Quantitative and pattern analyses of continuous-wave Doppler-derived pulmonary regurgitant flow velocity for the diagnosis of constrictive pericarditis.
J Am Soc Echocardiogr
; 27(11): 1223-9, 2014 Nov.
Article
em En
| MEDLINE
| ID: mdl-25096415
ABSTRACT
BACKGROUND:
Many echocardiographic features of constrictive pericarditis (CP) have been reported, but each alone has a limitation either in sensitivity or in specificity. Continuous-wave Doppler-derived flow velocity of pulmonary regurgitation can reflect the diastolic right ventricular pressure pattern characteristic of CP and be useful for its detection.METHODS:
Fifteen patients with CP, 18 patients with restrictive cardiomyopathy, and 20 normal subjects were studied retrospectively. Using continuous-wave Doppler echocardiography, pulmonary regurgitation velocities were measured at the early diastolic peak (VMAx), mid-diastolic inflection point (VIFL), and late diastolic minimal point (VMIN).RESULTS:
VIFL, VIFL/VMAx, VMIN, and VMIN/VMAx were significantly lower in the CP group compared with the restrictive cardiomyopathy and normal groups. Prevalence rates of patients with early mid-diastolic inflection, VIFL/VMAx < 0.5, VMIN < 50 cm/sec, and VMIN/VMAx < 0.33 were significantly greater in the CP group compared with the other groups. Sensitivity and specificity for the diagnosis of CP were 93% and 74%, respectively, for the presence of early mid-diastolic inflection, 73% and 100% for VIFL/VMAx < 0.5, 73% and 97% for VMIN < 50 cm/sec, and 93% and 92% for VMIN/VMAx < 0.33.CONCLUSIONS:
The quantitative and pattern analyses of continuous-wave Doppler-derived pulmonary regurgitation velocity could enhance the accuracy of echocardiographic detection of CP.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Pericardite Constritiva
/
Insuficiência da Valva Pulmonar
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Reconhecimento Automatizado de Padrão
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Interpretação de Imagem Assistida por Computador
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Ecocardiografia Doppler
Tipo de estudo:
Diagnostic_studies
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Etiology_studies
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Risk_factors_studies
Limite:
Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article