Incidence of Arrhythmias in Myocardial Infarction
Incidence of Arrhythmias in Myocardial Infarction
DOI:
https://doi.org/10.70284/njirm.v5i6.840Keywords:
Incidence of Arrhythmias in myocardial InfarctionAbstract
Background: Acute myocardial infarction remains a major health problem. The deaths with acute myocardial infarction are believed to occur within first 24 hours after myocardial infarction and are attributed to arrhythmias. The objective of this study is to assess incidence of arrhythmias in myocardial infarction and to time of their onset in patients presenting with myocardial infarction. Methods: 100 patients with acute myocardial infarction admitted to the ICC unit of Govt. General Hospital, Gulburga & Basaveshwar Teaching & General Hospital Gulburga from one year data were taken for present study. A detailed case history was taken and a meticulous physical examination was done for each patients. This was recorded in a proforma at the time of admission, detailed history, physical examination, ECG changes, echocardiography and serum enzyme levels. Time of onset and type of arrhythmias was also noted. Results: Male to female ratio with 4:1, mortality was more in the group with risk factors of smoking, Hypercholesterolemia, hypertension and diabetes. Commonest arrhythmias noticed in this study were ST-40%, VPBs – 35%, AVB-22%, BBB -20%, SB-15%, and VT -10%. Out of the 100 patients with myocardial infarction studied, 76 patients had arrhythmias. Majority of arrhythmias occurred during less than 12 hours and Sinus tachycardia was the commonest arrhythmia (40%). Conclusion: The commonest arrhythmias encountered were sinus tachycardia followed by ventricular premature beats, AV blocks, bundle branch block, sinus bradycardia and ventricular tachycardia. SB & Complete heart block were more common in IWMI whereas ST, VPC, and UB f were more common with AWMI. In addition to arrhythmias, Cardiogenic shock added to the mortality. 51% of patients developed arrhythmias in one or the other form within 24 hours of admission. [Patil B NJIRM 2014; 5(6):102-107]
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