De novo adhesions with extraperitoneal endosurgical para-aortic lymphadenectomy versus transperitoneal laparoscopic para-aortic lymphadenectomy: a randomized experimental study

Interest of para-aortic lymphadenectomy for locally advanced cervical cancer in the era of PET scanning

BACKGROUND AND OBJECTIVES

Treatment of locally advanced cervical cancer (LACC) involves pelvic chemoradiotherapy, using an extended field in the case of para-aortic involvement. 18-Fluoro-D-glucose positron emission tomography combined with computer tomography (PET-CT) is an accurate method for the detection of metastatic nodes. The objective of this study was to evaluate the performance of PET-CT for lymph node staging of LACC.

METHODS

This bicentric retrospective study included patients with LACC who had a PET-CT scan followed by para-aortic lymphadenectomy between January 2015 and December 2019. Based on pathological findings, sensitivity, specificity, negative predictive value (NPV), positive predictive value (PPV) and false-negative (FN) rates of PET-CT for para-aortic node involvement were evaluated.

RESULTS

Seventy-one patients who had undergone laparoscopic lymphadenectomy were included in this study. The intraoperative complication rate was 2.8%. Sensitivity, specificity, NPV and PPV for PET-CT were 55% [95% confidence interval (CI) 44.6-67.1], 84% (95% CI 75-92), 93% (95% CI 87-99) and 33% (95% CI 22-44), respectively. FN rates in the case of negative or positive pelvic PET-CT were 5.7% and 9.5%, respectively.

CONCLUSIONS

Para-aortic lymphadenectomy is recommended for lymph node staging in the case of negative para-aortic PET-CT. In view of the low FN rate of PET-CT, surgical staging should be discussed regardless of pelvic status if the patient presents high surgical risk, or if this delays the commencement of chemoradiotherapy.

The Transumbilical Laparoendoscopic Single-Site Extraperitoneal Approach for Pelvic and Para-Aortic Lymphadenectomy: A Technique Note and Feasibility Study

Background

Nowadays, lymphadenectomy could be performed by the transperitoneal or extraperitoneal approach. Nevertheless, each approach has its own advantages and disadvantages. Under these circumstances, we developed a transumbilical laparoendoscopic single-site (TU-LESS) extraperitoneal approach for lymphadenectomy. In this research, the primary goal is to demonstrate the feasibility of the novel approach in systematic lymphadenectomy and present the surgical process step-by-step.

Methods

Between May 2020 and June 2021, patients who had the indications of systematic lymphadenectomy underwent lymphadenectomy via the TU-LESS extraperitoneal approach. This new approach was described in detail, and the clinical characteristics and surgical outcomes were collected and analyzed.

Results

Eight patients with gynecological carcinoma were included in the research, including four with high-risk endometrial cancer and four with early-stage ovarian cancer. The TU-LESS extraperitoneal approach for pelvic and para-aortic lymphadenectomy was successfully performed in all patients without conversion. In all, a median of 26.5 pelvic lymph nodes (range 18–35) and 18.0 para-aortic lymph nodes (range 7–43) were retrieved. There was a median of 166.5 min of surgical time (range 123–205). Patients had speedy recoveries without complications. All patients had positive pain responses after surgery, as well as satisfactory cosmetic and body image outcomes.

Conclusion

Our initial experience showed that it is feasible to perform systematic lymphadenectomy with the TU-LESS extraperitoneal approach. And this new approach may provide a new measure or a beneficial supplement for lymphadenectomy in gynecologic cancer.

Surgical Outcomes of Laparoscopic Pelvic Lymph Node Debulking during Staging Aortic Lymphadenectomy in Locally Advanced Cervical Cancer: A Multicenter Study

Simple Summary

Lymph node metastasis is an important prognostic factor in locally advanced cervical cancer (LACC), which makes correct staging crucial. In contrast to existing studies evaluating pelvic lymphadenectomy after aortic lymphadenectomy, this study focuses on the pelvic node (PLN) debulking technique which has the dual objective of staging and cytoreduction. This is a multicenter retrospective study of patients with LACC and positive pelvic nodes on imaging tests. Feasibility, morbidity and delay in the initiation of chemoradiotherapy (CRT) were evaluated for the PLN debulking by comparing it with a control group of aortic lymphadenectomy alone. Excision of the bulky nodes was possible in 99.4% of patients. There were no differences in complications between the groups and a shorter time from diagnosis and from surgery to the start of CRT was observed in the study group.

Abstract

Background: Few studies have evaluated laparoscopic pelvic lymph node (PLN) debulking during staging aortic lymphadenectomy in locally advanced cervical cancer (LACC). It allows us to know the lymph node status and facilitates the action of chemoradiotherapy (CRT) by reducing tumor burden. We evaluated its feasibility and compared the perioperative morbidity and the time to CRT with a control group. Methods: This was a multicenter retrospective study of patients with LACC FIGO stage IIIC1r who were recipients of CRT. We compared two cohorts: group 1, which consisted of 164 patients with surgical staging by laparoscopic aortic lymphadenectomy and PLN debulking, and group 2, which consisted of 111 patients with aortic lymphadenectomy alone. Results: Excision of the bulky nodes was possible in all patients in group 1 except for one. Surgery lasted a median of 82 min longer in group 1 but there was no greater intraoperative bleeding or increased hospital stay. There were no significant differences in intraoperative or postoperative complications between the groups. A significantly shorter time from surgery to the start of RT was observed in group 1. Conclusions: It is feasible to perform laparoscopic PLN debulking in the same procedure as the staging aortic lymphadenectomy in LACC without increasing surgical or postoperative complications and without delaying the start of CRT compared to single aortic lymphadenectomy.

