Alone Together: Is Strain Experienced Concurrently by Members of Operating Room Teams?: An Event-based Study.

Objective: To identify which strain episodes are concurrently reported by several team members; to identify triggers of strain experienced by operating room (OR) team members during the intraoperative phase. Summary: OR teams are confronted with many sources of strain. However, most studies investigate strain on a general, rather than an event-based level, which does not allow to determine if strain episodes are experienced concurrently by different team members. Methods: We conducted an event-based, observational study, at an academic medical center in North America and included 113 operations performed in 5 surgical departments (general, vascular, pediatric, gynecology, and trauma/acute care). Strain episodes were assessed with a guided-recall method. Immediately after operations, participants mentally recalled the operation, described the strain episodes experienced and their content. Results: Based on 731 guided recalls, 461 strain episodes were reported; these refer to 312 unique strain episodes. Overall, 75% of strain episodes were experienced by a single team member only. Among different categories of unique strain episodes, those triggered by task complexity, issues with material, or others' behaviors were typically experienced by 1 team member only. However, acute patient issues (n = 167) and observations of others' strain (n = 12) (respectively, 58.5%; P < 0.001 and 83.3%; P < 0.001) were often experienced by 2 or more team members. Conclusions and relevance: OR team members are likely to experience strain alone, unless patient safety is at stake. This may jeopardize the building of a shared understanding among OR team members.

Levels of Gynecologic Care: A Task Force Consensus Statement.

Systems of care have been established for obstetrics, trauma, and neonatology. An American College of Obstetricians and Gynecologists Presidential Task Force was established to develop a care system for gynecologic surgery. A group of experts who represent diverse perspectives in gynecologic practice proposed definitions of levels of gynecologic care using the Delphi method. The goal is to improve the quality of gynecologic surgical care performed in the United States by providing a framework of minimal institutional requirements for each level. Subgroups developed draft criteria for each level of care. The entire Task Force then met to reach consensus regarding the levels of care final definitions and parameters. The levels of gynecologic care framework focuses on systems of care by considering institutional resources and expertise, providing guidance on the provision of care in appropriate level facilities. These levels were defined by the ability to care for patients of increasing risk, complexity, and comorbidities, organizing gynecologic care around hospital capability. This framework can also be used to inform the escalation of care to appropriate facilities by identifying patients at risk and guiding them to facilities with the skills, expertise, and capabilities to safely and effectively meet their needs. The levels of gynecologic care framework is intended for use by patients, hospitals, and clinicians in the United States to guide where elective surgery can be done most safely and effectively by specialists and subspecialists in obstetrics and gynecology. The key features of the levels of gynecologic care include ensuring provision of risk-appropriate care and regionalization of care by facility capabilities.

Endometrial Cancer Characteristics and Risk of Recurrence.

OBJECTIVES: To describe clinicopathologic characteristics and survival outcomes of endometrial adenocarcinomas stratified by mismatch repair (MMR) status. METHODS: Single-institution, retrospective study of all women with endometrioid adenocarcinomas treated from January 2012 through December 2017. Patients were categorized into one of three groups based on MMR testing: intact MMR expression (MMR+), probable MMR mutation (MMR-), or MLH1 hypermethylation (hMLH1+). Demographics, pathologic characteristics, recurrence rates, and survival differences were analyzed. RESULTS: In total, 316 women were included in the analysis: 235 (74.4%) patients in the MMR+ group, 10 (3.1%) in the MMR- group, and 71 (22.5%) in the hMLH1+ group. Patients with hMLH1+ were significantly older, exhibited higher-grade histology and presence of lymphovascular space invasion, and were more likely to have received adjuvant treatment. The early stage hMLH1+ patients were more likely to recur (15.3% hMLH1+ vs 2.3% MMR+ vs 12.5% MMR-, P < .001). Hypermethylation remained a significant predictor of recurrence in multivariable analysis (odds ratio, 5.09; 95% confidence interval [CI], 1.54-16.86; P = .008). Recurrence-free survival was significantly reduced in early stage hMLH1+ (hazard ratio, 7.40; 95% CI, 2.80-21.62; P < .001). CONCLUSIONS: Women with hMLH1+ endometrial cancer have worse prognostic features and recur more frequently, even in patients traditionally considered low risk for recurrence.

Hysterectomy Route and Numbers Reported by Graduating Residents in Obstetrics and Gynecology Training Programs.

