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Auris Nasus Larynx. 2008 Mar;35(1):109-13. Epub 2007 Sep 11.

First-bite syndrome: a review of 29 patients with parapharyngeal space tumor.

Author information

1
Department of Otolaryngology, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan. kawashima.oto@tmd.ac.jp

Abstract

OBJECTIVE:

The aim of this study is to clarify the etiology of first-bite syndrome.

METHODS:

A total of 29 consecutive patients treated with a surgical resection for parapharyngeal space tumor between April 1999 and April 2005 were retrospectively reviewed.

RESULTS:

Nine cases of first-bite syndrome were developed. Eight of those patients had undergone surgical ablation of the cervical sympathetic chain and/or external carotid artery. In two patients who underwent ablation of the sympathetic chain but in whom first-bite syndrome did not develop, the superior cervical ganglion was probably preserved.

CONCLUSION:

The present findings strongly indicate that loss of sympathetic innervation to the parotid gland from the superior cervical ganglion causes first-bite syndrome. They also suggest that some residual or autonomous activity of the superior cervical ganglion could prevent development of first-bite syndrome even if the lower sympathetic trunk was ablated.

PMID:
17851003
DOI:
10.1016/j.anl.2007.06.005
[Indexed for MEDLINE]

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