The Lamella Ostium Extent Mucosa (LOEM) system: a new classification and pilot study for endoscopic sinus surgery.

ABSTRACT:

Purpose

This study proposes the Lamella Ostium Extent Mucosa (LOEM) system as a compact and user-friendly classification for endoscopic sinus surgery (ESS), based on surgical bone extension and mucosal management, aiming to resolve inconsistencies in describing surgical techniques and extension levels, and to enhance comparability of outcomes in chronic rhinosinusitis (CRS).

Methods

LOEM uses a lettering system representing a specific topographical level: L identifies the lamellae, O the ostia, E the opening of the sinus walls, and M the mucosal approach. Eleven CRS surgical cases were independently evaluated by seven rhinologists following a Delphi method in two consecutive rounds. Consensus was assessed using Cohen's kappa.

Results

A substantial agreement was found

SUBMITTER: Sanchez-Gomez S 

PROVIDER: S-EPMC11805853 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature