182-415) compared with 323 min in the RRH group (95% CI 161-433) (P < 0.05). No significant difference was found between the 2 groups when comparing the recurrence rate. CONCLUSIONS:Robotic radical hysterectomy can be considered a safe and effective therapeutic procedure for managing early-stage cervical cancer without significant differences, if compared with laparoscopic radical hysterectomy, in terms of the recurrence rate and intraoperative and postoperative complications, although multicenter randomized clinical trials with longer follow-up are necessary to evaluate the overall oncologic outcomes of this procedure.

To focus on the recent adoption, patents, experience, and future of Robotic assisted surgery (RAS) applications in gynecologic surgery, a computer aided and manual search for clinical and systematic reviews, randomized controlled trials, prospective observational studies, retrospective studies and case reports published between 1970 and January of 2011 has been performed. The use of RAS in gynecologic patients includes hysterectomy, myomectomy, tubal reanastomoses, radical hysterectomy, lymph node dissection, and sacrocolpopexies. Although individual studies vary, gynecological RAS is often associated with longer operating room time but similar clinical outcomes, decreased blood loss, and shorter hospital stay. RAS procedures on women have, however, their own limitations: the patented equipment is very large, bulky, and expensive, the staff must be trained specifically on draping and docking the instruments, the lack of surgical haptic feedback, a limited vaginal access, a limited specific instrumentation, and the need for larger port incisions requiring fascial closure. The RAS significantly facilitates gynecologic surgery, even if well-designed, prospective studies are needed to fully assess the value of this equipments in particular studies with well-defined clinical and long-term outcomes, including complications, cost, pain, return to normal activity, and quality of life. The future of robotic surgery in gynecology may be bright, but currently, caution is advisable and clinically meaningful long-term outcomes are needed. These recent patents, however, has exciting potential for future applications, especially in long-distance telesurgery and might change the paradigm of gynecologic surgery in the future.

OBJECTIVE: To compare the outcomes of total laparoscopic to robotic approach for hysterectomy and all indicated procedures after controlling for surgeon and other confounding factors. METHODS: Retrospective chart review of all consecutive cases of total laparoscopic and da Vinci robotic hysterectomies between August 2007 and July 2009 by two gynecologic oncology surgeons. Our primary outcome measure was operative procedure time. Secondary measures included complications, conversion to laparotomy, estimated blood loss and length of hospital stay. A mixed model with a random intercept was applied to control for surgeon and other confounders. Wilcoxon rank-sum, chi-square and Fisher's exact tests were used for the statistical analysis. RESULTS: The 124 patients included in the study consisted of 77 total laparoscopic hysterectomies and 47 robotic hysterectomies. Both groups had similar baseline characteristics, indications for surgery and additional procedures performed. The difference between the mean operative procedure time for the total laparoscopic hysterectomy group (111.4 minutes) and the robotic hysterectomy group (150.8 minutes) was statistically significant (p=0.0001) despite the fact that the specimens obtained in the total laparoscopic hysterectomy group were significantly larger (125 g vs. 94 g, p=0.002). The robotic hysterectomy group had statistically less estimated blood loss than the total laparoscopic hysterectomy group (131.5 mL vs. 207.7 mL, p=0.0105) however no patients required a blood transfusion in either group. Both groups had a comparable rate of conversion to laparotomy, intraoperative complications, and length of hospital stay. CONCLUSION: Total laparoscopic hysterectomy can be performed safely and in less operative time compared to robotic hysterectomy when performed by trained surgeons.

Chylous ascites is an uncommon postoperative complication of gynecological surgery. We report a case of chylous ascites following a robotic lymph node dissection for a cervical carcinoma. A 38-year-old woman with IB2 cervical adenocarcinoma with a palpable 3 cm left external iliac lymph node was taken to the operating room for robotic-assisted laparoscopic pelvic and para-aortic lymph node dissection. Patient was discharged on postoperative day 2 after an apparent uncomplicated procedure. The patient was readmitted the hospital on postoperative day 9 with abdominal distention and a CT-scan revealed free fluid in the abdomen and pelvis. A paracentesis demonstrated milky-fluid with an elevated concentration of triglycerides, confirming the diagnosis of chylous ascites. She recovered well with conservative measures. The risk of postoperative chylous ascites following lymph node dissection is still present despite the utilization of new technologies such as the da Vinci robot.

OBJECTIVE: To compare the feasibility and safety of the laparoscopic management of adnexal masses appearing preoperatively benign with those suspicious for malignancy. METHODS: Retrospective study of 694 women that underwent laparoscopic management of an adnexal mass. RESULTS: Laparoscopic management of an adnexal mass was completed in 678 patients. Six hundred and thirty five patients had benign pathology (91.5%) and 53 (7.6%) had primary ovarian cancers. Sixteen patients (2.3%) were converted to laparotomy; there were 13 intraoperative (1.9%) and 16 postoperative complications (2.3%). Patients divided in 2 groups: benign and borderline/malignant tumors. Patients in the benign group had a higher incidence of ovarian cyst rupture (26% vs. 8.7%, p<0.05). Patients in the borderline/malignant group had a statistically significant higher conversion rate to laparotomy (0.9% vs. 16.9%, p<0.001), postoperative complications (1.9% vs. 12.2%, p<0.05), blood loss, operative time, and duration of hospital stay. The incidence of intraoperative complications was similar between the 2 groups. CONCLUSION: Laparoscopic management of masses that are suspicious for malignancy or borderline pathology is associated with an increased risk in specific intra-operative and post-operative morbidities in comparison to benign masses. Surgeons should tailor the operative risks with their patients according to the preoperative likelihood of the mass being carcinoma or borderline malignancy.

OBJECTIVE:To describe 3 cases of peritoneal mesothelioma associated with endometriosis that were managed laparoscopically. DESIGN/METHODS:Case series. SETTING/METHODS:University and community hospitals. PATIENTS/METHODS:Three women with well-differentiated papillary mesothelioma of the peritoneum associated with endometriosis. INTERVENTIONS/METHODS:Laparoscopic excision and treatment of mesothelioma and endometriosis. RESULTS:Three patients underwent laparoscopy for treatment of endometriosis and were found to have peritoneal mesothelioma. All 3 patients underwent total laparoscopic excision of the lesions and were followed up regularly for surveillance of possible recurrence. CONCLUSIONS:In selected cases of well-differentiated papillary mesothelioma associated with pelvic endometriosis, operative laparoscopy can be used effectively to diagnose and treat this condition.