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]
Authors
Nuno Cardim
1
, Pedro Campos, Daniel Ferreira, Vanda Carmelo, Marisa Trabulo, Teresa Santos, Adelaide Almeida, Cristina Prata, Sylvie Mariana, F Pereira Machado, José Roquette
Affiliation
- 1 Departamento de Imagiologia Cardíaca, Serviço de Cardiologia do Hospital da Luz, Lisboa, Portugal.
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.
MeSH terms
-
Adult
-
Cardiotonic Agents*
-
Dobutamine*
-
Exercise Test*
-
False Positive Reactions
-
Heart Ventricles / physiopathology*
-
Humans
-
Male
Substances
-
Cardiotonic Agents
-
Dobutamine