• J Clin Anesth · Nov 2017

    Randomized Controlled Trial Comparative Study

    Efficacy of continuous positive airway pressure and incentive spirometry on respiratory functions during the postoperative period following supratentorial craniotomy: A prospective randomized controlled study.

    • Hulya Kahraman Sah, Eren Fatma Akcil, Yusuf Tunali, Hayriye Vehid, and Ozlem Korkmaz Dilmen.
    • University of Istanbul, Cerrahpasa School of Medicine, Department of Anesthesiology and Intensive Care, Turkey.
    • J Clin Anesth. 2017 Nov 1; 42: 31-35.

    Study ObjectiveVolume controlled ventilation with low PEEP is used in neuro-anesthesia to provide constant PaCO2 levels and prevent raised intracranial pressure. Therefore, neurosurgery patients prone to atelectasis formation, however, we could not find any study that evaluates prevention of postoperative pulmonary complications in neurosurgery.DesignA prospective, randomized controlled study.SettingIntensive care unit in a university hospital in Istanbul.PatientsSeventy-nine ASAI-II patients aged between 18 and 70years scheduled for elective supratentorial craniotomy were included in the study.InterventionsPatients randomized into 3 groups after surgery. The Group IS (n=20) was treated with incentive spirometry 5 times in 1min and 5min per hour, the Group CPAP (n=20) with continuous positive airway pressure 10 cmH2O pressure and 0.4 FiO2 via an oronasal mask 5min per hour, and the Group Control (n=20) 4L·min-1O2 via mask; all during the first 6h postoperatively. Respiratory functions tests and arterial blood gases analysis were performed before the induction of anesthesia (Baseline), 30min, 6h, 24h postoperatively.Main ResultsThe IS and CPAP applications have similar effects with respect to FVC values. The postoperative 30min FEV1 values were statistically significantly reduced compared to the Baseline in all groups (p<0.0001). FEV1 values were statistically significantly increased at the postoperative 24h compared to the postoperative 30min in the Groups IS and CPAP (p<0.0001). This increase, however, was not observed in the Group Control, and the postoperative 24h FEV1 values were statistically significantly lower in the Group Control compared to the Group IS (p=0.015).ConclusionAlthough this study is underpowered to detect differences in FEV1 values, the postoperative 24h FEV1 values were significantly higher in the IS group than the Control group and this difference was not observed between the CPAP and Control groups. It might be evaluate a favorable effect of IS in neurosurgery patients. But larger studies are needed to make a certain conclusion.Copyright © 2017 Elsevier Inc. All rights reserved.

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