Feasibility of Laparoscopic Para-Aortic Lymphadenectomy for Locally Advanced Cervical Cancer

Background

Radiological evaluation of para-aortic lymph node metastasis in patients with locally advanced cervical cancer (LACC) possess the risk of missing microscopic metastasis. We commenced laparoscopic para-aortic lymphadenectomy (Lap-PAN) on patients with LACC for surgical staging in 2016. We assessed the feasibility of Lap-PAN in patients with LACC.

Methods

We retrospectively reviewed the records of 31 patients with LACC who were staged at International Federation of Gynecology and Obstetrics (FIGO) 2009 IIB to IVA without enlargement of the para-aortic lymph nodes who underwent radiation therapy in our hospital between January 1, 2011 and December 31, 2018. The postoperative outcomes of Lap-PAN were analyzed, and distinct parameters for each patient, including sites of recurrence and disease-free survival, were compared between the Lap-PAN (n = 12) and no surgery (n = 19) groups.

Results

The average operation time for Lap-PAN was 167 min, and the estimated blood loss was less than 50 ml in all patients. There were no perioperative complications. The average number of excised lymph nodes was 25, and no pathological metastases were observed. There was no difference in disease-free survival rates between the Lap-PAN and no surgery groups (p = 0.42). During the follow-up period, there were two cases of recurrence in the cervix in the Lap-PAN group, and three and four cases of lung and para-aortic lymph node recurrence, respectively in the no-surgery group.

Conclusions

Lap-PAN was safely performed as a pretherapeutic staging method for LACC without worsening patient prognosis. Although Lap-PAN requires a high level of skill, it may be a method to avoid excessive radiation for LACC.

Laparoscopic para-aortic lymphadenectomy: Technique and surgical outcomes

OBJECTIVE

Pelvic and para-aortic lymph node dissection is an important part of staging surgery. Aim of this study is to evaluate perioperative outcomes of patients, who underwent laparoscopic para-aortic lymphadenectomy for gynecological cancer in a single center over a period of 7 years, based on body mass index (BMI), and to present the surgical technique in steps.

METHODS

Data of patients who underwent para-aortic lymphadenectomy at gynecological oncology department of a tertiary center in between March 2013 and July 2020 were analyzed retrospectively. Patients were evaluated in two groups according to their BMI (< 30 kg/m² as non-obese and ≥ 30 kg/m² as obese groups). Surgical technique is described in steps. Perioperative outcomes of the two groups were evaluated.

RESULTS

A total of 230 patients were included in the study. BMI was ≥30 at 58.46 % of the patients. Peri-operative features were not significantly affected by the patient's BMI with the presented surgical technique, however, collected para-aortic lymph node numbers were higher in the group with BMI < 30, though sufficient number of lymph nodes were achieved in both groups.

CONCLUSION

Although some technical difficulties may be encountered, laparoscopic para-aortic lymphadenectomy is feasable in gynecologic oncological surgery independent of BMI. However, surgical experience is important.

Prognostic Value and Therapeutic Implication of Laparoscopic Extraperitoneal Paraaortic Staging in Locally Advanced Cervical Cancer: A Spanish Multicenter Study

PURPOSE

To assess the impact of laparoscopic extraperitoneal paraaortic staging in therapeutic planning and prognosis of patients with locally advanced cervical cancer (LACC) as compared with imaging staging.

METHODS

Retrospective multicenter study of stage IB2 and IIA2 to IVA (FIGO 2009) LACC patients who were candidates for primary chemoradiotherapy. The study (surgical) group included 634 patients undergoing laparoscopic/robotic extraperitoneal paraaortic staging treated with extended-field radiotherapy (EFRT) if lymph node involvement was confirmed. The control (imaging) group included 288 patients treated with EFRT when lymph node involvement was suspected on positron emission tomography-computed tomography scans and/or magnetic resonance imaging.

RESULTS

In the study group, a median of 13 (range 9-17) lymph nodes were removed, with a rate of positive paraaortic nodes of 18%, with metastatic size ≤ 5 mm in 20.4% of cases. Paraaortic EFRT was administered to 18% of patients in the study group and in 58% of controls. In 34% of patients from the surgical group, EFRT was modified according to surgical findings with respect to imaging staging. The median follow-up in the study and control groups was 3.7 and 4.8 years, respectively. In both groups, the overall survival and cancer-specific disease-free survival were similar. The time interval between diagnosis and starting EFRT was 18 days longer in the study group, without differences in overall survival as compared with controls (hazard ratio 1.00, 95% confidence interval 0.998-1.005; p = 0.307).

CONCLUSIONS

Laparoscopic extraperitoneal paraaortic staging in LACC patients is safe and modified therapeutic planning, allowing better selection of candidates for EFRT.

Periaortic Abdominal Fat Area as a Predictor of Surgical Difficulties during Extraperitoneal Laparoscopic Para-aortic Lymphadenectomy

STUDY OBJECTIVE

To evaluate whether obesity is a marker of surgical difficulty during extraperitoneal para-aortic lymphadenectomy.

DESIGN

Retrospective observational cohort study.

SETTING

Tertiary medical center in the Kanazawa area of Japan.

PATIENTS

Eighty-four patients with primary endometrial cancer who underwent extraperitoneal laparoscopic para-aortic lymphadenectomy (LPAND) between January 2005 and December 2017 were included.

INTERVENTIONS

We investigated the correlation between operative times and body mass indexes, visceral fat areas, and periabdominal artery fat areas (PAFAs). The number of lymph nodes harvested was used as an indicator of the degree of surgical completion.

