A novel and simple method using pocket-sized echocardiography to screen for aortic stenosis.
J Am Soc Echocardiogr
; 26(6): 589-96, 2013 Jun.
Article
em En
| MEDLINE
| ID: mdl-23602166
ABSTRACT
BACKGROUND:
Pocket-sized echocardiography may serve as an initial tool to screen for aortic stenosis (AS). The purpose of this study was to evaluate the usefulness of a novel and simple method using pocket-sized echocardiography to screen for AS.METHODS:
Subjects (n= 130) with systolic ejection murmur or known AS were studied. After physical examination, each aortic cusp's opening was visually scored using pocket-sized echocardiography as follows 0= not restricted, 1= restricted, or 2= severely restricted. The sum of the scores was defined as the visual AS score. On the basis of high-end echocardiography, an aortic valve area index <0.60 cm(2)/m(2) and an aortic valve area index of 0.60 to 0.85 cm(2)/m(2) were considered to indicate severe and moderate AS, respectively.RESULTS:
For diagnosing severe AS (n= 27), a visual AS score ≥ 4 had sensitivity of 85% and specificity of 89%. For diagnosing moderate to severe AS (n= 57), a visual AS score ≥ 3 had sensitivity of 84% and specificity of 90%. The areas under the receiver operating characteristic curves for diagnosing severe and moderate to severe AS with a visual AS score (0.946 and 0.936, respectively) were slightly larger than those for a skilled physical examination (0.917 and 0.898, respectively) (P= NS for both) but were significantly larger than for an aortic valve calcification score also obtained using pocket-sized echocardiography (areas under the curve, 0.816 [P= .0015] and 0.827 [P= .0001], respectively).CONCLUSIONS:
A novel and simple method using pocket-sized echocardiography is useful for rapid grading of AS in subjects with systolic ejection murmur.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estenose da Valva Aórtica
/
Ecocardiografia
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Aged
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
J Am Soc Echocardiogr
Assunto da revista:
DIAGNOSTICO POR IMAGEM
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Japão