OBJECTIVE: To characterize trends in self-reported numbers and routes of hysterectomy for obstetrics and gynecology residents using the Accreditation Council for Graduate Medical Education (ACGME) case log database. METHODS: Hysterectomy case log data for obstetrics and gynecology residents completing training between 2002-2003 and 2017-2018 were abstracted from the ACGME database. Total numbers of hysterectomies and modes of approach (abdominal, laparoscopic, and vaginal) were compared using bivariate statistics, and trends over time were analyzed using simple linear regression. RESULTS: Hysterectomy data were collected from 18,982 obstetrics and gynecology residents in a median of 243 (interquartile range 241-246) ACGME-accredited programs. The number of graduating residents increased significantly over time (12.1/year, P<.001), whereas the number of residency programs decreased significantly (0.52 fewer programs per year, P<.001) over the 16-year period. For cases logged as "surgeon," the median number of abdominal hysterectomies decreased by 56.5% from 85 (interquartile range 69-102) to 37 (interquartile range 34-43) (P<.001). The median number of vaginal hysterectomies decreased by 35.5% from 31 (interquartile range 24-39) to 20 (interquartile range 17-25) (P=.002). The median total number of hysterectomies per resident decreased by 6.3% from 112 (interquartile range 97-132) to 105 (interquartile range 92-121) (P=.036). In contrast, the median number of laparoscopic hysterectomies increased by 115% from 20 (interquartile range 13-28) in 2008-2009 to 43 (interquartile range 32-56) in 2017-2018, despite the decrease in overall number of hysterectomies (P<.001). These trends were statistically significant. CONCLUSIONS: The total number of hysterectomies performed by obstetrics and gynecology residents in the United States is decreasing, and the routes are changing with decreases in abdominal and vaginal approaches, and an increase in use of laparoscopic hysterectomy.

Communication Matters: a Survey Study of Communication Didactics in Obstetrics/Gynecology Residency.

BACKGROUND: Delivery of excellent patient care hinges on effective communication. Improved communication between physicians, patients, and colleagues can facilitate shared decision-making and foster successful interprofessional teams. Despite the importance of this skill, little is understood about the status or acceptability of dedicated communication training during obstetrics and gynecology (OB/GYN) residency. OBJECTIVE: To explore the national landscape of dedicated communication didactics during OB/GYN training. METHODS: Residents and program directors (PDs) at ACGME-accredited programs were emailed anonymized surveys. Survey responses pertaining to communication didactics and trainee experiences were evaluated using descriptive statistics and chi-squared tests. RESULTS: Of 143 PDs, 45 responded (31.5%). Although the total number of residents receiving our survey is unattainable, our 215 resident respondents can be estimated to represent at least 4.4% of trainees. 98.1% of residents reported challenging clinical communication at least monthly, with many reporting this weekly (47.9%) and daily (30.0%). A majority of PDs (77.8%) and residents (67.0%) endorsed interest in communication training. 62.2% of programs reported formally teaching communication skills. Certain topics were infrequently taught yet cited by residents as particularly challenging-such as "diffusing conflict" and "angry patient or family members." PDs tended to significantly overestimate trainee competence in conducting difficult conversations with both patients (p = 0.0003) and interdisciplinary colleagues (p < 0.0001), as compared with resident self-assessments. CONCLUSIONS: Residents encounter frequent challenging communications interactions, and often feel inadequately equipped to navigate them. Dedicated didactics may provide a critical component to optimally educating of the next generation of trainees within OB/GYN and more broadly.

Constitutively active ESR1 mutations in gynecologic malignancies and clinical response to estrogen-receptor directed therapies.

