Mycobacterium chimaera After Aortic Valve Replacement Causing Aortic Rupture and Prosthetic Valve Endocarditis.

Shan, Shubham David; Bozso, Sabin Joseph; Akioyamen, Leo; MacArthur, Roderick · Ann Thorac Surg · 2021

case_report · Level V

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Abstract

A 20-year-old man with severe aortic insufficiency received a mechanical aortic valve replacement. Afterward he subsequently presented with an aortic root dissection, pseudoaneurysm, and prosthetic valve endocarditis requiring surgical reinterventions twice with a positive Mycobacterium chimaera tissue culture despite prolonged antimycobacterial therapy. This is the first reported clinical case of M chimaera in Western Canada and the first with M chimaera-associated aortic dissection and pseudoaneurysm.

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