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Related Experiment Videos

[Suddenly occurring exercise intolerance].

M Anderegg1, N Schwick, J P Schmid

  • 1Klinik und Poliklinik für Kardiologie, Schweizer Herz- und Gefässzentrum, Universitïtsklinik Inselspital Bern.

Praxis
|October 16, 2007
PubMed
Summary
This summary is machine-generated.

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This case report details diagnosing exercise intolerance and dyspnea. Cardio-pulmonary exercise testing revealed exercise-induced atrio-ventricular block causing chronotropic incompetence.

Area of Science:

  • Cardiology
  • Exercise Physiology

Background:

  • Exercise intolerance and dyspnea are common symptoms requiring thorough differential diagnosis.
  • Chronotropic incompetence can significantly impair exercise capacity.

Observation:

  • A patient presented with unexplained exercise intolerance and dyspnea.
  • Diagnostic workup included cardio-pulmonary exercise testing.

Findings:

  • Cardio-pulmonary exercise testing identified an exercise-induced second-degree atrio-ventricular block.
  • This finding explained the patient's chronotropic incompetence and exercise limitation.

Implications:

  • Highlights the utility of cardio-pulmonary exercise testing in diagnosing exercise intolerance.
  • Emphasizes exercise-induced atrio-ventricular block as a potential cause of chronotropic incompetence.

Related Experiment Videos

  • Informs clinical approaches to patients with unexplained exertional symptoms.