Cargando…
Failure of SCS MR-Conditional Modes Due to High Impedance: A Review of Literature and Case Series
INTRODUCTION: Magnetic resonance imaging (MRI) conditional modes are a novel feature for certain Food and Drug Administration (FDA)-approved spinal cord stimulation (SCS) devices. However, there is a paucity of literature around the limitation of MRI-conditional modes (“MRI safe”), specifically in c...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Healthcare
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8119585/ https://www.ncbi.nlm.nih.gov/pubmed/33219927 http://dx.doi.org/10.1007/s40122-020-00219-8 |
_version_ | 1783691884823052288 |
---|---|
author | Jotwani, Rohan Abd-Elsayed, Alaa Villegas, Kristine Shakil, Ahmed Gulati, Amitabh Sayed, Dawood Lam, Christopher Mehta, Neel |
author_facet | Jotwani, Rohan Abd-Elsayed, Alaa Villegas, Kristine Shakil, Ahmed Gulati, Amitabh Sayed, Dawood Lam, Christopher Mehta, Neel |
author_sort | Jotwani, Rohan |
collection | PubMed |
description | INTRODUCTION: Magnetic resonance imaging (MRI) conditional modes are a novel feature for certain Food and Drug Administration (FDA)-approved spinal cord stimulation (SCS) devices. However, there is a paucity of literature around the limitation of MRI-conditional modes (“MRI safe”), specifically in clinical scenarios where urgent MRIs may be needed. One such limitation is load impedance, referring to the circuit’s resistance to the current being generated by the system. High impedance can limit the MRI-conditional mode capability, presenting potential harm to a patient undergoing an MRI or make an MRI unable to be completed. METHODS: Three cases were identified, and informed consent was obtained. All information was obtained via retrospective chart review. RESULTS: In this case series of three patients where MRI-conditional SCS systems were unable to be placed in “MRI safe” settings, preventing timely MRI study completion in the setting of high impedance, all three were required to undergo alternative imaging including CT scans, and two patients ultimately had the system explanted and one chose to be re-implanted after completion of scans. CONCLUSION: This case series highlights the need for further investigation of impedance in SCS systems and potential limitations for future MRI usage. The review of literature of impedance in SCS shows both device- and physiologic-related etiologies for changes in impedance that warrant consideration by the implanting physician. |
format | Online Article Text |
id | pubmed-8119585 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Healthcare |
record_format | MEDLINE/PubMed |
spelling | pubmed-81195852021-05-14 Failure of SCS MR-Conditional Modes Due to High Impedance: A Review of Literature and Case Series Jotwani, Rohan Abd-Elsayed, Alaa Villegas, Kristine Shakil, Ahmed Gulati, Amitabh Sayed, Dawood Lam, Christopher Mehta, Neel Pain Ther Case Series INTRODUCTION: Magnetic resonance imaging (MRI) conditional modes are a novel feature for certain Food and Drug Administration (FDA)-approved spinal cord stimulation (SCS) devices. However, there is a paucity of literature around the limitation of MRI-conditional modes (“MRI safe”), specifically in clinical scenarios where urgent MRIs may be needed. One such limitation is load impedance, referring to the circuit’s resistance to the current being generated by the system. High impedance can limit the MRI-conditional mode capability, presenting potential harm to a patient undergoing an MRI or make an MRI unable to be completed. METHODS: Three cases were identified, and informed consent was obtained. All information was obtained via retrospective chart review. RESULTS: In this case series of three patients where MRI-conditional SCS systems were unable to be placed in “MRI safe” settings, preventing timely MRI study completion in the setting of high impedance, all three were required to undergo alternative imaging including CT scans, and two patients ultimately had the system explanted and one chose to be re-implanted after completion of scans. CONCLUSION: This case series highlights the need for further investigation of impedance in SCS systems and potential limitations for future MRI usage. The review of literature of impedance in SCS shows both device- and physiologic-related etiologies for changes in impedance that warrant consideration by the implanting physician. Springer Healthcare 2020-11-21 2021-06 /pmc/articles/PMC8119585/ /pubmed/33219927 http://dx.doi.org/10.1007/s40122-020-00219-8 Text en © The Author(s) 2020 https://creativecommons.org/licenses/by-nc/4.0/Open Access This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, which permits any non-commercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) . |
spellingShingle | Case Series Jotwani, Rohan Abd-Elsayed, Alaa Villegas, Kristine Shakil, Ahmed Gulati, Amitabh Sayed, Dawood Lam, Christopher Mehta, Neel Failure of SCS MR-Conditional Modes Due to High Impedance: A Review of Literature and Case Series |
title | Failure of SCS MR-Conditional Modes Due to High Impedance: A Review of Literature and Case Series |
title_full | Failure of SCS MR-Conditional Modes Due to High Impedance: A Review of Literature and Case Series |
title_fullStr | Failure of SCS MR-Conditional Modes Due to High Impedance: A Review of Literature and Case Series |
title_full_unstemmed | Failure of SCS MR-Conditional Modes Due to High Impedance: A Review of Literature and Case Series |
title_short | Failure of SCS MR-Conditional Modes Due to High Impedance: A Review of Literature and Case Series |
title_sort | failure of scs mr-conditional modes due to high impedance: a review of literature and case series |
topic | Case Series |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8119585/ https://www.ncbi.nlm.nih.gov/pubmed/33219927 http://dx.doi.org/10.1007/s40122-020-00219-8 |
work_keys_str_mv | AT jotwanirohan failureofscsmrconditionalmodesduetohighimpedanceareviewofliteratureandcaseseries AT abdelsayedalaa failureofscsmrconditionalmodesduetohighimpedanceareviewofliteratureandcaseseries AT villegaskristine failureofscsmrconditionalmodesduetohighimpedanceareviewofliteratureandcaseseries AT shakilahmed failureofscsmrconditionalmodesduetohighimpedanceareviewofliteratureandcaseseries AT gulatiamitabh failureofscsmrconditionalmodesduetohighimpedanceareviewofliteratureandcaseseries AT sayeddawood failureofscsmrconditionalmodesduetohighimpedanceareviewofliteratureandcaseseries AT lamchristopher failureofscsmrconditionalmodesduetohighimpedanceareviewofliteratureandcaseseries AT mehtaneel failureofscsmrconditionalmodesduetohighimpedanceareviewofliteratureandcaseseries |