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文献报道,急性下壁心梗时,Ⅱ导联R/Q比值有一定的临床应用价值。现收集整理我院病历资料、心电图等比较齐全急性下壁心梗24例,按WHO标准确诊。发病后常规12导联心电图检查,每日1～2次,测第7、8、9三天心电图Ⅱ导联R/Q比值,以次分为三组:(1)R/Q>2,(2)R/Q=1～2,(3)R/Q<1;分别为10例,4例及10例。将Ⅱ导联呈QS型者列为R/Q<1组内。同时比较三组心电图Ⅱ导联抬高的ST段恢复到等电位线的时间(h)。住院期间详细记录心绞痛发生情况。按Killip分级法对左心功能进行分级得分,最后以R/Q级>2,R/Q≤2两组进行比较。
Reported in the literature, acute inferior myocardial infarction, Ⅱ lead R / Q ratio has some clinical value. Now collect and organize medical records in our hospital, ECG and other relatively complete 24 cases of acute inferior myocardial infarction, according to WHO standards. Routine 12-lead electrocardiogram after onset, 1 to 2 times a day, measured on the 7th, 8th and 9th days electrocardiogram Ⅱ lead R / Q ratio, divided into three groups: (1) R / Q> (2) R / Q = 1 ~ 2, (3) R / Q <1; 10 cases, 4 cases and 10 cases respectively. The Ⅱ leads were QS type were listed as R / Q <1 group. At the same time, the time of recovering to the equipotential line from the elevated ST segment of the Ⅱ leads of three groups of electrocardiogram (h) was compared. During hospitalization detailed angina pectoris occurred. According to the Killip grading method, the left ventricular function was graded, and finally the R / Q grade> 2 and R / Q≤2 were compared.