Are intraventricular gradients with dobutamine a cause of false positive treadmill stress tests?

Rev Port Cardiol. 2009 Jul-Aug;28(7-8):859-66.
[Article in English, Portuguese]

Abstract

An asymptomatic 40-year-old man with no conventional risk factors for coronary artery disease had a positive treadmill stress test based on ECG criteria. Coronary CT angiography showed a small plaque in the left anterior descending artery and dobutamine-atropine stress echocardiography was negative for myocardial ischemia but showed a significant outflow gradient (100 mmHg) during pharmacological stress.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Cardiotonic Agents*
  • Dobutamine*
  • Exercise Test*
  • False Positive Reactions
  • Heart Ventricles / physiopathology*
  • Humans
  • Male

Substances

  • Cardiotonic Agents
  • Dobutamine