Author Affiliations: Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston (Dr Vaduganathan); and Center for Cardiovascular Innovation, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois (Drs Bonow and Gheorghiade).
What makes 30 days so special? Across disciplines of medicine, this time frame is used to help define response to initial therapies. Oncologists often require 4 weeks of complete response to initial chemotherapy before declaring patients with acute myeloid leukemia to be in remission. The Society of Thoracic Surgeons uses 30-day mortality as a major indicator of cardiac surgical success. In heart failure, 30-day readmission has emerged as a benchmark for reimbursement and an indicator of hospital quality.
Vaduganathan M, Bonow RO, Gheorghiade M. Thirty-Day ReadmissionsThe Clock Is Ticking. JAMA. 2013;309(4):345-346. doi:10.1001/jama.2012.205110