ANALYSIS OF AXIS DEVIATION IN PATIENTS WITH MYOCARDIAL INFARCTION: A HOSPITAL BASED PROSPECTIVE STUDY

Dr. Uzma Khan, *Jyoti Memoalia and Dr. Arindam Ghosh

ABSTRACT

Aim: The present study focuses on the patients who have a first MI and who deserve consideration as a special group. The present study was undertaken to correlate ECG with clinical outcome giving special attention to QRS axis deviation in patients presenting with the first attack of myocardial infarction. Material and method: A total of 100 MI cases were chosen admitted to the extensive coronary care unit in the Department of Cardiology, SPS Hospital, Ludhiana. A control group consisted of 100 subjects with no past or present cardiac illness. The first ECG (ECG I) was taken at the time of admission and the second ECG (ECG II) was taken 90 min after thrombolysis or in patients without thrombolysis, ECG was taken on day 2. The third ECG (ECG III) was taken just before discharge or on day 3. All statistical analyses were performed using SPSS Version 22.0 (Chicago, Ill., USA). Results: Left and right axis deviation was 26% and 3% in the study subjects respectively and the same was normal 11%, and 1% in the control subjects with statistically significant difference. Totally, 15 subjects (15%) developed LVF, of whom 10 were males and 5 were females. On analysis of axis shift between ECG’s I and II, 49.5% of the subjects had a minimal axis shift of ≤10° and 15.5% had a marked axis shift of ≥30.0°. Conclusion: The statistically significant difference between the MEA of the study subjects when compared with the controls is predictable, as MI produces deviation of the MEA.

Keywords: MI, ECG, Axis deviation, Heart attack.