Health Affairs

Health Affairs, 26, no. 1 (2007): 162-168 doi: 10.1377/hlthaff.26.1.162 © 2007 by Project HOPE	New Online   Getting Health Reform Done   After the State of the Union   Incremental Reform   E-Health in Developing World   Most-Read Articles in 2009

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U.S. Trends In CABG Hospital Volume: The Effect Of Adding Cardiac Surgery Programs

Chad T. Wilson, Elliott S. Fisher, H. Gilbert Welch, Andrea E. Siewers and F. Lee Lucas

Hospital coronary artery bypass graft (CABG) volume is inversely related to mortality—with low-volume hospitals having the highest mortality. Medicare data (1992–2003) show that the number of CABG procedures increased from 158,000 in 1992 to a peak of 190,000 in 1996 and then fell to 152,000 in 2003, while the number of hospitals performing CABG increased steadily. Predictably, the proportion of CABG procedures performed at low-volume hospitals increased, and the proportion in high-volume hospitals declined. An unintended consequence of starting new cardiac surgery programs is declining CABG hospital volume—a side effect that might increase mortality.

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