OBJECTIVE: Endocrine therapy is often considered as a treatment for hormone-responsive gynecologic malignancies. In breast cancer, activating mutations in the estrogen receptor (mutESR1) contribute to therapeutic resistance to endocrine therapy, especially aromatase inhibitors (AIs). The purpose of this study was to evaluate the frequency and clinical relevance of ESR1 genomic alterations in gynecologic malignancies. METHODS: DNA from FFPE tumor tissue obtained during routine clinical care for 9645 gynecologic malignancies (ovary, fallopian tube, uterus, cervix, vagina, vulvar, and placenta) was analyzed for all classes of genomic alterations (base substitutions (muts), insertions, deletions, rearrangements, and amplifications) in ESR1 by hybrid capture next generation sequencing. A subset of alterations was characterized in laboratory-based transcription assays for response to endocrine therapies. RESULTS: A total of 295 ESR1 genomic alterations were identified in 285 (3.0%) cases. mutESR1 were present in 86 (0.9%) cases and were more common in uterine compared to other cancers (2.0% vs <1%, respectively p < 0.001). mutESR1 were enriched in carcinomas with endometrioid versus serous histology (4.4% vs 0.2% respectively, p < 0.0001 in uterine and 3.5% vs 0.3% respectively, p = 0.0004 in ovarian carcinomas). In three of four patients with serial sampling, mutESR1 emerged under the selective pressure of AI therapy. Despite decreased potency of estrogen receptor (ER) antagonists in transcriptional assays, clinical benefit was observed following treatment with selective ER-targeted therapy, in one case lasting >48 months. CONCLUSIONS: While the prevalence of ESR1 mutations in gynecologic malignancies is low, there are significant clinical implications useful in guiding therapeutic approaches for these cancers.

Prospective Evaluation of Lymph Node Processing at Staging Surgery for High-grade Endometrial Cancer.

To determine whether the processing of additional adipose tissue collected during lymph node (LN) dissection results in the identification of additional LNs during endometrial cancer (EC) staging and to determine if the division of LNs into nodal basin-specific specimens has an effect on the number of LNs identified during EC staging. A prospective randomized controlled trial was performed on women with high-grade EC undergoing surgical staging. Subjects were randomized to collection of LNs into nodal basin-specific containers on the randomized side versus simple labeling on the nonrandomized side. The total number of LNs and total number of LNs with metastases on the randomized versus the nonrandomized side were compared. The remaining adipose tissue from each LN specimen was submitted for histologic examination. We analyzed the number of LNs with and without metastases identified from additional adipose tissue. Of 120 consented subjects, 56 had sufficient data for analysis. The additional adipose tissue contained 7.5 additional LNs per patient on average (range: 0-26). In 2/54 total cases (3.7%) and 2/5 cases with nodal metastases (40%), the additional adipose contained LNs with metastases. In both cases, metastases were also detected in grossly identified LN candidates. The mean number of LNs identified was not significantly different based on method of collection (P=0.22). The mean number of LNs containing metastases per side was not significantly different (P=0.58). Processing of adipose tissue does increase the total number of LNs identified, however, it does not influence EC stage. No difference in LN counts was noted with basin-specific collection.

Vulvar Cancer, Version 1.2017, NCCN Clinical Practice Guidelines in Oncology.

Vulvar cancer is a rare gynecologic malignancy. Ninety percent of vulvar cancers are predominantly squamous cell carcinomas (SCCs), which can arise through human papilloma virus (HPV)-dependent and HPV-independent pathways. The NCCN Vulvar Cancer panel is an interdisciplinary group of representatives from NCCN Member Institutions consisting of specialists in gynecological oncology, medical oncology, radiation oncology, and pathology. The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Vulvar Cancer provide an evidence- and consensus-based approach for the management of patients with vulvar SCC. This manuscript discusses the recommendations outlined in the NCCN Guidelines for diagnosis, staging, treatment, and follow-up.

Performance of sentinel lymph node biopsy in high-risk endometrial cancer.

OBJECTIVE: To determine the rate and performance of sentinel lymph node (SLN) mapping among women with high-risk endometrial cancers. METHODS: Patients diagnosed between 2012 and 2015 with uterine cancer of grade 3 endometrioid, clear cell, serous or carcinosarcoma histology and who underwent SLN mapping prior to full pelvic lymph node dissection were included. Subjects underwent methylene blue or ICG injection for laparoscopic (N = 16) or robotic-assisted laparoscopic (N = 20) staging. Outcomes included SLN mapping rates, SLN and non-SLN positive rates, false negative SLN algorithm rate, and the negative predictive value (NPV) of the SLN algorithm. Fisher's exact test was used to compare mapping and node positivity rates. RESULTS: 9/36 (25%) patients with high-risk uterine cancer had at least one metastatic lymph node identified. Successful mapping occurred in 30/36 (83%) patients. SLN mapped to pelvic nodes bilaterally in 20 (56%), unilaterally in 9 (25%), and aortic nodes only in 1 (3%). Malignancy was identified in 14/95 (15%) of all sentinel nodes and 12/775 (1.5%) of all non-sentinel nodes (p < 0.001). The false negative rate of SLN mapping alone was 2/26 (7.7%); the NPV was 92.3%. When the SLN algorithm was applied retrospectively the false negative rate was 0/31 (0%); the NPV was 100%. CONCLUSION: SLN mapping rates for high-risk cancers are slightly lower than in prior reports of lower risk cancers. The NPV of the SLN mapping alone is 92% and rises to 100% when the SLN algorithm is applied. Such results are acceptable and consistent with larger subsets of lower risk endometrial cancers.