MEASUREMENTS AND MAIN RESULTS

There was no correlation between the operative time and body mass index. Significant correlations were observed between operative time and visceral fat area (p = .026; r = 0.243) and between operative time and PAFA (p = .007; r = 0.293). A multivariate analysis showed that PAFA was a significant independent marker that could be used to predict prolonged operative times for extraperitoneal LPAND (p = .045; odds ratio, 3.05). The number of para-aortic lymph nodes harvested was not significant in the high- and low-PAFA groups (22 and 25, respectively; p = .525).

CONCLUSION

PAFA is an adequate marker of prolonged operative time for extraperitoneal LPAND among patients with endometrial cancer.

Extraperitoneal Para-Aortic Lymphadenectomy by Robot-Assisted Laparoscopy

STUDY OBJECTIVE

To evaluate the outcomes of extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy.

DESIGN

A retrospective study (Canadian Task Force classification III).

SETTING

An academic institution.

PATIENTS

Twenty-three consecutive patients with gynecologic cancer who presented for para-aortic lymphadenectomy between March 2016 and May 2017 were reviewed retrospectively.

INTERVENTIONS

Extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy was performed.

MEASUREMENTS AND MAIN RESULTS

Of the 23 patients reviewed retrospectively, 10 had cervical cancer, 7 had endometrial cancer, 5 had adnexal cancer, and 1 had vaginal cancer. Data regarding patient characteristics, indication for para-aortic lymphadenectomy, type of surgery (infrarenal or inframesenteric), operative time, surgical complications, number of nodes retrieved, and postoperative hospital length of stay were collected. Two patients were excluded because of early perforation of the peritoneum. In total, 21 para-aortic lymphadenectomies were performed (16 infrarenal and 5 inframesenteric). The median skin-to-skin operating time of infrarenal extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy was 170 minutes (range, 90-225 minutes), the median lymph node count was 18 (range, 11-38), and the median estimated blood loss was 50 mL (range, 10-600 mL). The median skin-to-skin operating time of inframesenteric extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy was 120 minutes (range, 90-220 minutes), the median lymph node count was 10 (range, 7-19), and the median estimated blood loss was 30 mL (range, 10-100). Intraoperative complications included 1 thermal lesion of the left genitofemoral nerve, 1 thermal lesion of the left mesoureter (a ureteral stent was placed to avoid ureteric necrosis and fistula without after effect), and 1 lesion of the inferior vena cava that was sutured by robot-assisted laparoscopy. There were 2 additional cases of perforation of the peritoneum that occurred in the infrarenal group. The median hospital length of stay was 1 day (range, 0-7 days). Three patients were readmitted for symptomatic lymphocysts.

CONCLUSION

Extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy provides good visualization of the operative field without arm conflict. Still, perforation of the peritoneum and symptomatic lymphocysts are a postoperative concern.

Left Lateral Endosurgical Extraperitoneal Total Hysterectomy with Para-Aortic and Pelvic Lymphadenectomy: A Novel Approach for the Obese Patient with Endometrial Cancer

STUDY OBJECTIVE

To describe the left lateral extraperitoneal approach to perform complete para-aortic and pelvic lymphadenectomy and transverse total hysterectomy from left to right as a novel approach to treat obese patients with endometrial cancer. Laparoscopic management of obese patients represents a challenge for the gynecologic surgeon. The extraperitoneal approach is technically easier in the obese patient because it naturally creates a bowel-free operative field.

DESIGN

A prospective pilot bicentric and descriptive study (Canadian Task Force classification III) evaluating the feasibility and reproducibility of the transverse total hysterectomy and complete lymphadenectomy through left endoscopic extraperitoneal approach in obese patients with endometrial cancer.

SETTING

A comprehensive cancer center in Toulouse and a teaching university hospital in Madrid.

PATIENTS

Sixteen consecutive overweight or obese patients (body mass index > 25 kg/m²) with high-risk endometrial cancer.

INTERVENTIONS

Currently, the left extraperitoneal approach is routinely used to perform complete para-aortic and pelvic lymphadenectomy. It provides direct access to the left ureter and uterine pedicle. This access can be extended to the right side when performing a transverse extrafascial hysterectomy from left to right. The procedure starts from the left extraperitoneal space, where the left uterine artery is sectioned and the vesicovaginal and rectovaginal septa are developed, without opening the peritoneum. Colpotomy is performed from the left to the right side. Once the right ureter is identified, the right uterine artery can be safely transected. Alternatively, the right uterine artery can be sealed and sectioned during the right pelvic lymphadenectomy. At the end of the procedure the peritoneum is opened to complete the surgery.

MEASUREMENTS AND MAIN RESULTS

Between May 2015 and February 2016, 16 consecutive obese patients were successfully treated using this technique. Median patient age was 62 years (range, 44-78), and median body mass index was 32.5 kg/m² (range, 26-42). In 3 cases the right uterine artery was sealed during the right pelvic lymphadenectomy, in 11 cases after completing vaginal opening, and in 2 cases after peritoneal opening. The median operative time was 137.5 minutes (range, 66-260). The median blood loss was 85 mL (range, 0-260), and no blood transfusion was required in any of our 16 patients. No significant complications occurred.

CONCLUSION

The full extraperitoneal approach represents an interesting alternative strategy for the surgical treatment of obese patients with high-risk endometrial cancer.

