Scott S M, Sethi G K, Flye M W, Takaro T
Ann Surg. 1976 Aug;184(2):174-8. doi: 10.1097/00000658-197608000-00007.
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.
在43例使用早期型号马戈文无缝合主动脉瓣膜假体的患者中，有7例（16%）因血栓栓塞和球瓣变异而进行了再次手术。所有患者再次手术后均存活，无重大并发症。当使用尺寸合适的插入工具时，拆除无缝合假体并不困难。留下了一个瘢痕化的瓣环，有利于新假体的缝合。这些早期型号的致残性血栓栓塞发生率（42%）和提动头故障发生率（21%）很高。当这些并发症发生时，建议更换假体以防止死亡或复发性栓塞事件。
