Predictors of Emergency Room Visits After Ambulatory Breast Cancer Surgery in the Medicare Population.

BACKGROUND: Emergency department (ED) overuse is a large contributor to healthcare spending in the USA. We examined the rate of and risk factors for ED visits following outpatient breast cancer surgery. PATIENTS AND METHODS: Using linked data from the Surveillance, Epidemiology, and End Results (SEER) program and Medicare, we identified women who underwent curative breast cancer surgery between 2003 and 2015. Our outcome of interest was ED visits within 30 days of surgery. Multivariate regression was used to evaluate the odds of ED visit while controlling for clinical and socioeconomic variables. Secondary analyses assessed admission from the ED as well as costs. RESULTS: Of the 78,060 included patients, 5.1% returned to the ED, of which only 29.8% required hospital admission. Rate of ED visits increased with patient age. A higher percentage of Black patients returned to the ED compared with white patients (7.0% versus 5.0%, p < 0.001). Patients with higher income were less likely to visit the ED compared with those with lower income (OR 0.76, p < 0.001). Predictors of ED visits included: being unmarried (OR 1.18, p < 0.001), having stage 2 (OR 1.20, p < 0.001) or stage 3 cancer (OR 1.38, p < 0.001), and those with Charlson comorbidity score of 1 (OR 1.39, p < 0.001) or ≥ 2 (OR 2.29, p < 0.001). CONCLUSION: While a substantial number of patients return to the ED following outpatient breast surgery, most do not require hospital admission, which indicates that a large proportion of these visits could have been avoided. We identified several clinical and socioeconomic predictors of postoperative ED visits, which will aid in the development of patient risk profiling tools.

Area Deprivation Index and Rurality in Relation to Financial Toxicity among Breast Cancer Surgical Patients: Retrospective Cross-Sectional Study of Geospatial Differences in Risk Profiles.

BACKGROUND: Financial toxicity (FT) depicts the burden of cancer treatment costs and is associated with lower quality of life and survival in breast cancer patients. We examined the relationship between geospatial location, represented by rurality and Area Deprivation Index (ADI), and risk of FT. STUDY DESIGN: A single-institution, cross-sectional study was performed on adult female surgical breast cancer patients using survey data retrospectively collected between January 2018 and June 2019. Chart reviews were used to obtain patient information, and FT was identified using the COmprehensive Score for Financial Toxicity questionnaire, which is a validated instrument. Patients' home addresses were used to determine rurality using the Rural Urban Continuum Codes and linked to national ADI score. ADI was analyzed in tertiles for univariate statistical analyses, and as a continuous variable to develop multivariable logistic regression models to evaluate the independent associations of geospatial location with FT. RESULTS: A total of 568 surgical breast cancer patients were included. Univariate analyses found significant differences across ADI tertiles with respect to race/ethnicity, marital status, insurance type, education, and rurality. In multivariable analysis, advanced cancer stage (odds ratio [OR] 2.26, 95% CI 1.15 to 4.44) and higher ADI (OR 1.012, 95% CI 1.01 to 1.02) were associated with worsening odds of FT. Increasing age (continuous) (OR 0.976, 95% CI 0.96 to 0.99), married status (vs unmarried) (OR 0.46, 95% CI 0.30 to 0.70), and receipt of bilateral mastectomy (OR 0.56, 95% CI 0.32 to 0.96) were protective of FT. CONCLUSIONS: FT was significantly associated with areas of greater socioeconomic deprivation as measured by the ADI. However, in adjusted analyses, rurality was not significantly associated with FT. ADI can be useful for preoperative screening of at-risk populations and the targeted deployment of community-based interventions to alleviate FT.

Cost-effective Decisions in Detecting Silent Common Bile Duct Gallstones During Laparoscopic Cholecystectomy.

OBJECTIVE: To evaluate the cost-effectiveness of routine intraoperative ultrasonography (IOUS), cholangiography (IOC), or expectant management without imaging (EM) for investigation of clinically silent common bile duct (CBD) stones during laparoscopic cholecystectomy. BACKGROUND: The optimal algorithm for the evaluation of clinically silent CBD stones during routine cholecystectomy is unclear. METHODS: A decision tree model of CBD exploration was developed to determine the optimal diagnostic approach based on preoperative probability of choledocholithiasis. The model was parameterized with meta-analyses of previously published studies. The primary outcome was incremental cost per quality-adjusted life year (QALY) gained from each diagnostic strategy. A secondary outcome was the percentage of missed stones. Costs were from the perspective of the third party payer and sensitivity analyses were performed on all model parameters. RESULTS: In the base case analysis with a prevalence of stones of 9%, IOUS was the optimal strategy, yielding more QALYs (0.9858 vs 0.9825) at a lower expected cost ($311 vs $574) than EM. IOC yielded more QALYs than EM in the base case (0.9854) but at a much higher cost ($1122). IOUS remained dominant as long as the preoperative probability of stones was above 3%; EM was the optimal strategy if the probability was less than 3%. The percentage of missed stones was 1.5% for IOUS, 1.8% for IOC and 9% for EM. CONCLUSIONS: In the detection and resultant management of CBD stones for the majority of patients undergoing laparoscopic cholecystectomy, IOUS is cost-effective relative to IOC and EM.

Attributable cost of obesity in breast surgery: a matched cohort analysis.

BACKGROUND: The purpose of this study was to determine the economic impact of obesity on patients undergoing mastectomy and breast conservation (BC) for breast cancer. METHODS: An analysis of female patients greater than or equal to 18 years undergoing mastectomy and BC for breast cancer between 2004 and 2010 using the Nationwide Inpatient Sample was conducted. RESULTS: Of 55,903 patients in our study (49,985 mastectomy, 5,918 BC), 3,308 patients (5.92%) were obese. After propensity score matching, the cost for obese patients was higher at $1,826 (P < .0001) for mastectomy and $1,702 for BC (P < .0001). These costs were not significantly associated with overall complications and length of stay for mastectomy in the matched comparison group and not associated with overall complications and minimally associated with longer length of stay in the BC group. CONCLUSION: By controlling for other patient factors, this study shows that obesity is attributable to a significantly higher cost for both BC (29%) and mastectomy (23%).