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  • Title: The Safety of Fiberoptic Bronchoscopy in Airway Pressure Release Ventilation Mode in Critically Ill Patients with Severe Acute Respiratory Distress Syndrome: A Preliminary Study.
    Author: Öztürk MC, Küçük M, Uğur YL, Cömert B, Gökmen AN, Ergan B.
    Journal: Turk Thorac J; 2022 Nov; 23(6):403-408. PubMed ID: 36101982.
    Abstract:
    OBJECTIVE: The most appropriate ventilatory mode during fiberoptic bronchoscopy is still not yet known clearly for patients with acute respiratory distress syndrome. Airway pressure release ventilation is used as a recovery treatment for patients with severe acute respiratory distress syndrome. In this study, the aim was to evaluate the safety of the fiberoptic bronchoscopy process in patients with severe acute respiratory distress syndrome ventilated with airway pressure release ventilation mode and its effect on gas exchange and respiratory mechanics. MATERIAL AND METHODS: Single-center retrospective observational study was performed in the intensive care unit of a tertiary referral center from September 2018 to November 2019. Patients with severe ARDS ventilated with APRV mode and undergoing FB were included. Fiberoptic bronchoscopy was performed by an expert intensivist-pulmonologist. All ventilator parameters set by the clinician were kept stable, and no change was made other than O2 concentration. The mechanical ventilation parameters and arterial blood gas values before and after the procedure and fiberoptic bronchoscopy-related complications were recorded for the first 24 hours. RESULTS: A total of 14 acute respiratory distress syndrome patients who were ventilated with airway pressure release ventilation were enrolled. No significant deteriorations were detected in gas exchange, pulmonary compliance, and airway resistance values in our case series. It was observed that a small reduction in PaO2 and an increase in PaCO2 were present after the 1st hour; however, both were returned to baseline values in the 24th hour. Only 1 patient developed fiberoptic bronchoscopy-induced hypoxemia (7.1%). Complications, such as fiberoptic bronchoscopy-induced barotrauma, pneumothorax, hemodynamic deterioration, and bleeding, were not detected. CONCLUSION: According to our preliminary findings, performing fiberoptic bronchoscopy under airway pressure release ventilation mode by an experienced bronchoscopist does not bring additional complication risks in patients with severe acute respiratory distress syndrome.
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