Hernandez-Meza G, et al. - In this study from 1995 to 2015, investigators examined 254,257 subjects (with otolaryngology surgery) to assess the relation of volume (surgical and center) and patient determinants with 30-day readmission after inpatient otolaryngology surgery using the Statewide Planning and Research Cooperative System (SPARCS). They observed 6% of the 30-day readmission rate. They recognized Medicaid insurance, Medicare insurance, bottom quartile income, patient comorbidities measured by the Charlson Comorbidity Index (CCI), length of stay (LOS), rhinology, laryngology, and head and neck cancer procedures as readmission predictive factors. They noticed that high-volume surgeons were protective of 30-day readmission as compared to low volume. They did not find an association of hospital volume with readmissions. They recorded wound- (18%), respiratory- (12%), cardiovascular- (8%), and volume- (7%) related disorders as the frequent causes of readmission.