Published online Aug 26, 2019. doi: 10.4330/wjc.v11.i8.209
Peer-review started: January 18, 2019
First decision: January 26, 2019
Revised: August 2, 2019
Accepted: August 6, 2019
Article in press: August 7, 2019
Published online: August 26, 2019
Processing time: 217 Days and 4.4 Hours
Aortic stenosis is one of the rare valvular complications in a transplanted heart. Over the past 8 years, transcatheter approach for aortic valve replacement (TAVR) has been slowly evolving to be the preferred approach in these patient population when compared to the surgical approach. We report a second case in the United States with successful transfemoral minimal approach with minimal sedation for TAVR in a heart transplant recipient 19 years post transplantation for severe symptomatic calcified aortic stenosis.
We present a case of 73-year-old male who has undergone successful minimal approach transcatheter aortic valve replacement in an allograft heart. Patient had received orthotopic heart transplantation 19 years ago for non-ischemic cardiomyopathy. Follow up transthoracic echocardiograms as per routine protocol did not show any aortic valve disease until 15 years post transplantation. Aortic valve was noted to be mildly sclerotic at that time and gradually progressed to severe symptomatic aortic stenosis over the next 4 years. Patient had complaints of worsening shortness of breath that limited his functional capacity. Overall his post heart transplantation period has been mostly uneventful except for allograft non occlusive vasculopathy and aortic stenosis. His Society of Thoracic Surgery risk score was 12.205% and he was considered to be a high-risk surgical candidate by surgeon. Decision was made to undergo transcatheter aortic valve replacement.
With the improved survival of these patients, we think it is time to look into pathophysiology of valvular disease in transplant heart recipients. Some other unanswered questions include, underlying donor and recipient risk factors for valvular diseases in heart transplant recipients.
Core tip: We report a second case in the United States with successful transfemoral minimal approach with minimal sedation for transcatheter approach for aortic valve replacement in a heart transplant recipient. We believe, with the increase of number of reported cases with valvular diseases in heart transplant patients, it is time for further research in valvular disease in allograft heart recipients.