Competitive pulmonary flow in infancy: the effect of respiration.
Int J Cardiol
; 68(1): 9-12, 1999 Jan.
Article
em En
| MEDLINE
| ID: mdl-10077395
ABSTRACT
Superior caval flow during positive pressure mechanical ventilation and spontaneous breathing was investigated by Doppler echocardiography in a neonate with a coexisting superior cavopulmonary shunt and an aortopulmonary shunt. During positive pressure ventilation, retrograde systolic flow in the superior vena cava was recorded, with low velocity anterograde flow. This pattern was reversed during spontaneous respiration. Low intrathoracic pressure plays an important role in maintaining anterograde pulmonary blood flow in patients with this physiology.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Respiração
/
Circulação Pulmonar
/
Cardiopatias Congênitas
/
Ventrículos do Coração
Tipo de estudo:
Etiology_studies
Limite:
Humans
/
Newborn
Idioma:
En
Revista:
Int J Cardiol
Ano de publicação:
1999
Tipo de documento:
Article
País de afiliação:
Holanda