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Titolo:
Echocardiographic assessment of ejection fraction in left ventricular hypertrophy
Autore:
Wandt, B; Bojo, L; Tolagen, K; Wranne, B;
Indirizzi:
Cent Hosp, Dept Clin Physiol, S-65185 Karlstad, Sweden Cent Hosp Karlstad Sweden S-65185 Clin Physiol, S-65185 Karlstad, Sweden Cent Hosp, Dept Med, S-65185 Karlstad, Sweden Cent Hosp Karlstad Sweden S-65185 sp, Dept Med, S-65185 Karlstad, Sweden Linkoping Univ Hosp, Dept Clin Physiol, S-58185 Linkoping, Sweden Linkoping Univ Hosp Linkoping Sweden S-58185 , S-58185 Linkoping, Sweden
Titolo Testata:
HEART
fascicolo: 2, volume: 82, anno: 1999,
pagine: 192 - 198
SICI:
1355-6037(199908)82:2<192:EAOEFI>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATRIOVENTRICULAR PLANE DISPLACEMENT; HEART-FAILURE; DILATED CARDIOMYOPATHY; MYOCARDIAL-INFARCTION; HYPERTENSIVE HEARTS; DIASTOLIC FUNCTION; MITRAL ANULUS; MOTION; AGE; CINEANGIOGRAPHY;
Keywords:
left ventricular hypertrophy; ejection fraction; mitral ring motion; atrioventricular plane displacement;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: Wandt, B Cent Hosp, Dept Clin Physiol, S-65185 Karlstad, Sweden Cent HospKarlstad Sweden S-65185 iol, S-65185 Karlstad, Sweden
Citazione:
B. Wandt et al., "Echocardiographic assessment of ejection fraction in left ventricular hypertrophy", HEART, 82(2), 1999, pp. 192-198

Abstract

Objective-To investigate the value of Simpson's rule, Teichholz's formula,and recording of mitral ring motion in assessing left ventricular ejectionfraction (EF) in patients with left ventricular hypertrophy. Design-Left ventricular ejection fraction calculated by Simpson's rule andby Techholt's formula and estimated by mitral ring motion was compared with values obtained by radionuclide angiography. Setting-Secondary referral centre. Patients-16 patients with left ventricular hypertrophy and a clinical diagnosis of hypertrophic cardiomyopathy or hypertension. Results-Calculation by Teichholz's formula overestimated left ventricular ejection fraction by 10% (p=0.002) and estimation based on mitral ring motion-that is, long axis measurements-underestimated ejection fraction by 19% (p = 0.002), without significant correlation between ring motion and ejection fraction. There was no significant difference between mean values of ejection fraction calculated by Simpson's rule and measured by the reference method, but a considerable scatter about the regression line with a standarderror of the estimate of 9.3 EF%. Conclusions-In patients with left ventricular hypertrophy the ejection fraction, calculated by Teichholz's formula or Simpson's rule, is a poor measure of left ventricular function. When mitral ring motion is used for the assessment in these patients the function should be expressed in ways other than by the ejection fraction.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 16:14:18