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Neurology (Expert Forum)
Periodic sharp rectal pain in teen with L-P shunt
Answered by
Cleveland Clinic, MD - Neurology
Cleveland Clinic
Cleveland - OH
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Periodic sharp rectal pain in teen with L-P shunt
by mdpmdp, Jun 04, 2007 12:00AM
My daughter, 14, had an L-P shunt last May, after ICP and papilledema were not relieved with diamox. The cause of the ICP: venous sinus thrombosis, brought on by sinusitis and mastoiditis. She had a mastoidectomy, was on IV antibiotics + heparin. She also had dual ONSF, and 2 wks later an L-P shunt. This shunt was revised within a week, as MRI revealed "blood products" in the SC. It has been a year since hospital discharge, with no significant problems. HOWEVER, she gets "nerve pain" in her rectal area which had been constant/severe after shunt malfunction, and has gradually decreased, now occurs about 1x week,lasting for several minutes. This pain has not limited her,as she is back to competitive sports, miraculously, but we wish she had no pain. Do you think this pain will linger, due to the injury to her spinal cord caused by the bleeding after surgery? Do you have any suggestions? At our last follow-up visit to her neurosurgeon, he recommended an MRI to determine whether the shunt tubing was an issue. He wanted her to have another MRI two weeks later, but we declined that, as we encountered a patient who was on his 4th shunt surgery since last spring, and we do not want any more surgeries. My daughter has been off coumadin since August, after MRIs showed resolution of the CVST. The only medication she is still on is gabapentin (1500 mg/day, down from 2100 mg at discharge) and Zoloft for PTSD diagnosed after discharge.
Doctor's Answer
by Cleveland Clinic, MD, Oct 16, 2007 10:36AM
, Oct 16, 2007 10:36AM
First of all, I'm glad your daughter is feeling much better now. These episodes of "nerve pain" can be related to antibiotic use as mentioned above, there have been documented cases of rectal spasms due to dysfunction in the pelvic floor muscles that was linked to a variety of causes, that included use of some antibiotics. I understand your concern about more surgeries, but I think it is not a bad idea to at least check some images to make sure the tubing and all the hardware is okay. You can get the information first and then decide based on that what you want to do. I see the decrease need for Gabapentin as a positive thing, hopefully these episodes will continue to decrease in frequency. I would make sure she is getting enough support to deal with the depression/PTSD issue. pharmacology is helpful, but also counseling and having a strong social support system goes a long way.
I hope your daughter continues to feel better.
I hope your daughter continues to feel better.
It might be an idea to try to visualize where the distal end (the tip) of the shunt is.
As far as antibiotics - my daughter was on unisyn initially, then vancomycin, which was then switched to clindamycin and ceftriaxin, the last two for a total course of 4 weeks IV treatment.
As far as where the tubing is, the last x-ray and MRI showed I would say 4 feet of tubing length, which I was told was left in there to allow for growth. My daughter is slim, average height and build, and would have to be 7 feet tall and about 3 feet wide by my guess to need the amount of tubing that is in her. The neurosurgeon wondered if the shunt tubing may have entwined in such a way that it causes the pain. Honestly, as I said, I would love for their to be no pain whatsoever, but we fear additional surgery which would carry the risk of infection and other far worse complications than she is dealing with now. The pain truly does not last more than from several seconds to 3-4 minutes, and is probably less than once a week now. Since I posted the question intially, she has cut back on the Neurontin (gabapentin) and is now only taking 600mg/day, but her Zoloft dosage has increased from 25mg to 50 mg because of depression issues, which may be just from being a teenager, along with having gone through so much, and having some lasting vision issues. The vision issues are much, much less than had been forecast by many of her docs at the hospital, who expected that she would be virtually blind in one eye forever. A lot of her vision returned, and she is able to play sports, but does have less vision than before getting sick.
The idea that her rectal pain may be lingering effects of the antibiotics is interesting, and encouraging, really.
Thank you so much for your interest.