Inpatient Hospital Costs and Route of Hysterectomy for Management of Benign Uterine Disease in the 90-Day Global Billing Period.

OBJECTIVE: To compare inpatient hospital costs and complication rates within the 90-day global billing period among routes of hysterectomy. METHODS: The Premier Healthcare Database was used to identify patients who underwent hysterectomy between 2000 and 2020. Current Procedural Terminology codes were used to group patients based on route of hysterectomy. Comorbidities and complications were identified using International Classification of Diseases codes. Fixed, variable, and total costs for inpatient care were compared. Fixed costs consist of costs that are set for the case, such as operating room time or surgeon costs. Variable costs include disposable and reusable items that are billed additionally. Total costs equal fixed and variable costs combined. Data were analyzed using analysis of variance, t test, and χ 2 test, as appropriate. Factors independently associated with increased total costs were assessed using linear mixed effects models. Multivariate logistic regression was performed to evaluate associations between the route of surgery and complication rates. RESULTS: A cohort of 400,977 patients were identified and grouped by route of hysterectomy. Vaginal hysterectomy demonstrated the lowest inpatient total cost ($6,524.00 [interquartile range $4,831.60, $8,785.70]), and robotic-assisted laparoscopic hysterectomy had the highest total cost ($9,386.80 [interquartile range $6,912.40, $12,506.90]). These differences persisted with fixed and variable costs. High-volume laparoscopic and robotic surgeons (more than 50 cases per year) had a decrease in the cost difference when compared with costs of vaginal hysterectomy. Abdominal hysterectomy had a higher rate of complications relative to vaginal hysterectomy (adjusted odds ratio [aOR] 1.52, 95% CI, 1.39-1.67), whereas laparoscopic (aOR 0.85, 95% CI, 0.80-0.89) and robotic-assisted (aOR 0.92, 95% CI, 0.84-1.00) hysterectomy had lower rates of complications compared with vaginal hysterectomy. CONCLUSION: Robotic-assisted hysterectomy is associated with higher surgical costs compared with other approaches, even when accounting for surgeon volume. Complication rates are low for minimally invasive surgery, and it is unlikely that the robotic-assisted approach provides an appreciable improvement in perioperative outcomes.

Development and Validation of a Model for Predicting Surgical Site Infection After Pelvic Organ Prolapse Surgery.

IMPORTANCE: Surgical site infection (SSI) is a common and costly complication. Targeted interventions in high-risk patients may lead to a reduction in SSI; at present, there is no method to consistently identify patients at increased risk of SSI. OBJECTIVE: The aim of this study was to develop and validate a model for predicting risk of SSI after pelvic organ prolapse surgery. STUDY DESIGN: Women undergoing surgery between 2011 and 2017 were identified using Current Procedural Terminology codes from the Centers for Medicare and Medicaid Services 5% Limited Data Set. Surgical site infection ≤90 days of surgery was the primary outcome, with 41 candidate predictors identified, including demographics, comorbidities, and perioperative variables. Generalized linear regression was used to fit a full specified model, including all predictors and a reduced penalized model approximating the full model. Model performance was measured using the c-statistic, Brier score, and calibration curves. Accuracy measures were internally validated using bootstrapping to correct for bias and overfitting. Decision curves were used to determine the net benefit of using the model. RESULTS: Of 12,334 women, 4.7% experienced SSI. The approximated model included 10 predictors. Model accuracy was acceptable (bias-corrected c-statistic [95% confidence interval], 0.603 [0.578-0.624]; Brier score, 0.045). The model was moderately calibrated when predicting up to 5-6 times the average risk of SSI between 0 and 25-30%. There was a net benefit for clinical use when risk thresholds for intervention were between 3% and 12%. CONCLUSIONS: This model provides estimates of probability of SSI within 90 days after pelvic organ prolapse surgery and demonstrates net benefit when considering prevention strategies to reduce SSI.

Adverse outcomes after minimally invasive surgery for pelvic organ prolapse in women 65 years and older in the United States.

