Isolated para-aortic lymph node metastasis in FIGO stage IA2-IB2 carcinoma of the cervix: Revisiting the role of surgical assessment.

OBJECTIVES: To investigate the utility of para-aortic lymph node dissection among women undergoing radical hysterectomy and pelvic lymph adenectomy for FIGO Stage IA2-IB2 cervical cancer using the National Cancer Database (NCDB). METHODS: We identified patients with stage IA2-IB2 squamous cell, adenosquamous, or adenocarcinoma of the cervix diagnosed 2011-2014 in the NCDB. The primary outcome was the negative predictive value of histologically assessed pelvic lymph node status for para-aortic lymph node status among women undergoing pelvic and para-aortic lymph node dissection. We calculated probability of para-aortic lymph node metastasis conditional on pelvic lymph node status. Finally, we compared overall survival between patients undergoing para-aortic lymph node dissection and those in whom this procedure was omitted. RESULTS: A total of 3212 patients met study inclusion criteria, of whom 994 (30.9%) underwent para-aortic lymph node dissection. In this group, the risk of isolated para-aortic metastasis was 0.11%. The negative predictive value of surgically assessed pelvic lymph nodes to predict para-aortic lymph node status was 99.9% (95% CI 99.9-99.9). Among 93 patients with pelvic lymph node metastasis, 18 (19.4%) had concurrent para-aortic lymph node metastasis. There was no difference in overall survival between women undergoing pelvic and para-aortic lymph node dissection compared with those undergoing pelvic lymphadenectomy only (p = 0.69). CONCLUSIONS: In patients undergoing radical hysterectomy and pelvic lymphadenectomy for stage IA2-IB2 cervical cancer, para-aortic lymph node dissection is not warranted based on the low risk of isolated metastatic disease, and lack of survival benefit associated with the procedure.

Trends in Treatment of Uterine Serous Cancer in the Medicare Population.

OBJECTIVE: The objectives of this study were to evaluate the rates of chemotherapy and radiotherapy delivery in the treatment of uterine serous carcinoma in the Medicare population and to compare clinical outcomes in treated and untreated patients. METHODS: The linked Surveillance, Epidemiology, and End Results and Medicare databases were queried to identify patients with a diagnosis of uterine serous carcinoma between 1992 and 2009. The impact of chemotherapy on survival was analyzed using the Kaplan-Meier method. Factors predictive of outcome were compared using the Cox proportional hazards model. RESULTS: A total of 2188 patients met study eligibility criteria. Stages I, II, III, and IV diseases accounted for 890 (41%), 174 (8%), 470 (21%), and 654 (30%) of the study population, respectively. Chemotherapy, radiotherapy, both, or none, were administered as adjuvant therapy in 635 (29%), 536 (24%), 308 (14%), and 709 (32%) of the study population, respectively. Use of chemotherapy became more frequent over time. Over the study period, and after adjusting for race, time of diagnosis, SEER registry, marital status, stage, age, surgery, lymph node dissection, socioeconomic status, and comorbidity index, there was an association between receipt of radiotherapy alone (hazard ratio [HR], 1.3; 95% CI, 1.04-1.67) and not receiving any treatment (HR, 1.5; 95% CI, 1.2-2.01) and worst survival. Survival was not improved over time. CONCLUSION: Although adjuvant chemotherapy and combination treatment with chemotherapy and radiation were associated with improved survival in our model, there was no significant improvement in survival over time.

Trends in the treatment of uterine leiomyosarcoma in the Medicare population.

OBJECTIVE: Uterine leiomyosarcoma (LMS) is a relatively rare malignancy that is associated with a poor prognosis. The rarity of LMS has led to a lack of consensus regarding appropriate treatment. The goal of this study was to identify the role that chemotherapy and radiotherapy have played in the treatment of uterine LMS in the United States as well as the effectiveness of adjuvant treatment. MATERIALS/METHODS: We used the SEER (Surveillance, Epidemiology, and End Results)-Medicare database to gather information on uterine LMS patients older than the age of 66 years diagnosed between 1992 and 2009. Basic demographic and clinical characteristics were collected. A logistic regression model analysis was performed to determine predictors of treatment. Cox proportional hazards models were used to identify clinical parameters and treatment strategies associated with survival differences. RESULTS: Our final study group included 230 patients. We found that the rate of use of chemotherapy and radiotherapy in the treatment of patients with uterine LMS increased over the period investigated. However, we identified no significant survival advantage associated with either mode of therapy. The strongest predictor of survival was stage at diagnosis. The logistic regression model analysis revealed that age at diagnosis, treatment year, stage, and underlying health status were all independent predictors of chemotherapy. Age at diagnosis was also a predictor of radiation therapy. CONCLUSIONS: The increasing rates of chemotherapy and radiotherapy use in this population seem to be unfounded given the lack of survival benefit. Further investigation into alternative treatment regimens is merited. The prognostic significance of stage at diagnosis indicates the importance of improving early detection of uterine LMS.

Surgical Apgar Score and prediction of morbidity in women undergoing hysterectomy for malignancy.

