Introduction
There is wide variation in mortality across hospitals for cancer surgery. While higher rates of mortality are commonly ascribed to high-risk resections, the impact on more common operations is unclear. We sought to evaluate causes of mortality following colon cancer operations across hospitals.
Methods
49 American College of Surgeons Commission on Cancer (ACS-CoC) hospitals were selected for participation in a CoC special study. We ranked hospitals using a composite measure of mortality and performed onsite chart reviews. We examined patient characteristics and mortality following colon resections at very high mortality (HMH) and very low mortality (LMH) hospitals (2006–2007).
Results
We identified 3,025 patients who underwent surgery at 19 LMHs (n = 1,006) and 30 HMHs (n = 2,019). There were wide differences in risk-adjusted mortality between HMHs and LMHs (9.3% vs. 2.4%; P<0.001). Compared to LMHs, HMHs had more patients who were black (11.2% vs. 6.5%; P<0.001), had ≥2 comorbidities (22.7% vs. 18.9%; P<0.05), ASA class 4–5 (11.9% vs. 5.3%; P<0.001), and were functionally dependent (13.9% vs. 8.8%; P<0.001). Rates of any complication were similar in HMH’s vs. LMH’s (OR 1.29, 95% CI: 0.85 – 1.95). But, for those experiencing complications, case fatality rates were statistically significantly higher in HMHs vs. LMHs (OR 3.74, 95% CI: 1.59 – 8.82).
Conclusions
There is significant variation in mortality across hospitals for colon cancer surgery, despite similar perioperative morbidity. This finding reflects a need for improved surgical decision-making to enhance outcomes and quality of care at these hospitals.