Publications

Trials of enhanced recovery programs suggest that multimodality pain regimens improve outcomes after colorectal surgery. We sought to determine whether patients receiving postoperative multimodality pain regimens would have shorter lengths of stay without an associated increase in readmission rate as compared to those receiving opioid-based pain regimens. Retrospective cohort study of adults who underwent elective colorectal surgery between January 1, 2006, and December 31, 2012, in a national hospital network participating in the Premier Perspective database. Patients were grouped into multimodality or opioid-based using postoperative medication charges. Primary outcome measures included length of stay and 30-day readmission rate. Among 91,936 patients, 38 per cent received multimodality pain regimens and 61 per cent received opioid-based regimens. After adjustment for patient and surgical characteristics, there was no difference in length of stay or cost, odds of readmission were 1.2 (95% confidence interval = 1.2-1.3, P < 0.001), and odds of mortality were 0.8 (95% confidence interval = 0.6-0.9, P < 0.001) in the multimodality group compared to nonopioid sparing. Our results were consistent in secondary analyses using propensity matching. Fewer than half of patients undergoing elective colorectal surgery in our cohort received multimodality pain regimens, and receipt of these medications was associated with mixed benefits in terms of length of stay, readmission, and mortality.

Global health education (GHE) continues to be a growing initiative in many medical schools across the world. This focus is no longer limited to participants from high-income countries and has expanded to institutions and students from low- and middle-income settings. With this shift has come a need to develop meaningful curricula through engagement between educators and learners who represent the sending institutions and the diverse settings in which GHE takes place. The Bellagio Global Health Education Initiative (BGHEI) was founded to create a space for such debate and discussion and to generate guidelines towards a universal curriculum for global health. In this article, we describe the development and process of our work and outline six overarching principles that ought to be considered when adopting an inclusive approach to GHE curriculum development.

Breast cancer is the most common solid organ malignancy and the most frequent cause of cancer death among women worldwide. Previous research has yielded insights into its genetic etiology, but there remains a gap in the understanding of genetic factors that contribute to risk, and particularly in the biological mechanisms by which genetic variation modulates risk. The National Cancer Institute's "Up for a Challenge" (U4C) competition provided an opportunity to further elucidate the genetic basis of the disease. Our group leveraged the seven datasets made available by the U4C organizers and data from the publicly available UK Biobank cohort to examine associations between imputed gene expression and breast cancer risk. In particular, we used reference datasets describing the breast tissue and whole blood transcriptomes to impute expression levels in breast cancer cases and controls. In trans-ethnic meta-analyses of U4C and UK Biobank data, we found significant associations between breast cancer risk and the expression of RCCD1 (joint p-value: 3.6x10-06) and DHODH (p-value: 7.1x10-06) in breast tissue, as well as a suggestive association for ANKLE1 (p-value: 9.3x10-05). Expression of RCCD1 in whole blood was also suggestively associated with disease risk (p-value: 1.2x10-05), as were expression of ACAP1 (p-value: 1.9x10-05) and LRRC25 (p-value: 5.2x10-05). While genome-wide association studies (GWAS) have implicated RCCD1 and ANKLE1 in breast cancer risk, they have not identified the remaining three genes. Among the genetic variants that contributed to the predicted expression of the five genes, we found 23 nominally (p-value < 0.05) associated with breast cancer risk, among which 15 are not in high linkage disequilibrium with risk variants previously identified by GWAS. In summary, we used a transcriptome-based approach to investigate the genetic underpinnings of breast carcinogenesis. This approach provided an avenue for deciphering the functional relevance of genes and genetic variants involved in breast cancer.