RESPIRATORY INPUT IMPEDANCE DURING HIGH FREQUENCY OSCILLATORY VENTILATION
نویسندگان
چکیده
منابع مشابه
Respiratory input impedance during high frequency oscillatory ventilation.
Total respiratory input impedance (Zrs) measured by forced excitation may be computed easily from pressure and flow measurements recorded at the airway opening. The purpose of this paper was to analyse how the information provided by Zrs may be used for monitoring ventilatory mechanics during high frequency oscillatory ventilation (HFOV). We measured impedance (0.125-32 Hz) in six dogs, and in ...
متن کاملhigh frequency oscillatory ventilation in severe respiratory failure
despite improvement of mechanical ventilation devices for infants, lung injury still causes morbidity and mortality in many cases. to determine the effect of high frequency oscillatory ventilation (hfov) in infants with severe respiratory failure, 10 neonates were evaluated prospectively. mean gestational age of these patients was 35 weeks and alveolar-arterial oxygen gradient (a-ado2) and the ...
متن کاملHigh-frequency oscillatory ventilation for acute respiratory distress syndrome.
OBJECTIVE To evaluate the effectiveness of HFOV in pediatric patients with acute respiratory distress syndrome. METHODS In this retrospective study, we reviewed all 20 pediatric patients, who were consecutively ventilated with HFOV in the pediatric intensive care unit of a tertiary medical center, from January 2006 to February 2007. RESULTS A total of 20 patients were enrolled. The median a...
متن کاملHigher frequency ventilation attenuates lung injury during high-frequency oscillatory ventilation in sheep models of acute respiratory distress syndrome.
BACKGROUND High-frequency oscillatory ventilation (HFOV) at higher frequencies minimizes the tidal volume. However, whether increased frequencies during HFOV can reduce ventilator-induced lung injury remains unknown. METHODS After the induction of acute respiratory distress syndrome in the model by repeated lavages, 24 adult sheep were randomly divided into four groups (n = 6): three HFOV gro...
متن کاملSpecific compliance and gas exchange during high-frequency oscillatory ventilation.
OBJECTIVES To evaluate the use of specific compliance (static compliance/functional residual capacity) to adjust mean airway pressure, resulting in optimal gas exchange during high-frequency oscillatory ventilation in a surfactant-deficient newborn piglet. DESIGN Prospective controlled animal study. SETTING Laboratory. SUBJECTS Eight newborn piglets at 5 days of age. BACKGROUND High-fre...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1989
ISSN: 0007-0912
DOI: 10.1093/bja/63.7.85