Effect of two manual cyclical alveolar recruitment maneuvers on the value of blood gases in anesthetized dogs
The atelectasis during anesthesia affects gas exchange in humans and animals; this can be corrected using alveolar recruitment maneuvers (MRA). This study evaluated the effect of two cyclic alveolar recruitment protocols by increasing the positive end expiratory pressure (PEEP) on six parameters of arterial blood gases in 28 anesthetized bitches. The animals were randomly distributed into two groups according to the alveolar recruitment maneuver (MRA) to perform; Group 1: Maneuver 1 (M1) recruited with PEEP of 10cmH2O and group 2: Maneuver 2 (m2) with PEEP 20cmH2O recruited with 20 cmH2O PEEP. Cyclic maneuvers were performed using ambulatory manual breathing units (AMBU). The PaO2, PaCO2, TCO2, PaO2/ FiO2, SpO2 y CaO2 values was analyzed for each MRA in four times; T1 (baseline in preanesthesia), T2 (before of the recruitment), T3 (30 minutes after maneuver) and T4 (24 hours after maneuver). In the T2 moment the PaO2, PaCO2, TCO2, SpO2 and CaO2 values showed a significant increase (p<0.05) from T1 baseline moment. No significant changes were apparent after performing each maneuver in the time T3 of evaluation; however, there was a significant increase (p <0.05) in PaO2 of 13.5% in the time T4 after making the m2maneuver. From which we conclude that the performance of alveolar recruitment maneuvers by artificial manual breathing units - AMBU are a safe alternative to assisted ventilation during alveolar recruitment maneuvers with PEEP lower than 20cmH2O in clinically healthy animals.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
2016
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| Online Access: | https://revistas.udca.edu.co/index.php/ruadc/article/view/123 |
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