• Stacie Deiner, Benjamin Westlake, and Richard P Dutton.
• Department of Anesthesiology, Icahn School of Medicine, Mount Sinai, New York, New York; Department of Neurosurgery, Icahn School of Medicine, Mount Sinai, New York, New York; Department of Geriatrics and Palliative Care, Icahn School of Medicine, Mount Sinai, New York, New York.
• J Am Geriatr Soc. 2014 May 1; 62 (5): 829-35.

ObjectivesTo determine whether procedures, hospitals visited, and complications would differ according to decade in elderly adults and from those of younger adults.DesignRetrospective cohort study.SettingThe Anesthesia Quality Institute National Anesthesia Clinical Outcomes Registry (NACOR) is the largest database of anesthesia cases from academic and community hospitals and includes all insurance and facility types across the United States.ParticipantsEight million six hundred thirty-two thousand nine hundred seventy-nine cases from January 2010 to March 2013 were acquired. After exclusion of individuals younger than 18, nonapplicable locations, and brain death, 2,851,114 remained and were placed into age categories (18-64, 65-69, 70-79, 80-89, ≥ 90).MeasurementsParticipant, surgical, anesthetic, and hospital descriptors and short-term outcomes (major complications, mortality at <48 hours).ResultsThe largest number of older adults had surgery in medium-sized community hospitals. The oldest age group (≥ 90) underwent the smallest range of procedures; hip fracture, hip replacement, and cataract procedures accounted for more than 35% of all surgeries. Younger old adults underwent these procedures plus a significant proportion of spinal fusion, cholecystectomy, and knee surgery. Older adults had greater mortality and more complications than younger adults. Participants undergoing exploratory laparotomy had the greatest likelihood of death in any age category except 90 and older, in which small bowel resection predominated. The proportion of emergency surgery and the mortality associated with emergency surgery was 30% higher in the oldest group (≥ 90) than in adults aged 18 to 64.ConclusionThis article reports the pattern of surgical procedures, complications, and mortality found in NACOR, which is one of the few data sets that contains data from community hospitals and individuals with all types of insurance. Because the outcomes portion of the data set is under development, it is not possible to investigate the relationship between hospital type and complications or mortality, but this study underscores the magnitude of geriatric surgery that occurs in community hospitals as an area for future outcomes studies.© 2014, Copyright the Authors Journal compilation © 2014, The American Geriatrics Society.

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