Laparoscopic Surgery For Endometrial Cancer Research Articles

Robotic-assisted versus conventional laparoscopic surgery for endometrial cancer: long-term results of a randomized controlled trial

BackgroundRobotic-assisted laparoscopic surgery (RALS) has become a widely and increasingly used modality of minimally invasive surgery in the treatment of endometrial cancer (EC). Due to its technical advantages, RALS offers benefits, such as a lower rate of conversions compared to conventional laparoscopy (CLS). Yet, data on long-term oncological outcomes after RALS is scarce and based on retrospective cohort studies only. ObjectivesThis study aimed to assess overall survival (OS), progression-free survival (PFS), and long-term surgical complications in EC patients randomly assigned to RALS or CLS. Study DesignThis randomized controlled trial was conducted at the Department of Gynecology and Obstetrics of Tampere University Hospital, Finland. Between 2010 and 2013, 101 patients with low-grade EC scheduled for minimally invasive surgery were randomized preoperatively 1:1 either to RALS or CLS. All patients underwent laparoscopic hysterectomy, bilateral salpingo-oophorectomy, and pelvic lymphadenectomy. A total of 97 patients (49 in the RALS group and 48 in the CLS group) were followed up for a minimum of 10 years. Survival was analyzed using Kaplan-Meier curves, log-rank test, and Cox proportional hazard models. Binary logistic regression analysis was used to analyze risk factors for trocar site hernia. ResultsIn the multivariable regression analysis, OS was favorable in the RALS group (HR 0.39; 95% CI, 0.15–0.99, p=.047) compared to the CLS group. There was no difference in PFS (log-rank test, p=.598). The three-, 5- and 10-year OS were 98.0% (95% CI, 94.0–100) vs. 97.9% (93.8–100), 91.8% (84.2–99.4) vs. 93.7% (86.8–100), and 75.5% (64.5–87.5) vs. 85.4% (75.4–95.4) in the CLS and the RALS group, respectively. Trocar site hernia developed more often in the RALS group compared to the CLS group 18.2% vs. 4.1% (OR 5.42, 95% CI, 1.11–26.59, p=.028). The incidence of lymphocele, lymphedema, or other long-term complications did not differ between the groups. ConclusionsThe results of this RCT suggest a minor OS benefit in EC after RALS compared to CLS. Hence, the use of RALS in the treatment of EC seems safe, but larger RCTs are needed to confirm the potential survival benefit of RALS. No alarming safety signals were detected in the RALS group since the rate of long-term complications differed only in the incidence of trocar site hernia.

Laparoscopic surgery for endometrial cancer is oncologically safe and improves hospital stay duration: a retrospective single-center study over a 16-year period

ObjectiveTo investigate changes in surgical procedures and patient outcomes of patients diagnosed with endometrial cancer (EC) at a German university hospital between 1998 and 2014.MethodsA monocentric, retrospective review was conducted to identify patients diagnosed and treated with EC during the aforementioned period at the Department of Gynecology and Obstetrics at the University Hospital Kiel, Germany.Results303 patients were identified. Patient demographics, risk factors, histological subtypes and stages of EC remained consistent over time. The most common surgical procedure was total abdominal hysterectomy (TAH) (81.9%). In 2011, the institution carried out its first total laparoscopic hysterectomy (TLH) for EC, resulting in a significant increase in laparoscopic surgical procedures (2011–2014: N = 70; TAH 44.2%; TLH 51.4%). Although the total number of lymph node stagings remained consistent over time, there was a significant increase in the performance of simultaneous pelvic and para-aortic lymphonodectomy (LNE) compared to pelvic LNE alone (2.6 in 2001–2005 vs. 18.0% in 2011–2014, p ≤ 0.001). The duration of hospital stays significantly decreased over time, with a mean of 20.9 days in the first and 8.5 days in the last period. When comparing surgical procedures, TLHs resulted in significantly shorter postoperative stays with an average of 6.58 vs. 13.92 days for TAH. The surgical procedure performed did not affect 5-year overall survival rates in this study (84.9% for TAH and 85.3% for TLH, p = 0.85).ConclusionsOur retrospective single-center study demonstrates that laparoscopic surgery for endometrial cancer is oncologically safe and shortens hospital stays.

