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目的探讨下壁急性心肌梗死(AMI)合并J波的临床特点。方法回顾性分析87例下壁AMI患者心电图,观察出现J波与否的冠脉造影结果及窦房阻滞、窦性停搏、房室传导阻滞、室性心律失常的发生率。结果有J波组冠脉狭窄程度重于无J波组(P<0.05);窦房阻滞、窦性停搏、房室传导阻滞及室性心律失常的发生率均高于无J波组(P<0.05)。结论下壁AMI合并J波者冠脉狭窄程度较严重并累及窦房结及房室结的血液供应,易发生室性心律失常,病情较重,对判断近期预后有重要的指导意义。
Objective To investigate the clinical features of inferior wall acute myocardial infarction (AMI) combined with J wave. Methods The electrocardiogram of 87 patients with AMI in the inferior wall was retrospectively analyzed. The incidence of coronary artery stenosis, sinus arrest, atrioventricular block and ventricular arrhythmia were observed with J wave or not. Results The degree of coronary artery stenosis in J wave group was higher than that in non-J wave group (P <0.05). The incidence of sinoatrial block, sinus arrest, atrioventricular block and ventricular arrhythmia were higher than those without J wave Group (P <0.05). Conclusions The stenosis of coronary stenosis is more serious in the inferior AMI patients with J waves, and the blood supply to the sinoatrial node and atrioventricular node is involved. Ventricular arrhythmia is prone to occur and the condition is serious. It is of important guiding significance for judging the short-term prognosis.