A form of community-based treatment in which acute medical problems are actively addressed in the patient’s home by trained health care specialists in place of similar care provided in-hospital. It has been used to treat both medical issues (e.g., congestive heart failure, COPD, or end-of-life) as well as postoperative recuperation. Although hospital-at-home care has been proposed as a low-cost alternative to inpatient care, its cost structure is not clearly more favorable than inpatient treatment.