Transcanal Endoscopic Management of Middle Ear Paragangliomas.

Objective: To evaluate the clinical and audiological outcomes of transcanal endoscopic resection of middle ear paragangliomas.

Study Design: Retrospective multicenter study.

Setting: Tertiary referral center and private otology clinic.

V1r + DIIq is a novel and accurate criterion to predict right vs. left paraseptal accessory pathways.

Purpose: The correct estimation of accessory pathway (AP) localization from surface ECG is critical before the procedure. Our study aimed to detect the predictive value of the V1r + DIIq criterion for differentiating right- from left-sided paraseptal APs.

Methods: We retrospectively included 58 patients with (Wolff-Parkinson-White) WPW syndrome and paraseptal APs who underwent successful catheter ablation (37 male, 21 female; mean age 34.