Aortic prosthesis re-replacement due to concealed stenosing subvalvular pannus ring.
In a patient with mechanical aortic valve prosthesis, a high transvalvular gradient was detected 16 years following the procedure, without echocardiographic clues for the underlying etiology. Intraoperatively, a stenosing pannus ring was found and excised. This pathological entity should be considered in cases of unclear transprosthetic gradient and early operation should be encouraged in symptomatic patients.
Emmert
M
M
Division of Thoracic and Cardiovascular Surgery, Hannover Medical School, Hannover, Germany.
Kofidis
T
T
Didilis
V
V
Haverich
A
A
Klima
U
U
D001024:Aortic Valve Stenosis / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods*; D018450:Disease Progression; D005260:Female; D006801:Humans; D008875:Middle Aged; D011474:Prosthesis Design; D012086:Reoperation