Transcatheter aortic valve replacement can be successfully performed as an alternative to surgery in young adults with severe radiation-induced aortic stenosis and prohibitively high surgical risk.
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May support TAVR feasibility in radiation-induced AS with high surgical risk; hypothesis-generating and requires larger studies before wider adoption.
A 46-year-old woman known with relapsing Hodgkin's lymphoma diagnosed at age 5, treated with repeated cycles of radiotherapy and chemotherapy, presented with severe symptomatic radiation-induced aortic stenosis. She also had other late sequelae of radiotherapy including thyroid cancer, mediastinal fribrosis and left pulmonary fibrosis with severe restrictive lung disease and a newly diagnosed renal carcinoma. Due to the prohibitively high surgical risk and need for urgent treatment, she underwent successful transcatheter aortic valve replacement with transfemoral implantation of a 23 mm Edwards SAPIEN-XT prosthesis, which was performed without valvuloplasty of the noncalcified fibrotic valve. The final result was excellent with reduction of the transaortic gradient and no residual aortic regurgitation.
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Latib et al. (2012) studied this question.
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