An observational study in Hernia, sponsored by University of California, Los Angeles. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-07-11.
Sponsored by University of California, Los Angeles · Observational
Increasing experience has identified post-herniorraphy chronic pain as an under-recognized and important complication. Nerve entrapment and injury are recognized as causes of such pain. Operative treatment for selected patients with this condition includes surgical exploration of the affected groin, identification and removal of involved nerves, and removal of meshoma. This procedure has been highly effective in treatment of chronic pain. This study will attempt to subjectively and objectively evaluate the patient's chronic groin pain using quantitative sensory testing (QST) and validated pain scales and questionnaires. Quantitative sensory testing is a method used to assess damage to the small and large nerve fibers. It is used to diagnose and assess the severity of nerve damage, and can also help to determine if a neuropathy is responding to treatment. QST uses a computer testing system to measure how nerves react to vibration and changes in temperature. The procedure is non-invasive and the patient will feel minimal to no discomfort during testing. The hypothesis is that any decrease in subjective pain scores would be accompanied by improved QST results.
Background: Chronic postherniorrhaphy inguinal pain is a complex, major health problem. In the absence of recurrence or meshoma, laparoscopic retroperitoneal triple neurectomy has emerged as an effective surgical treatment of postherniorrhaphy inguinal pain. Methods: This prospective pilot study evaluated the neurophysiological and clinical effects of laparoscopic retroperitoneal triple neurectomy. Ten consecutive adult with chronic postherniorrhaphy inguinal pain and unilateral predominantly neuropathic inguinodynia underwent three comprehensive quantitative sensory testing assessments (preoperative, immediate postoperative, and late postoperative). Pain severity, health-related function, and sleep quality were assessed over the course of a 6-month follow-up period.
1,096 studies on the registry are indexed under Hernia; 132 are open to participants now.
This study's enrollment of 10 is below the median of 120 across 327 observational studies indexed under Hernia.
Browse Hernia studies →University of California, Los Angeles is the lead sponsor of 1,142 studies on the registry; 192 are open to participants now.
Of its 91 completed or terminated interventional studies of FDA-regulated products, 66 (73%) have results posted.
Counted across the registry records on this site, refreshed daily.
Patients with chronic pain occuring after groin hernia repair who are surgical candidates for mesh removal and triple neurectomy.
Exclusion Criteria:
patients with severe chronic post-herniorraphy pain
Procedure: Quantitative Sensory Testing
Quantitative Sensory Testing and Neurophysiologic Testing to be done Pre-operatively and at 3 and 6 months post-operatively.
changes in quantitative sensory testing and neurophysiologic testing pre-operatively, and at 3-month and 6-month intervals post-operatively
Time frame: 6 months
changes in Visual Nociceptive Pain Scores, McGill Pain Questionnaire, Activity Assessment Scale, and SF-36 scale pre-operatively and 3-month, 6-month, and 9-months post-operatively
Time frame: 9 months
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in Jul 2016. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
University of California, Los Angeles