Aim: To study various types of arrhythmias in relation to time between the admission and the onset. Material & Method: The present study was done a Cross-sectional prospective study conducted at the Department of Medicine, Darbhanga, Medical College & Hospital, Laheriasarai, Bihar, India. The study was conducted over a period of one year. Results: Predominance of alcoholism and smokers were present in the study group. Time interval between presentation and onset arrhythmias was studied in the study population. It was found that majority of arrhythmias occurred in the first day post MI which was 76.7%. Conclusion: Myocardial infarction was most common in 40 – 49 years age group. Incidence is least in below 30 years age group. Majority of deaths was seen in 50 – 59 years age group. Males were the predominant population and sex did not affect the prognosis significantly. Alcohol consumption and smokers were predominant in the study group. Alcoholism does not affect the outcome. Majority of arrhythmias occurred on day 1 post MI. the time interval between the presentation and onset of arrhythmias does not affect the prognosis significantly.

Aim: To study various types of arrhythmias in relation to time between the admission and the onset. Material & Method: The present study was done a Cross-sectional prospective study conducted at the Department of Medicine, Darbhanga, Medical College & Hospital, Laheriasarai, Bihar, India. The study was conducted over a period of one year. Results: Predominance of alcoholism and smokers were present in the study group. Time interval between presentation and onset arrhythmias was studied in the study population. It was found that majority of arrhythmias occurred in the first day post MI which was 76.7%. Conclusion: Myocardial infarction was most common in 40 – 49 years age group. Incidence is least in below 30 years age group. Majority of deaths was seen in 50 – 59 years age group. Males were the predominant population and sex did not affect the prognosis significantly. Alcohol consumption and smokers were predominant in the study group. Alcoholism does not affect the outcome. Majority of arrhythmias occurred on day 1 post MI. the time interval between the presentation and onset of arrhythmias does not affect the prognosis significantly.