摘要
目的 分析原发性心电疾病患者低血钾的原因，探讨其低血钾与室性心律失常的关系。方法 2003年8月-2005年6月共确定原发性心电疾病患者12例，8例在晕厥后或晕厥发作间歇期存在低钾血症，其中特发性心室颤动（简称室颤）1例，长QT综合征（LQTS）3例，Brugada综合征（BS）3例，多形性室性心动过速（简称室速）1例。结果 8例共检测到低血钾23次，血钾浓度为2．92±0．42（1．8—3．34）mmol／L。4例低血钾可能是室速／室颤的诱因，4例低血钾与室速／室颤的关系不太明确。补钾治疗对3例LQTS与1例多形性室速患者有效，使1例BS患者晕厥发作减少。结论 低血钾是原发性心电疾病患者室性心律失常发生的危险因素，应常规监测血钾浓度并维持其正常。
Objective To analyze the causes of hypokalemia of the patients with primary cardiac electric diseases, and its relation with ventricular arrhythmias. Methods The patients who had ventricular fibrillation （ VF）, syncope or presyncope were submitted to extensive evaluations, 12 patients were diagnosed as primary cardiac electric diseases and 8 cases of them were found with hypokalemia. In these 8 patients, one patient suffered from idiopathic VF, 3 from long QT syndrome, 3 from Brugada syndrome, and the other one from polymorphic ventricular tachycardia （VT）. Results hypokalemia （potassium less than 3.5 retool/L） was measured for 23 times, and serum potassium concentration ranged 1.8 to 3.34 （2.92±0.42） mmol/L in these 8 cases. Hypokalemia might contribute to the occurrence of VT/VF in 4 cases, but it was not clear in the other 4 cases. After correcting the serum potassium concentration, there was no further recurrence of malignant ventricular arrhythmia and syncope in 5 cases. Conclusions In the patients with primary cardiac electric diseases, hypokalemia should be regarded as a risk factor for VT/VF, and it must be monitored closely and kept on normal concentration.
出处
《中国心脏起搏与心电生理杂志》
2006年第1期25-27,共3页
Chinese Journal of Cardiac Pacing and Electrophysiology
