Surgical research often utilizes multivariable regression to evaluate causal relationships between variables, but there is usually little explanation of the decision-making regarding which variables were controlled for. We propose that directed acyclic graphs (DAGs)-a formal logic tool that illustrates connections between variables-should be used to define and communicate variable relationships to readers and other audiences. While literature in epidemiology and other medical fields has recently started to incorporate DAGs more, they are still seldom seen in surgical publications.
View Article and Find Full Text PDFBackground: Tourniquet use for extremity hemorrhage control has seen a recent increase in civilian usage. Previous retrospective studies demonstrated that tourniquets improve outcomes for major extremity trauma (MET). No prospective study has been conducted to date.
View Article and Find Full Text PDFA near-peer teaching experience for upper-level medical students could help prepare them for surgical residency by providing specific education opportunities and exposure to the field of surgery. Five medical students were selected to be near-peer teachers (NPTs) in gross anatomy, and then they reflected on their experiences. The NPTs spent the majority of effort in a teaching role, and reported improved NTS, anatomy knowledge, and dissection skills.
View Article and Find Full Text PDFTrauma Surg Acute Care Open
June 2021
Background: Patients undergoing surgery for oesophageal cancer are at high risk of malnutrition due to pathology and neoadjuvent therapy. This study sought to determine if oesophageal cancer patients undergoing oesophagectomy achieve superior clinical outcomes when preoperative nutritional counselling is performed.
Methods: Oesophageal cancer patients undergoing oesophagectomy were retrospectively divided into cohorts based on those who received ( = 48) and did not receive ( = 58) preoperative nutritional counselling.