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目的探讨不同心电图表现的急性心肌梗塞（ＡＭＩ）的临床特点。资料和方法依心电图改变将ＡＭＩ４４２例分为Ｑ波心肌梗塞（ＱＭＩ）组（共３２５例，其中ＱＲＳ呈ＱＳ型者４２例、呈Ｑｒ或ＱＲ型者２８３例）和无Ｑ波心肌梗塞（ＮＱＭＩ）组（共１１７例，其中ＳＴ—Ｔ呈弥漫性改变者２８例、呈局限性改变者８９例），就各组ＡＭＩ临床特点进行回顾性分析。结果ＱＭＩ住院期间心功能不全、休克、室性心动过速等并发症发生率及病死率高于ＮＱＭＩ（Ｐ＜０．０１～０．０５）；而就上述并发症发生率及病死率而言，ＱＭＩ中的ＱＳ型高于Ｑｒ或ＱＲ型，ＮＱＭＩ中的弥漫型高于局限型，但ＱＭＩ中的ＱＳ型与ＮＱＭＩ中的弥漫型两者之间比较无显著差异（Ｐ＞０．０５）；梗塞后心绞痛的发生以ＱＭＩ中的Ｑｒ或ＱＲ型和ＮＱＭＩ为多；梗塞延展的发生以ＱＭＩ中的Ｑｒ或ＱＲ型为多。结论心电图改变对估测ＡＭＩ病及预后是一重要指标；弥漫型ＮＱＭＩ在临床上应引起重视。
Objective To investigate the clinical features of acute myocardial infarction (AMI) with different ECGs. Materials and Methods According to the change of electrocardiogram, AMI442 cases were divided into Q wave group (325 cases, QRS QS type was 42 cases, Qr or QR type 283 cases) and Q wave myocardial infarction (NQMI ) Group (a total of 117 cases, including ST-T were diffuse changes in 28 cases, the limitations of 89 cases), the clinical features of each group were retrospectively analyzed. Results QMI hospitalized patients with heart failure, shock, ventricular tachycardia and other complications and mortality was higher than NQMI (P <0.01 ~ 0.05); and the incidence of complications and mortality in terms of , QS in QMI was higher than that in Qr or QR, and diffuse in NQMI was higher than localized. There was no significant difference between QS in QMI and diffuse in NQMI (P> 0.05) . The incidence of post-infarction angina was higher in QMI or QR and NQMI in QMI. The incidence of infarction and extension was mainly Qr or QR in QMI. Conclusions ECG changes are an important index in estimating AMI and prognosis. Diffuse NQMI should be paid more attention in clinic.