Robotic surgical training: Where are we?

BACKGROUND AND OBJECTIVE: Over the past 10years, robotic surgery has revolutionized the advancement of MIS in gynecologic oncology. As the use of robotic surgery has increased, so has the interest in the surgical training of gynecologic oncology fellows. The purpose of this review is to summarize the state of robotic surgical education in Gynecologic Oncology. METHODS: Several electronic databases were searched to identify studies that discussed robotic surgical education in gynecologic oncology. Particular attention was given to articles that discussed educational curriculum. The various curriculums were compared and summarized. RESULTS: The first reports of robotic surgery curriculums in gynecologic oncology emerged in 2008. Prior to that the early adapters had to rely on less structured curriculums that essentially used live animal models and cadaveric dissections on the robot to simulate live surgery. More recent surgical curriculums are more structured and include the same basic components: didactics and a graduated hands-on experience. There is also an accredited robotic educational curriculum, the Fundamentals of Robotic Surgery (FRS), which combine an on-line curriculum with dry lab and operating room components that can be scored using a validated assessment tool. CONCLUSIONS: Robotic surgical education has come a long way in the decade that the robotic platform has been available in the U.S. Although there is still no standardized curriculum, most fellowship training programs in gynecologic oncology have fairly consistent training. Simulation training is another tool that can help a surgeon achieve proficiency quicker.

Uterine Sarcoma, Version 1.2016: Featured Updates to the NCCN Guidelines.

The NCCN Guidelines for Uterine Neoplasms provide interdisciplinary recommendations for treating endometrial carcinoma and uterine sarcomas. These NCCN Guidelines Insights summarize the NCCN Uterine Neoplasms Panel's 2016 discussions and major guideline updates for treating uterine sarcomas. During this most recent update, the panel updated the mesenchymal tumor classification to correspond with recent updates to the WHO tumor classification system. Additionally, the panel revised its systemic therapy recommendations to reflect new data and collective clinical experience. These NCCN Guidelines Insights elaborate on the rationale behind these recent changes.

Increase in Cesarean Operative Time Following Institution of the 80-Hour Workweek.

BACKGROUND: In 2003, the Accreditation Council for Graduate Medical Education limited resident duty hours to 80 hours per week. More than a decade later, the effect of the limits on resident clinical competence is not fully understood. OBJECTIVE: We sought to assess the effect of duty hour restrictions on resident performance of an uncomplicated cesarean delivery. METHODS: We reviewed unlabored primary cesarean deliveries at Duke University Hospital after 34 weeks gestation, between 2003 and 2011. Descriptive statistics and linear regression were used to compare total operative time with incision to delivery time as a function of years since institution of the 80-hour workweek. Resident training level, subject body mass index, estimated blood loss, and skin closure method were controlled for in the regression model. RESULTS: We identified 444 deliveries that met study criteria. The mean (SD) total operative time in 2003-2004 was 43.3 (14.3) minutes and 59.6 (10.7) minutes in 2010-2011 (P < .001). Multivariable regression demonstrated an increase in total operative time of 1.9 min/y (P < .001) but no change in incision to delivery time (P = .05). The magnitude of increased operative time was seen among junior residents (2.0 min/y, P < .001) compared to that of senior residents (1.2 min/y, P = .06). CONCLUSIONS: Since introduction of the 2003 duty hour limits, there has been an increase of nearly 20 minutes in the time required for a routine cesarean delivery. It is unclear if the findings are due to a change in residency duty hours or to another aspect of residency training.

Evaluation of hybrid algorithm for analysis of scattered light using ex vivo nuclear morphology measurements of cervical epithelium.