Resection of Sentinel Lymph Nodes by an Extraperitoneal Minilaparoscopic Approach Using Indocyanine Green for Uterine Malignancies

Background. The sentinel lymph node (SLN) concept might minimize surgical aggressiveness in cervical and endometrial malignancies. The aim of the study was to test the feasibility and reliability of minilaparoscopic extraperitoneal SLN excision after indocyanine green (ICG) cervical injection using a high-definition near infrared (NIR) imaging system in an in vivo porcine model. The same procedure was performed using conventional laparoscopic instruments and both outcomes were compared. Methods. Twenty-four animals were equally and randomly divided into a minilaparoscopic group (group A) and a 5-mm conventional laparoscopic group (group B). A high-definition NIR imaging system and a 30° ICG endoscope were used. First, ICG (0.5 mL) was injected in the paracervical region. The SLN coloring time was recorded. An extraperitoneal approach to the SLN was executed with the same CO2 retropneumoperitoneum pressures (10 mm Hg). In both groups, the times for SLN localization and excision, as well as complications, were registered. Finally, a laparotomy was then done to evaluate whether any stained SLN still remained. The same surgical team performed all experiments. Results. SLNs were identified and extraperitoneally excised in all animals without major complications. The SLN localization varied between animals from external iliac to preaortic regions. The surgical times were shorter with minilaparoscopy (39.3 ± 13 minutes) than with conventional 5-mm instruments (51.3 ± 14.17 minutes; P = .042). In group B, one stained SLN remained and was only detected by laparotomy. Conclusions. We confirmed the feasibility and reliability of extraperitoneal minilaparoscopic approach for identification, dissection, and excision of SLN using an NIR imaging system and ICG.

[A propensity score evaluation of single-port or multiport extraperitoneal para-aortic lymphadenectomy and the transperitoneal approach for gynecological cancers]

INTRODUCTION

Endoscopic para-aortic lymphadenectomy (PALN) is a crucial step in the management of gynecological cancers. However, some concerns exist on the completeness of PALN according to the route (transperitoneal vs. extraperitoneal single-port or multiport). We compared these three surgical techniques using a propensity score.

METHODS

We retrospectively reviewed all patients undergoing an endoscopic PALN for a gynecological cancer from May 2010 to Mars 2015. Fifty-one patients had a single-port extraperitoneal PALN, 16 a multiport extraperitoneal PALN and 62 a transperitoneal PALN. Factors independently related to technique performances were tested on a multivariate model adjusted for a propensity score.

RESULTS

The number of lymph nodes removed by transperitoneal route was 15 and extraperitoneal route single and multiport was 12. After adjustment for the propensity score of undergoing the extraperitoneal approach, no difference in the number of lymph node removed was noted (P=0.17). There was more lymphocyst after transperitoneal (17%) and multiport extraperitoneal PALN (19%) than after extraperitoneal PALN (2%) (P=0.04). Success rate of single-port extraperitoneal PALN was 94% (n=48). Four patients required a conversion to an open route due to vascular injury.

DISCUSSION

Using a propensity score, single-port extraperitoneal route offers similar efficacy to perform PALN than transperitoneal or multiport extraperitoneal route but with less lymphocysts.

Laparoscopic technique of para-aortic lymph node dissection: A comparison of the different approaches to trans- versus extraperitoneal para-aortic lymphadenectomy

Since Dr Dargent first reported endoscopic surgery using retroperitoneal pelvicoscopy to perform pelvic lymph node sampling in 1987, many literature reviews on the safety and feasibility of laparoscopic staging surgery of gynecologic malignancies have been published. However, the procedure of laparoscopic lymphadenectomy is more difficult to perform due to the limited surgical space and associated technical problems. Especially in the para-aortic lymphadenectomy procedure, there are many barriers to overcome in the surgical field, learning curve, and technique. We present a review of lymphadenectomy, especially para-aortic lymphadenectomy.

Robotically assisted para-aortic lymphadenectomy: surgical results: a cohort study of 487 patients

OBJECTIVES

The aim of this study was to evaluate perioperative outcomes of robotic-assisted laparoscopic para-aortic lymphadenectomy (PAL) in patients with gynecologic cancers during the learning phases of robotic surgery programs and to compare results of extraperitoneal versus transperitoneal approaches of PAL.

MATERIALS AND METHODS

This study is a retrospective multicentric study of patients who underwent robotically assisted laparoscopic PAL (N = 487). Eleven European centers and 1 US center participated in the study. Abstracted data included age, body mass index, indication, type of surgical approach (transperitoneal or extraperitoneal), associated surgical procedures, operative time, estimated blood loss, lymph node count, hospital length of stay (LOS), and complications. Para-aortic lymphadenectomy was performed by an extraperitoneal approach in 58 cases (12%) and transperitoneal in 429 cases (88%).

RESULTS

The mean (SD) para-aortic lymph node count was 12.6 (8.1), operative time was 217 (85) minutes, estimated blood loss was 105 (110) mL, and LOS was 2.8 (3.2) days. Four (0.8%) conversions to open and 2 (0.4%) conversions to laparoscopy were described. There were 32 lymphocysts (6.6%), 3 deep venous thromboses (0.6%), and 10 transfusions (2.1%). For transperitoneal approach, the average number of lymph nodes removed was higher in isolated PAL group than the hysterectomy combined group (report node counts 95% confidence interval, -7.29 to -3.52, P = 1.5 × 10⁻⁶). For isolated PAL, the LOS was shorter in the extraperitoneal group than in the transperitoneal group (report data 95% CI, -1.35 to -0.35, P = 0.001).

CONCLUSIONS

Robotic-assisted PAL seems safe and feasible. More lymph nodes were removed during an isolated transperitoneal PAL dissection compared with a combined procedure with hysterectomy. Extraperitoneal approach seems attractive relative to transperitoneal dissection, but the superiority of one or the other way is not demonstrated by our study.

