Could giving whole blood in the field improve survival in patients with traumatic hemorrhage?

A randomized trial in the New England Journal of Medicine found prehospital whole blood transfusion did not improve 30-day mortality over standard component therapy in traumatic hemorrhage, supporting current transfusion protocols. A large population-based study showed patients with positive fecal occult blood tests who did not complete follow-up colonoscopy had significantly higher colorectal cancer incidence and more advanced-stage disease. Finally, a study in Nature Medicine of nearly 15,000 individuals found antibiotic exposure reduced gut microbial diversity for up to 4–8 years, with clindamycin and fluoroquinolones causing the most persistent disruption.