Postoperative ethmoid sinus mucoceles
The present study demonstrates the safety and efficacy of intranasal endoscopic microwave ablation (MWA) in the office. The study was published in the American Journal of Otolaryngology.

The aim of this study was to investigate the feasibility of intranasal endoscopic microwave ablation (MWA) on the management of postoperative ethmoid sinus mucoceles.

The patients with postoperative ethmoid sinus mucoceles were ablated through intranasal endoscopic MWA. Postoperative pain intensity was measured via a visual analog scale (VAS), postoperative complications were recorded.

Of the 26 patients with unilateral postoperative ethmoid sinus mucoceles, the mucoceles were diagnosed 3 to 11 years with an average time of 6.9 ± 2.7 years after endoscopic ethmoidectomy.

- The ipsilateral middle turbinate was present and intact in 24 patients and partially resected during the original surgery in the remaining 2. There were adhesions in the middle meatus in one case.

- All 26 patients were successfully treated with the intranasal endoscopic ablation technique in outpatient.

- The ablation time was 6 to 11 min, with an average duration of 6.84 ± 1.27 min.

- The mean VAS pain score was 2.41 ± 1.22. There were no perioperative complications reported in this series. No evidence of recurrence was observed in any patients during follow-up periods.

In particular, the procedure is well tolerated by patients with low complication rates. Thus, it is an alternative to conventional endonasal endoscopic marsupialization for the treatment of postsurgical ethmoid sinus mucoceles.

Source: https://doi.org/10.1016/j.amjoto.2021.103120
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