بررسي رابطه يافته هاي الكتروكارديوگرام بيماران مبتلا به انفاركتوس حاد قلبي با پيش آگهي داخل بيمارستاني

Assessment of Electrocardiogram Findings in Patients with Acute Myocardial Infarction and their Correlation with In-Hospital Outcomes

The determination of in-hospital outcome in patients with Acute Myocardial infarction (AMI) is important for choosing the therapeutic method , management , kind of care and duration of hospitalization . Electrocardiogram is a cheap , simple and available method for AMI diagnosis and it will be more valuable if its findings can help to determine in-hospital prognosis and identification of high risk patients . In this study , one hundred patients with AMI were randomly chosen ; fifty of them died in hospital (main group) and he other fifty were discharged alive (control group) . Their demographic data and electrocardiogram findings at the time of admission were extracted . This investigation showed that more patients of the main group , in comparison with the control group , had no sinus rhythm ; their heart Rate > 100 beats/min , P wave amplitude > 1 m.v , QRS duration > 0.12 s. In the main group , the prevalence of ST elevation in anterior and aVR leads were higher than control group . The proportion of patients who had one kind of cardiac block, was higher than other main group . Patients in the main group had higher sum of ST elevation than those of the control group . According to our current study , in parients with AMI , some electrocardiogram findings including Rhythm , Heart Rate , P wave amplitude , QRS duration , Location of ST elevation , high sum of ST elevation and Variety of cardiac blocks are important for determination of in-hospital prognosis .