Cost-effectiveness of para-aortic lymphadenectomy before chemoradiotherapy in locally advanced cervical cancer

OBJECTIVE

To evaluate the cost-effectiveness of nodal staging surgery before chemoradiotherapy (CRT) for locally advanced cervical cancer in the era of positron emission tomography/computed tomography (PET/CT).

METHODS

A modified Markov model was constructed to evaluate the cost-effectiveness of para-aortic staging surgery before definite CRT when no uptake is recorded in the para-aortic lymph nodes (PALN) on PET/CT. Survival and complication rates were estimated based on the published literature. Cost data were obtained from the Korean Health Insurance Review and Assessment Service. Strategies were compared using an incremental cost-effectiveness ratio (ICER). Sensitivity analyses were performed, including estimates for the performance of PET/CT, postoperative complication rate, and varying survival rates according to the radiation field.

RESULTS

We compared two strategies: strategy 1, pelvic CRT for all patients; and strategy 2, nodal staging surgery followed by extended-field CRT when PALN metastasis was found and pelvic CRT otherwise. The ICER for strategy 2 compared to strategy 1 was $19,505 per quality-adjusted life year (QALY). Under deterministic sensitivity analyses, the model was relatively sensitive to survival reduction in patients who undergo pelvic CRT alone despite having occult PALN metastasis. A probabilistic sensitivity analysis demonstrated the robustness of the case results, with a 91% probability of cost-effectiveness at the willingness-to-pay thresholds of $60,000/QALY.

CONCLUSION

Nodal staging surgery before definite CRT may be cost-effective when PET/CT imaging shows no evidence of PALN metastasis. Prospective trials are warranted to transfer these results to guidelines.

Robotic Extraperitoneal Paraaortic Lymphadenectomy in Gynecological Cancers: Feasibility, Safety, and Short-Term Outcomes of Isolated and Combined Procedures

Objective

The aim of our study was to report the technique, the feasibility, and perioperative results of robotic extraperitoneal paraaortic lymphadenectomy in gynecological cancers performed for isolated or combined procedures.

Methods

This is a retrospective study of 24 consecutive patients undergoing robotic extraperitoneal paraaortic lymphadenectomy using the Da Vinci Surgical system (Intuitive Inc, Sunnyvale, CA) (cervical cancer, n = 15; high-risk endometrial cancer, n = 8; and ovarian cancer, n = 2, including 1 synchronous tumor). Extraperitoneal paraaortic lymphadenectomy was performed using the surgical technique previously described by laparoscopy.

Results

Of the 24 included patients, 12 patients had isolated robotic extraperitoneal paraaortic lymphadenectomy, whereas the others underwent the following associated procedures: total hysterectomy with bilateral salpingo-oophorectomy, pelvic lymphadenectomy, and omentectomy (n = 7); pelvic transperitoneal lymphadenectomy (n = 3), laparotomic Bricker procedure (n = 1), and colpectomy (n = 1). The median age of patients was 55 (42–64) years, and body mass index was 24.1 kg/m2 (20.9–26.1). The operation was completed in all patients except three with associated procedures. Perioperative difficulties were encountered in 9 patients (gas leakage, n = 7; adhesions, n = 2; and dissection difficulties, n = 1). The number of removed paraaortic lymph nodes was 18 (14–25). The operating times were 180 (150–210) minutes for isolated extraperitoneal paraaortic lymphadenectomy and 240 (180–300) minutes in case of associated procedures. There were 2 intraoperative (pneumothorax and renal artery injury) and 5 postoperative (3 grades 1–2 and 2 grade 3) complications.

Conclusions

If robotic-assisted extraperitoneal paraaortic lymphadenectomy seems feasible in case of isolated procedure, further studies are required to prove its benefit compared with conventional laparoscopy.

Single-port laparoscopic extraperitoneal para-aortic lymphadenectomy

OBJECTIVE

The aim of this study was to evaluate the feasibility and the safety of single-port extraperitoneal laparoscopic para-aortic lymphadenectomy for patients with gynecologic cancer.

METHODS

From July 2012 to January 2013, a total of 7 patients with gynecologic cancer underwent a laparoscopic pelvic and para-aortic lymphadenectomy with a single-port device. An extraperitoneal approach was performed for para-aortic lymphadenectomy using only one 2.5-cm incision on the left side. In 6 patients, additionally, hysterectomy and pelvic lymphadenectomy with conventional laparoscopy were performed to complete the treatment.

RESULTS

Aortic dissection was complete in all cases without complications. The median age of the patients was 63 years (range, 48-78 years), and the median patient body mass index was 31 kg/m(2) (range, 19-38 kg/m(2)). The median number of para-aortic nodes was 17 (range, 10-25); the median operative time was 204 minutes (range, 120-300 minutes). The median hospital stay was 4 days (range, 3-6 days). No patient encountered postoperative complications.

CONCLUSIONS

This study demonstrates the feasibility of single-port laparoscopic extraperitoneal para-aortic lymphadenectomy.

Pre-treatment surgical para-aortic lymph node assessment in locally advanced cervical cancer

BACKGROUND

This is an updated version of the original Cochrane review published in The Cochrane Library, Issue 4, 2011.Cervical cancer is the most common cause of death from gynaecological cancers worldwide. Locally advanced cervical cancer, FIGO stage (International Federation of Gynaecology and Obstetrics) equal or more than IB1 is treated with chemotherapy and external beam radiotherapy followed by brachytherapy. If there is metastatic para-aortic nodal disease, radiotherapy is extended to cover this area. Due to increased morbidity, ideally extended-field radiotherapy is given only when para-aortic nodal disease is confirmed. Therefore, accurate assessment of the extent of the disease is very important for planning the most appropriate treatment.