INTRODUCTION AND HYPOTHESIS: To describe complications at the time of surgery, 90-day readmission and 1-year reoperation rates after minimally invasive pelvic organ prolapse (POP) in women > 65 years of age in the US using Medicare 5% Limited Data Set (LDS) Files. METHODS: Medicare is a federally funded insurance program in the US for individuals 65 and older. Currently, 98% of individuals over the age of 65 in the US are covered by Medicare. We identified women undergoing minimally invasive POP surgery, defined as laparoscopic or vaginal surgery, in the inpatient and outpatient settings from 2011-2017. Patient and surgical characteristics as well as adverse events were abstracted. We used logistic regression for complications at index surgery and Cox proportional hazards regression models for time to readmission and time to reoperations. RESULTS: A total of 11,779 women met inclusion criteria. The mean age was 72 (SD ± 8) years; the majority were White (91%). Most procedures were vaginal (76%) and did not include hysterectomy (68%). The rate of complications was 12%; vaginal hysterectomy (aOR 2.4, 95% CI 2.2-2.7) was the factor most strongly associated with increased odds of complications. The 90-day readmission rate was 7.3%. The most common reason for readmission was infection (2.0%), three quarters of which were urinary tract infections. Medicaid eligibility (aHR 1.5, 95% CI 1.3-1.8) and concurrent sling procedures (aHR 1.2, 95% CI 1.04-1.4) were associated with a higher risk of 90-day readmission. The 1-year reoperation rate was 4.5%. The most common type of reoperation was a sling procedure (1.8%). Obliterative POP surgery (aHR 0.6, 95% CI 0.4-0.9) was associated with a lower risk of reoperation than other types of surgery. CONCLUSIONS: US women 65 years and older who are also eligible to receive Medicaid are at higher risk of 90-day readmission following minimally invasive surgery for POP with the most common reason for readmission being UTI.

Racial disparities in complications and costs after surgery for pelvic organ prolapse.

INTRODUCTION AND HYPOTHESIS: The study objective was to examine the impact of race on inpatient complications and costs after inpatient surgery for pelvic organ prolapse (POP). METHODS: In this retrospective cohort study, we identified women who underwent surgery for POP between 2012 and 2014. Patient demographics, outcomes, hospital characteristics, and hospital costs were extracted. Demographic and clinical characteristics were compared by race using Kruskal-Wallis for continuous variables and Chi-squared test for categorical variables. Multivariate logistic and linear regressions were used to identify variables associated with increased complications and costs respectively. RESULTS: A total of 29,347 women with a median age of 62 years underwent inpatient surgery for POP between 2012 and 2014. There were 4,419 women (15%) who had at least one in-hospital postoperative complication. Rates of any postoperative complication were significantly higher among Black women (20%) than among white, Hispanic, and women of other races (16%, 11%, and 13% respectively, p < 0.01). The median total cost associated with surgeries for POP was $8,267 (IQR $6,008-$11,734). After multivariate analyses controlled for potential confounders, postoperative complications remained independently associated with Black race (aOR 1.21) whereas Hispanic and other races were associated with decreased odds of complications (aOR 0.62, and aOR 0.77) relative to white race. After controlling for confounders, Hispanic women had lower associated hospital costs. CONCLUSIONS: Black women undergoing inpatient surgery for POP had a 21% increase in the odds of complications, but no difference in costs compared with white women, whereas Hispanic women had the lowest odds of complications and lowest costs.

Gender Disparity in Cystectomy Postoperative Outcomes: Propensity Score Analysis of the National Surgical Quality Improvement Program Database.

