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Heart and heart-liver transplantation in patients with hemochromatosis.
International Journal of Cardiology 2017 October 2
BACKGROUND: Hemochromatosis predisposes to dilated or restrictive cardiomyopathy which can progress to end-stage heart failure, requiring the use of advanced heart therapies including heart (HT) and heart liver (HLT) transplantation. Little is known about the characteristics and outcomes of these patients.
METHODS AND RESULTS: We queried the United Network for Organ Sharing (UNOS) registry for all patients listed for HT or HLT for a diagnosis of 'hemochromatosis' between 1987 and 2014. Waitlist and post-transplantation outcomes were compared between patients with hemochromatosis (HT vs HLT) and other etiologies. Of the 81,356 adults listed for heart transplantation, 23 patients with hemochromatosis were identified (16 listed for HLT; and 7 listed for HT). Compared with other etiologies, HC patients were younger (39 vs 51years, p<0.0001), and more likely to need inotropes (56.5% vs 25.6%, p=0.003) and mechanical ventilation (13% vs 3.4%, p=0.041). Cumulative hazards of waitlist mortality or delisting were higher in hemochromatosis patients than for other etiologies of heart failure (p<0.001). There were 4 HT and 4 HLT during the study period. Post-transplantation, patients with HC had a 1- and 2-year cumulative survival of 88% and 75%, respectively.
CONCLUSIONS: Both HT and HLT are viable options for patients with hemochromatosis. Patients with hemochromatosis are younger with increased wait-list mortality compared with other etiologies.
METHODS AND RESULTS: We queried the United Network for Organ Sharing (UNOS) registry for all patients listed for HT or HLT for a diagnosis of 'hemochromatosis' between 1987 and 2014. Waitlist and post-transplantation outcomes were compared between patients with hemochromatosis (HT vs HLT) and other etiologies. Of the 81,356 adults listed for heart transplantation, 23 patients with hemochromatosis were identified (16 listed for HLT; and 7 listed for HT). Compared with other etiologies, HC patients were younger (39 vs 51years, p<0.0001), and more likely to need inotropes (56.5% vs 25.6%, p=0.003) and mechanical ventilation (13% vs 3.4%, p=0.041). Cumulative hazards of waitlist mortality or delisting were higher in hemochromatosis patients than for other etiologies of heart failure (p<0.001). There were 4 HT and 4 HLT during the study period. Post-transplantation, patients with HC had a 1- and 2-year cumulative survival of 88% and 75%, respectively.
CONCLUSIONS: Both HT and HLT are viable options for patients with hemochromatosis. Patients with hemochromatosis are younger with increased wait-list mortality compared with other etiologies.
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