[Clinical observation of highly selective vidian neurectomy guided by the palatovaginal canal].

Summarize the safety and feasibility of highly selective vidian neurectomy guided by the palatovaginal canal. Hypothermal plasma surgery was performed on 53 patients with perennial allergic rhinitis （PAR）. Remove the soft tissue covering the anterior wall of the sphenoid process of palatine bone using the Coblation system. Find the palatovaginal canal and cut off the neurovascular bundle in the palatovaginal canal. Expose the anterior orifice of the vidian canal and cut off the vidian nerve. 53 PAR patients have conducted the novel vidian neurectomy without sphenopalatine artery trunk damage. No secondary hemorrhage and hard palate numbness happened. The symptoms of nasal obstruction, sneeze, nasal discharge, and rhinocnesmus were relieved significantly. The simple and safe approach of highly selective vidian neurectomy guided by the palatovaginal canal provides an alternative surgical option for clinicians.