Triphasic mitral inflow documented by Doppler echocardiography and cardiac catheterization: a case study.
Intern Med
; 50(6): 581-4, 2011.
Article
em En
| MEDLINE
| ID: mdl-21422682
ABSTRACT
An 85-year-old woman with hypertension was referred to our hospital for the management of chest pain. Echocardiography showed left ventricular (LV) hypertrophy with impaired systolic function (ejection fraction, 40%) and mitral regurgitation. Pulsed Doppler echocardiography for checking mitral inflow showed triphasic mitral inflow velocity. Simultaneous recording of the LV and pulmonary artery wedge (PAW) pressures showed a high mean PAW pressure with a prominent v wave. The LV pressure showed a temporary elevation in early diastole; it was unusually decreased in mid-diastole, and finally was elevated to such an extent that it exceeded PAW pressure. In this patient, the mid-diastolic decrease in LV pressure, despite the presence of simultaneous LV filling flow, cannot be explained by conventional pressure-volume relation; rather it can be attributed to the abrupt increase in the inflow volume due to the impaired diastolic function. This case shows the characteristics of triphasic mitral inflow in patients with diastolic dysfunction.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cateterismo Cardíaco
/
Ecocardiografia Doppler
/
Valva Mitral
/
Insuficiência da Valva Mitral
Limite:
Aged80
/
Female
/
Humans
Idioma:
En
Revista:
Intern Med
Assunto da revista:
MEDICINA INTERNA
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Japão