Another location prone to injury is the blind loop
of the Roux limb, which has no direct exit (Figure 4) (11).
reported a case where the fistula originated from the efferent blind loop
of the pouch.
A predisposition to SIBO exists in diverse conditions where there is altered anatomy from prior surgery (eg, blind loop syndrome) or stricture or where there is impaired gut motility and prolonged orocecal transit time.
The presence of a blind loop was significantly more frequent in the SIBO group than in controls (12% [8 of 67] vs 2% [1 of 55]; P =.
Pseudo-obstruction, blind loop
syndrome, jejunal dyskinesia, chronic diverticulitis complicated by the formation of enterolith, and vitamin B-12 malabsorption secondary to chronic stasis and bacterial overgrowth within the jejunal diverticula have also been reported.
Symptoms may be vague because a small-bowel obstruction may initially decompress into the blind loop
and stomach remnant.
As Jon Beckwith commented in his book Making Genes, Making Waves, such reports rarely describe the actual path to discovery, with its serendipitous progress, blind loops
, disappointments, and exhilaration (8).