Relation between left ventricular outflow tract obstruction and left ventricular shape in patients with hypertrophic cardiomyopathy: a cardiac magnetic resonance imaging study

Autor: Meyer Elbaz, Romain Martin, Thomas Cognet, Simon Méjean, Michel Galinier, Thibault Lhermusier, Hervé Rousseau, Nicolas Dumonteil, Olivier Lairez, Didier Carrié, Nicolas Boudou, Matthieu Berry, Pierre Massabuau
Rok vydání: 2013
Předmět:
Adult
Male
medicine.medical_specialty
Cardiomyopathie hypertrophique
Heart Ventricles
Ventricular outflow tract obstruction
Magnetic Resonance Imaging
Cine
Ventricular Outflow Obstruction
macromolecular substances
Doppler echocardiography
Géométrie ventriculaire gauche
Cardiac magnetic resonance imaging
Predictive Value of Tests
Internal medicine
Mitral valve
medicine
Humans
cardiovascular diseases
Left ventricular outflow tract obstruction
Aged
Retrospective Studies
medicine.diagnostic_test
business.industry
Hypertrophic cardiomyopathy
Magnetic resonance imaging
General Medicine
Cardiomyopathy
Hypertrophic
Middle Aged
medicine.disease
Left ventricular shape
Imagerie par résonance magnétique cardiaque
Echocardiography
Doppler
medicine.anatomical_structure
Predictive value of tests
Cardiology
cardiovascular system
Mitral Valve
Female
medicine.symptom
business
Cardiology and Cardiovascular Medicine
Obstruction intraventriculaire gauche
Zdroj: Archives of cardiovascular diseases. 106(8-9)
ISSN: 1875-2128
Popis: SummaryBackgroundHypertrophic cardiomyopathies (HCM) are often associated with left ventricular (LV) outflow tract obstruction, which can explain symptoms and impact prognosis.AimsTo better understand the mechanisms that link obstruction and LV shape in HCM.MethodsPatients with HCM who underwent cardiac magnetic resonance (CMR) imaging were included retrospectively. Obstructive HCM was defined as LV outflow gradient more than 30mmHg at rest by transthoracic echocardiography. The LV shape and mitral angle were assessed by CMR. Results were compared with control subjects.ResultsMean LV-mitral angle was smaller in patients with obstructive HCM (n=29) than in patients with non-obstructive HCM (n=15) or control subjects (n=15) (80±5° vs 87±7° [P=0.0002] and 89±2° [P
Databáze: OpenAIRE
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