OBJECTIVES

To evaluate the effectiveness and safety of pre-treatment surgical para-aortic lymph node assessment for woman with locally advanced cervical cancer (FIGO stage IB2 to IVA).

SEARCH METHODS

We searched the Cochrane Gynaecological Cancer Group Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, 2012, Issue 10), MEDLINE and EMBASE (up to November 2012). We also searched registers of clinical trials, abstracts of scientific meetings, reference lists of included studies and contacted experts in the field.

SELECTION CRITERIA

Randomised controlled trials (RCTs) that compared surgical para-aortic lymph node assessment and dissection with radiological staging techniques, in adult women diagnosed with locally advanced cervical cancer.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed whether potentially relevant trials met the inclusion criteria, abstracted data and assessed risk of bias. One RCT was identified so no meta-analyses were performed.

MAIN RESULTS

We found only one trial, which included 61 women, that met our inclusion criteria. This trial reported data on surgical versus clinical staging and an assessment of the two surgical staging techniques; laparoscopic (LAP) versus extraperitoneal (EXP) surgical staging. The clinical staging was either a contrast-enhanced computed tomography (CT) scan or magnetic resonance imaging (MRI) scan of the abdomen and pelvis to determine nodal status.In this trial, clinical staging appeared to significantly prolong overall and progression-free survival compared to surgical staging. There was no statistically significant difference in the number of women who experienced severe (grade 3 or 4) toxicity.There was no statistically significant difference in the risk of death, disease recurrence or progression, blood loss, severe toxicity and the duration of the operational procedure between LAP and EXP surgical staging techniques.The strength of the evidence is weak in this review as it is based on one small trial that was at moderate risk of bias.

AUTHORS' CONCLUSIONS

Since the last version of this review no new studies were found.From the one available RCT we found insufficient evidence that pre-treatment surgical para-aortic lymph node assessment for locally advanced cervical cancer is beneficial, and it may actually have an adverse effect on survival. However, this conclusion is based on analysis of a small single trial and therefore definitive guidance or recommendations for clinical practice cannot be made.Therefore, the decision to offer surgical pre-treatment assessment of para-aortic lymph nodes in locally advanced cervical cancer needs to be individualised. The uncertainty regarding any impact on survival from pre-treatment para-aortic lymph node assessment should be discussed openly with the women.

Nodal-staging surgery for locally advanced cervical cancer in the era of PET

Chemoradiation therapy is deemed the standard treatment by many North American and European teams for treatment of locally advanced cervical cancer. The prevalence of para-aortic nodal metastasis in these tumours is 10-25%. PET (with or without CT) is the most accurate imaging modality to assess extrapelvic disease in such tumours. The true-positive rate of PET is high, suggesting that surgical staging is not necessary if uptake takes place in the para-aortic region. Nevertheless, false-negative results (in the para-aortic region) have been recorded in 12% of patients, rising to 22% in those with uptake during PET of the pelvic nodes. In such situations, laparoscopic surgical para-aortic staging still has an important role for detection of patients with occult para-aortic spread misdiagnosed on PET or PET-CT, allowing optimisation of treatment (extension of radiation therapy fields to include the para-aortic area). Complications of the laparoscopic procedure were noted in 0-7% of patients. Survival of individuals (missed by PET) with para-aortic nodal metastasis of 5 mm or less (and managed by extended field chemoradiation therapy) seems to be similar to survival of those without para-aortic spread, suggesting a positive therapeutic effect of the addition of staging surgery. Nevertheless, the effect on survival of potential delay of chemoradiation owing to use of PET and staging surgery, and acute and late complications of surgery followed by chemoradiation therapy (particularly in case of extended field chemoradiation to para-aortic area), need to be studied.

[Prevention of lymphoceles and gynaecologic cancers]

Lymphoceles are the most frequent complications following systematic lymphadenectomy in gynaecologic cancers. Some of them may have clinical significance with high morbidity. Through a review of literature, we describe surgical methods (way of surgery, lymphadenectomy type, sentinel lymph node, peritonization, drainages, lymphostasis, surgical patch) and medical methods (somatostatin analogs and nutrition treatment) which could prevent lymphoceles formation after pelvic and lumboaortic lymphadenectomy.

[Management of pregnant women with advanced cervical cancer: About five cases observed in Lille from 2002 till 2009. Evaluation of practices referring to the new French recommendations of 2008]

PURPOSE

An update on the management of invasive cervical cancer (from stage IB) diagnosed during pregnancy with reference to the recent French guidelines.

PATIENTS AND METHODS

We retrospectively analyzed patients for whom invasive cervical cancer was diagnosed during pregnancy and managed jointly by Jeanne-de-Flandres and Roubaix maternity and by Oscar-Lambret cancer center between 2002 and 2009.

RESULTS

Five patients were included: four stage IB1, and one stage IB2. Five pregnancies resulted in the birth of six alive children. Three patients received neoadjuvant chemotherapy during pregnancy. One patient had a laparoscopic pelvic lymphadenectomy in first trimester. Two laparoscopic extraperitoneal paraortic lymphadenectomy have been made. The mean time of survey is 47.5 months (12-94 months). One patient died of her cancer.

CONCLUSION

The diagnosis of cervical cancer during pregnancy involves the same therapeutic guidelines in the absence of pregnancy. The laparoscopic pelvic lymphadenectomy (up to 20 to 24 weeks of gestation) is crucial in the therapeutic treatment for tumors less than 4cm. Neoadjuvant chemotherapy is used during pregnancy for patients refusing medical termination of pregnancy.

