Journal
JOURNAL OF HEART AND LUNG TRANSPLANTATION
Volume 34, Issue 8, Pages 1073-1081Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.healun.2015.03.008
Keywords
center volume; lung transplantation; outcomes; pediatrics; survival analysis; risk-factor analysis; center-type
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BACKGROUND: Institutional operative volume has been shown to impact outcomes of various procedures including lung transplantation (LTx). We sought to determine whether this holds true with pediatric LTx by comparing outcomes of adult centers (with larger overall volume) to those of pediatric centers (with smaller volume but more pediatric-specific experience). METHODS: A retrospective analysis of the Organ Procurement and Transplant Network data was performed. Centers were categorized as either adult (LTx volume predominantly in adult patients), high-volume pediatric (HVP, >= 4 LTxs/year), or low-volume pediatric (LVP, <4 LTxs/year). Outcomes were compared in younger children (<12 years) and older children and adolescents (12 to 17 years). RESULTS: In total, 1,046 pediatric LTxs were performed between 1987 and 2012 at 62 centers (adult 51 [82%], HVP 3 [5%], LVP 8 [13%]). Although adult centers had larger overall LTx volume, their pediatric experiences were severely limited (median 1/year). In younger children, HVP centers were significantly better than LVP centers for patient survival (half-life: 7.3 vs 2.9 years, p = 0.002). Similarly, in older children and adolescents, HVP centers were significantly better than adult centers for patient survival (half-life: 4.6 vs 2.5 years, p = 0.001). Of note, even LVP centers tended to have longer patient survival than adult centers (p = 0.064). Multivariable analysis identified adult centers as an independent risk factor for graft failure (hazard ratio: 1.5, p < 0.001) as with LVP (hazard ratio: 1.3, p = 0.0078). CONCLUSIONS: Despite larger overall clinical volume, outcomes among pediatric LTx recipients in adult centers are not superior to those of pediatric centers. Not only center volume but pediatric-specific experience has an impact on outcomes in pediatric LTx. (C) 2015 International Society for Heart and Lung Transplantation. All rights reserved.
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