February 23, 2012

Institutional volume and the effect of recipient risk on short-term mortality after orthotopic heart transplant


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This contemporary study provides further insight into the past observations of an association between center volume and surgical outcomes. The Index for Mortality Prediction After Cardiac Transplantation (IMPACT), from the data in the United Network for Organ Sharing (UNOS) registry was used to risk stratify patients. Mean annual institutional volume ranged from 0.2 OHT procedures/y to 76 OHT procedures/y, with a median of 10 OHT procedures/y. High-risk patients had higher mortality when undergoing OHT at low volume centers and lower mortality when undergoing OHT at higher-volume centers. These differences dissipated among lower-risk recipients.

Cardiac Transplantation

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