44例室性心律失常患者^(99m)Tc-MIBI心肌灌注显像分析

Clinical implications of ^(99m)Tc-MIBI myocardial perfusion imaging for 44 cases with ventricular arrhythmias

目的 探讨99mTc -MIBI心肌灌注显像对室性心律失常患者心肌缺血诊断的临床应用价值。方法 对 4 4例室性心律失常患者进行99mTc -MIBI心肌灌注显像分析 ,并根据其结果将患者分为缺血组和非缺血组。结果 缺血组频发室性心律失常的发生率 (70 0 % )明显高于非缺血组 (33.3% ) ,两组相比有显著性差异 (P <0 .0 5 ) ;对于复杂性心律失常 (室性心动过速 )缺血组 (30 0 % )亦明显高于非缺血组 (12 .5 % ) ;缺血组经抗血小板聚集 (阿司匹林 ) ,纠正心肌缺血 (硝酸酯类药物 )等治疗 ,效果显著 (95 %症状消失或减轻 )。结论 99mTc -MIBI心肌灌注显像对判断室性心律失常患者是否存在心肌缺血有临床价值。

Objective To investigate the clinical significance of 99m Tc-MIBI myocardial perfusion imaging in the patients with ventricular arrhythmias.Methods 44 patients with ventricular arrhythmia were studied by 99m Tc-MIBI myocardial perfusion imaging and divided thereby into 2 groups of ischaemia and non-ischaemia.Results In the ischaemia group,the incidence of frequent ventricular arrhymias(70.0%) was higher than the non-ischaemia group(33.3%) (P<0.05), ventricular tachycardias (30.0%) was also higher than the non-ischaemia group(12.5%) and anti-ischaemia treatment was more effective.Conclusion 99mTc-MIBI myocardial perfusion imaging is of predictive value for ventricular arrhythmia caused by myocardial ischaemia.