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Tightness and pain following right inguinal hernia repair

October 7 2016 at 10:47 AM
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Any advice regarding my tightness and pain following right inguinal hernia repair performed in February 2016 will be appreciated. A large patch of Bovine biologic tissue ("Surgi-Mend") was used for the repair. I was initially pain free after the surgery, but increasingly, the tightness in the inguinal area along the incision line increased. It is mainly extreme tightness, but progresses to pain when driving a car or sitting for extended periods of time. I am being treated for scar tissue, but now wonder if there isn't a degree of nerve impingement or nerve entrapment. How can I distinguish between scar tissue pain and nerve pain? There is no shooting or radiating pain.

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SIN Syndrome

May 1 2017, 8:00 AM 

It has been researched in the field of pain medicine that SIN Syndrome may occur in a small percentage of patients. This is a chronic foreign body response to the mesh that will send pain signals constantly to brain. The brain responds producing more Nerve Growth Factor and sets up a cascading affect of pain. Basically, the nerves become really sensitive to pain and even minor issues with mesh cause major pain problems. The pain can also travel to other parts of the body as the NGF can be released into blood. It is usually recommended to remove the mesh and use body's tissue to repair hernia. This used to be the technique used by all surgeons before the mesh was pushed as the "gold standard". The mesh does decrease hernia recurrence, but also seems to cause pain in a subset of patients. Therefore, it is questionable whether the mesh should be used in patients who are experiencing chronic pain before surgery. They have a high percentage of SIN Syndrome and usually suffer many years until mesh is removed. There have been a number of suicides do to mesh pain syndromes. Therefore, it should be taken seriously by physicians despite the lack of training in chronic pain by most surgeons. The National Meshoma Foundation is a good place to start looking for answers.

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