double-balloon enteroscopy (push & pull enteroscopy)

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Procedure

balloons are attached to the distal ends of an enteroscope & a transparent tube that slides over it
the balloons are inflated to contact the small intestine & pull it over the enteroscope, allowing visualization of long portions of the small intestine
the enteroscope may be inserted orally to visualize proximal small intestine or rectally to visualize distal small intestine

↑ Sun B et al, Diagnostic yield and therapeutic impact of double-balloon enteroscopy in a large cohort of patients with obscure gastrointestinal bleeding. Am J Gastroenterol 2006, 101:2011 PMID: https://www.ncbi.nlm.nih.gov/pubmed/16848814
May et al, Prospective comparison of push enteroscopy and push-and-pull enteroscopy in patients with suspected small-bowel bleeding. Am J Gastroenterol 2006, 101:2016 <PubMed> PMID: https://www.ncbi.nlm.nih.gov/pubmed/16968508 <Internet> http://dave1.mgh.harvard.edu/Viewfilms.cfm?Film_id=333