Left ventricular outflow tract and mid-cavity obstruction may cause false-positive dobutamine stress echocardiograms.
Eur J Echocardiogr
; 12(3): E14, 2011 Mar.
Article
em En
| MEDLINE
| ID: mdl-20977996
ABSTRACT
Left ventricular (LV) outflow tract obstruction (LVOTO) occurs in up to 20% of patients undergoing dobutamine stress echocardiography (DSE). Mid-cavity LV obstruction occurs less commonly during DSE. LV regional wall motion abnormalities during DSE may occur despite normal coronaries due to hypertensive blood pressure response and takotsubo stress cardiomyopathy. We describe herein two cases of LVOTO and one case of mid-cavity LV obstruction during DSE associated with transient apical hypokinesis.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Obstrução do Fluxo Ventricular Externo
/
Estenose Coronária
/
Ecocardiografia sob Estresse
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
Limite:
Adult
/
Female
/
Humans
/
Middle aged
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article