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Cardiorespiratory effects of pressure controlled ventilation in severe respiratory failure
- Source :
- Chest. 98(6)
- Publication Year :
- 1990
-
Abstract
- Cardiorespiratory values were measured in ten patients with severe respiratory failure on volume controlled and pressure controlled ventilation. Tidal volume, respiratory rate, PEEP, auto-PEEP, inspiratory:expiratory ratio (1:2) and FIo 2 were maintained at the same value for both ventilatory modalities. Changing from VCV to PCV was associated with significant improvements in PaO 2 , oxygen delivery, and tissue oxygen consumption. Peak inspiratory pressure fell. There were no significant changes in other cardiorespiratory values, such as arterial blood pressure, nor in ventilatory measurements, such as mean airway pressure, associated with the use of PCV. These results suggest that PCV may be a beneficial ventilatory modality in the treatment of severe respiratory failure since it results in improvement in arterial oxygenation, tissue oxygen delivery and utilization without any concomitant adverse effects on other hemodynamic or ventilatory factors.
- Subjects :
- Pulmonary and Respiratory Medicine
Adult
Male
Respiratory rate
Peak inspiratory pressure
Mean airway pressure
Critical Care and Intensive Care Medicine
Intermittent Positive-Pressure Ventilation
Medicine
Humans
Lung Compliance
Positive end-expiratory pressure
Tidal volume
Aged
Aged, 80 and over
business.industry
Airway Resistance
Hemodynamics
Cardiorespiratory fitness
Carbon Dioxide
Middle Aged
Respiration, Artificial
Oxygen
Blood pressure
Respiratory failure
Anesthesia
Respiratory Mechanics
Female
Cardiology and Cardiovascular Medicine
business
Respiratory Insufficiency
Subjects
Details
- ISSN :
- 00123692
- Volume :
- 98
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Chest
- Accession number :
- edsair.doi.dedup.....8db7c31dab8bfbd1898f620c55cfc4c0