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Laryngoscope. 2012 Jun;122(6):1331-4. doi: 10.1002/lary.23358. Epub 2012 Apr 12.

The physiologic impact of transnasal flexible endoscopy.

Author information

  • 1Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA. julinao@bcm.edu

Abstract

OBJECTIVES/HYPOTHESIS:

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 (O(2) sat).

STUDY DESIGN:

Prospective case control study, in which the patient is his/her control.

METHODS:

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.

RESULTS:

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 O(2) 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).

CONCLUSIONS:

Diagnostic TNFE and topical lidocaine can have an impact on physiologic parameters; however, these changes are unlikely to be clinically significant.

Copyright © 2012 The American Laryngological, Rhinological, and Otological Society, Inc.

PMID:
22499435
[PubMed - indexed for MEDLINE]
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