We evaluate a new hybrid algorithm for determining nuclear morphology using angle-resolved low coherence interferometry (a/LCI) measurements in ex vivo cervical tissue. The algorithm combines Mie theory based and continuous wavelet transform inverse light scattering analysis. The hybrid algorithm was validated and compared to traditional Mie theory based analysis using an ex vivo tissue data set. The hybrid algorithm achieved 100% agreement with pathology in distinguishing dysplastic and non-dysplastic biopsy sites in the pilot study. Significantly, the new algorithm performed over four times faster than traditional Mie theory based analysis.

Postoperative Pain Scores and Narcotic Use in Robotic-assisted Versus Laparoscopic Hysterectomy for Endometrial Cancer Staging.

STUDY OBJECTIVE: To retrospectively evaluate perioperative pain and analgesic and antiemetic use in patients who underwent surgical staging for endometrial cancer using traditional versus robotic-assisted laparoscopy. DESIGN: We identified women in a single institution who underwent minimally hysterectomy for endometrial cancer from 2008 to 2012. Patient characteristics and perioperative outcomes, including analgesic and antiemetic use and pain scores, were analyzed. After univariate analysis, a multivariate linear regression model was generated to determine factors associated with narcotic use in the post anesthesia care unit (PACU) (Canadian Task Force Classification II-3). SETTING: A single academic institution in the United States from 2008 to 2012. PATIENTS: Women undergoing total laparoscopic hysterectomy or robotic-assisted laparoscopic hysterectomy for endometrial cancer. INTERVENTIONS: Laparoscopic or robotic-assisted laparoscopic hysterectomy. MEASUREMENTS AND MAIN RESULTS: Three hundred thirty-five women were included (213 laparoscopy and 122 robotic-assisted laparoscopy). There was no difference in pain scores at 0 to 6 and 6 to 12 hours after surgery; at 12 to 24 hours, robotic-assisted surgery was associated with higher median pain scores (5/10 vs 4/10, p = .012). Robotic-assisted surgery was associated with a longer anesthesia time (289 vs 255 minutes, p < .001), similar antiemetic use (p = .40), and lower narcotic use in the postanesthesia care unit (PACU) (1.3 mg vs 2.5 mg morphine equivalents, p = .003). There was no difference in narcotic use on the postoperative floor (p = .46). In multivariate analysis controlling for age, menopausal status, anesthesia duration, and local anesthetic use, hysterectomy type was not a significant predictor of PACU narcotic use (p = .86). CONCLUSIONS: In a retrospective analysis, a robotic-assisted approach to endometrial cancer was not associated with reduced PACU narcotic or antiemetic use compared with the traditional laparoscopic approach. Twenty-four-hour narcotic and antiemetic use was also not different between the 2 approaches.

Cervical Cancer, Version 2.2015.

The NCCN Guidelines for Cervical Cancer provide interdisciplinary recommendations for treating cervical cancer. These NCCN Guidelines Insights summarize the NCCN Cervical Cancer Panel's discussion and major guideline updates from 2014 and 2015. The recommended systemic therapy options for recurrent and metastatic cervical cancer were amended upon panel review of new survival data and the FDA's approval of bevacizumab for treating late-stage cervical cancer. This article outlines relevant data and provides insight into panel decisions regarding various combination regimens. Additionally, a new section was added to provide additional guidance on key principles of evaluation and surgical staging in cervical cancer. This article highlights 2 areas of active investigation and debate from this new section: sentinel lymph node mapping and fertility-sparing treatment approaches.

Vaginal cuff thermal injury by mode of colpotomy at total laparoscopic hysterectomy: a randomized clinical trial.

STUDY OBJECTIVE: To evaluate if the use of Valleylab mode ("V mode") (Covidien, Mansfield, MA) electrothermal energy for colpotomy during total laparoscopic hysterectomy (LH) results in a smaller margin of thermal injury to the upper vagina compared with traditional cut/coagulate (cut/coag) electrothermal energy. DESIGN: Prospective randomized clinical trial (Canadian Task Force classification I). SETTING: University medical center. PATIENTS: A total of 101 subjects who underwent LH between June 2010 and August 2012. INTERVENTIONS: Subjects were randomized to colpotomy by V mode electrothermal energy or cut/coag electrothermal energy. MEASUREMENTS AND MAIN RESULTS: The primary end point was the median depth of thermal injury measured in millimeters. The secondary end points included the proportion of subjects who developed granulation tissue, induration, infection, or dehiscence at the vaginal cuff at 4 weeks, 3 months, or 6 months postoperatively. There was no significant difference in the median depth of thermal injury in the cut/coag and V mode arms (anterior margin: 0.68 mm vs 0.63 mm [p = .94], posterior margin: 0.66 mm vs 0.70 mm [p = .87], respectively). Twenty-seven percent of subjects in each arm developed at least 1 of the clinical end points at 4 weeks, 3 months, or 6 months postoperatively (granulation tissue: 6%-18% vs 8%-21%, induration: 0%-2% vs 4%-5%, infection: 0%-4% vs 0%-10%, dehiscence: 2% vs 0% in the cut/coag and V mode arms, respectively), with no difference between arms (p = 1.0). CONCLUSION: The V mode does not reduce the depth of thermal injury compared with cut/coag electrothermal energy when used for colpotomy incision during total laparoscopic hysterectomy (Clinical Trials.gov ID: NCT02080546).

