Effects of lung hyperinflation on mean arterial pressure and postsuctioning hypoxemia.
Heart Lung
; 18(4): 377-85, 1989 Jul.
Article
en En
| MEDLINE
| ID: mdl-2787310
ABSTRACT
Our purpose was to determine the effect of five different lung hyperinflation volumes (tidal volume, 12 cc/kg, 14 cc/kg, 16 cc/kg, and 18 cc/kg lean body weight) on mean arterial pressure and postsuctioning hypoxemia (arterial blood gases). Subjects received three consecutive lung hyperinflations at one of the five randomly ordered volumes in 15 seconds via a ventilator "sigh" control at a fraction of inspired oxygen of 1.0. The three lung hyperinflations were followed by 10 seconds of continuous suction (flow rate 16 L/min). The procedure was repeated three times. The sample consisted of eight men and women 4 hours after coronary artery bypass graft surgery. Data indicated a statistically significant (by analysis of variance, p = 0.000) mean increase of 15 mm Hg in mean arterial pressure over the three lung hyperinflation sequences that was not volume dependent. There was a significant increase (p = 0.0001) in arterial oxygen pressure at 0 seconds after suctioning that increased with each increasing lung hyperinflation volume.
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Bases de datos:
MEDLINE
Asunto principal:
Respiración Artificial
/
Presión Sanguínea
/
Hipoxia
Tipo de estudio:
Clinical_trials
Límite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Heart Lung
Año:
1989
Tipo del documento:
Article