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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
07:41

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Published on: February 8, 2022

Atrial septal defect and myocardial infarct

Nicholas C Cavarocchi1

  • 1Section of Cardiothoracic Surgery, Mercy Hospital Wilkes-Barre, Pennsylvania 18702-3545, USA. ncc717@aol.com

The Annals of Thoracic Surgery
|November 21, 2002
PubMed

Insights

An atrial septal defect can cause acute myocardial infarction by increasing left-to-right shunting, leading to heart muscle damage and right ventricular dysfunction. This case report details such a scenario.

Area of Science:

  • Cardiology
  • Cardiovascular Research
  • Medical Case Reports

Background:

  • Acute myocardial infarction (AMI) with normal coronary arteriography necessitates investigating alternative etiologies.
  • Atrial septal defects (ASDs) are congenital heart conditions that can present atypically in adults.
  • Left-to-right shunting in ASDs can increase the risk of cardiovascular complications.

Observation:

  • This case report presents a patient experiencing acute myocardial infarction despite having normal coronary arteries.
  • The diagnostic workup revealed the presence of an atrial septal defect.
  • Hemodynamic assessment indicated significant left-to-right shunting through the ASD.

Findings:

  • The acute increase in left-to-right shunting associated with the atrial septal defect was identified as the likely cause of myocardial necrosis.
  • Right ventricular dysfunction was observed, consistent with increased volume load from the shunt.
  • The findings highlight a rare but critical presentation of ASD.

Implications:

  • Clinicians should consider atrial septal defects in the differential diagnosis of myocardial infarction with unobstructed coronary arteries.
  • Early diagnosis and closure of ASDs may prevent severe cardiac events like myocardial infarction.
  • This case underscores the importance of comprehensive etiological investigation in cardiology.

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