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Right ventricular infarction.

J F Setaro1, H S Cabin

  • 1Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut.

Cardiology Clinics
|February 1, 1992
PubMed
Summary
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Right ventricular myocardial infarction, often missed, can now be diagnosed with established criteria. Prompt diagnosis and management of right ventricular infarction improve patient outcomes.

Area of Science:

  • Cardiology
  • Cardiovascular Medicine

Background:

  • Right ventricular myocardial infarction (RVMI) was historically underdiagnosed due to limited diagnostic tools and a misconception of the right ventricle's dispensability.
  • RVMI is frequently associated with left ventricular infarction, occurring in 30-40% of inferior infarction cases, though hemodynamic compromise is less common.

Purpose of the Study:

  • To highlight the diagnostic criteria and management strategies for right ventricular myocardial infarction.
  • To emphasize the pathophysiological mechanisms and clinical presentation of RVMI.

Main Methods:

  • Diagnosis is supported by clinical presentation, physical examination, and enzymatic markers.
  • Confirmation involves electrocardiography, radionuclide imaging, echocardiography, and hemodynamic assessments.

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Main Results:

  • Right ventricular dysfunction, both systolic and diastolic, is exacerbated by pericardial restraint and left ventricular dysfunction.
  • Characteristic findings include cardiogenic shock and significant preload dependence.

Conclusions:

  • Established criteria now allow for the diagnosis of RVMI.
  • Specific hemodynamic and pharmacologic management, alongside potential interventions, leads to a generally favorable prognosis for RVMI patients.