Efficacy of Endoscopic Posterior Nasal Neurectomy in Treating Eosinophilic Chronic Rhinosinusitis

<b><i>Objectives:</i></b> Recent guidelines have revealed that eosinophilic chronic rhinosinusitis (ECRS) exhibits a strong tendency for recurrence after surgery and impairs quality of life. Neuropeptides play an important neuroimmunological role. The aim of this study was to determine the efficacy of posterior nasal neurectomy (PNN) for the treatment of ECRS by inhibiting type 2 cytokine expression. <b><i>Methods:</i></b> Forty-six patients were divided into group A and group B according to a random number table. Group A underwent conventional functional endoscopic sinusitis surgery (FESS) combined with PNN, and group B underwent conventional FESS alone. The subjective and objective symptoms included a 10-cm visual analog scale (VAS), 22-item SinoNasal Outcome Test (SNOT-22) score, nasal speculum Lund-Kennedy score, and paranasal sinus computed tomography (CT) Lund-Mackay score at the 1-year postoperative follow-up. <b><i>Results:</i></b> Postoperative VAS (10.33 ± 2.18 vs. 8.38 ± 2.11, <i>p</i> &#x3c; 0.01) and Lund-Kennedy score (1.95 ± 1.32 vs. 3.14 ± 1.35, <i>p</i> &#x3c; 0.01) were significantly improved. The rhinorrhea score (1.76 ± 0.83 vs. 2.90 ± 1.14, <i>p</i> &#x3c; 0.001) in the VAS and the discharge (0.43 ± 0.51, vs. 0.95 ± 0.67, <i>p</i> &#x3c; 0.01) and edema (0.57 ± 0.60 vs. 0.95 ± 0.59, <i>p</i> &#x3c; 0.05) scores in the Lund-Kennedy score were observed to have improved significantly in group A compared with those in group B. <b><i>Conclusions:</i></b> FESS combined with PNN suppresses edema symptoms, which might significantly decrease the surgical recurrence rate of ECRS in the long term.