Day, Courtney

ABSTRACT Background and Objectives Pancreatic ductal adenocarcinoma (PDAC) remains highly lethal, but the contribution of nonbiological factors to long‐term survival is unclear. We evaluated demographic, socioeconomic, clinical, treatment, and care‐delivery factors associated with 3‐year survival and whether these associations persisted at 5 years. Methods National Cancer Database patients with stage I–III PDAC diagnosed from 2012 to 2022 were analyzed using multivariable logistic regression adjusted for treatment pathway. Results Among 57,053 patients, 51,071 were eligible for a 3‐year analysis, and 12,205 (23.9%) survived. Compared with chemotherapy alone, surgery with chemotherapy (OR, 7.12; 95% CI, 6.64–7.63) and surgery alone (OR, 3.84; 95% CI, 3.49–4.23) had the strongest associations with survival. Younger age, lower comorbidity, Asian race, Spanish/Hispanic ethnicity, private insurance, lower grade, body or tail location, and lower nodal burden were independently associated with survival. Black race and treatment timing were not significant after adjustment. Findings were directionally consistent at 5 years. Conclusion Demographic, socioeconomic, and clinical factors independently influence 3‐year survival in PDAC. These findings underscore the need to complement biologic and therapeutic advances with structural interventions, such as insurance expansion and improved access to high‐quality centers, to mitigate disparities and improve outcomes in this highly lethal cancer.

Abstract Objective To evaluate the clinical value of breast MRI in radiation-associated angiosarcoma of the breast (RAASB) for assessing disease extent at diagnosis and after neoadjuvant therapy compared with clinical examination and surgical pathology. Methods This IRB-approved retrospective study included 25 patients with breast MRIs between1995 and 2020. MRI estimated disease extent was compared to clinical exam and surgical pathology. MRI findings were evaluated for additional disease and impact on clinical management. Agreement between MRI and clinical assessment of disease was evaluated using Cohen’s kappa statistic. Results Baseline MRI demonstrated moderate agreement with clinical disease extent (Cohen’s κ = 0.44; 95% CI, 0.14-0.75). Thirteen of 24 (54%) of MRIs reflected clinical exam, 4/24 (17%) MRIs underestimated disease, and 5/24 (21%) MRIs overestimated disease. Baseline MRI changed surgical management in 4/24 (17%). In 8 patients who proceeded directly to surgery, MRI reflected pathology in 6/8 (75%). In 10 patients with post-neoadjuvant MRI, 4/10 (40%) pathology and MRI extent were similar, 5/10 (50%) MRI overestimated disease, and 1/10 (10%) MRI underestimated disease. Conclusion MRI has clinical value in assessing RAASB with the potential for significantly altering surgical management. In this small cohort, post-neoadjuvant MRI demonstrated limited additional clinical value. Larger studies are needed to define the optimal role and timing of post-neoadjuvant MRI. Advances in knowledge Baseline MRI detected additional disease not identified on initial clinical exam in 5/24 (21%) and changed surgical management in 4/24 (17%). Although baseline MRI demonstrated moderate agreement with clinical examination, post-neoadjuvant MRI frequently overestimated residual disease when compared with final pathology.

AbstractBackgroundVenous thromboembolism (VTE) chemoprophylaxis in breast surgery remains controversial. In 2012, we instituted a practice change of routine chemoprophylaxis for patients with invasive cancer undergoing mastectomy. Herein, we report the effects of this on rates of VTE and hematoma.MethodsOur 30‐day rates of VTE and hematoma requiring reoperation among patients with mastectomy since the practice change were retrospectively collected from National Surgical Quality Improvement Program (NSQIP). The subsequent 5‐year data (2012‐2017) was compared with historic NSQIP data (2006‐2010). We utilized information from our 30‐day follow‐up databank to assess patients not sampled by NSQIP.ResultsAfter the practice change, the heparin prophylaxis rate rose from 19.5% to 95.6% (P < .001) and the VTE rate fell from 0.8% to 0% (P = .30). There was no significant change in reoperative hematoma rate (P = .39). The majority of the current NSQIP patient population (93.1%) had a Caprini score of 5 or greater. Among 663 patients obtained from 30‐day postoperative follow‐up, there were 2 VTE (0.3%) and 7 (1.1%) reoperations for hematoma.ConclusionsThe practice change resulted in an increase of VTE chemoprophylaxis without significant change in hematoma incidence. Although not statistically significant, VTE incidence decreased. This supports the use of standardized VTE chemoprophylaxis in this population and warrants further study.