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Oxygen desaturation during fiberoptic bronchoscopy
S Afsar1, A N Choudhri, A Talib
1Department of Medicine, Dow Medical College and Civil Hospital, Karachi.
JPMA. the Journal of the Pakistan Medical Association
|November 1, 1992
Summary
Supplemental oxygen significantly reduces the drop in blood oxygen saturation (SaO2) during fiberoptic bronchoscopy (FOB). Patients receiving oxygen during FOB experienced less SaO2 decline and faster recovery.
Area of Science:
- Pulmonology
- Respiratory Medicine
- Critical Care
Background:
- Fiberoptic bronchoscopy (FOB) is a common procedure.
- Monitoring oxygen saturation (SaO2) is crucial during FOB.
- Potential for SaO2 decline exists during FOB.
Purpose of the Study:
- To evaluate the effect of supplemental oxygen on SaO2 during FOB.
- To compare SaO2 levels in patients with and without supplemental oxygen during FOB.
- To assess the recovery time of SaO2 after FOB with and without oxygen.
Main Methods:
- Prospective study involving 50 patients undergoing FOB.
- Group 1 (25 patients): FOB without supplemental oxygen.
- Group 2 (25 patients): FOB with supplemental oxygen.
Main Results:
- SaO2 declined post-FOB: 96.4% baseline to 92.08% (Group 1) and 94.88% (Group 2).
- Lowest SaO2 values occurred during broncho-alveolar lavage (BAL).
- The SaO2 fall was significantly less in Group 2 (P < 0.05).
- SaO2 recovery to baseline: 4.9 min (Group 1) vs. 2.4 min (Group 2).
Conclusions:
- Supplemental oxygenation during FOB mitigates SaO2 reduction.
- Broncho-alveolar lavage is associated with the most significant SaO2 drops.
- Supplemental oxygen improves SaO2 recovery post-FOB.