肥厚型心肌病患者晕厥发生的机制和处理对策_胡厚源.ppt
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1、肥厚型心肌病患者 晕厥发生的机制和处理对策,第三军医大学西南医院心内科 胡 厚 源,Hypertrophic cardiomyopathy: a 50th anniversary,In 1958, Donald Teare, a forensic pathologist in London, reported eight cases of sudden death caused by asymmetrical hypertrophy or benign tumour of the heart in the British Heart Journal. ( Teare D. Asymmetric
2、al hypertrophy of the heart in young adults. Br Heart J . 1958;20:18. ),HCM病理生理,Comparison of survival free from HCM-related cardiac death, in patients with obstructive and non-obstructive HCM.,Syncope in hypertrophic cardiomyopathy,Symptoms of impaired consciousness (syncope and presyncope) occur i
3、n 1525% of the patients with HCM. Syncope typically occurs in younger patients with smaller ventricles. Impaired consciousness is often provoked by exercise (either during or after) or by postural change.,Mechanisms for syncope in HCM,Arrhythmia Paroxysmal atrial fibrillation/supraventricular tachyc
4、ardia Complete heart block/sinus node dysfunction Sustained ventricular tachycardia Primary haemodynamic mechanism Left ventricular outflow tract obstruction (LVOTO) Abnormal vascular control mechanisms leading to episodes of hypotension due to inappropriate vasodilatation Hypotension due to impaire
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- 关 键 词:
- 肥厚 心肌 患者 晕厥 发生 机制 处理 对策 胡厚源
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