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  1. Article

    Open Access

    Endoscopic submucosal dissection with an additional working channel (ESD+): a novel technique to improve procedure time and safety of ESD

    A new external additional working channel (AWC) was recently introduced by which endoscopic submucosal dissection (ESD) can be converted to a technique termed “ESD+ ”. We aim to systematically evaluate this no...

    Richard F. Knoop, Edris Wedi, Golo Petzold, Sebastian C. B. Bremer in Surgical Endoscopy (2021)

  2. Article

    Open Access

    Endoscopic mucosal resection and endoscopic submucosal dissection with an external additional working channel (EMR+ and ESD+) are equivalent to using a double-channel endoscope: a systematic evaluation in a porcine ex vivo model

    With an external additional working channel (AWC) endoscopic mucosal resection (EMR) as well as endoscopic submucosal dissection (ESD) can be extended to techniques termed “EMR+” and “ESD+.” These novel techni...

    Richard F. Knoop, Ahmad Amanzada, Golo Petzold, Volker Ellenrieder in Surgical Endoscopy (2023)