Is robotic surgery beneficial for the treatment of endometrial cancer? A comparison with conventional laparoscopic surgery.

Objective: The objective of this study was to compare the oncologic outcomes between those who underwent robotic surgery or conventional laparoscopic surgery for endometrial cancer. Method: We performed a retrospective review of patients from a single institution who underwent either laparoscopic or robotic surgery for the treatment of endometrial cancer between January 2010 and December 2020. Tumor characteristics, recurrence rate, disease-free survival, and overall survival were compared according to surgical approach. Results: Among the 268 patients included in this study, 95 underwent robotic surgery (35.4%) and 173 underwent laparoscopic surgery (64.6%). The median follow-up durations were 51 and 59 months for the robotic surgery and laparoscopic surgery groups, respectively (p = 0.085). The recurrence rate did not differ significantly between the two groups. (p = 0.371). Disease-free survival (p = 0.721) and overall survival (p = 0.453) were similar between the two groups. In both univariate and multivariate analyses, the type of surgery was not related to disease-free survival. The median total cost per admission was significantly higher for RS than for LS (12,123 vs. 6,884 USD, p < 0.0001). Conclusion: With consistently greater costs and similar survival outcomes, robotic systems have few advantages compared with laparoscopy.

Multidirectional Traction Method Using SURGICEL NU-KNIT and Surgical Suture in Robot-assisted Laparoscopic Surgery for Endometrial Cancer

To describe a novel approach to robot-assisted laparoscopic total hysterectomy (RH) for endometrial cancer that minimizes cancer sell spillage and develops a stable surgical field. Demonstration of the multidirectional traction method with narrated video footage. Many reports have indicated that RH for endometrial cancer has the same or superior short-term results compared with conventional laparoscopic hysterectomy (LH), and the long-term prognosis is the same [1,2]. However, there are no randomized controlled trials of RH versus LH, and some previous reports [3] have suggested that RH has a worse prognosis than LH, so the long-term prognosis should be considered with caution. Factors that may affect the long-term prognosis include the use of uterine manipulators [4] and compression of the uterine body with robotic forceps without tactile sensation [3]. However, to the best of our knowledge, no surgical technique capable of avoiding these factors has been established yet. Herein, we report a multidirectional traction method using SURGICEL NU-KNIT (Ethicon; Johnson & Johnson Medical Ltd., Tokyo, Japan), a local hemostatic agent, and surgical sutures. Cut 2-0 Prolene (Ethicon; Johnson & Johnson Medical Ltd., Tokyo, Japan) with straight needles (ST-70) thread to 35 cm, stick a 1×2 cm piece of SURGICEL NU-KNIT, and make knots Fig. 1. This implement is used to puncture the incisional margins of the peritoneum and then the abdominal wall to bring the thread to the surface of the body, where it is grasped with forceps and fixed. By repeating this operation, multidirectional traction can be obtained Fig. 2. A manipulating suture is also attached to the uterus to minimize the compression of the uterine body with robotic forceps. The multidirectional traction method allows for reproducible stable surgical field development and minimizes cancer cell spillage by reducing uterine grasping by robotic forceps without the use of uterine manipulators.

Efficacy of transumbilical laparoendoscopic single-site surgery versus multi-port laparoscopic surgery for endometrial cancer: a retrospective comparison study.

