Nutrition, metabolism, and cardiovascular diseases : NMCD · 2025
Heart and heart-liver transplantation in Amish patients with propionic acidemia.
СтатьяКлинический случайНазвание и аннотация: Перевод в очереди
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Whitehead Evan H, Bennett Jeffrey, Bhat Pavan, Bhattacharya Sanjeeb, Erwin Angelika L, Hoffman Karlee, Hsich Eileen, Kafil Tahir S, Khalil Mazhar, Lee Ran, Mountis Maria M, Rodriguez E Rene, Soltesz Edward G, Tan Carmela, Tong Michael Z, Tramontana Timothy F, Zaki Anthony, Tang W H Wilson
Аннотация
BACKGROUND AND AIM: Propionic acidemia (PA) is a genetic metabolic disorder caused by deficient activity of the enzyme propionyl-CoA carboxylase, resulting in accumulation of toxic metabolites during catabolism of odd-chain fatty acids and branched-chain amino acids. Most PA occurs in compound heterozygotes, typically presenting with metabolic acidosis and seizures in infancy. A milder phenotype of PA is prevalent in the Amish population due to a founder missense variant in PCCB (c.1606 A > G; p.Asn536Asp) and is frequently present as an isolated dilated cardiomyopathy in adolescence.
METHODS AND RESULTS: Here we report our experience with three Amish patients with genetically confirmed PA and end-stage heart failure. While one patient underwent successful heart transplantation with no complications, another developed recurrent cardiogenic shock after transplant due to metabolic decompensation. Based on this experience, a subsequent patient was treated with combined heart/liver transplantation.
CONCLUSIONS: These cases highlight unique challenges in managing patients with metabolic cardiomyopathies and emphasize the importance of a multidisciplinary approach to achieve the best possible outcomes.
METHODS AND RESULTS: Here we report our experience with three Amish patients with genetically confirmed PA and end-stage heart failure. While one patient underwent successful heart transplantation with no complications, another developed recurrent cardiogenic shock after transplant due to metabolic decompensation. Based on this experience, a subsequent patient was treated with combined heart/liver transplantation.
CONCLUSIONS: These cases highlight unique challenges in managing patients with metabolic cardiomyopathies and emphasize the importance of a multidisciplinary approach to achieve the best possible outcomes.