The authors have no funding, financial relationships, or conflicts of interest to disclose.
The physiologic impact of transnasal flexible endoscopy†
Version of Record online: 12 APR 2012
Copyright © 2012 The American Laryngological, Rhinological, and Otological Society, Inc.
Volume 122, Issue 6, pages 1331–1334, June 2012
How to Cite
Ongkasuwan, J., Yung, K. C. and Courey, M. S. (2012), The physiologic impact of transnasal flexible endoscopy. The Laryngoscope, 122: 1331–1334. doi: 10.1002/lary.23358
- Issue online: 1 JUN 2012
- Version of Record online: 12 APR 2012
- Manuscript Accepted: 26 MAR 2012
- Manuscript Received: 5 MAR 2012
- Flexible transnasal endoscopy;
- Level of Evidence: 3b
Diagnostic transnasal flexible endoscopy (TNFE) is a commonly used office procedure in otolaryngology. Currently there is a paucity of data on the impact of TNFE on physiologic parameters. This is relevant with the advent of office-based endoscopic procedures. The goal of this study is to measure the impact of topical decongestion, anesthesia, and diagnostic TNFE on vital signs: systolic blood pressure (SBP) and diastolic blood pressure (DBP), heart rate (HR), and oxygenation (O2 sat).
Prospective case control study, in which the patient is his/her control.
Vital signs were obtained at baseline, immediately after the application of Neosynephrine, after the application of lidocaine, 5 minutes later, with the scope in the nasopharynx and hypopharynx, and upon completion of the procedure.
Compared to the baseline data, there was a statistically significant increase in HR after the procedure (mean change, 4.06 ± 10.15 bpm; range, −14 to 42 bpm, P = .01). There was also a change in O2 sat (mean change, 0.42% ± 1.36%; range −3% to 3%, P = .03) after the application of lidocaine. When comparing each data point to the preceding point, there was a statistically significant change in SBP with the scope in the nasopharynx (mean change, 5.34 ± 10.65 mm Hg; range, −22 to 28 mm Hg, P = .001) and in HR with the scope in the hypopharynx (mean change, 3.76 ± 6.41 bpm; range, −9 to 19 bpm, P = .0004).
Diagnostic TNFE and topical lidocaine can have an impact on physiologic parameters; however, these changes are unlikely to be clinically significant.