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Cardiac Stress Test Induced by Dobutamine and Monitored by Cardiac Catheterization in Mice
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Published on: February 10, 2013

Syncope caused by severe hypotension and intraventricular gradient during dobutamine stress echocardiography

Maria José Loureiro1, Carlos Cotrim, Otília Simões

  • 1Serviço de Cardiologia, Hospital Garcia de Orta, Almada, Portugal. loureiro.mj@netcabo.pt

Revista Portuguesa De Cardiologia : Orgao Oficial Da Sociedade Portuguesa De Cardiologia = Portuguese Journal of Cardiology : an Official Journal of the Portuguese Society of Cardiology
|May 21, 2008
PubMed

Insights

Dobutamine stress echocardiography can cause complications like hypotension. This case highlights severe intraventricular gradient and mitral valve movement during the procedure.

Area of Science:

  • Cardiology
  • Diagnostic Imaging

Background:

  • Dobutamine stress echocardiography is a standard non-invasive tool for assessing coronary artery disease.
  • While generally safe, potential complications necessitate careful monitoring and understanding.

Observation:

  • A patient undergoing dobutamine stress echocardiography experienced an adverse event.
  • The event manifested as hypotension and syncope, indicating a significant physiological disturbance.

Findings:

  • Severe intraventricular gradient exceeding 200 mmHg was identified during the echocardiography.
  • Systolic anterior movement of the mitral valve was observed, correlating with the hemodynamic compromise.

Implications:

  • This case underscores the importance of recognizing rare but serious complications associated with dobutamine stress echocardiography.
  • Understanding the mechanisms of intraventricular gradients and mitral valve dynamics is crucial for managing such events.

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