OBJECTIVE: To validate whether Surgical Apgar Score can predict post-operative morbidity in patients undergoing hysterectomies for malignancies. METHODS: We conducted a retrospective cohort study of consecutive hysterectomies performed for cancer at a single academic institution between 2008 and 2010. The Surgical Apgar Score (SAS) was derived as previously reported. Peri-operative complications were as outlined by the American Board for Obstetrics and Gynecology, and then further subdivided into intra-operative and post-operative events. Univariate and multivariate logistic regressions were utilized. RESULTS: A total of 632 patients were identified. Of our cohort, 64% underwent surgery for cancer arising in the uterus, followed by ovary at 28.6% and cervix at 4%. Median patient age was 60 years old with a mean American Society of Anesthesiologists Physical Status Classification System (ASA) score of 2.5 and a median body mass index of 29. Average Surgical Apgar Score was 7.6. As SAS decreased, the risk of peri-operative complications increased (p<0.01). On univariate analysis SAS could predict for both intra-operative and post-operative complications. However, on multivariate analyses SAS could not independently predict for any post-operative complications (OR 1.02, CI 0.47-2.17). In a multivariable model incorporating age, ASA class, SAS <4, disease site, bowel resection and laparotomy, only ASA class and laparotomy were able to predict for postoperative complication events. CONCLUSIONS: Low Surgical Apgar Score significantly associates with morbidity in women undergoing hysterectomy for malignancy, but is unable to predict which patients will have postoperative complications. This renders the SAS less helpful for the creation of peri-operative metrics to guide post-operative care.

Racial disparities and changes in clinical characteristics and survival for vulvar cancer over time.

OBJECTIVE: The purpose of this study was to examine changes over time in survival for African-American (AA) and white women diagnosed with squamous cell carcinoma of the vulva. STUDY DESIGN: The Surveillance, Epidemiology, and End Results (SEER) Program for 1973-2009 was used for this analysis. We evaluated racial differences in survival between AA and white women. Kaplan-Meier and Cox proportional hazards survival methods were used to assess differences in survival by race by decade of diagnosis. RESULTS: The study sample included 5867 women, including 5379 whites (91.6%) and 488 AA (8.3%). AA women were younger (57 vs 67 years; P < .001) and had a higher rate of distant metastasis (6.1% vs 3.7%; P < .001). AA women had surgery less frequently (84.2% vs 87.6%; P = .03) and more frequently radiotherapy (24.2% vs 20.6%; P < .001). AA women had a hazard ratio (HR) of 0.84 (95% confidence interval [CI], 0.74-0.95) of all-cause mortality and 0.66 (95% CI, 0.53-0.82) of vulvar cancer mortality compared with whites. Adjusting for SEER Registry, marital status, stage, age, surgery, radiotherapy, grade, lymph node status, and decade, AA women had an HR of 0.67 (95% CI, 0.53-0.84) of vulvar cancer-related mortality compared with whites. After adjusting for the same variables, there was a significant difference in survival between AA and whites in the periods of 1990-1999 (HR, 0.62; 95% CI, 0.41-0.95) and 2000-2009 (HR, 0.46; 95% CI, 0.30-0.72) but not earlier. CONCLUSION: AA presented at a significantly younger age compared with white women and had better survival compared with whites.

Patient, treatment and discharge factors associated with hospital readmission within 30 days after surgical cytoreduction for epithelial ovarian carcinoma.

OBJECTIVE: Hospital readmissions are common, costly and increasingly viewed as adverse events. In gynecologic oncology, data on readmissions are limited. The goal of this study was to examine the patient, treatment and discharge factors associated with unplanned readmission after cytoreductive surgery. METHODS: We identified all patients with stages II-IV ovarian cancer who underwent surgical cytoreduction at our institution between 2003 and 2011. A retrospective chart review was performed, and clinical variables were extracted. Utilizing linear and logistic regression, these clinical variables were correlated with risk of readmission. RESULTS: A total of 460 patients were included in the analysis, with the majority having a stage IIIC high grade serous cancer. Optimal cytoreduction (<1.0 cm residual disease) was obtained in 368 patients (81%), and 233 patients (50%) underwent at least one radical procedure. Perioperative complications were observed in 148 patients (32%). A large proportion of our cohort was discharged to rehabilitation facilities (12%) or with a visiting nurse (38%). Fifty five patients (12%) were readmitted within 30 days. On multivariate logistic regression, reoperation and perioperative cardiopulmonary event were the only factors associated with readmission (OR=3.2, 95% CI=1.7-6.0). Discharge home with ancillary services was not protective against readmission, even when controlling for perioperative complications (OR=1.18, 95% CI=0.53-2.64). CONCLUSIONS: Readmission after surgical cytoreduction affected 12% of our population. Multivariate analyses suggested perioperative complications, particularly reoperation and cardiopulmonary event, placed the patient at the greatest risk. Age, comorbidities, surgical radicality and discharge with visiting nurse services/rehabilitation facility did not affect the likelihood of readmission.