Post-suction recruitment manoeuvre restores lung function in healthy, anaesthetized pigs. Anaesthesia and intensive care [Anaesth Intensive Care] Journal article | | Title | Post-suction recruitment manoeuvre restores lung function in healthy, anaesthetized pigs. | | Author(s) | Almgren B, Wickerts CJ, Hogman M | | Institution | Department of Medical Cell Biology, Section of Integrative Physiology, Uppsala University, Uppsala, Sweden. | | Source | Anaesth Intensive Care 2004 Jun; 32(3):339-45. | | MeSH | Animals
Atelectasis
Intubation, Intratracheal
Lung Compliance
Lung Volume Measurements
Positive-Pressure Respiration
Pulmonary Gas Exchange
Respiration, Artificial
Suction
Swine
| | Abstract | Endotracheal suction can cause partial lung collapse and hypoxia and alter lung mechanics. We investigated the effects of adding a recruitment manoeuvre directly after endotracheal suction to restore lung volume in volume-controlled ventilation and pressure-controlled ventilation modes. Five anaesthetized pigs were investigated. The effects of endotracheal suction with or without a recruitment manoeuvre were compared in random order. In volume-controlled ventilation, compliance decreased after suction from 33 +/- 5 to 26 +/- 6 ml x cmH2O(-1) (P<0.05), and 30 minutes later it remained decreased at 25 +/- 6 ml x cmH2O(-1). Venous admixture increased after suction from 5 +/- 2 to 8 +/- 4% (P<0.05), but had recovered at 30 minutes. In pressure-controlled ventilation, compliance decreased after suction from 34 +/- 3 to 25 +/- 7 ml x cmH2O(-1) (P<0.05), and 30 minutes later it remained decreased at 25 +/- 7 ml x cmH2O(-1). Venous admixture increased after suction from 5 +/- 2 to 13 +/- 7% (P<0.05), and had not recovered after 30 minutes, 10 +/- 4%. When a recruitment manoeuvre was applied directly after suction, no negative side-effects were registered in volume-controlled ventilation or pressure-controlled ventilation. We conclude that the impairment of lung mechanics and gas exchange induced by endotracheal suction can be prevented by a simple post-suction recruitment manoeuvre. Further studies are needed to identify a suitable suction recruitment manoeuvre in patients with diseased lungs. | | Language | eng | | Pub Type(s) | Journal Article
Research Support, Non-U.S. Gov't
| | PubMed ID | 15264727 |
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