Laparoscopic paraaortic lymphadenectomy using laparosonic coagulating shears

A comparative study of laparoscopic extraperitoneal lymphadenectomy [correction of laparoscopy] with the use of ultrasonically activated shears

OBJECTIVE

We evaluated the use of the harmonic scalpel in reducing the occurrence of symptomatic lymphoceles and its related complications in paraaortic laparoscopic lymphadenectomies (PALLs).

STUDY DESIGN

All PALL that were performed at the Institut Claudius Regaud between January 2003 and June 2007 were included. Since January 2006, the harmonic scalpel has been used systematically for all lymphostasis. Lymphoceles that required treatment were recorded as a complication.

RESULTS

Ninety-eight patients were enrolled, 62 PALLs were performed with the standard technique (control group), and 36 PALLs were performed with the harmonic scalpel (study group). There were no differences regarding operating time, blood loss, median nodal yield, and duration of hospital stay. Seven patients of the control group vs none of the study group (P = .03) experienced a symptomatic lymphocele that required medical treatment; 4 patients had radiologic drainage, and 1 patient had surgical drainage.

CONCLUSION

We demonstrate the efficacy of harmonic scalpel in reducing the occurrence of symptomatic lymphoceles in paraaortic extraperitoneal lymphadenectomy.

Laparoscopic lymphadenectomy for gynecologic malignancies using ultrasonically activated shears: analysis of first 100 cases

OBJECTIVE

To evaluate the feasibility, safety and utility of the ultrasonic shears for laparoscopic pelvic and para-aortic lymph node retrieval in the treatment of gynecologic cancers.

METHODS

Data on laparoscopic lymphadenectomy performed for gynecologic malignancies using ultrasonic shears over a 5-year period were collected and analyzed prospectively.

RESULTS

Laparoscopic lymphadenectomy using ultrasonic shears was performed on 100 patients with a median age of 58 (17-87) years. The types of malignancies included cervical (n = 29), endometrial (n = 48), ovarian (n = 15), fallopian tube (n = 2), malignant mixed mesodermal tumor (n = 2), vaginal (n = 2) and synchronous ovarian and endometrial cancers (n = 2). Sites of lymphadenectomy included pelvic (n = 49), para-aortic (n = 30) or both pelvic and para-aortic (n = 21). The median nodal yield was 22 (0-87). 66/100 were complete lymphadenectomies with a median nodal yield of 28 (2-71). The median length of hospital stay was 2 (1-13) days and the average blood loss was 148 (0-500) ml. Overall complication rate was 13%. There were 3 intra-operative complications, which were all managed laparoscopically. There were no unplanned conversions to laparotomy. There were 10 post-operative complications including port-site metastasis in a patient with positive nodes (n = 1), trocar-site hernia requiring a second laparoscopy (n = 1), deep leg vein thrombosis (n = 1), and a small bowel obstruction (n = 1).

CONCLUSIONS

This is the largest series to date demonstrating the safety and efficacy of ultrasonic shears in laparoscopic lymphadenectomy for gynecologic malignancies. In addition to the potential for lowering the risk for tissue damage, ultrasonic shears offer multifunctionality which allows for a simpler technique with the use of fewer instruments.

Laparoscopic lymph node dissection using ultrasonically activated shears: comparison with electrosurgery

PURPOSE

To assess and compare perioperative parameters in two groups of patients treated by different laparoscopic techniques of lymph node dissection (LND) for gynecologic cancer.

PATIENTS AND METHODS

Between April 1996 and March 2001, 59 consecutive women with microinvasive cervical cancer (N = 5) or clinical stage I endometrial cancer (N = 54) underwent laparoscopic LND during a primary staging procedure using an electrosurgery (ELC) or ultrasonic (US) operative technique. The two groups were compared for perioperative outcomes. Differences between the two groups were determined by the Wilcoxon's rank-sum test.

RESULTS

Laparoscopic LND and other staging procedures were completed successfully in 58 women (98.3%). There were no statistically significant differences between the groups with regard to perioperative outcomes (operation time, time for LND, blood loss, hospital stay, complications), but there was a significant difference (P = 0.0008) in the number of lymph nodes harvested: a mean of 13.7 in the ELC group and 17.5 in the US group. The pathologists found that the reading of histology slides was easier after US dissections because of the greater depth of thermal injury in the lymphatic tissue in ELC group.

CONCLUSION

The US operative technique ensures efficient coagulation, cutting, dissection, and grasping for laparoscopic LND in patients with cervical and endometrial cancer.

Laparoscopic staging of endometrial cancer using laparosonic instruments: comparison with electrosurgery

OBJECTIVE

To compare perioperative parameters in two groups of women with different laparoscopic operative techniques in surgical staging of endometrial cancer (EC).

STUDY DESIGN

Thirty randomly allocated and laparoscopically treated women with EC. Fifteen patients were operated by electrosurgery, 15 patients by laparosonic operative technique. Differences between the two groups were determined by the Wilcoxon rank-sum test. Probability (P) of less than 0.05 was considered significant.

SETTING

Department of Gynecology and Obstetrics, Endoscopic Training Center, Baby Friendly Hospital, Kladno, Czech Republic.

RESULTS

Laparoscopy was successfully completed in 29 patients. Laparoscopy-assisted surgical staging of EC was performed based on the tumor grade and the depth of myoinvasion. In both groups, in total 18 and 5 women underwent pelvic lymphadenectomy (PLN) and infra-aortic lymph node sampling (IALS), respectively. Three patients had metastases in pelvic lymph nodes. In the electrosurgical hemostasis and laparosonic group the mean total time required to finish the whole operative procedure were 132.1 and 138.3 min, respectively, with no statistically significant difference (P=0.96). There were no significant differences between the groups in any intraoperative or postoperative follow-up variables, except for the number of excised lymph nodes where the difference between electrosurgery and laparosonic group (12.7 versus 18) was statistically significant (P=0.05). In one patient with intraoperative venous bleeding the laparosonic hemostasis was ineffective (successful procedure rate 93.3%). One patient from the electrosurgery group was converted to laparotomy due to injury to the epigastric vessels. This complication had no connection with the surgical techniques studied.

CONCLUSION

It is concluded that both operative technique variants in laparoscopy-assisted surgical staging appear to be feasible and effective for patients with EC.

The virtues and pitfalls of minimally invasive surgery for gynecological malignancies: an update

Operative laparoscopy is still jockeying for its place in the surgical management of gynecological malignancies. Its usefulness in staging these malignancies continues to be investigated, as does its ability to convert abdominal procedures to vaginal procedures. Recent articles also address the role of operative laparoscopy in less common procedures, as well as the curiosity of investigators to gain a better understanding of the 'consequences' of operative laparoscopy by using animal models. The reader is updated by a review of the reports published over the past year and a half.