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首页> 外文期刊>International Scholarly Research Notices >What Is Really a Nonobstructive Hypertrophic Cardiomyopathy? The Importance of Orthostatic Factor in Exercise Echocardiography
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What Is Really a Nonobstructive Hypertrophic Cardiomyopathy? The Importance of Orthostatic Factor in Exercise Echocardiography

机译：什么是一个非结构性肥厚性心肌病？锻炼超声心动图中的原位因素的重要性

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The authors report the case of a 23-year-old girl with nonobstructive hypertrophic cardiomyopathy evaluated by resting echocardiography. The patient complained of syncope after playing basketball. The patient was submitted to treadmill exercise echocardiogram, and she exercised for 9 minutes in standard Bruce protocol. The left ventricular outflow gradient did not occur at peak workload; however she developed intraventricular gradient greater than 100 mmHg after exercise in orthostatic position. There was fall in arterial pressure, and the patient was then put in supine position. The authors suggest the possible role of exercise stress echo in symptomatic patients with no significant gradient at baseline, as well as maintenance in orthostatic position after exercise, as an important stress factor. This can disclose the occurrence of left ventricular outflow tract obstruction that should not be detected in other way and has potential relevance in the patient's symptoms understanding.
机译：作者举报了通过休息超声心动图评估的非机构性肥厚性心肌病的23岁女孩的案例。患者在打篮球后抱怨晕厥。患者被提交给跑步机运动超声心动图，她在标准布鲁斯方案中锻炼9分钟。峰值工作量不会发生左心室流出梯度;然而，在锻炼位置后，她在直立位置后开发了大于100 mmHg的脑内梯度。有动脉压下降，然后患者处于仰卧位。作者提出了运动应力回声在基线上没有显着梯度的症状患者的可能作用，以及在运动后的直立位置维持，作为重要的压力因素。这可以公开左心室流出道梗阻的发生，该梗阻不应以其他方式检测到，并且在患者的症状中具有潜在的相关性。

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