Feasibility of laparoscopic extraperitoneal pelvic lymphadenectomy in gynecologic malignancies

OBJECTIVE

The aim of this study is to evaluate the feasibility of laparoscopic extraperitoneal pelvic lymphadenectomy (LEPL) in gynecologic malignancies.

METHODS

Twenty-nine women with cervical, ovarian or endometrial cancer underwent laparoscopic extraperitoneal pelvic lymphadenectomy between July 2008 and December 2010. The operating time, nodal yield, blood loss and complications were recorded.

RESULTS

The number of patients with cervical, ovarian and endometrial carcinoma was 14, 3 and 12, respectively. The median age of patients was 48.9±12.6 years. The median body mass index was 25.6±4.8. Conversion to the transperitoneal laparoscopic approach was necessary in 6 patients for peritoneal tears causing CO(2) gas leakage. Among the remaining 23 patients, the median operating time for laparoscopic extraperitoneal pelvic lymphadenectomy was 69 min (range 50-126 min), and the median estimated blood loss was 20 ml (range 5-105 ml). The median total number of resected nodes was 26 (range 14-42), and complications related to the procedure were rare.

CONCLUSIONS

Laparoscopic extraperitoneal pelvic lymphadenectomy is a feasible and safe procedure. It can be used in gynecologic malignancies.

Pre-treatment surgical para-aortic lymph node assessment in locally advanced cervical cancer

BACKGROUND

Cervical cancer is the most common cause of death from gynaecological cancers worldwide. Locally advanced cervical cancer, FIGO stage equal or more than IB1 is treated with chemotherapy and external beam radiotherapy followed by brachytherapy. If there is metastatic para-aortic nodal disease radiotherapy is extended to additionally cover this area. Due to increased morbidity, ideally extended-field radiotherapy is given only when para-aortic nodal disease is proven. Therefore accurate assessment of the extent of the disease is very important for planning the most appropriate treatment.

OBJECTIVES

To evaluate the effectiveness and safety of pre- treatment surgical para-aortic lymph node assessment for woman with locally advanced cervical cancer (FIGO stage IB2 to IVA).

SEARCH STRATEGY

We searched the Cochrane Gynaecological Cancer Group Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2011, Issue 1), MEDLINE and EMBASE (up to January 2011). We also searched registers of clinical trials, abstracts of scientific meetings, reference lists of included studies and contacted experts in the field.

SELECTION CRITERIA

Randomised controlled trials (RCTs) that compared surgical para-aortic lymph node assessment and dissection with radiological staging techniques, in adult women diagnosed with locally advanced cervical cancer.

DATA COLLECTION AND ANALYSIS

Two reviewers independently assessed whether potentially relevant trials met the inclusion criteria, abstracted data and assessed risk of bias. One RCT was identified so no meta-analyses were performed.

MAIN RESULTS

We found only one trial, which included 61 women, that met our inclusion criteria. This trial reported data on surgical versus clinical staging and an assessment of the two surgical staging techniques; laparoscopic (LAP) versus extraperitoneal (EXP) surgical staging. The clinical staging was either a contrast-enhanced CT scan or MRI scan of the abdomen and pelvis to determine nodal status.In this trial, clinical staging appeared to significantly prolong overall and progression-free survival compared to surgical staging. There was no statistically significant difference in the number of women who experienced severe (grade 3 or 4) toxicity.There was no statistically significant difference in the risk of death, disease recurrence or progression, blood loss, severe toxicity and the duration of the operational procedure between LAP and EXP surgical staging techniques.The strength of the evidence is weak in this review as it is based on one small trial which was at moderate risk of bias.

AUTHORS' CONCLUSIONS

From the one available RCT we found insufficient evidence that pre-treatment surgical para-aortic lymph node assessment for locally advanced cervical cancer is beneficial, and it may actually have an adverse effect on survival. However this conclusion is based on analysis of a small single trial and therefore definitive guidance or recommendations for clinical practice cannot be made.Therefore the decision to offer surgical pre-treatment assessment of para-aortic lymph nodes in locally advanced cervical cancer needs to be individualised. The uncertainty regarding any impact on survival from pre-treatment para-aortic lymph node assessment should be discussed openly with the women.

Accuracy of 18-fluoro-2-deoxy-D-glucose positron emission tomography in the pretherapeutic detection of occult para-aortic node involvement in patients with a locally advanced cervical carcinoma

PURPOSE

Patients with locally advanced cervical cancer (LACC) are usually treated with concurrent chemoradiotherapy. Extended-field chemoradiotherapy is indicated in case of para-aortic node involvement at initial assessment. 18-Fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (18-FDG PET/CT) is currently considered to be the most accurate method of detection of node or distant metastases. The goal of this study was to evaluate the accuracy of PET at detecting para-aortic lymph node metastases in LACC patients with a negative morphological imaging.

METHODS

Patients from five French institutions with LACC and both negative morphologic (magnetic resonance imaging, CT scan) and functional (PET or PET/CT) findings at the para-aortic level and distantly were submitted to a systematic infrarenal para-aortic node dissection either by laparoscopy or laparotomy. On the basis of pathological results, sensitivity, specificity, and positive and negative predictive values of PET/CT were assessed for para-aortic lymph node involvement.

RESULTS

A total of 125 LACC patients (stage IB2-IVA disease with two local recurrences) fulfilled the inclusion criteria. All had an ilio-infrarenal para-aortic lymphadenectomy, either by laparoscopy (n = 117) or laparotomy (n = 8). Twenty-one patients (16.8%) had pathologically proven para-aortic metastases. Among them, 14 (66.7%) had negative PET/CT. Overall morbidity of surgery was 7.2%. All but one of the complications were mild and did not delay chemoradiotherapy. Sensitivity, specificity, and positive and negative predictive value of the PET/CT were 33.3, 94.2, 53.8, and 87.5%, respectively, for the detection of microscopic lymph node metastases.

