Endoscopic modified medial maxillectomyを施行した鼻副鼻腔疾患14例の検討

抄録

Background: Endoscopic modified medial maxillectomy (EMMM) is a surgical procedure that allows good visualization of the maxillary sinus and good operability, without requiring alteration of the morphology of the nasal cavity. Endoscopic medial maxillectomy involves resection of the lateral nasal wall, including the inferior turbinate and nasolacrimal duct, whereas EMMM enables preservation of the lateral nasal wall and the structures along it. Therefore, most patients undergoing EMMM recover without sequelae, such as epiphora and empty nose syndrome. Recently, EMMM has been reported as effective surgery for many maxillary sinus diseases.

Methods: We examined the data of 14 patients who underwent EMMM at Ehime Prefectural Niihama Hospital between November 2016 and December 2019. Their medical records were reviewed retrospectively.

Results: The indication for surgery was postoperative maxillary cyst in 7 patients, inverted papilloma in 4 patients and maxillary sinus fungus ball in 3 patients. There were no recurrences during a mean follow-up period of 11 months. Although two of the 14 patients exhibited temporary numbness of the upper teeth due to anterior superior alveolar nerve injury, their symptoms improved over several months. There were no further postoperative sequelae.

Conclusion: EMMM is a safe and effective surgical technique for the treatment of maxillary sinus diseases. EMMM allows expansion of the indications for endoscopic surgery.