DOI:
        10.1055/s-00025476
      
      
        Endoscopy International Open
      
      
        
          
            Issue 02 ·
           Volume 04 ·
           February 2016
            
          
           DOI: 10.1055/s-006-30997 
          
          
          
  
    
      
    
  
  
        
        
  
  
    
  
  
  
  
  
    
  
  
  
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
      
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
    
  
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
        
          
            
              
              
              
                
                  
                    
                    
                      
                          
                          
                            
                            Original article
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                            
                          
                          
                          
                          
  
  
    
      
        E112
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Loh, Kah Poh; 
              
            
          
            
              
              Nautsch, Deborah; 
              
            
          
            
              
              Mueller, James; 
              
            
          
            
              
              Desilets, David; 
              
            
          
            
              
              Mehendiratta, Vaibhav: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E143
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Yang, Dennis; 
              
            
          
            
              
              Summerlee, Robert; 
              
            
          
            
              
              Suarez, Alejandro L.; 
              
            
          
            
              
              Perbtani, Yaseen; 
              
            
          
            
              
              Williamson, J. Blair; 
              
            
          
            
              
              Shrode, Charles W.; 
              
            
          
            
              
              Gupte, Anand R.; 
              
            
          
            
              
              Chauhan, Shailendra S.; 
              
            
          
            
              
              Draganov, Peter V.; 
              
            
          
            
              
              Forsmark, Chris E.; 
              
            
          
            
              
              Wagh, Mihir S.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E151
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Sulbaran, Marianny; 
              
            
          
            
              
              de Moura, Eduardo; 
              
            
          
            
              
              Bernardo, Wanderley; 
              
            
          
            
              
              Morais, Cintia; 
              
            
          
            
              
              Oliveira, Joel; 
              
            
          
            
              
              Bustamante-Lopez, Leonardo; 
              
            
          
            
              
              Sakai, Paulo; 
              
            
          
            
              
              Mönkemüller, Klaus; 
              
            
          
            
              
              Safatle-Ribeiro, Adriana: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E164
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Hüneburg, Robert; 
              
            
          
            
              
              Kukuk, Guido; 
              
            
          
            
              
              Nattermann, Jacob; 
              
            
          
            
              
              Endler, Christoph; 
              
            
          
            
              
              Penner, Arndt-Hendrik; 
              
            
          
            
              
              Wolter, Karsten; 
              
            
          
            
              
              Schild, Hans; 
              
            
          
            
              
              Strassburg, Christian; 
              
            
          
            
              
              Sauerbruch, Tilman; 
              
            
          
            
              
              Schmitz, Volker; 
              
            
          
            
              
              Willinek, Winfried: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E170
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Suga, Tomoaki; 
              
            
          
            
              
              Okamura, Takuma; 
              
            
          
            
              
              Arakura, Norikazu; 
              
            
          
            
              
              Tanaka, Eiji: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E175
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Khashab, Mouen A.; 
              
            
          
            
              
              Messallam, Ahmed A.; 
              
            
          
            
              
              Penas, Irene; 
              
            
          
            
              
              Nakai, Yousuke; 
              
            
          
            
              
              Modayil, Rani J.; 
              
            
          
            
              
              De la Serna, Carlos; 
              
            
          
            
              
              Hara, Kazuo; 
              
            
          
            
              
              El Zein, Mohamad; 
              
            
          
            
              
              Stavropoulos, Stavros N.; 
              
            
          
            
              
              Perez-Miranda, Manuel; 
              
            
          
            
              
              Kumbhari, Vivek; 
              
            
          
            
              
              Ngamruengphong, Saowanee; 
              
            
          
            
              
              Dhir, Vinay K.; 
              
            
          
            
              
              Park, Do Hyun: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E182
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              van Doorn, Sascha C.; 
              
            
          
            
              
              Bastiaansen, Barbara A. J.; 
              
            
          
            
              
              Thomas-Gibson, Siwan; 
              
            
          
            
              
              Fockens, Paul; 
              
            
          
            
              
              Dekker, Evelien: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E193
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Thomas, Ashby; 
              
            
          
            
              
              Vamadevan, Arunan S; 
              
            
          
            
              
              Slattery, Eoin; 
              
            
          
            
              
              Sejpal, Divyesh V; 
              
            
          
            
              
              Trindade, Arvind J: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E198
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Mogilevski, Tamara; 
              
            
          
            
              
              Smith, Rebecca; 
              
            
          
            
              
              Johnson, Douglas; 
              
            
          
            
              
              Charles, Patrick G. P.; 
              
