Understanding the burden of colorectal cancer in a three-county rural region of Michigan: an ecological analysis of incidence, mortality, and risk factors.

PURPOSE: Our aim was to identify whether known colorectal cancer (CRC) risk factors contribute to the high CRC burden in Michigan's Thumb region, a 3-county agricultural rural area in eastern Michigan. METHODS: We examined county-level invasive CRC incidence and mortality rates (2000-2017) from the Michigan Cancer Surveillance Program and county-level data on CRC risk factors from publicly available datasets. Prevalence of CRC risk factors in the Thumb region were compared to Michigan's other rural and urban regions using ANOVA (Analysis of Variance) tests. Multivariable linear regression models with stepwise selection were used to assess whether living in the Thumb region was associated with increased CRC incidence, mortality, and late-stage diagnoses after accounting for other risk factors. RESULTS: Living in the Thumb region (ß = 10.4, p = 0.0003), obesity (ß = 36.9, p = 0.04), and an unhealthy food environment (ß = - 2.7, p = 0.003) were associated with higher CRC incidence. Smoking (ß = 67.3, p < 0.0001), being uninsured (ß = - 29.9%, p = 0.03), living in the Thumb region (ß = 2.47, p = 0.03), lower colonoscopy screening (ß = - 0.14, p = 0.01), and older age (ß = 0.11, p = 0.006) were associated with higher CRC mortality. The percent of late-staged CRC diagnoses was significantly lower in the Thumb region than other rural and urban areas of the state (52.9%, 58.3%, and 54.6%, respectively, p = 0.03). CONCLUSION: Findings suggest that living in Michigan's Thumb region is associated with higher CRC incidence and mortality compared to Michigan's other rural and urban regions, even after controlling for known risk factors. More studies on individual-level demographic, environmental, tumor, and treatment characteristics (e.g., treatment differences, water quality, pesticide use) are needed to further characterize these findings.

Recurrence and survival after curative-intent treatment for colorectal liver metastases: Implications for adjuvant liver-directed regional chemotherapy.

BACKGROUND: This study investigates tumor recurrence patterns and their effect on postrecurrence survival following curative-intent treatment of colorectal liver metastases (CRLM) to identify those who stand to benefit the most from adjuvant liver-directed therapy. METHODS: This is a retrospective analysis of all patients that underwent liver resection and/or ablation for CRLM between 2007 and 2019. Postrecurrence survival was compared between recurrence locations. Risk factors for liver recurrence were sought. RESULTS: The study included 227 patients. Majority were treated with resection (71.0%) while combination resection/ablation (18.9%) and ablation alone (11.0%), were less common. At a median follow-up of 3.0 years, recurrence was observed in 151 (66.5%) patients. Of those, liver, lung, and peritoneal recurrence were most common at 66.9%, 49.6%, and 9.2%, respectively. Median postrecurrence survival after liver, lung, and multisite recurrence was 39.6-, 68.4-, and 33.6 months, respectively. High tumor grade (p < 0.014), perineural invasion (p = 0.002), and N0 node status (p = 0.017) of primary tumor correlated with liver recurrence on multivariate analysis. CONCLUSIONS: Tumor grade, perineural invasion, and N0 node status of the primary tumor are associated with increased risk of liver recurrence after CRLM resection and represent a target population that may benefit the most from adjuvant liver-directed regional chemotherapy.

Tumor and serum levels of per- and polyfluoroalkyl (PFAS) in hepatobiliary and gastrointestinal malignancy.

BACKGROUND: There has been significant controversy over the carcinogenic potential of per- and polyfluoroalkyl substances (PFAS). STUDY DESIGN: A total of 37 serum and tumor samples from patients with hepatobiliary and gastrointestinal malignancy were tested for 24 analytes of PFAS. RESULTS: At least one PFAS analyte was found in 97% (36/37) of the serum samples and 41% (15/37) of the tumor samples. The serum Perfluorooctanesulfonic acid (PFOS) levels were significantly higher than the national levels (6.77 ng/mL vs. 5.20 ng/mL; p = 0.038). Patients with PFOS in tumor samples had significantly higher levels in serum when compared to tumor samples without PFOS (9.4 ng/mL vs 5.5 ng/mL; p = 0.015). CONCLUSIONS: Patients were found to have significantly higher levels of PFOS when compared to the reported national levels. Additionally, the patients with higher serum levels of PFOS also had tumor positive samples.

Lost in Translation: An OSCE-Based Workshop for Helping Learners Navigate a Limited English Proficiency Patient Encounter.

Introduction: Residents have been known to report a lack of self-efficacy in their ability to provide care for limited English proficiency (LEP) patients. Interpreters must be utilized to help navigate these patient encounters, but many institutions do not have a curriculum focused on utilizing interpreters effectively. Methods: We created a 3-hour workshop for physician learners working with the pediatric population. It included a panel discussion, best-practices presentation, video demonstration, observing scenarios, and pre- and postworkshop objective structured clinical exams (OSCEs). The first OSCE introduced learners to a scenario (4-day-old with jaundice with an LEP parent) where interpreter use was imperative. The second OSCE allowed learners to perform another case (12-year-old with an abscess with an LEP parent) and practice newly obtained skills from the workshop. Both OSCEs were scored using a 16-item yes/no checklist. All pediatric residents filled out an eight-item survey to evaluate the workshop; a subset of that group performed the pre- and postworkshop OSCEs. Results: Forty pediatric residents attended the workshop and completed the survey. The workshop was well received, with the majority of residents stating they would change their current interpreter usage practices. Ten pediatric residents performed the pre- and postworkshop OSCEs; all improved their scores. Discussion: The workshop was effective in improving how residents navigated LEP encounters. It is applicable to learners of all levels who want to improve their communication skills to provide better care for LEP patients and can be tailored to fit the needs of a specific institution.

Recurrence patterns and postrecurrence survival after curative intent resection for pancreatic ductal adenocarcinoma.

BACKGROUND: Pancreatic ductal adenocarcinoma has a high rate of recurrence after resection. We aimed to investigate patterns of recurrence of pancreatic ductal adenocarcinoma to identify opportunities for targeted intervention toward improving survival. METHODS: This was a retrospective analysis of consecutive patients that underwent curative-intent resection for pancreatic ductal adenocarcinoma between 2007 and 2015. Recurrence and survival were analyzed based on site of recurrence. Multiple clinicopathologic factors were calculated for likelihood of site-specific recurrence. RESULTS: The study included 221 patients with median follow-up of 83 months. Median overall and recurrence-free survival was 19 and 13 months, respectively. Recurrence was observed in 71.9% patients. Local recurrence occurred in 16.4%, distant recurrence in 67.3%, and combined in 15.9%. The most common site of distant recurrence was the liver (49.7%) followed by lung (31.8%) and peritoneum (16.6%). Median time to liver recurrence was shortest (5 months, 95% confidence interval 1.7-8.3) and post recurrence survival was poor (4 months, 95% confidence interval 1.9-6.1). Patients with poorly differentiated tumors on pathology were 4.8 times more likely to recur in the liver (odds ratio 4.83, 95% confidence interval 1.7-13.9). CONCLUSION: Liver metastasis after resection of pancreatic ductal adenocarcinoma occurs most frequently, earliest after surgery, and is rapidly fatal. Liver-directed therapies represent a target for future study.