Key result
Surgical replacement of a malfunctioning prosthetic aortic valve with a mechanical prosthesis restores normal function.
Why the study?
Mechanical prosthetic valve dysfunction can arise from various endogenous and exogenous causes, with intermittent malfunction being a rare and unusual presentation.
Case Report (n=1)
No
Highlights a rare case of intermittent mechanical aortic valve dysfunction 18 years post-implantation.
Endogenous mechanical valve dysfunction is now rare; supports etiology-based classification but leaves open prospective validation of diagnostic impact.
Mechanical valve dysfunction can be classified as endogenous and exogenous according to the etiology.Endogenous dysfunctions are caused by valve damage or defect, which has become extremely rare with the improvement of design, materials, and manufacture and detection methods in vitro.Exogenous causes include inappropriate selection of prosthesis, technical issues or other complications, such as thrombosis, excessive pannus overgrowth into the prosthetic rim, excessively long knot end, residual chordate tendineae stuck in the prosthetic sewing ring, extremely long residual papillary muscles in left ventricle or calcified tissues under the prosthesis hampering leaflet mobility.We are reporting a case of intermittent malfunction of prosthetic aortic valve [21 mm Medtronic hall mechanical prosthesis] in a 37-year-old female, who underwent Aortic Valve Replacement (AVR) eighteen year back for aortic valve endocarditis and severe Aortic Regurgitation (AR).
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Hakim İrfan Showkat (2018) conducted a case report in Intermittent Aortic Prosthetic Valve Dysfunction (n=1). Surgical valve replacement was evaluated. Surgical replacement of the malfunctioning prosthetic aortic valve with a new mechanical prosthesis resulted in normal valve function and resolution of symptoms.
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