Although single-port laparoscopy surgery has been evaluated for several years, it has not been widely adopted by gynecologic oncologists. The objective was to compare the perioperative outcomes and survival of endometrial cancer (EC) patients undergoing transumbilical laparoendoscopic single-site surgery (TU-LESS) with multi-port laparoscopic surgery (MLS). This is a retrospective comparative monocentric study including patients treated between December 2017 and October 2021. The perioperative outcomes and survival of EC patients who had surgery via TU-LESS or MLS were compared, by propensity matching. A total of 156 patients were included (TU-LESS vs. MLS: 78 vs. 78). The conversion rate of TU-LESS and MLS was 5.13% and 2.56%, respectively (P=0.681). The operation time was comparable between the two groups [207.5min (180-251) vs. 197.5min (168.8-225), P=0.095]. There was no significant difference between the two groups in exhaustion time, perioperative complications, or postoperative complications. While, the TU-LESS group had a shorter out-of-bed activity time [36 hours (24-48) vs. 48 hours (48-72), P<0.001] and a lower visual analog pain scale 36 hours after surgery [1 (1-2) vs. 2 (1-2), P<0.001] than the MLS group. The length of hospital stay was similar in the two groups [5(4-6) vs. 5(4-5), P=0.599]. Following surgery, 38.5% of the TU-LESS patients and 41% of the MLS patients got adjuvant therapy (P=0.744). The median follow-up time for TU-LESS and MLS cohorts was 45 months (range: 20-66) and 43 months (range: 18-66), respectively. One TU-LESS patient and one MLS patient died following recurrence. The 4-year overall survival was similar in both groups (98.3% vs. 98.5%, P=0.875). TU-LESS is a feasible and safe option with comparable perioperative outcomes and survival of MLS in endometrial cancer. With the growing acceptance of sentinel lymph node biopsy, TU-LESS of endometrial cancer may be a viable option for patients and surgeons.

Robot-assisted versus conventional laparoscopic surgery for endometrial cancer: long-term comparison of outcomes.

There is a lack of multi-institutional large-volume and long-term follow-up data on comparisons between robot-assisted surgery and conventional laparoscopic surgery. This study compared the surgical and long-term survival outcomes between patients who underwent robot-assisted or conventional laparoscopic surgery for endometrial cancer. We retrospectively reviewed the data of patients from five large academic institutions who underwent either robot-assisted or conventional laparoscopic surgery for the treatment of endometrial cancer between 2012 and 2017, ensuring at least 5 years of potential follow-up. Intra- and postoperative outcomes, long-term disease-free survival, and overall survival were compared. The study cohort included 1,003 unselected patients: 551 and 452 patients received conventional laparoscopic and robot-assisted surgery, respectively. The median follow-up duration was 57 months. Postoperative complications were significantly less likely to occur in the robot-assisted surgery group compared to the laparoscopic surgery group (7.74% vs. 13.79%, P = 0.002), primarily limited to minor complications. There were no significant differences in survival: 5-year disease-free survival was 91.2% versus 90.0% (P = 0.628) and overall survival was 97.9% versus 96.8% (P = 0.285) in the robot-assisted and laparoscopic surgery cohorts, respectively. Cox proportional hazard regression models demonstrated that the mode of surgery was not associated with disease-free survival (hazard ratio, 0.897; confidence interval, 0.563-1.429) or overall survival (hazard ratio, 0.791; confidence interval, 0.330-1.895) after adjusting for confounding factors. Robot-assisted surgery for endometrial cancer demonstrates comparable long-term survival outcomes and a reduced incidence of postoperative minor complications when compared to conventional laparoscopic surgery.

Radiotherapy of an Isolated Port-Site Metastases after Laparoscopic Surgery for Endometrial Cancer: A Case Report

Port-site metastases after gynecologic oncology procedures have a reported incidence of 1-2% and in the 95% of cases had simultaneous carcinomatosis or metastases to other sites at the time of port-site metastasis detection suggesting that the presence of port site implantation is a surrogate for advanced disease. At the moment, only poor cases of isolated port-site metastasis after endometrial cancer have been reported in literature, we reported one of this cases

Transperitoneal vs extraperitoneal approach for aortic sentinel node detection in endometrial cancer

