I have seen a image with the scope  after Bil Ii by Dr Nageswar Reddy at Asian Institute of gastroenterology at Hyderabad, India,

I completely agree with Doctor Ossama Mohamed Zakaria, is really not an easy job.

En mi Hospital existe una gran experiencia con la enteroscopia de doble balón (DBE). Utilizando la DBE es posible llegar al duodeno para efectuar ERCP tras Billroth-II o incluso tras bypass gástrico por cirugía bariátrica. Por supuesto, el procedimiento no es sencillo.

Thank you

Dr Aswini Kumar Pujahari, Ossama Mohamed Zakaria, Giorgio Vasquez, and Jose Luis.

Up To Date just published a current review on this topic a few days ago "ERCP after Billroth II Reconstruction" by authors:

Guido Costamagna, MD, FACGGuido Costamagna, MD, FACG

Professor of Surgery

Universita Cattolica del Sacro Cuore, Rome

Silvano Loperfido, MDSilvano Loperfido, MD

Consultant of Gastroenterology

Hospital Giovanni XXIII, Monastier di Treviso

Treviso, Italy

Pietro Familiari, MD, PhD

http://www.uptodate.com/contents/endoscopic-retrograde-cholangiopancreatography-ercp-after-billroth-ii-reconstruction

Unfortunately, it requires paid subscription.

Thank you, Dr James Bowman