BACKGROUND: While female gender is considered a protective determinant in the majority of cancers, outcomes in women diagnosed with bladder cancer have continued to show disproportional mortality when compared with men. OBJECTIVE: The aim of this retrospective propensity score-matched analysis was to evaluate the intra- and postoperative differences among genders, as well as to evaluate reproductive organ-preserving radical cystectomy (ROPRC) as compared with radical cystectomy (RC) as a potential confounder in female cystectomy patients. DESIGN, SETTING, AND PARTICIPANTS: Utilizing the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP), men and women undergoing a cystectomy between 2011 and 2017 were analyzed. In addition, females undergoing ROPRC and RC were analyzed for immediate postoperative outcomes. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Men and women undergoing a cystectomy were evaluated through propensity score matching (PSM) for baseline differences using a 1:1 caliper width of 0.2 to the nearest neighbor. Using multivariable logistic regression analysis, we evaluated differences in the risk of readmission, complications, and reoperation in the immediate postsurgical period in males and females. Similarly, differences were assessed in ROPRC and RC groups. RESULTS AND LIMITATIONS: We achieved a balance between males and females after PSM: 1263 males and 1263 females treated with cystectomy. The risks of readmission (adjusted odds ratio [aOR] 1.228 [1.005-1.510], p=0.045), superficial surgical site infection (aOR 1.507 [1.095-2.086], p=0.012), and transfusion (aOR 2.031 [1.713-2.411], p<0.001) were increased in females undergoing a cystectomy compared with males. No differences were observed in surgical outcomes in ovarian sparing/RC cohort. CONCLUSIONS: Using the 2011-2017 NSQIP database, we were able to demonstrate an increased rate of postoperative transfusion, readmission rate, and surgical site infection in females who underwent cystectomy. Our findings suggest that females experience an increased rate of complications in the immediate postoperative period. This may ultimately lead to worse oncologic outcomes in females after an RC. Lastly, we did not find any increased rate of complications in ROPRC as compared with RC. PATIENT SUMMARY: This study highlights differences in immediate postoperative outcomes between males and females undergoing cystectomy for bladder cancer. Some of these potential differences include higher risk of infection, transfusion, and readmission. These differences may predispose females to worse long-term outcomes. In addition, due to potential benefits of ovarian preservation in the recent literature, we also evaluated the risks and complications of ovarian sparing cystectomy. We found ovarian preservation to be a safe and feasible procedure in a highly selected group of patients.

Perioperative Complication Rates After Colpopexy in African American and Hispanic Women.

OBJECTIVES: The objective of this study was to determine if race affects complication rates after colpopexy. METHODS: This was an observational study exempt from institutional review board review. Data were obtained from the American College of Surgeons National Surgical Quality Improvement Program database from 2010 to 2015. Current Procedural Terminology codes were used to identify patients with a history of colpopexy. Patients were stratified into 3 groups: White, Hispanic, and African American. Descriptive statistics were reported as means with standard deviations. Three-group comparison was performed using Kruskal-Wallis or 1-way analysis of variance. Pairwise analysis was performed with Student t test, Wilcoxon rank sum test, χtest, or Fisher exact test. Stepwise backward multivariable logistic regression was used to identify factors associated with the composite complication rate. RESULTS: A total of 13,206 patients met the inclusion and exclusion criteria. Seven hundred thirty-eight patients (5.5%) were African American, and 1210 (9.2%) were Hispanic. The overall complication rate for African Americans, Hispanics, and Whites was 15.0%, 12.0%, and 11.5% (P = 0.006), respectively. The most common complication in the African American group was postoperative transfusion. Multivariable logistic regression found significant associations with perioperative complications and being African American (adjusted odds ratio [aOR], 1.29), higher body mass index (aOR, 1.02), inpatient status (aOR, 1.45), coagulopathy (aOR, 2.77), preoperative transfusion (aOR, 5.09), American Society of Anesthesiologists class 3 or higher (aOR, 1.45), higher preoperative white blood cell count (aOR, 1.04), concomitant sling placement (aOR, 1.19), longer operating time (aOR, 1.003), and longer length of stay (aOR, 1.05). CONCLUSIONS: African Americans are at an increased risk of perioperative complications after colpopexy, although the reason for this increase is unknown.

Survey of pelvic reconstructive surgeons on performance of opportunistic salpingectomy at the time of pelvic organ prolapse repair.

INTRODUCTION AND HYPOTHESIS: Opportunistic salpingectomy (OS) at the time of benign hysterectomy has recently emerged as a potential primary preventive modality for ovarian cancer. Our objective was to determine whether the reported rate of OS at the time of prolapse surgery is similar to the rate of OS at the time of gynecologic surgery for non-prolapse indications. METHODS: An anonymous online survey was sent to the Society of Gynecologic Surgery members. Responses were divided into surgeons who did and did not perform OS at the time of prolapse repair. Differences between surgeons who did and did not perform OS were evaluated using the chi-square test. Multivariable logistic regression was used to identify which responses related to increased odds of performing OS. RESULTS: There were 117 (33.1%) completed responses; of these, 98 (83.8%) reported performing OS at the time of prolapse repair, which was similar to the reported rate of OS at the time of hysterectomy for non-prolapse indications, 82.1%. After multivariable logistic regression, performance of salpingectomy at the time of hysterectomy for a non-prolapse indication (aOR: 17.9, 95% CI: 3.11-42.01), use of a laparoscopic or robotic surgical approach (aOR 14.1, 95% CI: 1.81-32.21) and completion of an FPMRS fellowship (aOR: 3.47, 95% CI: 1.20-10.02) were associated with a higher likelihood of performing OS at the time of prolapse repair. CONCLUSIONS: OS at the time prolapse repair is performed more frequently with concomitant hysterectomy compared with OS at the time of post-hysterectomy prolapse repair and is similar to rates of OS performed at the time of hysterectomy for non-prolapse indications.

