Implantation of a Pudendal PNA Test Lead for Neuromodulation by the ENTRAMI Technique in Case of Chronic Perineal Pain Syndrome.

NCT ID: NCT03880786

Last Updated: 2022-03-04

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 21 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2019-01-08
• Study Completion Date: 2021-11-09

Brief Summary

Pudendal nerve release surgery in case of pudendal impingement syndrome is well described in literature.Pudendal nerve modulation in case of chronic perineal pain is also a promising technique and some small studies exist. However, in the latter group, patient inclusion criteria are very heterogenous and so conclusions about efficacy are difficult to draw. In the surgery group, outcome results also vary between the different approaches but in general, there is room for improvement. After pudendal nerve release in chronic perineal pain syndrome, it can take up to 6 months before improvement for the patient is recorded. This is partially due to the complex chronic pain syndrome mechanism.

Nothing is known about the possible effect of early neuromodulation at the level of the pudendal nerve after his release.

Recently, two cadaveric studies were published which described a minimal invasive trans gluteal approach for pudendal nerve decompression and a pudendal electrode placement.

In the present trial, the investigators would like to combine the endoscopic trans gluteal pudendal release with pudendal neuromodulation to improve the outcome for patients suffering from pudendal impingement syndrome.

The aim is to improve the results of pain score and quality of life of patients undergoing surgery for pudendal release in case of chronic perineal pain syndrome.

Conditions

Pudendal Impingement Syndrome

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

PNE test lead

Group Type: EXPERIMENTAL

pudendal PNE test lead

Intervention Type: DEVICE

All patients eligible for release surgery will be implanted a PNE test lead (Medtronic) which will be placed (transforaminal or transgluteally) next to the pudendal nerve, at the level of the ischial spine, after surgical release and connected to an external stimulation device. The PNE lead will be fixed at the ischial-spinal ligament with an absorbable suture to prevent dislocation. If a bilateral dissection is needed, bilateral test leads will be placed. Stimulation will be switched on at the second postoperative day, according to the sensory threshold described by the patient. After three weeks the PNE test lead will be removed at the outpatient clinical visit.

Interventions

pudendal PNE test lead

All patients eligible for release surgery will be implanted a PNE test lead (Medtronic) which will be placed (transforaminal or transgluteally) next to the pudendal nerve, at the level of the ischial spine, after surgical release and connected to an external stimulation device. The PNE lead will be fixed at the ischial-spinal ligament with an absorbable suture to prevent dislocation. If a bilateral dissection is needed, bilateral test leads will be placed. Stimulation will be switched on at the second postoperative day, according to the sensory threshold described by the patient. After three weeks the PNE test lead will be removed at the outpatient clinical visit.

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Candidates for release surgery
• Patients meeting the five Nantes criteria
• Chronic pain for more than 3 months

Exclusion Criteria

• Pregnancy
• Progressive neurological disease

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Brugmann University Hospital

OTHER

Sponsor Role: lead

Responsible Party

Katleen JOTTARD

Deputy Head of Clinic

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Katleen Jottard, MD

Role: PRINCIPAL_INVESTIGATOR

CHU Brugmann

Locations

CHU Brugmann

Brussels, , Belgium

Countries

Belgium

References

Robert R, Labat JJ, Bensignor M, Glemain P, Deschamps C, Raoul S, Hamel O. Decompression and transposition of the pudendal nerve in pudendal neuralgia: a randomized controlled trial and long-term evaluation. Eur Urol. 2005 Mar;47(3):403-8. doi: 10.1016/j.eururo.2004.09.003.

Reference Type: BACKGROUND

PMID: 15716208 (View on PubMed)

Possover M. Laparoscopic management of endopelvic etiologies of pudendal pain in 134 consecutive patients. J Urol. 2009 Apr;181(4):1732-6. doi: 10.1016/j.juro.2008.11.096. Epub 2009 Feb 23.

Reference Type: BACKGROUND

PMID: 19233408 (View on PubMed)

Beco J, Climov D, Bex M. Pudendal nerve decompression in perineology: a case series. BMC Surg. 2004 Oct 30;4:15. doi: 10.1186/1471-2482-4-15.

Reference Type: BACKGROUND

PMID: 15516268 (View on PubMed)

Heinze K, Hoermann R, Fritsch H, Dermietzel R, van Ophoven A. Comparative pilot study of implantation techniques for pudendal neuromodulation: technical and clinical outcome in first 20 patients with chronic pelvic pain. World J Urol. 2015 Feb;33(2):289-94. doi: 10.1007/s00345-014-1304-7. Epub 2014 Apr 29.

Reference Type: BACKGROUND

PMID: 24777254 (View on PubMed)

Peters KM, Killinger KA, Jaeger C, Chen C. Pilot Study Exploring Chronic Pudendal Neuromodulation as a Treatment Option for Pain Associated with Pudendal Neuralgia. Low Urin Tract Symptoms. 2015 Sep;7(3):138-42. doi: 10.1111/luts.12066. Epub 2014 Jul 8.

Reference Type: BACKGROUND

PMID: 26663728 (View on PubMed)

Ploteau S, Robert R, Bruyninx L, Rigaud J, Jottard K. A new endoscopic minimal invasive approach for pudendal nerve and inferior cluneal nerve neurolysis: An anatomical study. Neurourol Urodyn. 2018 Mar;37(3):971-977. doi: 10.1002/nau.23435. Epub 2017 Oct 26.

Reference Type: BACKGROUND

PMID: 29072775 (View on PubMed)

Jottard K, Bonnet P, Bruyninx L, Ploteau S, De Wachter S. The ENTRAMI technique: Endoscopic transgluteal minimal invasive technique for implantation of a pudendal electrode under full visual control: A cadaver study. Neurourol Urodyn. 2019 Jan;38(1):130-134. doi: 10.1002/nau.23850. Epub 2018 Oct 12.

Reference Type: BACKGROUND

PMID: 30311696 (View on PubMed)

Jottard K, Bruyninx L, Bonnet P, Mathieu N, De Wachter S. Pilot study: pudendal neuromodulation combined with pudendal nerve release in case of chronic perineal pain syndrome. The ENTRAMI technique: early results. Int Urogynecol J. 2021 Oct;32(10):2765-2770. doi: 10.1007/s00192-020-04565-1. Epub 2020 Oct 13.

Reference Type: DERIVED

PMID: 33048179 (View on PubMed)

Other Identifiers

CHUB-ENTRAMI

Identifier Type: -

Identifier Source: org_study_id