儿童心力衰竭中的全环主动脉瓣功能不全和双重交替。
Pancycle aortic incompetence and double alternans in pediatric heart failure.
机构信息
Department of Cardiothoracic and Vascular Anaesthesia, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.
Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.
出版信息
Ann Card Anaesth. 2023 Apr-Jun;26(2):232-234. doi: 10.4103/aca.aca_194_21.
A 12-year-old boy presented with bicuspid aortic valve, severe aortic regurgitation, and dilated dysfunctional left ventricle in heart failure. He underwent aortic valve replacement with a 23 mm TTK Chitra heart valve prosthesis (tilting disk). He was gradually weaned off milrinone and noradrenaline in the intensive care. Echocardiography showed severe left ventricular dysfunction with an ejection fraction of 24%. The radial pulse was regular and of normal volume but exactly half that of the heart rate. Evaluation of the rhythm and echocardiography revealed an interesting hemodynamic phenomenon with double alternans.
一位 12 岁男孩因二叶式主动脉瓣、严重主动脉瓣反流和心力衰竭导致左心室扩张功能障碍而就诊。他接受了主动脉瓣置换术，使用了 23 毫米 TTK Chitra 心脏瓣膜假体（倾斜碟片）。他在重症监护病房逐渐停用米力农和去甲肾上腺素。超声心动图显示严重的左心室功能障碍，射血分数为 24%。桡动脉脉搏规则，且正常，但仅为心率的一半。对节律和超声心动图的评估显示出一种有趣的血流动力学现象，即双重交替。
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