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01.08.2011 | Case Report | Ausgabe 8/2011

European Archives of Oto-Rhino-Laryngology 8/2011

First-bite syndrome in oncologic patients

Zeitschrift:
European Archives of Oto-Rhino-Laryngology > Ausgabe 8/2011
Autoren:
Tiago Porfírio Costa, Carlos Eugenio Nabuco de Araujo, Joana Filipe, António Marques Pereira
Wichtige Hinweise
Presented at the 2nd International Federation of Head and Neck Oncologic Societies World Tour, Frankfurt, October 3-5, 2010.
Presented partially at the 57th National Congress of the Portuguese Otorhinolaryngology and Head and Neck Surgery Society, Cascais, Portugal, May 6-9, 2010.

Abstract

First-bite syndrome (FBS) is described as a complication of parapharyngeal space surgery and consists of short-term pain in the parotid or mandibular region at the start of each meal, usually on the first bite and improving with subsequently each bite. The pathogenesis is related to a selective sympathetic denervation of the parotid gland and its treatment involves dietary modifications, medical treatment or even surgery, all with poor results. FBS is often undervalued and misdiagnosed, yet it is a pathology that may interfere with the patient’s quality of life. We report two patients who underwent major cervical oncologic surgeries. One patient was subject to extended radical neck dissection into the parapharyngeal space and the other patient ligation of the external carotid artery, which post-operatively developed into FBS unresponsive to the medical treatment instituted. During external adjuvant radiotherapy, both had an unexpected FBS improvement, remaining asymptomatic after 7 and 10 months of follow-up. In this study, we discuss why FBS is misdiagnosed in oncologic patients, the possible pathophysiological mechanisms of radiotherapy and its plausibility as a new modality of treatment in selected cases.

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