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Presenter: Guenter, Kirste, Freiburg, Germany
Authors: Irene Schmidtmann, Carl-Ludwig Fischer-Fröhlich, Marcus Kutschmann, Sylke R Zeissig, Nils R Frühauf, Frank Polster, Gunter Kirste
The Joint Impact of Donor and Recipient Parameters on the Outcome of Heart Transplantation in Germany after Donor Selection
Irene Schmidtmann3, Carl-Ludwig Fischer-Fröhlich1, Marcus Kutschmann2, Sylke R Zeissig3, Nils R Frühauf5, Frank Polster4, Gunter Kirste1
1Region Baden-Württemberg, Deutsche Stiftung Organtransplatnation, Stuttgart, Germany, 2BQS Institute for Quality and Patient Safety, Düsseldorf, Germany, 3Institute for Medical Biometrics, Epidemiology and Informatics (IMBEI), Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Mainz, Germany, 4Deutsche Gesellschaft für Gewebespende gGmbH, Hannover, Germany, 5Landesärztekammer Niedersachsen, Hannover, Germany
Background: Organ shortage in heart-transplantation (HTx) results in increased use of grafts from donors with substantial risk factors. It is discussed controversially which donor characteristics may be detrimental. Therefore, we evaluated the joint impact of donor and patient related risk factors in HTx on patient survival by multiple analysis in a nationwide multicenter study after donor selection was carried out.
Methods: The research database consists of data concerning hearts donated and transplanted in Germany between 2006 and 2008 as provided by Deutsche Stiftung Organtransplantation and the BQS-Institute. Multiple Cox regression (significance level 5%, hazard ratio [95%-CI]) was conducted (n=774, recipient age ≥18 years).
Results: Survival was significantly decreased by donor-age (1.021 [1.008-1.035] per year), non-traumatic cause of death (1.481 [1.079-2.034]), Troponin >0.1 ng/ml (2.075 [1.473-2.921]), ischemia time (1.197 [1.041-1.373] per hour), recipient-age (1.017 [1.002-1.031] per year) and in recipients with pulmonary vascular resistance ≥320 dyn*s*cm-5 (1.761 [1.115-2.781]), with ventilator dependency (3.174 [2.211-6.340]) or complex previous heart surgery (1.763 [1.270-2.449]).
Conclusion: After donor selection had been conducted, multiple Cox regression revealed donor-age, -non-traumatic cause of death, -Troponin and ischemia time as well as recipient-age, -pulmonary hypertension, -ventilator dependency and -previous complex heart surgery as limiting risk factors concerning patient survival.
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