Interventional procedure overview of cryotherapy for chronic rhinitis
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What the procedure involves
This procedure is done under local anaesthesia. A probe is inserted into the nasal cavity, and the balloon tip is placed endoscopically in the posterior middle meatus. Once the tip is in contact with the targeted tissue over the branches of the posterior nasal nerve, nitrous oxide cryogen is released through the tip from the canister. This freezes the targeted mucosal tissue, with the aim of ablating the posterior nasal nerve. Cryogen is delivered for 30 to 60 seconds and the contralateral side is treated the same way if needed.
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