Although the sentinel lymph node technique in endometrial cancer is currently replacing pelvic and aortic lymphadenectomy for the evaluation of lymph node status in endometrial cancer, its performance is not yet standardized. This study aimed to describe the detection rates and locations of aortic sentinel lymph node detection after dual cervical and fundal indocyanine green injection in patients with endometrial cancer, using the transperitoneal and extraperitoneal approaches. Between June 26, 2014 and December 31, 2019, 278 patients underwent laparoscopic surgery for endometrial cancer at our institution. In all cases, we performed sentinel lymph node biopsy with dual cervical and fundal indocyanine green injection, and back-up lymphadenectomy in high-risk cases. A post hoc analysis was performed to evaluate differences between the transperitoneal and extraperitoneal approach to aortic sentinel lymph nodes. The detection rates were as follows: overall detection rate: 93.2% (259/278); pelvic detection rate: 90.3% (251/278); bilateral pelvic detection rate: 68.0% (189/278); aortic detection rate: 66.9% (186/278); and isolated aortic detection rate: 2.88% (8/278). Transperitoneal and extraperitoneal aortic detection rates were similar (65.0% and 69.6%, respectively), with no significant differences (P=.441). Isolated aortic metastases were similar in both groups (2% vs 4.7%, respectively; P=.185). The laterality of aortic sentinel lymph node detection was influenced by the surgical approach (P=.002), but not its location above or below the inferior mesenteric artery (P=.166 and P=.556, respectively). The detection rates at the aortic level were similar between the transperitoneal and extraperitoneal approaches, with no impact on subsequent pelvic detection. The transperitoneal approach detected more laterocaval, precaval, and interaortocaval nodes, whereas the extraperitoneal approach detected more preaortic and left lateroaortic nodes.

Perioperative Recovery and Narcotic Use in Laparoscopic versus Robotic Surgery for Endometrial Cancer

To compare intraoperative and perioperative narcotic use, recovery room time, and total hospital stay for patients treated with robotic vs laparoscopic surgery for endometrial cancer. Retrospective cohort. Teaching hospital. All patients having minimally invasive surgery in the division of gynecologic oncology during a 20-month period. Laparoscopic cases were compared with robot-assisted cases with respect to perioperative outcome. Hospital billing records were used to identify all patients with endometrial cancer treated from January 1, 2018 through July 31, 2019 undergoing either laparoscopic or robotic surgery. Data were collected including total narcotic use converted to intravenous morphine milligram equivalent (MME), total amount of time in recovery, and length of hospital stay. A total of 139 laparoscopic and 101 robotic surgeries were eligible for analysis. There was no difference between the groups with respect to blood loss, alcohol use, or smoking. Patients undergoing laparoscopy had a significantly lower body mass index compared with patients undergoing robotic surgery (32.9 vs 38.0 kg/m2; p <.001). Univariate analysis showed no difference between the 2 groups with respect to narcotic use in surgery (21.7 vs 21.1 MME; p=.64), recovery (4.3 vs 4.5 MME; p=.70), or total dose (26.0 vs 25.6 MME; p=.78). However, patients who underwent a robotic approach had a longer recovery room time (128 minutes vs 163 minutes; p <.001 and a longer surgical time (288 minutes vs 204 minutes; p=.001). Patients in the robotic group were also more likely to undergo full lymphadenectomy than patients in the laparoscopy group (38.0% vs 20.8% p <.001). In a multivariate analysis, the only significant factors for predicting total narcotic dose were age, use of a preoperative enhanced recovery after surgery program, and surgical time. Patients who had laparoscopy were more likely to achieve same-day discharge (39.3% vs 17.8%; p<.001), but in the multivariate analysis, the type of surgery did not predict same-day discharge. There was no difference in narcotic use in the perioperative period with robotic surgery compared with laparoscopy. Recovery time was longer for robotic surgery, but this was not significant in multivariate analysis. Same-day discharges were less frequent with robotics, which may be more related to the physician's choice rather than the procedure.

