摘要
报道儿童症状性心肌桥（SMB）1例并进行文献复习。提示心肌桥（MB）是一种先天性冠状动脉解剖异常，在儿童中十分罕见，发病机制倾向于壁冠状动脉受压致狭窄、痉挛、粥样硬化。主要表现胸痛、恶性心律失常、晕厥、心脏骤停、心肌梗死等，确诊依靠心脏影像学检查；需长期口服β受体阻滞剂治疗，无效者手术或植入除颤器，预后较佳，合并肥厚性心肌病者病情重，死亡率高。
A child case of acute myocardial ischemia induced by symptomatic myocardial bridge （SMB） was reported and relevant literatures were reviewed in this article. The case and literatures indicate that myocardial bridge is a rare congenital coronary artery anomaly in children. The pathogenesis may be related to stenosis, spasm, arteriosclerosis of coronary artery because of myocardial bridge compression during systole. Clinical manifestations include chest pain, malignant arrhythmia, syncope, cardiac arrest and myocardial infarction. The diagnosis of myocardial bridge is based on cardiac imaging. SMB patients should be first treated with β-adrenergic; if ineffective, surgical treatment or implantable automated cardiac defibrillator should be chosen. The patients complicated with hypertrophic cardiomyopathy have worse conditions with high mortality.
出处
《中华全科医师杂志》
2013年第6期479-483,共5页
Chinese Journal of General Practitioners
关键词
心肌桥
心肌缺血
Myocardial bridge
Myocardial ischemia
