Age dependency of left atrial and left ventricular acoustic quantification waveforms for the evaluation of diastolic performance in left ventricular hypertrophy.
J Am Soc Echocardiogr
; 11(11): 1027-35, 1998 Nov.
Article
em En
| MEDLINE
| ID: mdl-9812095
ABSTRACT
We evaluated diastolic performance in 50 normal subjects and 50 patients with concentric left ventricular (LV) hypertrophy. Age-dependent normal values were determined for LV and left atrial (LA) acoustic quantification parameters. Pulsed wave Doppler echocardiography was also performed on all subjects. Patients with LV hypertrophy had higher peak velocities of atrial contraction and atrial contributions to filling. The acoustic quantification waveforms revealed lower rapid filling percentage of total filling and lower peak rapid filling rates. The LA acoustic quantification analysis confirmed the dependence on active atrial emptying in the patients with LV hypertrophy. There were significant correlations with age for most of the LV and LA acoustic quantification parameters. Acoustic quantification provided confirmatory results in subjects with an abnormal relaxation or restrictive Doppler pattern. In subjects with a normal Doppler pattern, the acoustic quantification was of added diagnostic value, identifying abnormalities in 77% to 80% of the patients.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Envelhecimento
/
Ecocardiografia Doppler
/
Hipertrofia Ventricular Esquerda
Limite:
Adult
/
Aged
/
Humans
/
Middle aged
Idioma:
En
Revista:
J Am Soc Echocardiogr
Assunto da revista:
DIAGNOSTICO POR IMAGEM
Ano de publicação:
1998
Tipo de documento:
Article
País de afiliação:
Estados Unidos