Patient preferences in advanced or recurrent ovarian cancer.

BACKGROUND: The objective of this study was to elucidate relative preferences of women with ovarian cancer for symptoms, treatment-related side effects, and progression-free survival (PFS) relevant to choosing a treatment regimen. METHODS: Women with advanced or recurrent ovarian cancer participated in a survey that included 3 methods to measure patient preferences (ratings, rankings, and a discrete-choice experiment) for 7 attributes: mode of administration, visit frequency, peripheral neuropathy, nausea and vomiting, fatigue, abdominal discomfort, and PFS. Participants were asked to choose between 2 unlabeled treatment scenarios that were characterized using the 7 attributes. Each participant completed 12 choice questions in which attribute levels were assigned according to an experimental design and a fixed-choice question representing 2 chemotherapy regimens for ovarian cancer. RESULTS: In total, 95 women completed the survey. Participants' ratings and rankings revealed greater concern and importance for PFS than for any other attribute (P < .0001 for all). The discrete-choice experiment revealed that the relative odds that a participant would choose a scenario with 18 months, 21 months, and 24 months of PFS versus 15 months of PFS were 1.5 (P = .01), 3.4 (P < .001), and 7.5 (P < .001), respectively. However, participants' choices indicated that they were willing to accept a shorter PFS to avoid severe side effects: 6.7 months to reduce nausea and vomiting from severe to mild, 5.0 months to reduce neuropathy from severe to mild, and 3.7 months to reduce abdominal symptoms from severe to moderate. CONCLUSIONS: PFS is the predominant driver of patient preferences for chemotherapy regimens. However, women in the current study were willing to trade significant PFS time for reductions in treatment-related toxicity.

Relationship between minimally invasive hysterectomy, pelvic cytology, and lymph vascular space invasion: a single institution study of 458 patients.

OBJECTIVE: The aim of this study is to determine whether a minimally invasive approach to hysterectomy is associated with an increased rate of lymph vascular space invasion (LVSI) and/or malignant pelvic peritoneal cytology in endometrial cancer. METHODS: We performed a single institution analysis of 458 women with endometrial cancer who underwent either total abdominal hysterectomy (TAH) or minimally invasive hysterectomy (MIH) with use of a disposable uterine manipulator. All patients had endometrial cancer diagnosed by endometrial biopsy at a single academic institution between 2002 and 2012. Exclusion criteria were pre-operative D&C and/or hysteroscopy, uterine perforation or morcellation, and conversion to laparotomy. Multivariate logistic regression models to determine if type of hysterectomy predicts either LVSI or presence of abnormal cytology were controlled for grade, stage, depth of invasion, tumor size, cervical and adnexal involvement. RESULTS: LVSI was identified in 39/214 (18%) MIH and 44/242 (18%) TAH (p=0.99). Pelvic washings were malignant in 14/203 (7%) MIH and 16/241 (7%) TAH (p=1.0). Washings were atypical or inconclusive in 16/203 (8%) MIH and 6/241 (2.5%) TAH (p=0.014). In multivariate analyses, type of hysterectomy was not a significant predictor of either LVSI (p=0.29) or presence of malignant washings (p=0.66), but was a predictor of atypical or inconclusive washings (p=0.03). CONCLUSION: Minimally invasive hysterectomy with use of a uterine manipulator for endometrial cancer is not associated with LVSI or malignant cytology. Algorithms that better determine the etiology and implications of inconclusive or atypical pelvic cytology are needed to inform the possible additional risk associated with a minimally invasive approach to endometrial cancer.