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Study of Rhythm Disturbances in Acute Myocardial Infarction

Anjalee Chiwhane1, Pradeep2

  • 1Professor, JNMC, Sawangi Wardha, Maharashtra; *Corresponding Author.

The Journal of the Association of Physicians of India
|October 21, 2018
PubMed

Insights

Cardiac rhythm disturbances are common in acute myocardial infarction (AMI). This study found sinus tachycardia and bradycardia were the most frequent arrhythmias, with tachyarrhythmias leading to significantly higher mortality in AMI patients.

Area of Science:

  • Cardiology
  • Clinical Medicine
  • Arrhythmology

Background:

  • Cardiac rhythm disturbances are frequent complications of acute myocardial infarction (AMI).
  • Early reperfusion therapy has reduced AMI mortality, but arrhythmias remain critical events.
  • Limited data exists on rhythm disturbances in AMI patients from rural central India.

Purpose of the Study:

  • To investigate the types of rhythm disturbances in acute myocardial infarction (AMI).
  • To correlate arrhythmias with the clinical profile of AMI patients.
  • To assess the impact of arrhythmias on AMI outcomes in a rural tertiary care setting.

Main Methods:

  • Retrospective analysis of acute ST-elevation and non-ST-elevation MI patients with rhythm disturbances.
  • Data collected from April 2012 to 2014 during reperfusion therapy or ICU stay.
  • Focus on patient demographics, clinical presentation, risk factors, and arrhythmia types.

Main Results:

  • Sinus tachycardia (86%) and sinus bradycardia (68%) were the most common arrhythmias.
  • Hypertension was the most frequent risk factor; chest pain (97%) and palpitations (63%) were common symptoms.
  • Mortality was significantly higher in patients with tachyarrhythmias (55.71% in AWMI, 17.14% in IWMI) compared to bradyarrhythmias (p < 0.0001).

Conclusions:

  • Sinus tachycardia and bradycardia are the predominant arrhythmias in this AMI cohort, differing from global findings where atrial fibrillation is more common.
  • Tachyarrhythmias are associated with significantly increased mortality in acute myocardial infarction.
  • Findings highlight the specific arrhythmia profile and outcomes in a rural Indian AMI population.
Abstract

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