室上性心动过速的治疗方法探讨

The Treatment of Supraventricular Tachycardia

阵发性室上性心动过速(PSVT)简称室上速。大多数心电图表现为QRS波群形态正常、RR间期规则的快速心律。大部分室上速由折返机制引起,患者通常无器质性心脏病表现,不同性别与年龄均可发生。心动过速发作突然起始与终止,持续时间各不相同。症状包括心悸、胸闷、焦虑不安、头晕,少见有晕厥、心绞痛、心力衰竭与休克者。症状轻重取决于发作时心室率快速的程度以及持续时间,也与疾病的严重程度有关系。如果心室率发作时过快,使心输出量与脑血流量突减或心动过速突然终止,窦房结未能及时恢复自律性导致心搏停顿,都可以导致晕厥。体检心尖区第一心音强度恒定,心律绝对规则。急性发作期治疗包括刺激迷走神经、药物治疗、食管心房调搏术、直流电复律。预防复发可用药物及导管消融技术。。

Paroxysmal supraventricular tachycardia （PSVT） is hereinal^er referred to as supraventricular tachycardia. Most of the electrocardiogram performance for normal QRS complex and the fast rhythm of the heart of RR interphase rules. Most supraventricular tachycardia is caused by exhumation mechanism, and patients usually have no organic heart disease, and the patients of different gender and age all can happen. Tachycardia attacks suddenly beginning and ending, and the duration of each are not identical. The symptoms usually include heart palpitations, chest distress, anxiety, dizziness, but rarely with syncope, angina pectoris, heart failure and shock. The symptom severity depends on the attack degree of rapid ventricular rate and duration, and also has relations with the severity of the disease. If the ventricular rate occurs too quickly, it can case the cardiac output and cerebral blood flow reduction or tachycardia suddenly terminated, and sinoatrial node failed to restore self-discipline cause cardiac standstill, all of them can case syncope. So when the patient have a medical, the first heart sound intensity will be constant, and the rhythm of the heart is well-regulated. The treatment of acute phase includes stimulate the vagus nerve, drug therapy, esophageal atrial cardiac surgery and de cardioerter.besids, we can use dru^s or catheter ablation techniques to prevent the relapse.