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PEDIATRICS Vol. 101 No. 6 June 1998, pp. 963-969
Received May 30, 1997; accepted Oct 16, 1997.
,
From the * Department of Health Policy, Management, and
Behavior, State University of New York, University at Albany, Albany,
New York; the Department of Pediatric Cardiology, SUNY Health
Science Center, Syracuse, New York; the § Department of Surgery,
Columbia-Presbyterian Hospital, New York, New York; and the
Department of Pediatrics, University of North Carolina, Chapel Hill,
North Carolina.
Objective. To examine the relationship between annual provider (hospital and surgeon) volume of pediatric cardiac surgery and in-hospital mortality.
Design. Population-based retrospective cohort study using a clinical database.
Setting. The 16 acute care hospitals in New York with certificate of need approval to perform pediatric cardiac surgery.
Patients. All children undergoing congenital heart surgery in New York from 1992 to 1995.
Main Outcome Measures. Risk-adjusted mortality rates for various hospital and surgeon volume ranges. Adjustments were made for severity of illness using logistic regression.
Results. A total of 7169 cases were analyzed. After controlling for severity of preprocedural illness using clinical risk factors, hospitals with annual pediatric cardiac surgery volumes of fewer than 100 had significantly higher mortality rates (8.26%) than hospitals with volumes of 100 or more (5.95%), and surgeons with annual volumes of fewer than 75 had significantly higher mortality rates (8.77%) than surgeons with annual volumes of 75 or more (5.90%).
Conclusions. Both hospital volume and surgeon volume are significantly associated with in-hospital mortality, and these differences persist for both high-complexity and low-complexity pediatric cardiac procedures.
Key words: pediatric cardiac surgery, mortality, hospital volume, surgeon volume.
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