Changes in Doppler mitral inflow patterns during parabolic flight.

Caiani, E G; Asquer, G; Turiel, M; Bailliart, O; Cholley, B; Capderou, A; Vaida, P

Caiani, E G; Asquer, G; Turiel, M; Bailliart, O; Cholley, B; Capderou, A; Vaida, P.

Afiliación

Caiani EG; Biomedical Eng. Dept., Politecnico di Milano, Milano, Italy. caiani@biomed.polimi.it

J Gravit Physiol ; 11(2): P93-4, 2004 Jul.

Article en En | MEDLINE | ID: mdl-16235430

RESUMEN

Aim of the study was to evaluate by transthoracic Doppler the alterations in mitral inflow velocity pattern caused by acute changes in loading conditions occurring during parabolic flights. Each parabola included normogravity (1 Gz, 1 min), mild hypergravity (1.8 Gz, 20 sec), microgravity (0 Gz, 24 sec) and mild hypergravity (1.8 Gz, 20 sec) phases. Pulsed-Doppler images were digitally acquired in 11 unmedicated subjects (46 +/- 5 years), in standing upright position and supine resting. Doppler profiles were semi-automatically traced and inflow parameters extracted and averaged onto three consecutive beats. Only in standing position, significant alterations during microgravity (p<0.05) were noted in several parameters.

Asunto(s)

Ventrículos Cardíacos/diagnóstico por imagen; Válvula Mitral/diagnóstico por imagen; Vuelo Espacial; Función Ventricular Izquierda/fisiología; Ingravidez; Adulto; Ecocardiografía Doppler; Humanos; Hipergravedad; Persona de Mediana Edad; Postura/fisiología; Posición Supina

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vuelo Espacial / Ingravidez / Función Ventricular Izquierda / Ventrículos Cardíacos / Válvula Mitral Límite: Adult / Humans / Middle aged Idioma: En Revista: J Gravit Physiol Asunto de la revista: FISIOLOGIA Año: 2004 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos

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