Key result
Repeat heart transplantation successfully rescues refractory cardiogenic shock from recurrent giant cell myocarditis.
Why the study?
Giant cell myocarditis is an aggressive condition that can recur post-orthotopic heart transplantation, presenting management challenges where optimal treatment strategies remain uncertain.
Case Report (n=1)
No
This unique case highlights the complexity of managing recurrent giant cell myocarditis post-heart transplant and demonstrates that a second heart transplant can be a successful treatment strategy for resulting end-stage heart failure.
Answers are grounded in this paper and cite their sources.
May support re-transplantation in refractory recurrent giant cell myocarditis; leaves open durability, selection criteria, and recurrence prevention in larger studies.
Background: Giant cell myocarditis (GCM) is a severe and rapidly progressing condition that can lead to end-stage heart failure. We present a case of a 51-year-old male with a history of orthotopic heart transplantation (OHTx) for GCM, who experienced recurrent GCM in the allograft, leading to progressive heart failure and the need for a second heart transplant. Case summary: A 51-year-old male with a history of OHTx for GCM presented with rapidly worsening heart failure symptoms. Despite initial stability, he deteriorated to cardiogenic shock and required intensive support. His clinical course was complicated by recurrent COVID-19 infections, worsened left ventricular ejection fraction, and withdrawal of guideline-directed medical therapy. Imaging showed extensive scar burden, and subsequent investigations ruled out coronary artery disease. With declining functional status and worsening cardiogenic shock, he was re-listed for OHTx and successfully underwent a second heart transplant. Discussion: Giant cell myocarditis poses challenges due to its aggressive nature. Early, aggressive immunosuppression and mechanical circulatory support are crucial. The recurrence rate of GCM post-OHTx is notable, often within the first year, and the optimal immunosuppressive regimen remains uncertain. In this case, GCM recurrence following OHTx led to continued deterioration despite treatment, necessitating a second heart transplant. This unique case emphasizes the complexity of managing recurrent GCM post-OHTx.
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AlJohani et al. (2023) conducted a case report in Recurrent giant cell myocarditis (n=1). Second orthotopic heart transplantation was evaluated. In a 51-year-old man, recurrent giant cell myocarditis after an initial heart transplant led to refractory cardiogenic shock that was successfully managed with a second heart transplantation.
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