CONCLUSIONS

Laparoscopic staging surgery seems warranted in LACC patients with negative PET scan who are candidates for definitive concurrent chemoradiotherapy or exenteration.

Retroperitoneoscopic para-aortic lymph node sampling in bladder rhabdomyosarcoma

Determining lymph node involvement is an important step in the pre-treatment evaluation of non-metastatic rhabdomyosarcoma. We describe retroperitoneoscopy for para-aortic lymph node biopsy in a 4-year-old boy with embryonal rhabdomyosarcoma of the bladder with pelvic and para-aortic lymph node enlargement on magnetic resonance imaging. This technique affords access to the para-aortic region with minimal dissection, permitting quick recovery and early commencement of chemotherapy.

Lymph node assessment in cervical cancer: prognostic and therapeutic implications

Lymph node status is not part of the staging system for cervical cancer, but provides important information for prognosis and treatment. This article reviews the incidence and patterns of lymph node metastasis, and the issues surrounding surgical assessment of lymph nodes. The preoperative assessment of lymph nodes by imaging, as well as the intraoperative assessment by sentinel nodes will be discussed. Finally, the prognostic and therapeutic implications of lymphadenectomy in cervical cancer will be reviewed.

Extra-peritoneal laparoscopic para-aortic lymphadenectomy--a prospective cohort study of 293 patients with endometrial cancer

OBJECTIVE

To determine if extra-peritoneal laparoscopic para-aortic (PA) lymphadenectomy allows a reliable assessment of PA nodes in patients with endometrial cancer (EC).

METHODS

In October of 2005, a single surgeon began performing extra-peritoneal laparoscopic PA lymphadenectomy for patients with EC. A prospective cohort study was initiated from October 2005 through October 2007. Staging of Group A included extra-peritoneal laparoscopic PA lymphadenectomy, while Group B underwent staging via laparotomy.

RESULTS

In a 24 month period, 293 patients underwent surgical treatment for EC, 203 of them underwent complete staging as determined by previously published criteria. Extra-peritoneal laparoscopic PA lymphadenectomy to the renal veins was successful in 35/38 patients (92%). Mean BMI was 33.0 for Group A and 32.3 for Group B (p=NS). Mean EBL and hospital stay were lower in Group A compared to Group B (163 vs 373 cm(3), p<0.0001; median 2 vs 4 nights, p<0.001). The total number of PA nodes harvested was not statistically different between Groups A and B (16.5 vs 19.6). Interestingly, in Group A the total number of PA nodes was greater for patients with BMI>35, (21.6 vs 13.1), while in Group B fewer nodes were removed in obese patients (17.8 vs 20.5).

CONCLUSIONS

Extra-peritoneal laparoscopy is a reliable method to routinely reach the level of the renal veins, even in obese patients. This approach was feasible in over 90% of unselected patients and well-tolerated.

Current issues in the management of endometrial cancer

Endometrial cancer (EC) remains the most common gynecologic malignancy in the United States. It is expected to become more common as the prevalence of obesity, one of the most common risk factors for EC, increases worldwide. The 2 main histologic subcategories of EC, endometrioid and nonendometrioid EC, show unique molecular aberrations and are responsible for markedly disparate clinical behaviors. The primary treatment of EC is surgery, ie, hysterectomy, removal of the adnexa, and pelvic and para-aortic lymphadenectomy, either via laparotomy or endoscopic techniques. Adjuvant therapy is necessary for patients at high risk of recurrence and consists of vaginal brachytherapy, teletherapy, systemic chemotherapy, or some combination thereof. Multi-institutional trials are in progress in this country and in Europe to better define optimal adjuvant treatment for subsets of patients, as well as the role of surgical staging in reducing both overuse and underuse of radiation therapy. Hormonal therapy is an option for some young women with EC who wish to preserve fertility. This review summarizes the diagnosis and management of EC and discusses current controversies and upcoming investigations pertaining to EC staging and adjuvant treatment.

Lymphadénectomie lombo-aortique cœlioscopique par voie extrapéritonéale gauche: morbidité et apprentissage de la technique

OBJECTIVE

Description of the morbidity and the learning curve of the left extraperitoneal laparoscopic paraaortic lymphadenectomy in patients with gynecologic cancers.

PATIENTS AND METHODS

Retrospective study of patients treated with the left extraperitoneal laparoscopic paraaortic lymphadenectomy between August 1999 and January 2005. Duration of surgery, per and post-operative complications, duration of the hospital stay, number of retrieved nodes, and pathologic results were studied. A comparative analysis of the results was performed between trained and training surgeons.

RESULTS

Eighty-one patients were planned for the left extraperitoneal laparoscopic paraaortic lymphadenectomy. The major indication (90% of cases) was advanced cervical carcinomas (stage IB2 and more). The median number of retrieved nodes was 14, with a mean operative time of 109 minutes. The median hospital stay was 3 days. Two major complications related to the surgical technique were observed: a laceration of the inferior vena cava and an acute abdominal syndrome. Seven lymphocysts (8.6%) were observed (with associated symptoms in 2 cases). Trained surgeons to the technique displayed higher success rate of this surgical technique and higher number of retrieved lymph nodes.

DISCUSSION AND CONCLUSIONS

The left extraperitoneal laparoscopic paraaortic lymphadenectomy allows the accurate staging and management of patients with gynecologic cancers and mainly women affected by advanced cervical carcinoma. The surgical technique is safe and reproducible when performed by trained surgeons.