Background
Acute appendicitis is the most common indication for emergency general surgery (EGS) in the US. We examined the role of acute care surgery (ACS) on interventions and outcomes for acute appendicitis at a national sample of university-affiliated hospitals.
Methods
We surveyed senior surgeons responsible for EGS coverage at University HealthSystems Consortium (UHC) hospitals, representing >90% of university-affiliated hospitals in the US. The survey elicited data on resources allocated for EGS during 2013. Responses were linked to UHC outcomes data by unique hospital identifiers. Patients treated at hospitals reporting hybrid models for EGS coverage were excluded. Differences in interventions and outcomes between patients with acute appendicitis treated at ACS hospitals vs. hospitals with a general surgeon on-call model (GSOC) were analyzed using univariate comparisons and multivariable logistic regression models adjusted for patient demographics, clinical acuity, and hospital characteristics.
Results
We found 122 hospitals meeting criteria for analysis where 2,565 patients were treated for acute appendicitis. 48% of hospitals had an ACS model (N =1414), and 52% had a GSOC model (N=1151). Hospitals with ACS models were more likely to treat minority patients with greater severity of illness than GSOC models. Patients treated at ACS hospitals were more likely to undergo laparoscopic appendectomy. In multivariable modeling of patients who had surgery (N=2,258), patients treated at ACS hospitals had 1.86 [95%CI 1.23,2.80] greater odds of undergoing laparoscopic appendectomy.
Conclusion
In an era when laparoscopic appendectomy is increasingly accepted for treating uncomplicated acute appendicitis, particularly in low risk patients, it is concerning that patients treated at GSOC model hospitals are more likely to undergo traditional open surgery despite having less severity of illness at the time of presentation. Furthermore, hospitals with ACS are functioning as safety net hospitals for vulnerable patients with acute appendicitis.
Level of Evidence
III