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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
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1 to 1 of 1 Research Studies DisplayedKalata S, Schaefer SL, Nuliyahu U
Low-volume elective surgery and outcomes in Medicare beneficiaries treated at hospital networks.
This cross-sectional study’s objective was to quantify low-volume surgery and associated outcomes within hospital networks. This study used Medicare Provider Analysis and Review data to examine fee-for-service beneficiaries aged 66 to 99 years who underwent 1 of 10 elective surgical procedures (abdominal aortic aneurysm repair, carotid endarterectomy, mitral valve repair, hip or knee replacement, bariatric surgery, or resection for lung, esophageal, pancreatic, or rectal cancers) in a network hospital from 2016 to 2018. Hospital volume for each procedure (calculated with the use of National Inpatient Sample data) was compared with yearly hospital volume standards for that procedure recommended by The Leapfrog Group. The authors analyzed primary outcomes which were postoperative complications, 30-day readmission, and 30-day mortality, stratified by the volume status of the hospital and network type. Secondary outcome was the availability of a different high-volume hospital within the same network or outside the network and its proximity to the patient (based on hospital referral region and zip code). In all, data were analyzed for 950,079 Medicare fee-for-service beneficiaries (average age 74.4 years; 621,138 females and 427,931 males) who underwent 1,049,069 procedures at 2469 hospitals within 382 networks. Of these networks, almost 100% [380 (99.5%)] had at least 1 low-volume hospital performing the elective procedure of interest. In 79.8% of procedures that were performed at low-volume hospitals, there was a hospital that met volume standards within the same network and hospital referral region located a median (IQR) distance of 29 (12-60) miles from the patient's home. In adjusted analyses, postoperative outcomes were inferior at low-volume hospitals compared with hospitals meeting volume standards, with a 30-day mortality of 8.1% at low-volume hospitals vs 5.5% at hospitals that met volume standards.
AHRQ-funded; HS028606.
Citation: Kalata S, Schaefer SL, Nuliyahu U .
Low-volume elective surgery and outcomes in Medicare beneficiaries treated at hospital networks.
JAMA Surg 2024 Feb; 159(2):203-10. doi: 10.1001/jamasurg.2023.6542.
Keywords: Surgery, Medicare, Hospitals, Outcomes