Maximizing sentinel node detection in endometrial cancer with dual cervical and transcervical fundal indocyanine green injection: 5-year single-center prospective study

ObjectiveThe aim of this study was to describe our latest results using dual cervical and fundal indocyanine green injection for detection of sentinel lymph node (SLN) in endometrial cancer. MethodsA prospective observational study was conducted between 26 June 2014 and 31 December 2019 with 278 patients that underwent laparoscopic surgery for endometrial cancer at our institution. In all cases, we performed SLN biopsy with dual cervical and fundal indocyanine green injection. All SLNs were processed with an ultrastaging technique. A total of 128 patients also underwent total pelvic and paraaortic lymphadenectomy. ResultsThe detection rates were as follows: 93.5 % (260/278) overall for SLNs; 90.7 % (252/278) overall for pelvic SLNs; 68.0 % (189/278) for bilateral SLNs; 66.9 % (186/278) for paraaortic SLNs, and 2.9 % (8/278) for isolated paraaortic SLNs. We found macroscopic lymph node metastasis in 26 patients (10.0 %) and microdisease in lymph nodes in another 48 patients, raising the overall rate of lymph node involvement to 16.2 %. There was one false negative (negative SLN biopsy but positive lymphadenectomy). Applying the SLN algorithm, the sensitivity of detection was 97.9 % (95 % CI 89.1–99.6), specificity 100 % (95 % CI 98.2–100), negative predictive value 99.5 % (95 % CI 97.4–99.9), and positive predictive value 100 % (95 % CI 92.4–100). ConclusionsDual sentinel node injection is a feasible technique that achieves adequate detection rates. Additionally, this technique allows a high rate of aortic detection, identifying a non-negligible percentage of isolated aortic metastases. Aortic metastases in endometrial cancer are possible and we should not give up actively looking for them.

Laparo-endoscopic single-site surgery vs conventional laparoscopic surgery for endometrial cancer: A systematic review and meta-analysis.

Objective:To systematically review and evaluate the safety, advantages and clinical application value of laparo-endoscopic single-site surgery (LESS) for endometrial cancer by comparing it with conventional laparoscopic surgery (CLS).Methods:We conducted a systematic review of the published literature comparing LESS with CLS in the treatment of endometrial cancer. English databases including PubMed, Embase, Ovid, and the Cochrane Library and Chinese databases including Chinese National Knowledge Infrastructure, Wanfang and China Biology Medicine were searched for eligible observational studies up to July 10, 2019. We then evaluated the quality of the selected comparative studies before performing a meta-analysis using the RevMan 5.3 software. The complications, surgical time, blood loss during surgery, postoperative length of hospital stay and number of lymph nodes removed during surgery were compared between the 2 surgical approaches.Results:Four studies with 234 patients were finally included in this meta-analysis. We found that there was no statistically significant difference in complications between the 2 surgical approaches [odds ratio (OR): 0.63, 95% confidence interval (CI): 0.18–2.21, P = .47, I 2 = 0%]. There was no statistically significant difference in blood loss between the 2 surgical approaches [mean difference (MD): –61.81, 95% CI: –130.87 to –7.25, P = .08, I 2 = 74%]. There was no statistically significant difference in surgical time between the 2 surgical approaches (MD: –11.51, 95% CI: –40.19 to 17.16, P = .43, I 2 = 81%). There was also no statistically significant difference in postoperative length of hospital stay between the 2 surgical approaches (MD: –0.56, 95% CI: –1.25 to –0.13, P = .11, I 2 = 72%). Both pelvic and paraaortic lymph nodes can be removed with either of the 2 procedures. There were no statistically significant differences in the number of paraaortic lymph nodes and total lymph nodes removed during surgery between the 2 surgical approaches [(MD: –0.11, 95% CI: –3.12 to 2.91, P = .29, I 2 = 11%) and (MD: –0.53, 95% CI (–3.22 to 2.16), P = .70, I 2 = 83%)]. However, patients treated with LESS had more pelvic lymph nodes removed during surgery than those treated with CLS (MD: 3.33, 95% CI: 1.05–5.62, P = .004, I 2 = 32%).Conclusion:Compared with CLS, LESS did not reduce the incidence of complications or shorten postoperative hospital stay. Nor did it increase surgical time or the amount of bleeding during surgery. LESS can remove lymph nodes and ease postoperative pain in the same way as CLS. However, LESS improves cosmesis by leaving a single small scar.

Remifentanil injected during analepsia shortens length of postanesthesia care unit stay in patients undergoing laparoscopic surgery for endometrial cancer: a randomized controlled trial.

