Omiunu A, Barinsky GL, Fang CH, et al. - Using the National Surgical Quality Improvement Program (NSQIP) database, researchers conducted this retrospective database analysis to explore the demographic factors and baseline comorbidities that place patients at risk for unplanned admission following endoscopic sinonasal surgery (ESS). Using Current Procedural Terminology codes, all ESS cases were extracted from the NSQIP database from 2010 to 2018. Only cases coded as outpatient, elective, and nonemergent procedures were involved. A total of 971 cases matched the criteria for inclusion, with 274 (28.2%) of these being unexpected admissions. Patients in the unplanned admission group were more likely to be older, male, obese, and have hypertension. Race, smoking, diabetes, and chronic steroid use did not show any significant differences. Older age, male gender, obesity, and higher American Society of Anesthesiologists were all individually linked with unplanned admission following outpatient ESS. Identification of high-risk individuals may help to reduce unplanned hospitalization after ESS.