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A. Machado - J. Pereira - F. Alvarez - H.R. Briner - D. Simmen

BACKGROUND: The prelacrimal window approach (PLWA) is a minimally invasive surgical technique that has been proposed as an alternative to the traditional approaches to access the maxillary sinus.
METHODOLOGY: A systematic review with meta-analysis was performed following PRISMA guidelines and identified 368 articles for initial review of which 14 (610 participants) met the criteria for meta-analysis. Four databases, including PubMed, Google Scholar, Web of Science and Scopus, were searched to identify relevant articles. Two independent reviewers conducted the eligibility assessment for the included studies. Methodology quality and risk of bias were evaluated by New Castle Ottawa scale. The outcomes assessed were recurrence of the pathology, postoperative morbidity including epiphora, dry nose, facial, gingival numbness, epistaxis or local infection.
RESULTS: The present data suggest a significant reduction in the recurrence rate of maxillary sinus pathology following PLWA when compared to conventional surgery (endoscopic medial maxillectomy, endoscopic sinus surgery and the Caldwell–Luc operation). The rates of epiphora, facial or gingival numbness, epistaxis or infection requiring intervention, were not significantly different between the procedures.
CONCLUSIONS: Maxillary sinus pathology can be effectively treated using the PLWA technique, as it has been shown to result in a lower recurrence rate compared to conventional surgeries.

Rhinology 0-0: 0-0, 0000