Circ: Cardiovascular Interventions:婴儿和儿童中使用Melody瓣膜进行外科房室瓣置换

2018-11-22 xiangting MedSci原创

对于瓣环发育不全的患者,Melody瓣膜是外科房室瓣置换的一个可行选择。

对于儿科房室瓣膜病患者,尺寸15mm以下人工瓣膜置换的选择很有限。根据右室流出道中支架牛颈静脉移植物(Melody瓣膜)的成功经验,Melody瓣膜已被改进用于房室功能障碍儿科患者的外科瓣膜置换,目的在于根据儿童成长,随后可在导管实验室中进行瓣膜扩张。

这是一项多中心、回顾性队列研究,纳入在北美和欧洲17个参与地点接受Melody瓣膜房室瓣置换的患者,其中包括68例二尖瓣(n=59)或三尖瓣(n=9)置换的患者,年龄中位数8个月(范围,3天至13岁)。植入时的尺寸中位数为14 mm(范围9-24 mm)。术后即刻,所有患者的瓣膜均具有低梯度。15例患者死亡;3例患者接受了移植;19例患者因不良结局需要再次手术,不良结局包括瓣膜移出(n=16)、左室流出道梗阻(n=1)、永久性起搏器植入(n=1)和瓣周漏修复(n=1)。25例患者接受了41次基于导管的球囊扩张,中位梯度显著下降(P<0.001),而返流等级无明显增加。植入后12个月,累积发病率分析表明,55%的患者预计会免于死亡、心脏移植、结构瓣膜恶化或瓣膜置换。

对于瓣环发育不全的患者,Melody瓣膜是外科房室瓣置换的一个可行选择。该瓣膜表现出可接受的短期功能,并且随孩子成长,可进行基于导管的扩张。然而,尽管早期瓣膜功能良好,但患者仍然面临死亡和结构性瓣膜恶化的风险。必须对设计和植入技术进行改进,以减少并发症和延长耐用性。

原始出处:
Francesca R. Pluchinotta. Surgical Atrioventricular Valve Replacement With Melody Valve in Infants and Children. Circ: Cardiovascular Interventions. 16 November 2018.

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    2018-12-10 quxin068
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    2019-09-14 yxch48
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