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Bronchoscopy |

Prospective Randomized Trial Comparing Oxygen Administration During Nasal Flexible Bronchoscopy*: Oral vs Nasal Delivery

Trent W. McCain, MD; Donnie P. Dunagan, MD, FCCP; Norman E. Adair, MD, FCCP; Robert Chin, Jr., MD, FCCP
Author and Funding Information

*From the Department of Internal Medicine, Section of Pulmonary and Critical Care Medicine, Wake Forest University School of Medicine, Winston-Salem, NC.

Correspondence to: Robert Chin, Jr., MD, FCCP, Section of Pulmonary and Critical Care Medicine, Wake Forest University Baptist Medical Center, Medical Center Blvd, Winston-Salem, NC 27157-1054; e-mail: rchin@wfubmc.edu



Chest. 2001;120(5):1671-1674. doi:10.1378/chest.120.5.1671
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Published online

Study objectives: To determine the optimal method of delivering supplemental oxygen during flexible bronchoscopy (FB).

Design: Prospective study.

Setting: University medical center.

Patients: Ninety-seven consecutive patients undergoing outpatient nasal FB during a 7-month period.

Intervention: During FB, delivery of oxygen was alternated weekly and administered by nasal cannula either nasally (52 patients) or orally (45 patients). Prior to the procedure, patients completed a questionnaire regarding oral or nasal breathing preferences, history of sinus disease, allergy history, and perceived degree of nasal congestion.

Results: Comparison of oxygen delivery groups demonstrated no significant difference in oxygen requirements (4.1 L/min nasal vs 3.8 L/min oral, p = 0.63), overall saturation nadir (90.9% nasal vs 91.4% oral, p = 0.85), or average saturation (95.8% nasal vs 95.7% oral, p = 0.57). No correlation between subjective symptoms or sinus or allergy history was found for oxygen requirements, average saturation, or saturation nadir.

Conclusions: These data suggest that during nasal FB, no discernible difference exists between administration of oxygen using cannulas placed either nasally or orally.

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