Volume 131, Issue 7 pp. E2222-E2231
Head and Neck

Evaluating Laryngopharyngeal Tumor Extension Using Narrow Band Imaging Versus Conventional White Light Imaging

Manon A. Zwakenberg MD

Corresponding Author

Manon A. Zwakenberg MD

Department of Otorhinolaryngology, Head and Neck Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Send correspondence to Manon A. Zwakenberg, Department of Otorhinolaryngology, Head and Neck Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700RB Groningen, The Netherlands. E-mail: [email protected].

Search for more papers by this author
Gyorgy B. Halmos MD, PhD

Gyorgy B. Halmos MD, PhD

Department of Otorhinolaryngology, Head and Neck Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Search for more papers by this author
Jan Wedman MD, PhD

Jan Wedman MD, PhD

Department of Otorhinolaryngology, Head and Neck Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Search for more papers by this author
Bernard F. A. M. van der Laan MD, PhD

Bernard F. A. M. van der Laan MD, PhD

Department of Otorhinolaryngology, Head and Neck Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Department of Otorhinolaryngology, Head and Neck Surgery, Haaglanden Medical Center, The Hague, The Netherlands

Search for more papers by this author
Boudewijn E. C. Plaat MD, PhD

Boudewijn E. C. Plaat MD, PhD

Department of Otorhinolaryngology, Head and Neck Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

Search for more papers by this author
First published: 04 January 2021
Citations: 6
Editor's Note: This Manuscript was accepted for publication on December 18, 2020
Medical equipment was supplied by Olympus Netherlands. Manon A. Zwakenberg's assignment during patient inclusion was being paid out of funds credited by an unrestricted educational grant from Olympus. Boudewijn E. C. Plaat has a consultancy role for and has received research funding from Olympus Medical Systems EU.
The authors have no other funding, financial relationships, or conflicts of interest to disclose.

Abstract

Objective/Hypothesis

Comparing detection and extension of malignant tumors by flexible laryngoscopy in the outpatient setting with laryngoscopy under general anesthesia using both White Light Imaging (WLI) and Narrow Band Imaging (NBI).

Study Design

Prospective study.

Methods

Two hundred and thirty-three patients with laryngeal and pharyngeal lesions underwent flexible and rigid laryngoscopy, with both WLI and NBI. Extension of malignant lesions (n = 132) was compared between both techniques in detail.

Results

Sensitivity of NBI during flexible endoscopy (92%), was comparable with that of WLI during rigid endoscopy (91%). The correlation of tumor extension between flexible and rigid laryngoscopy was high (rs = 0.852–0.893). The observed tumor extension was significantly larger when using NBI in both settings. The use of NBI during flexible laryngoscopy leads to upstaging (12%) and downstaging (2%) of the T classification.

Conclusions

NBI during flexible laryngoscopy could be an alternative to WLI rigid endoscopy. NBI improves visualization of tumor extension and accuracy of T staging.

Level of Evidence

3 Laryngoscope, 131:E2222–E2231, 2021

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.