Reliability of Flexible Fiberoptic Bronchoscopy in Patients with Low Oxygen Saturation
Mehmet Özgel1*, Ahmet Erbey2 and Özgür Katrancıoğlu1
1Assistant Professor, Department of Thoracic Surgery, Malatya Training Research Hospital, Yesilyurt, Malatya, Turkey
2Malatya Training Research Hospital, Republic of Türkiye Ministry of Health, Yesilyurt, Malatya, Turkey
3Associate Professor, Department of Thoracic Surgery, Malatya Training Research Hospital, Yesilyurt, Malatya, Turkey
*Corresponding Author: Mehmet Özgel, Assistant Professor, Department of Thoracic Surgery, Malatya Training Research Hospital, Yesilyurt, Malatya, Turkey.
December 21, 2022; Published: July 11, 2023
Background: Flexible fiberoptic bronchoscopy (FOB) is used to diagnose and plan various respiratory diseases. During FOB, the peripheral oxygen value can decrease, increasing the risk of respiratory failure. Our aimed to evaluate the main indications and safety of FOB applied to patients with low, moderate, and high SO2 in our clinic.
Methods: In this single-centre retrospective study conducted in our clinic between 2016 and 2022, a power analysis was performed on 1512 patients who underwent FOB. As a result of the analysis, three groups of 67 people, each with low, medium, and high SO2, were formed. FOB was performed on 201 patients with low oxygen saturation (SO2<87%), medium oxygen saturation (87%<SO2<93%), and high oxygen saturation (SO2>92). The indications for the FOB procedure and the changing SO2 values before and after the procedure were uploaded to the SPSS program (Statistical Package for Social Sciences for Windows version 25 software). Since the patients' values did not show normal distribution, the data of the three groups were compared in pairs by applying the Mann-Whitney U Test.
Results: The mean age of the patients was 67 years ± 12.4 years. Patients underwent bronchoscopy for multiple reasons, such as mass 37.3%), parenchymal infiltration (26.4%), atelectasis (10.4%), chronic cough (5%), resistant bronchospasm (7.5%), tuberculosis (3%), haemoptysis (2.5%), and sarcoidosis (1.5%), and lymphoma (1.5%).
Complications had been seen in our patients after bronchoscopy are as follows; 1% massive haemoptysis, 5.97% arrhythmia, 3.48% pneumonia, 1% pneumothorax, 7.96% mucosal haemorrhage, 2.49% hypertension, 0.5% hypotension, and 7.96% epistaxis.
Mann-Whitney U Test was applied to all three groups, and no significant difference was found between smoking in pairs (p > 0.05). When comparing the SO2 differences of the groups with no difference in smoking, significant differences were found between Groups: I and II, Groups II and III, and Groups I and III (p < 0.05).
Conclusion: Regardless of the level of SO2, although there are problems that may develop in patients undergoing bronchoscopy, the risks that may develop before and after the procedure can be easily controlled with simple, predictable interventions by monitoring.
Keywords: Flexible Fiberoptic Bronchoscopy; Blood Oxygen Saturation; Hypoxia
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