Mechanisms of physiological gustatory sweating and flushing were investigated in 21 patients with a facial nerve lesion compromising parasympathetic outflow to the lacrimal gland, and in 13 patients undergoing diagnostic blockade of the stellate ganglion. Vascular responses and electrodermal activity (which reflects sweating) were monitored on each side of the forehead before and during gustatory stimulation with chillies or Tabasco sauce (derived from chillies). Vascular responses in the cheeks were also monitored in 14 patients with a facial nerve lesion. Sympathetic blockade increased gustatory vasodilatation but prevented gustatory sweating on the blocked side of the forehead. A facial nerve lesion did not affect gustatory sweating in the forehead or vasodilatation in the cheeks. However, a facial nerve lesion impaired vasodilatation in the forehead in all six patients who ate chillies, and also in four of five patients whose blood vessels dilated extensively on the normally-innervated side of the forehead when the patients tasted Tabasco sauce. These findings suggest that sympathetic sudomotor activity mediates physiological gustatory sweating in the forehead, whereas sympathetic vasoconstrictor tone inhibits gustatory vasodilatation in the forehead. A parasympathetic vasodilator reflex in the facial nerve contributes actively to gustatory flushing in the forehead, but some other unidentified mechanism influences vascular responses in the cheeks.
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http://dx.doi.org/10.1016/0165-1838(94)00151-9 | DOI Listing |
J Clin Med
January 2025
Head and Neck Department, Azienda Ospedaliera Universitaria Integrata di Verona, Piazzale Aristide Stefani, 1, 37126 Verona, Italy.
Frey's syndrome surgical treatment may be either prophylactic or therapeutic. The aim of this study is to summarize the state of the art in Frey's syndrome surgical treatment after parotidectomy and review indications, advantages, and disadvantages of different surgical options. The study was conducted following the PRISMA guidelines for scoping reviews; to fulfill the research enquiries, four different electronic databases (PubMed, Scopus, Cochrane, and Web of Science) were searched using the PICO protocol and key words in Frey's syndrome surgical treatment.
View Article and Find Full Text PDFJ Clin Med
January 2025
Department of Thoracic Surgery, Fondazione Policlinico Universitario A. Gemelli-IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.
: Endoscopic thoracic sympathetic chain clipping (ETSC) is a definitive treatment for primary palmar and/or axillary hyperhidrosis (PPAH); however, compensatory sweating (CS) remains a feared complication. The aims of this study were to investigate the factors associated with CS and satisfaction with the treatment and to evaluate the post-operative quality of life (QoL). : From January 2011 to August 2023, 180 patients who had undergone two-stage ETSC were prospectively asked to complete pre- and post-operative questionnaires on satisfaction, CS, and QoL in several daily activities.
View Article and Find Full Text PDFStomatologiia (Mosk)
January 2025
Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia.
Frey syndrome is a late complication after parotidectomy and represents an aberrant regeneration of the auricular nerve after its damage. The degree of manifestation can vary from minor hyperemia to the inability to eat in public places. As it turned out, the etiology of this syndrome is much broader than we might have assumed, as evidenced by the data of domestic and foreign literature.
View Article and Find Full Text PDFBMC Surg
November 2024
General Practice, People's Hospital of Anshun City, Guizhou, 561000, China.
Background: This study aimed to analyze the effects of anterior descending mandible (ADM) and free superior mesenteric artery (SMAS) folding flaps on post-parotidectomy facial depression.
Methods: This retrospective study examined the effects of sex, age, surgical sample size, method, duration, and blood loss on postoperative complications in 65 patients.
Results: No significant differences involving sex, age, or sample size for surgical resection were observed between the two groups.
N Engl J Med
September 2024
Tri-Service General Hospital, Taipei, Taiwan
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