            
          
            
              
              Churilov, Leonid; 
              
            
          
            
              
              Vaughan, Rhys; 
              
            
          
            
              
              Ma, Ronald; 
              
            
          
            
              
              Testro, Adam: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E202
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
          
          
            
              
              Dufault, Darin L.; 
              
            
          
            
              
              Brock, Andrew S.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E205
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Bevan, Roisin; 
              
            
          
            
              
              Ngu, Wee Sing; 
              
            
          
            
              
              Saunders, Brian P.; 
              
            
          
            
              
              Tsiamoulos, Zacharias; 
              
            
          
            
              
              Bassett, Paul; 
              
            
          
            
              
              Hoare, Zoe; 
              
            
          
            
              
              Rees, Colin J.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E215
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Hale, Melissa F.; 
              
            
          
            
              
              Drew, Kaye; 
              
            
          
            
              
              Sidhu, Reena; 
              
            
          
            
              
              McAlindon, Mark E.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E222
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Lopez-Nava, G.; 
              
            
          
            
              
              Galvao, M.; 
              
            
          
            
              
              Bautista-Castaño, I.; 
              
            
          
            
              
              Fernandez-Corbelle, J. P.; 
              
            
          
            
              
              Trell, M.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E228
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Stanich, Peter P.; 
              
            
          
            
              
              Guido, John; 
              
            
          
            
              
              Kleinman, Bryan; 
              
            
          
            
              
              Betkerur, Kavita; 
              
            
          
            
              
              Porter, Kyle M.; 
              
            
          
            
              
              Meyer, Marty M.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E233
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Shimamura, Yuto; 
              
            
          
            
              
              Ishii, Naoki; 
              
            
          
            
              
              Omata, Fumio; 
              
            
          
            
              
              Imamura, Noriatsu; 
              
            
          
            
              
              Okamoto, Takeshi; 
              
            
          
            
              
              Ego, Mai; 
              
            
          
            
              
              Nakano, Kaoru; 
              
            
          
            
              
              Ikeya, Takashi; 
              
            
          
            
              
              Nakamura, Kenji; 
              
            
          
            
              
              Takagi, Koichi; 
              
            
          
            
              
              Fukuda, Katsuyuki; 
              
            
          
            
              
              Fujita, Yoshiyuki: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                            
                            Review
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                            
                          
                          
                          
                          
  
  
    
      
        E118
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Candas, Bernard; 
              
            
          
            
              
              Jobin, Gilles; 
              
            
          
            
              
              Dubé, Catherine; 
              
            
          
            
              
              Tousignant, Mario; 
              
            
          
            
              
              Abdeljelil, Anis Ben; 
              
            
          
            
              
              Grenier, Sonya; 
              
            
          
            
              
              Gagnon, Marie-Pierre: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E136
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Perbtani, Yaseen; 
              
            
          
            
              
              Suarez, Alejandro L.; 
              
            
          
            
              
              Wagh, Mihir S.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                            
                            Editorial
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                            
                          
                          
                          
                          
  
  
    
      
        E134
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
          
          
            
              
              Rutter, Matthew D.; 
              
            
          
            
              
              Beintaris, Iosif: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E149
      
    
  
  
  
                      
                          
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                          
                          
                          
  
  
    
      
        E213
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
          
          
            
              
              Koutsoumpas, Andreas; 
              
            
          
            
              
              East, James E.: 
              
            
          
      
    
    
    
    
      
      
        
      
      
        
        
        
      
    
    
      
    
    
    
    
    
    
    
      
    
   
                      
                          
                          
                            
                            Case report
                          
                          
                          
                          
                            
                          
                          
                            
                          
                          
                          
                            
                          
                          
                          
                          
  
  
    
      
        E190
      
    
  
  
  
    
    
    
      
    
    
      
        
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
            
              
            
          
          
          
            
              
              Kakushima, Naomi; 
              
            
          
            
              
              Takizawa, Kohei; 
              
            
          
            
              
              Tanaka, Masaki; 
              
            
          
            
              
              Kawata, Noboru; 
              
            
          
            
              
              Ito, Sayo; 
              
            
          
            
              
              Imai, Kenichiro; 
              
            
          
            
              
              Hotta, Kinichi; 
              
            
          
            
              
              Igarashi, Kimihiro; 
              
            
          
            
              
              Kishida, Yoshihiro; 
              
            
          
            
              
              Yoshida, Masao; 
              
            
          
            
              
              Matsubayashi, Hiroyuki; 
              
            
          
            
              
              Ono, Hiroyuki: