Key result
Early models of Magovern sutureless aortic valve prostheses were associated with high rates of disabling thromboembolism (42%) and poppet failure (21%), requiring reoperation in 16% of patients.
Why the study?
Is reoperation safe for patients with early models of Magovern sutureless aortic valve prostheses experiencing complications?
Observational (n=43)
Is reoperation safe for patients with early models of Magovern sutureless aortic valve prostheses experiencing complications?
Early models of the Magovern sutureless aortic valve prosthesis have high rates of thromboembolism and poppet failure, but reoperation to replace them can be performed safely.
Answers are grounded in this paper and cite their sources.
Early Magovern valves warrant vigilant surveillance in survivors; case reports leave open optimal reoperation timing and protocols.
Reoperation was performed in seven (16%) of 43 patients with early models of Magovern sutureless aortic valve prostheses, because of thromboembolism and ball variance. All patients survived reoperation with no major complications. Removal of the sutureless prosthesis was not difficult when an insertion tool of proper size was used. A scarred annulus remained which was favorable for the suturing of a new prosthesis. The incidence of disabling thromboembolism (42%) and poppet failure (21%) is high with these early models. When these complications occur, replacement of the prosthesis is recommended to prevent death or recurrent embolic episodes.
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Scott et al. (1976) conducted an observational in Patients with early models of Magovern sutureless aortic valve prostheses (n=43). Early models of Magovern sutureless aortic valve prostheses was evaluated on Reoperation due to thromboembolism and ball variance. Early models of Magovern sutureless aortic valve prostheses were associated with high rates of disabling thromboembolism (42%) and poppet failure (21%), requiring reoperation in 16% of patients.
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