To guarantee efficient operating room (OR) activity, tracheal extubation is often performed in the postanesthesia care unit (PACU). Therefore, the ability of PACU to accommodate postoperative patients is crucial. Optimizing extubation management may speed up the turnover of PACU beds. The aim of the present study was to investigate the effect of remifentanil, which is used during analepsia, on the length of PACU stay in patients undergoing laparoscopic surgery for endometrial cancer. In this prospective trial, we recruited a total of 99 patients, who were scheduled for laparoscopic surgery for endometrial cancer. At the end of the surgery, all patients were immediately transferred to the PACU and continued mechanical ventilation. Upon PACU admission, sputum aspiration was routinely performed. If the hemodynamic parameters fluctuated >30% of the baseline level, or patients moved unconsciously without reaching the criteria of extubation, a bolus injection of either 1 μg/kg remifentanil (Rem group, n=51) or propofol 1.0 mg/kg (Pro group, n=48) was randomly administered. The primary outcome was the duration of PACU stay. The secondary outcomes included time to respiratory breath recovery and time to extubation, along with bispectral index (BIS) values and hemodynamic status after remifentanil or propofol intervention. Times of repeated intervention, rescue administration of vasoactive drugs, and the incidence of adverse events were recorded. Visual analog scale and satisfaction scores at the time of PACU discharge were also evaluated. The duration of PACU stay was shorter in the Rem group than in the Pro group [49 (46.47-51.06 minutes) vs. 62 minutes (60.75-69.29 minutes), P<0.0001]. Compared with the Pro group, the time to spontaneous breathing recovery, the time to extubation, and the incidence of hypoxemia after extubation were reduced in the Rem group (P<0.0001, P<0.0001, P=0.03, respectively). After anesthetic administration, the BIS value decreased less in the Rem group (P<0.0001); blood pressure and heart rate (HR) declined, but were comparable in both groups. Remifentanil, which is injected during analepsia, significantly shortens the duration of PACU stay without increasing adverse events in the peri-extubation period.

Two-port access for laparoscopic surgery for endometrial cancer using conventional laparoscopic instruments

Minimally invasive surgery is the first-line management for endometrial cancer. The role of 2-port access laparoscopy (TPA) has been underestimated. Compared to conventional laparoscopic surgery (CL), TPA is associated with smaller total incision size and less postoperative pain. Compared to single-incision laparoscopic surgery, no specific instruments and surgical techniques are needed. This study primarily evaluated the surgical and pathologic outcomes of TPA with conventional instruments, and additionally evaluated the surgeon’s learning curve. Consecutive patients who underwent TPA and CL for endometrial cancer between 2015 and 2019 were included. Baseline characteristics were recorded. In total, 148 patients (TPA, 89; CL, 59) were identified. The baseline characteristics were similar, except for a greater proportion of patients in the CL group receiving para-aortic lymph node dissection (5.62% vs. 35.59%, P < 0.01). The mean operation time was significantly less in the TPA group (152.09 vs. 187.15 min; P < 0.01). Both the groups had comparable 5-year progression-free survival (TPA, 86.68%) and 5-year overall survival rates (TPA, 93.24%). Analysis of the learning curve showed that the operation time decreased after 3–4 procedures. TPA using conventional laparoscopic instruments for endometrial cancer is feasible and is easily accessible to patients and surgeons.

Obesity as a risk factor of in-hospital outcomes in patients with endometrial cancer treated with laparoscopic surgical mode

