Tympanic neurectomy for parotid fistula

Area of Science:

• Otolaryngology
• Neurosurgery
• Surgical Anatomy

Background:

• Parotid fistulas cause significant patient distress.
• Complete excision of the parotid gland's secretomotor nerve supply abolishes salivary secretion and leads to gland atrophy.
• Tympanic neurectomy targets the tympanic nerve, a key component of the parasympathetic secretomotor supply to the parotid gland.

Purpose of the Study:

• To evaluate the efficacy of tympanic neurectomy in treating parotid fistulas.
• To describe the surgical technique and anatomical considerations for tympanic neurectomy.
• To compare tympanic neurectomy outcomes with alternative treatments for parotid fistulas.

Main Methods:

• Tympanic neurectomy was performed on 20 patients with parotid fistulas.
• The tympanic nerve was identified and excised at its emergence through the hypotympanic floor.
• Surgical technique emphasized proximal nerve excision due to early nerve branching observed in some cases.

Main Results:

• All patients observed for over two years achieved complete dryness and cure of their parotid fistulas.
• Tympanic neurectomy successfully abolished parotid salivary secretion in treated patients.
• Early division of the tympanic nerve was noted, highlighting the importance of proximal excision.

Conclusions:

• Tympanic neurectomy is an effective treatment for parotid fistulas.
• The surgical procedure provides a definitive cure by eliminating salivary secretion.
• Optimal results are achieved by excising the tympanic nerve as proximally as possible.