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Murine Isolated Heart Model of Myocardial Stunning Associated with Cardioplegic Arrest
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Stunned myocardium following ischemic stroke. Case report

Vasco Dias1, Sofia Cabral, Ana Meireles

  • 1Department of Cardiology, Santo António General Hospital, Oporto Hospital Center, Porto, Portugal. vascoalvesdias@hotmail.com

Cardiology
|March 10, 2009
PubMed

Insights

Neuromediated stunned myocardium, a rare complication of central nervous system disorders like stroke, presents diagnostic challenges. This case highlights persistent cardiac dysfunction mimicking myocardial infarction, even after neurological recovery.

Area of Science:

  • Cardiology
  • Neurology
  • Cardiovascular Research

Background:

  • Neuromediated stunned myocardium is a known complication of subarachnoid hemorrhage.
  • Its pathophysiology is unclear, with catecholamine-induced neurocardiogenic injury being a proposed cause.
  • Typically, cardiovascular recovery is rapid.

Observation:

  • A case of ischemic stroke with coexisting myocardial infarction was observed.
  • This included ischemic electrocardiographic changes, elevated cardiac biomarkers, and wall motion abnormalities.
  • Coronary arteries were notably normal despite cardiac findings.

Findings:

  • The patient presented with myocardial infarction symptoms secondary to a neurological event.
  • Left-ventricular dysfunction persisted longer than typically observed, despite neurological recovery.
  • The condition mimicked acute myocardial infarction, posing diagnostic challenges.

Implications:

  • This case underscores the importance of considering neuromediated cardiac injury in patients with central nervous system disorders.
  • Further research is needed to elucidate the pathophysiology and diagnostic criteria for this entity.
  • Recognizing this condition is crucial for appropriate patient management and avoiding misdiagnosis of acute myocardial infarction.

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