Obesity has been suggested to have a negative influence on procedural outcomes of endometrial cancer laparoscopic treatment. Obesity and other possible risk factors of laparoscopic endometrial cancer treatment has not been precisely described in the literature. The aim of the study is to determine the factors that have the greatest influence on the course of laparoscopic surgery for endometrial cancer, with particular emphasis on the influence of obesity. The study included 75 females who were treated for endometrial cancer by laparoscopic surgery. Preoperative body-mass index (BMI), waist circumference(WC), waist to hip ratio(WHR), and selected anatomical indices were measured. The duration of surgery and hospitalization stay, loss of hemoglobin, and procedural-related complications served as parameters of in-hospital outcomes. Multiple linear regression analysis indicate the body mass as most sensitive parameter of obesity which influence in-hospital outcomes in patients treated with laparoscopic procedure. Procedural-related complications occurred in the group of patients with significantly greater WC and BMI. Multiple linear regression indicates also histological grading (G1-G3), external conjugate, intertrochanteric distance as significant risk factors. The multiple linear regression analysis confirmed also that implementation of sentinel lymph node procedure is related with decreased hemoglobin loss in patients with cancer of endometrium compare to lymphadenectomy without sentinel node biopsy(Est.: 0.488; 95% CI: 0.083-0.892, p = 0.018). The most sensitive risk factor of in-hospital outcomes in laparoscopic treatment of endometrial cancer is body mass. The implementation of the sentinel node procedure is associated with reduced surgery time and reduced hemoglobin loss.

Comparison of the Oncologic Outcomes between Exploratory Laparotomy and Laparoscopic Surgery for Endometrial Cancer: Siriraj Experience

Objective: This study was undertaken to evaluate surgical and oncologic outcomes for patients with endometrial cancer, compared between exploratory laparotomy and laparoscopic surgery.Methods: In total, 324 patients who diagnosed with endometrial cancer during January 2007 to December 2016 were enrolled. The comprehensive surgical staging procedures, including total hysterectomy, bilateral salpingo-oophorectomy (BSO), pelvic lymphadenectomy (PL), and/or para-aortic lymphadenectomy (PAL) were undergone. Demographic, clinical, treatment, operative, outcome, and survival outcome were recorded and evaluated. Results: 81 patients performed laparoscopy without conversion. No significant difference in baseline characteristics and pathological characteristics between two groups was observed. When compared with laparotomy group, the laparoscopy group had longer operative time, shorter hospital stays, and lower blood loss. Two-year overall survival (OS) was 97.9% and 95.1% in the laparotomy and laparoscopy groups, respectively (p=0.263). In addition, 2-year disease-free survival (DFS) between both groups was equal (93.7% versus 88.6%, respectively; p=0.309). Conclusion: Laparoscopic surgery is an efficacious, achievable and safe technique for patients with endometrial cancer. Good surgical skills and proper surgical techniques are required to effectuate optimal outcomes.

A retrospective study on oncologic outcome of laparoscopic surgery for endometrial cancer

A retrospective study on oncologic outcome of laparoscopic surgery for endometrial cancer

1880 Usefulness of Sentinel Lymph Node Mapping using Indocyanine Green and Fluorescent Imaging in the Diagnosis of Lymph Node Metastasis During Robotic or Laparoscopic Surgery for Endometrial Cancer

Study Objective The lymph node status is the most important prognostic factor for endometrial cancer. This study aimed to assess whether sentinel lymph node mapping (SLNM) is applicable in endometrial cancer. Design A retrospective review of patients with endometrial cancer who were diagnosed and treated at a single institute (Asan Medical Center, Seoul, Korea) from September 2015 to December 2017 was conducted. One hundred patients underwent robotic (da Vinci®) or laparoscopic surgical treatment, including SLNM with indocyanine green (ICG) fluorescence detection using the Firefly® and NIR/ICG systems. Setting University Hospital. Patients or Participants 100 patients with early stage endometrial cancer. Interventions Robotic or laparoscopic staging surgery. Measurements and Main Results All patients underwent intraoperative SLNM. At least one lymph node area was observed in 100% of SLNM cases. Sentinel node detection and frozen biopsy were performed in all cases, and all patients with metastasis were found on SLNM. The sensitivity and negative predictive value were both 100% in the patient-by-patient and station-by-station analyses. Conclusion SLNM appears to be a feasible method to reduce the morbidity and increase the detection rate in early-stage endometrial carcinoma.

Sentinel Node Biopsy in Endometrial Cancer With Dual Cervical and Fundal Indocyanine Green Injection.

