Frequency of Reversibility of Complete Heart Block in Acute Myocardial Infarction

Objective The aim of current study was to evaluate the frequency of reversibility of complete heart block in patients of acute myocardial infarction. Methods Total one hundred and thirty eight patients with complaint of syncope and atypical chest pain presented at emergency ward of Punjab Institute of Cardiology, Lahore. All patients underwent conventional coronary angiogram to roll out the ischemic etiology of underlying bradyarrhythmias. Among them more than 90% patients have mild coronary artery disease and they were kept on medical management. But all patients remained TPM dependant for two weeks which were then treated with permanent pacemakers. Results Results of the current study revealed that the mean age of patients was 51.48 ± 15.46 with minimum age 18 and maximum was 65 years. Out of 138 patients, 84(61%) were male while 54(39%) were female., 52(37.7%) patients diagnosed of diabetes mellitus, 75(54.3%) patients of hypertension and 58(42.03%) patients were smoker, 41(29.7%) have family history, 47(34.1%) patients have dyslipidemia and only 50(36.2%) obese patients. Patients divided into two groups; patients with complete heart block in the age grouped between 16-35 years, only 6(4.3%) as compare with age grouped 36-65 years only 10(7.2%) have complete heart block, male 8(5.8%), only 5(3.6%) hypertensive patients and 4(2.9%) diabetic patients suffering complete heart block, 2(1.4%) patients presented during 1-12 hours compare with 7(5.1%) presented between 13-24 hours, results showed statistically insignificant as p-value > 0.05. 2nd Degree AV Block and complete heart block showed significant difference between troponin level as p-value <0.05 in patients diagnosed with ACS. Conclusion Atrioventricular block is frequently reversible in people with AMI. As a result, in situations with AMI permanent pacemaker installation should be postponed.