Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Apr;89(4):996-1002.
doi: 10.1177/00031348211049251. Epub 2021 Nov 11.

Hospital Volume of Emergency General Surgery and its Impact on Inpatient Mortality for Geriatric Patients: Analysis From 3994 Hospitals

Darwin Ang  1   2   3   4 , Jonathan Sugimoto  2 , Winston Richards  1   2   3   4 , Huazhi Liu  1   5 , Kyle Kinslow  6 , Mark McKenney  3   6 , Michele Ziglar  5 , Adel Elkbuli  6
Affiliations

Hospital Volume of Emergency General Surgery and its Impact on Inpatient Mortality for Geriatric Patients: Analysis From 3994 Hospitals

Darwin Ang et al. Am Surg. 2023 Apr.

Expression of concern in

  • Expression of Concern.
    [No authors listed] [No authors listed] Am Surg. 2025 Mar;91(3):464-472. doi: 10.1177/00031348241305412. Epub 2025 Jan 10. Am Surg. 2025. PMID: 39791244 Free PMC article. No abstract available.

Abstract

Background: Previous investigations have shown a positive association between hospital volume of operations and clinical outcomes. However, it is unclear whether such relationships also apply to emergency surgery. We sought to examine the association between hospital case volume and inpatient mortality for 7 common emergency general surgery (EGS) operations among geriatric patients.

Methods: This is a population based retrospective cohort study using the Centers of Medicare and Medicaid Services (CMS) Limited Dataset Files (LDS) from 2011 to 2013. The 7 most common emergency surgeries included (1) partial colectomy, (2) small-bowel resection (SBR), (3) cholecystectomy, (4) appendectomy, (5) lysis of adhesions (LOA), (6) operative management of peptic ulcer disease (PUD), and (7) laparotomy with the primary outcome being inpatient mortality. Risk-adjusted inpatient mortality was plotted against operative volume. Subsequently an operative volume threshold was calculated using a best fit regression method. Based on these estimates, high- and low-volume hospitals were compared to examine significance of outcomes. Significance was defined as P-value < .05.

Results: The final cohort comprised of 414 779 patients from 3994 hospitals. The standardized mortality ratio (SMR) for high-volume centers were lower in 6 out of 8 surgeries examined. Small-bowel resection and partial colectomy operations had a significant decrease in mortality based on a volume threshold.

Conclusion: We observed decreased mortality with higher surgical volume for small-bowel resection and partial colectomy operations. Such differences may be related to practice patterns during the perioperative period, as complications related to the perioperative care were significantly lower for high-volume centers.

Keywords: clinician practices; emergency general surgery; hospital protocols; hospital volume; inpatient mortality.

PubMed Disclaimer

LinkOut - more resources