Transcatheter mitral valve replacement in rheumatic mitral stenosis under 3-dimensional printing

Yu Mao, Ping Jin, Yang Liu, Jian Yang
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Abstract

Rheumatic mitral stenosis has a large patient base and a certain incidence in developing countries. Percutaneous balloon valvuloplasty is one of the main treatments for such patients, but this method is limited by the degree of mitral regurgitation. Here, we describe a 74-year-old patient with rheumatic mitral stenosis without calcification observed by transthoracic echocardiography and computed cardiac tomography, and no calcification was found in the mitral annulus. The score of Society of Thoracic Surgeons was 14.2%, with Wilkins score of 12. Under the guidance of 3-dimensional printing technology, transcatheter mitral valve replacement was successfully performed. Before discharge, the stability and function of the bioprosthesis were confirmed.

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三维打印下风湿性二尖瓣狭窄的经导管二尖瓣置换术
风湿性二尖瓣狭窄患者人数众多,在发展中国家也有一定的发病率。经皮球囊瓣膜成形术是此类患者的主要治疗方法之一,但这种方法受到二尖瓣反流程度的限制。在此,我们描述了一名 74 岁的风湿性二尖瓣狭窄患者,经胸超声心动图和计算机心脏断层扫描观察,二尖瓣环内未发现钙化。胸外科医师协会评分为 14.2%,Wilkins 评分为 12 分。在三维打印技术的指导下,成功实施了经导管二尖瓣置换术。出院前,确认了生物瓣膜的稳定性和功能。
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