Heart Center, King Faisal Specialist Hospital & Research Center, Zahrawi St, Al Maather, Al Maazer, Riyadh 12713, Saudi Arabia.
J Invasive Cardiol. 2021 Mar;33(3):E229. doi: 10.25270/jic/20.00155.
A 4-year-old girl with congenital mitral regurgitation status post mechanical mitral valve replacement (MVR) using a 16 mm Carbomedics valve (LivaNova) at the age of 5 months underwent a redo MVR using a 21 mm aortic prosthesis implanted in an inverted position for progressed increased mitral valve gradient due to pannus formation. Post operatively, echocardiogram showed good mitral valve prosthesis function with severe depressed left ventricular function (ejection fraction, 19%) and markedly segmental dyskinesia in the lateral wall. Her diagnosis of compression to the proximal dominant left circumflex artery and subsequent percutaneous coronary intervention are outlined here.
一位 4 岁女孩，5 个月大时因先天性二尖瓣反流，行机械二尖瓣置换术（MVR），使用 16 毫米 Carbomedics 瓣（LivaNova）。因瓣周组织增生导致二尖瓣跨瓣压差增加，于 4 年前行二尖瓣再次置换术，使用 21 毫米主动脉假体，呈倒置位植入。术后，超声心动图显示二尖瓣假体功能良好，但左心室功能严重抑制（射血分数 19%），外侧壁明显节段性运动障碍。现介绍其因近端优势回旋支受压导致的诊断和随后的经皮冠状动脉介入治疗。
