硝酸甘油介入^(99m)Tc-MIBI心肌显像研究梗死区心肌活力与临床因素的关系

To investigate the clinical factors and myocardial viability in myocardial infarction by nitroglycerin infusion in 99m Tc MIBI myocardial tomography

目的 :探讨心肌梗死 ( MI)病人心肌存活情况的临床相关因素。方法 :对 62例 MI病人行静态和硝酸甘油 ( NTG)介入 SPECT心肌显像。结果 :NTG介入后 64 .5 % ( 40 /62 )的病人心肌灌注改善 ,即有存活心肌存在。经统计学处理 ,中年组比老年组有较多的存活心肌 ( P <0 .0 5 ) ,有不稳定型心绞痛的 MI病人有存活心肌的比率高于稳定型心绞痛或无心绞痛者 ( P<0 .0 5 )。结论 :根据MI病人的临床情况可初步估计其心肌活力。

Objective:To evaluate the clinical factors correlated with myocardial viability in patients with myocardial infarction (MI).Method:62 patients with MI underwent routine rest 99m Tc MIBI myocardial tomography imagings,24~48 hours later,nitroglycerin (NTG) infusion tomography were performed in all patients.Result:The survival myocardium were found in 40/62 ( 64.5 %) patients.Statistical analysis showed that there were more survival myocardium in the middle aged group and unstable angina pectoris group than in old aged group and stable or no angina pectoris group (P< 0.05 ) after MI.Conclusion:It may be possible to assess the myocardial viability in patients with MI according to clinical correlated factors.