The aim of this study was describe a novel sentinel lymph node (SLN) tracer injection procedure featuring dual cervical and fundal indocyanine green (ICG) injection for endometrial cancer and results of SLN biopsy. Between June 26, 2014 and October 31, 2016, 111 patients underwent laparoscopic surgery for endometrial cancer at our institution. In all cases, we performed SLN biopsy with dual cervical and fundal ICG injection. All SLNs were processed with an ultrastaging technique. A total of 69 patients also underwent total pelvic and paraaortic lymphadenectomy. The detection rates were as follows: 92.79% (103/111) overall for SLNs; 89.19% (99/111) overall for pelvic SLNs; 61.26% (68/111) for bilateral SLNs; 59.46% (66/111) for paraaortic SLNs, and 4% (4/111) for isolated paraaortic SLNs. We found macroscopic lymph node metastasis in 11 patients (9.9%) and microdisease in lymph nodes in another 10 patients, raising the overall rate of lymph node involvement to 18.92%. There was 1 false-negative (negative SLN biopsy but positive aortic lymphadenectomy) and another positive case in 1 undetected SLN. The sensitivity of detection was 94.44%, specificity 100%, negative predictive value 97.83%, and negative likelihood ratio 0.06 for intermediate and high-risk endometrial cancer groups. The SLN biopsy with both cervical and fundal ICG injection offers good overall detection rates and improved mapping of the aortic area. The SLN ultrastaging increases the number of nodes considered positive.

Longer operative time is associated with increased post-operative complications in patients undergoing minimally-invasive surgery for endometrial cancer.

To examine the impact of operative time on the development of post-operative medical and surgical complications in patients undergoing minimally-invasive surgery for endometrial cancer. Patients who underwent laparoscopic surgery for endometrial cancer from 2005 to 2014 were identified from the ACS-NSQIP database. Operative times were initially divided into hour-long intervals and complication rates were determined. Outcomes included development of any complication, medical complication, or surgical complication. Subsequent analysis were based on dividing patients into 2 groups based on operative times <240min and operative times ≥240min. Associations between categorical variables were determined using Chi-Squared and Fisher's exact tests. Differences between means of continuous variables were determined using Student's t-tests. Univariate and multivariate analysis using logistic regression were used to identify predictors of post-operative complications. 9145 patients were included, of which 639 (7%) experienced a complication. As operative time increased, rates of complications also increased. Operative time ≥240min was associated with increased overall complication rate (11.7% vs. 6%, p<0.001), medical complication rate (9.3% vs. 4.2%, p<0.001), and surgical complication rate (3.9% vs. 2.4%, p=0.001). When performing multi-variate logistic regression of factors associated with increased complication rates, increased operative time, COPD, hypertension, diabetes, ASA class ≥3, dependent functional status, and chronic steroid use were found to be independently associated with increased complications. Lymphadenectomy was not associated with increased operative time or increase in complications. Increased operative time is independently associated with increased risk of developing complications after laparoscopic surgery for endometrial cancer.

Extraction of a specimen through an umbilical zigzag incision during laparoscopic surgery for endometrial cancer

BackgroundThough laparoscopic surgery has recently been applied in the treatment of early-stage endometrial cancer, the presence of a large uterus is a hindrance to specimen extraction from the abdominal cavity. We describe a laparoscopic surgical technique for endometrial cancer involving the extraction of the resected specimen through an umbilical zigzag incision.Case presentationA 63-year-old woman with endometrial cancer underwent a total hysterectomy and bilateral salpingo-oophorectomy that was performed laparoscopically. The surgical specimen was extracted through an umbilical zigzag incision. This umbilical zigzag incision created a larger fascial and peritoneal opening, facilitating the removal of the specimen. The final histopathologic results revealed stage 1A G1 endometrioid adenocarcinoma and multiple uterine leiomyomas. Three months after surgery, the wound in the umbilical region was inconspicuous, along with the inward movement of the umbilicus.ConclusionsA laparoscopic surgical technique for endometrial cancer involving the extraction of the specimen through an umbilical zigzag incision seems to reduce the difficulties associated with laparoscopic surgery and maintains cosmesis. Further analyses involving larger numbers of cases and long-term follow-up periods are warranted to evaluate this surgical method.