Case report: The feasibility of rTMS with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injury

The main objective of this study was to assess the efficacy and safety of 10 Hz repetitive transcranial magnetic stimulation (rTMS) for the treatment of unresolved neuropathic pain in an individual with spinal cord injury and an intrathecal baclofen pump. A 62-year-old male presented with drug resis...

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Main Authors: Stevie D. Foglia, Ravjot S. Rehsi, Claudia V. Turco, Harsha Shanthanna, Aimee J. Nelson
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Rehabilitation Sciences
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fresc.2022.893014/full
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author Stevie D. Foglia
Ravjot S. Rehsi
Claudia V. Turco
Harsha Shanthanna
Aimee J. Nelson
Aimee J. Nelson
author_facet Stevie D. Foglia
Ravjot S. Rehsi
Claudia V. Turco
Harsha Shanthanna
Aimee J. Nelson
Aimee J. Nelson
author_sort Stevie D. Foglia
collection DOAJ
description The main objective of this study was to assess the efficacy and safety of 10 Hz repetitive transcranial magnetic stimulation (rTMS) for the treatment of unresolved neuropathic pain in an individual with spinal cord injury and an intrathecal baclofen pump. A 62-year-old male presented with drug resistant neuropathic pain as a result of a complete spinal cord lesion at T8 level. Pain was classified into four types: pressure pain in the left foot, burning pain in buttocks, burning pain in sternum, and electrical attacks in the trunk. The treatment period involved 6 weeks of rTMS stimulation performed 5 days per week, a 6-week follow up period with no stimulation, and an 8-week top up session period which began 5-weeks after the end of the follow up period. 2004 pulses were delivered at 10Hz over the right-hand representation of the left primary motor cortex at 80% resting motor threshold during each session. Assessments were based on the numerical rating scale (NRS), neuropathic pain scale (NPS), Hamilton Depression and Anxiety rating scales. Following the treatment period there was a 30, 13, and 29% reduction in sternum, buttocks, and left foot pain respectively, as reported by the NRS. During this time, electrical attacks were abolished following the third week of treatment. These changes corresponded to a 38% decrease in NPS scores and a 65 and 25% reduction in anxiety and depressions scores respectively. The changes in sternum, buttocks, and left foot pain reported on the NRS persisted for 1 week following treatment. Top up sessions delivered 11 weeks after the end of the treatment period were unsuccessful in reducing pain to the level achieved during the treatment period. A 13% reduction in NPS was seen during these 8-weeks. Anxiety and depression scores decreased 78 and 67% respectively. The frequency of electrical attacks was zero during this time. rTMS stimulation delivered throughout this study did not cause any interference with the functioning of the intrathecal baclofen pump. This case study illustrates that rTMS may be effective at reducing drug resistant neuropathic pain with certain pain types exhibiting greater propensity for change.
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spelling doaj.art-06b240daccf545f3b4d442d7390f0b8a2023-01-03T05:46:41ZengFrontiers Media S.A.Frontiers in Rehabilitation Sciences2673-68612022-07-01310.3389/fresc.2022.893014893014Case report: The feasibility of rTMS with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injuryStevie D. Foglia0Ravjot S. Rehsi1Claudia V. Turco2Harsha Shanthanna3Aimee J. Nelson4Aimee J. Nelson5School of Biomedical Engineering, McMaster University, Hamilton, ON, CanadaDepartment of Kinesiology, McMaster University, Hamilton, ON, CanadaFaculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, CanadaFaculty of Health Sciences, McMaster University, Hamilton, ON, CanadaSchool of Biomedical Engineering, McMaster University, Hamilton, ON, CanadaDepartment of Kinesiology, McMaster University, Hamilton, ON, CanadaThe main objective of this study was to assess the efficacy and safety of 10 Hz repetitive transcranial magnetic stimulation (rTMS) for the treatment of unresolved neuropathic pain in an individual with spinal cord injury and an intrathecal baclofen pump. A 62-year-old male presented with drug resistant neuropathic pain as a result of a complete spinal cord lesion at T8 level. Pain was classified into four types: pressure pain in the left foot, burning pain in buttocks, burning pain in sternum, and electrical attacks in the trunk. The treatment period involved 6 weeks of rTMS stimulation performed 5 days per week, a 6-week follow up period with no stimulation, and an 8-week top up session period which began 5-weeks after the end of the follow up period. 2004 pulses were delivered at 10Hz over the right-hand representation of the left primary motor cortex at 80% resting motor threshold during each session. Assessments were based on the numerical rating scale (NRS), neuropathic pain scale (NPS), Hamilton Depression and Anxiety rating scales. Following the treatment period there was a 30, 13, and 29% reduction in sternum, buttocks, and left foot pain respectively, as reported by the NRS. During this time, electrical attacks were abolished following the third week of treatment. These changes corresponded to a 38% decrease in NPS scores and a 65 and 25% reduction in anxiety and depressions scores respectively. The changes in sternum, buttocks, and left foot pain reported on the NRS persisted for 1 week following treatment. Top up sessions delivered 11 weeks after the end of the treatment period were unsuccessful in reducing pain to the level achieved during the treatment period. A 13% reduction in NPS was seen during these 8-weeks. Anxiety and depression scores decreased 78 and 67% respectively. The frequency of electrical attacks was zero during this time. rTMS stimulation delivered throughout this study did not cause any interference with the functioning of the intrathecal baclofen pump. This case study illustrates that rTMS may be effective at reducing drug resistant neuropathic pain with certain pain types exhibiting greater propensity for change.https://www.frontiersin.org/articles/10.3389/fresc.2022.893014/fullneuropathic painrepetitive transcranial magnetic simulationrTMSbaclofen pumpintrathecal pumpspinal cord injury
spellingShingle Stevie D. Foglia
Ravjot S. Rehsi
Claudia V. Turco
Harsha Shanthanna
Aimee J. Nelson
Aimee J. Nelson
Case report: The feasibility of rTMS with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injury
Frontiers in Rehabilitation Sciences
neuropathic pain
repetitive transcranial magnetic simulation
rTMS
baclofen pump
intrathecal pump
spinal cord injury
title Case report: The feasibility of rTMS with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injury
title_full Case report: The feasibility of rTMS with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injury
title_fullStr Case report: The feasibility of rTMS with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injury
title_full_unstemmed Case report: The feasibility of rTMS with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injury
title_short Case report: The feasibility of rTMS with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injury
title_sort case report the feasibility of rtms with intrathecal baclofen pump for the treatment of unresolved neuropathic pain following spinal cord injury
topic neuropathic pain
repetitive transcranial magnetic simulation
rTMS
baclofen pump
intrathecal pump
spinal cord injury
url https://www.frontiersin.org/articles/10.3389/fresc.2022.893014/full
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