Oliver K Jawitz1, Marat Fudim2, Vignesh Raman3, Vanessa Blumer4, Kadir Caliskan5, Adam D DeVore2, Robert J Mentz2, Carmelo Milano3, Osama Soliman6, Joseph Rogers2, Chetan B Patel4. 1. Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina; Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina. Electronic address: oliver.jawitz@duke.edu. 2. Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina; Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, North Carolina. 3. Division of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, North Carolina. 4. Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, North Carolina. 5. Department of Cardiology, Erasmus University, Rotterdam, Netherlands. 6. Department of Cardiology, College of Medicine, Nursing and Health Science, National University of Ireland Galway, Galway, Ireland.
Abstract
BACKGROUND: Patients with end-stage heart failure are increasingly being bridged to heart transplant (BTT) with mechanical circulatory support; however the association between a left ventricular assist device (LVAD) BTT strategy and posttransplant renal outcomes is unclear. The aim of this study was to analyze the association of LVAD BTT with the development of posttransplant renal failure using a large national registry. METHODS: We queried the 2009 to 2018 United Network for Organ Sharing registry for all adults undergoing first-time heart or heart-kidney transplantation and stratified patients by use of pretransplant durable LVAD. The primary outcome of interest was posttransplant renal failure, which was evaluated with multivariable logistic regression. RESULTS: Of 18,307 patients meeting inclusion criteria, 7887 were (43%) and 10,420 were not (57%) BTT with an LVAD. BTT patients had slightly better baseline renal function (estimated glomerular filtration rate, 68.7 vs 65.8 mL/min, P < .001) and were less likely to receive a heart-kidney transplant (2.7% vs 4.8%, P < .001). On multivariable logistic regression, LVAD BTT strategy was not independently associated with posttransplant renal failure (odds ratio, 1.13; 95% confidence interval, 0.86-1.49). Similarly LVAD BTT among patients with preoperative renal dysfunction was not associated with posttransplant renal failure (adjusted odds ratio, 1.40; 95% confidence interval, 0.91-2.18). CONCLUSIONS: BTT with an LVAD does not appear to be associated with worse renal outcomes regardless of baseline renal function. Furthermore, an LVAD BTT strategy in patients with chronic kidney disease may enable clinicians to identify candidates suitable for isolated heart transplantation without increasing their risk for posttransplant renal failure.
BACKGROUND:Patients with end-stage heart failure are increasingly being bridged to heart transplant (BTT) with mechanical circulatory support; however the association between a left ventricular assist device (LVAD) BTT strategy and posttransplant renal outcomes is unclear. The aim of this study was to analyze the association of LVAD BTT with the development of posttransplant renal failure using a large national registry. METHODS: We queried the 2009 to 2018 United Network for Organ Sharing registry for all adults undergoing first-time heart or heart-kidney transplantation and stratified patients by use of pretransplant durable LVAD. The primary outcome of interest was posttransplant renal failure, which was evaluated with multivariable logistic regression. RESULTS: Of 18,307 patients meeting inclusion criteria, 7887 were (43%) and 10,420 were not (57%) BTT with an LVAD. BTTpatients had slightly better baseline renal function (estimated glomerular filtration rate, 68.7 vs 65.8 mL/min, P < .001) and were less likely to receive a heart-kidney transplant (2.7% vs 4.8%, P < .001). On multivariable logistic regression, LVAD BTT strategy was not independently associated with posttransplant renal failure (odds ratio, 1.13; 95% confidence interval, 0.86-1.49). Similarly LVAD BTT among patients with preoperative renal dysfunction was not associated with posttransplant renal failure (adjusted odds ratio, 1.40; 95% confidence interval, 0.91-2.18). CONCLUSIONS:BTT with an LVAD does not appear to be associated with worse renal outcomes regardless of baseline renal function. Furthermore, an LVAD BTT strategy in patients with chronic kidney disease may enable clinicians to identify candidates suitable for isolated heart transplantation without increasing their risk for posttransplant renal failure.
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