Direct clinical evidence for spinal hyperalgesia in a patient with irritable bowel syndrome.

OBJECTIVE: Our objective was to evaluate GI motor and sensory function and spinal cord testing in a patient with severe irritable bowel syndrome.
METHODS: A patient is described who underwent an extensive assessment of GI motor and sensory function including transit studies, colonic and rectal barostat studies, sensory and manometric studies of the small bowel, and colon and anorectal physiology testing. The patient also underwent testing with spinal cord stimulation and spinal drug delivery as part of a pain management assessment.
RESULTS: The viscerosomatic referral pain pattern resulting from rectal distention was consistent with spinal hyperalgesia. The patient underwent testing for spinal cord stimulation and spinal drug delivery.
CONCLUSION: This novel finding provides direct clinical evidence for the presence of spinal hyperalgesia in a patient with irritable bowel syndrome, consistent with the existing indirect clinical evidence and animal data.