Volume 43, Issue 3 pp. 949-955
ORIGINAL ARTICLE

Not only gustatory sweating and flushing: Signs and symptoms associated to the Frey syndrome and the role of botulinum toxin A therapy

Maria Raffaella Marchese

Corresponding Author

Maria Raffaella Marchese

Division of Otorhinolaryngology, Department of Aging, Neuroscience, Orthopedics and Head and Neck Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy

Correspondence

Maria Raffaella Marchese, Division of Otorhinolaryngology, Department of Aging, Neuroscience, Orthopedics and Head and Neck Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, L.go “A. Gemelli,” 8-00168 Rome, Italy.

Email: [email protected]

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Francesco Bussu

Francesco Bussu

Division of Otolaryngology, Azienda Ospedaliero Universitaria di Sassari, Sassari, Italy

Division of Otolaryngology, Università di Sassari, Sassari, Italy

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Stefano Settimi

Stefano Settimi

Division of Otorhinolaryngology, Department of Aging, Neuroscience, Orthopedics and Head and Neck Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy

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Emanuele Scarano

Emanuele Scarano

Division of Otolaryngology, Azienda Ospedaliera Pia Fondazione di Culto e Religione Cardinale G. Panico, Tricase, Italy

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Giovanni Almadori

Giovanni Almadori

Division of Otorhinolaryngology, Department of Aging, Neuroscience, Orthopedics and Head and Neck Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy

Division of Otorhinolaryngology, Università Cattolica del Sacro Cuore, Rome, Italy

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Jacopo Galli

Jacopo Galli

Division of Otorhinolaryngology, Department of Aging, Neuroscience, Orthopedics and Head and Neck Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy

Division of Otorhinolaryngology, Università Cattolica del Sacro Cuore, Rome, Italy

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First published: 28 November 2020
Citations: 10

Abstract

Background

The classic symptoms of Frey syndrome are gustatory sweating and flushing. Aims of the study were to describe prevalenceand severity of typical and atypical presentations of the disorder and to assess the effects of botulinum neurotoxin A (BoNT-A) therapy in patients with Frey syndrome after parotidectomy.

Methods

In this prospective, observational study on 18 patients, we assessed symptom severity before therapy, after 15 days, 1, 3 and 6 months' follow-up with the sweating-flushing-itch-paresthesia-pain (SFIPP) Frey scale specifically designed by the authors themselves for this study.

Results

Before BoNT-A injection, all patients (100%) complained gustatory sweating, 80% paresthesia, 77% gustatory flushing, 60% pain and 60% gustatory itch. The SFIPP-Frey overall score and the symptom-specific ones decreased significantly at each post-therapy control.

Conclusions

The prevalence of “unusual” manifestations is not negligible. BoNT-A improves symptoms severity. The SFIPP-Frey scale may be useful to assess symptoms and to monitor post-therapy outcomes.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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