Volume 134, Issue 2 pp. 741-748
Original Report

5-Aminolevulinic Acid Fluorescence-Guided Surgery in Head and Neck Squamous Cell Carcinoma

Peter Filip MD

Corresponding Author

Peter Filip MD

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

Send correspondence to Peter Filip, Department of Otolaryngology, Icahn School of Medicine at Mount Sinai, Annenberg 10th Floor, 1 Gustave L. Levy Place, New York, NY 10029. Email: [email protected]

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David K. Lerner MD

David K. Lerner MD

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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Evan Kominsky BA

Evan Kominsky BA

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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Alexander Schupper MD

Alexander Schupper MD

Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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Katherine Liu MD

Katherine Liu MD

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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Nazir Mohemmed Khan MD

Nazir Mohemmed Khan MD

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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Scott Roof MD

Scott Roof MD

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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Constantinos Hadjipanayis MD

Constantinos Hadjipanayis MD

Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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Eric Genden MD

Eric Genden MD

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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Alfred M. C. Iloreta MD

Alfred M. C. Iloreta MD

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York City, New York, U.S.A.

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First published: 04 August 2023
Citations: 1
Editor's Note: This Manuscript was accepted for publication on July 4, 2023.

The authors have no other funding, financial relationships, or conflicts of interest to disclose.

Abstract

Objectives

To determine the utility of 5-aminolevulinic acid (5-ALA) fluorescence for resection of head and neck carcinoma.

Methods

In this prospective pilot trial, 5-ALA was administered as an oral suspension 3–5 h prior to induction of anesthesia for resection of head and neck squamous cell carcinoma (HNSCC). Following resection, 405 nm blue light was applied, and fluorescence of the tumor as well as the surgical bed was recorded. Specimen fluorescence intensity was graded categorically as none (score = 0), mild (1), moderate (2), or robust (3) by the operating surgeon intraoperatively and corroborated with final pathologic diagnosis.

Results

Seven patients underwent resection with 5-ALA. Five (83%) were male with an age range of 33–82 years (mean = 60). Sites included nasal cavity (n = 3), oral cavity (n = 3), and the larynx (n = 1). All specimens demonstrated robust fluorescence when 5-ALA was administered 3–5 h preoperatively. 5-ALA fluorescence predicted the presence of perineural invasion, a positive margin, and metastatic lymphadenopathy. Two patients had acute photosensitivity reactions, and one patient had a temporary elevation of hepatic enzymes.

Conclusions

5-ALA induces robust intraoperative fluorescence of HNSCC, capable of demonstrating a positive margin, perineural invasion, and metastatic nodal disease. Although no conclusions are there about the safety of this drug in the head and neck cancer population, our study parallels the extensive safety data in the neurosurgical literature. Future applications may include intraoperative assessment of margin status, diagnostic accuracy, and impacts on survival.

Level of Evidence

4 Laryngoscope, 134:741–748, 2024

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