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Emmanouil Vardas 3 Articles
Nodular Lymphoid Hyperplasia with Aggressive Endoscopic Appearance in the Colon of an Adult Woman
Maria Fragaki, Elpida Giannikaki, Emmanouil Vardas, Angeliki Theodoropoulou, Aikaterini Tavernaraki, Manousos Christodoulakis, Gregorios A. Paspatis
Clin Endosc 2017;50(2):209-210.   Published online May 4, 2016
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  • 9,397 View
  • 130 Download
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Use of a Double-Channel Gastroscope Reduces Procedural Time in Large Left-Sided Colonic Endoscopic Mucosal Resections
Evangelos Voudoukis, Georgios Tribonias, Aikaterini Tavernaraki, Angeliki Theodoropoulou, Emmanouil Vardas, Konstantina Paraskeva, Gregorios Chlouverakis, Gregorios A. Paspatis
Clin Endosc 2015;48(2):136-141.   Published online March 27, 2015
AbstractAbstract PDFPubReaderePub

Endoscopic mucosal resection (EMR) of large colorectal lesions is associated with increased procedural time. The objective of this study was to evaluate the effect of double-channel gastroscope (DCG) use on the procedural time of EMRs in the rectosigmoid area.


All EMRs for sessile or flat rectosigmoid lesions ≥2 cm performed between July 2011 and September 2012 were retrospectively analyzed.


There were 55 lesions ≥2 cm in the rectosigmoid area in 55 patients, of which 26 were removed by EMR using a DCG (DC group) and 29 by using an ordinary colonoscope or gastroscope (OS group). The mean size of the removed polyps, morphology, adverse effects, and other parameters were similar between the two groups. The mean procedural time was significantly lower in the DC group than in the OS group (24.4±18.3 minutes vs. 36.3±24.4 minutes, p=0.015). Moreover, in a subgroup of patients with polyps >40 mm, the statistical difference in the mean procedural time between the DC and OS groups was even more pronounced (33±21 minutes vs. 58.7±20.6 minutes, p=0.004).


Our data suggest that the use of a DCG in the resection of large nonpedunculated rectosigmoid lesions significantly reduces the procedural time.


Citations to this article as recorded by  
  • Dual Channel Endoscopic Mucosal Resection
    Julia T. Saraidaridis, Racquel S. Gaetani, Peter W. Marcello
    Clinics in Colon and Rectal Surgery.2023;[Epub]     CrossRef
  • Endoscopic management of difficult laterally spreading tumors in colorectum
    Edgar Castillo-Regalado, Hugo Uchima
    World Journal of Gastrointestinal Endoscopy.2022; 14(3): 113.     CrossRef
  • Novel technique for endoscopic en bloc resection (EMR+) – Evaluation in a porcine model
    Benjamin Meier, Andreas Wannhoff, Christoph Klinger, Karel Caca
    World Journal of Gastroenterology.2019; 25(28): 3764.     CrossRef
  • Endoscopic mucosal resection and endoscopic submucosal dissection for colorectal lesions: A systematic review
    Antonella De Ceglie, Cesare Hassan, Benedetto Mangiavillano, Takahisa Matsuda, Yutaka Saito, Lorenzo Ridola, Pradeep Bhandari, Federica Boeri, Massimo Conio
    Critical Reviews in Oncology/Hematology.2016; 104: 138.     CrossRef
  • Is the Double Channel Gastroscope Useful in Endoscopic Mucosal Resection for Large Sessile Colon Polyps?
    Kwang An Kwon
    Clinical Endoscopy.2015; 48(2): 89.     CrossRef
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  • 57 Download
  • 6 Web of Science
  • 5 Crossref
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Endoscopic Retrograde Cholangiopancreatography-Related Large Jejunal Perforation: Operate or Apply Over-the-Scope Clip Device?
George Tribonias, Evangelos Voudoukis, Emmanouil Vardas, Angeliki Theodoropoulou, Manola Margarita-Eleni, Gregorios Paspatis
Clin Endosc 2014;47(3):281-283.   Published online May 31, 2014


Citations to this article as recorded by  
  • Retracted: Endoscopic Treatment of Endoscopic Retrograde Cholangiopancreatography-Related Duodenal Perforations
    Ding Shi, Jian feng Yang, Yong pan Liu
    Journal of Laparoendoscopic & Advanced Surgical Techniques.2019; 29(3): 385.     CrossRef
  • 4,775 View
  • 49 Download
  • 2 Web of Science
  • 1 Crossref
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