Geographic Variance of Cost Associated With Hysterectomy.

OBJECTIVE: To estimate whether the cost of hysterectomy varies by geographic region. METHODS: This was a cross-sectional, population-based study using the 2013 Healthcare Cost and Utilization Project National Inpatient Sample of women older than 18 years undergoing inpatient hysterectomy for benign conditions. Hospital charges obtained from the National Inpatient Sample database were converted to actual costs using cost-to-charge ratios provided by the Healthcare Cost and Utilization Project. Multivariate regression was used to assess the effects that demographic factors, concomitant procedures, diagnoses, and geographic region have on hysterectomy cost above the median. RESULTS: Women who underwent hysterectomy for benign conditions were identified (N=38,414). The median cost of hysterectomy was $13,981 (interquartile range $9,075-29,770). The mid-Atlantic region had the lowest median cost of $9,661 (interquartile range $6,243-15,335) and the Pacific region had the highest median cost, $22,534 (interquartile range $15,380-33,797). Compared with the mid-Atlantic region, the Pacific (adjusted odds ratio [OR] 10.43, 95% confidence interval [CI] 9.44-11.45), South Atlantic (adjusted OR 5.39, 95% CI 4.95-5.86), and South Central (adjusted OR 2.40, 95% CI 2.21-2.62) regions were associated with the highest probability of costs above the median. All concomitant procedures were associated with an increased cost with the exception of bilateral salpingectomy (adjusted OR 1.03, 95% CI 0.95-1.12). Compared with vaginal hysterectomy, laparoscopic and robotic modes of hysterectomy were associated with higher probabilities of increased costs (adjusted OR 2.86, 95% CI 2.61-3.15 and adjusted OR 5.66, 95% CI 5.11-6.26, respectively). Abdominal hysterectomy was not associated with a statistically significant increase in cost compared with vaginal hysterectomy (adjusted OR 1.01, 95% CI 0.91-1.09). CONCLUSION: The cost of hysterectomy varies significantly with geographic region after adjusting for confounders.

Trans-abdominal ultrasound shear wave elastographyfor quantitative assessment of female bladder neck elasticity.

INTRODUCTION AND HYPOTHESIS: Disorders of micturition result from a wide variety of conditions and evaluation often involves multiple diagnostic modalities. However, the sensitivity and specificity of these techniques are highly variable and may not always yield a diagnosis. Novel imaging techniques such as ultrasound shear wave elastography may help to improve diagnostic accuracy. METHODS: Continent women were recruited from outpatient gynecology offices from a tertiary medical system. Participants underwent ultrasound evaluation with measurement of the shear wave velocity (SWV) of the bladder neck (BN). SWV was used to determine the Young's modulus of the bladder neck. The median bladder neck stiffness was calculated and univariate and step-wise and backward multivariate logistic regression analyses were used to identify significant patient characteristics associated with bladder neck stiffness above or below the median. RESULTS: Fifty-seven women underwent SWE of the bladder; 12 were excluded, and 45 were included in the analysis. The median bladder neck stiffness of the study population was 22 (17.1-28.2) kPa. Age greater than 45 years was associated with a bladder neck stiffness above the median, OR 8.39, p < 0.001. Having no vaginal deliveries was also associated with a bladder neck stiffness greater than 22 kPa, unadjusted OR 4.76 (95 % CI 1.41-20.0, p = 0.012). Bladder volume and bladder neck thickness were not significantly associated with bladder neck stiffness above or below the median. CONCLUSION: Trans-abdominal shear wave elastography can be used to quantitatively assess bladder neck stiffness. This technique may potentially be useful for evaluating chronic urinary retention.