Deep brain stimulator artifact in needle electromyography: Effects and distribution in paraspinal and upper limb muscle
Introduction: Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are expected to create artifact in standard needle electromyographic (EMG) recordings. Methods: Five subjects with DBS were studied with...
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| Published in | Muscle & nerve Vol. 47; no. 4; pp. 561 - 565 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
Blackwell Publishing Ltd
01.04.2013
Wiley Subscription Services, Inc |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0148-639X 1097-4598 1097-4598 |
| DOI | 10.1002/mus.23636 |
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| Abstract | Introduction: Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are expected to create artifact in standard needle electromyographic (EMG) recordings. Methods: Five subjects with DBS were studied with standard concentric needle electrode EMG in paraspinal and upper limb muscles. Results: All subjects showed EMG artifact directly related to, and corresponding with, the DBS unit settings. The artifact was very prominent in all paraspinal muscles, although the amplitude was less in lumbar compared with cervical levels. With a large ground electrode next to the insertion site, the artifact was sufficiently small to allow standard EMG examination of upper limb muscles. Conclusions: The DBS artifact is so prominent in paraspinal muscles that it will not allow standard EMG examination for diagnostic purposes such as radiculopathy. The artifact itself can easily be distinguished from pathological insertional and spontaneous activity. Muscle Nerve, 2013 |
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| AbstractList | Introduction
: Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are expected to create artifact in standard needle electromyographic (EMG) recordings.
Methods
: Five subjects with DBS were studied with standard concentric needle electrode EMG in paraspinal and upper limb muscles.
Results
: All subjects showed EMG artifact directly related to, and corresponding with, the DBS unit settings. The artifact was very prominent in all paraspinal muscles, although the amplitude was less in lumbar compared with cervical levels. With a large ground electrode next to the insertion site, the artifact was sufficiently small to allow standard EMG examination of upper limb muscles.
Conclusions
: The DBS artifact is so prominent in paraspinal muscles that it will not allow standard EMG examination for diagnostic purposes such as radiculopathy. The artifact itself can easily be distinguished from pathological insertional and spontaneous activity. Muscle Nerve, 2013 Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are expected to create artifact in standard needle electromyographic (EMG) recordings. Five subjects with DBS were studied with standard concentric needle electrode EMG in paraspinal and upper limb muscles. All subjects showed EMG artifact directly related to, and corresponding with, the DBS unit settings. The artifact was very prominent in all paraspinal muscles, although the amplitude was less in lumbar compared with cervical levels. With a large ground electrode next to the insertion site, the artifact was sufficiently small to allow standard EMG examination of upper limb muscles. The DBS artifact is so prominent in paraspinal muscles that it will not allow standard EMG examination for diagnostic purposes such as radiculopathy. The artifact itself can easily be distinguished from pathological insertional and spontaneous activity. Introduction: Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are expected to create artifact in standard needle electromyographic (EMG) recordings. Methods: Five subjects with DBS were studied with standard concentric needle electrode EMG in paraspinal and upper limb muscles. Results: All subjects showed EMG artifact directly related to, and corresponding with, the DBS unit settings. The artifact was very prominent in all paraspinal muscles, although the amplitude was less in lumbar compared with cervical levels. With a large ground electrode next to the insertion site, the artifact was sufficiently small to allow standard EMG examination of upper limb muscles. Conclusions: The DBS artifact is so prominent in paraspinal muscles that it will not allow standard EMG examination for diagnostic purposes such as radiculopathy. The artifact itself can easily be distinguished from pathological insertional and spontaneous activity. Muscle Nerve, 2013 Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are expected to create artifact in standard needle electromyographic (EMG) recordings.INTRODUCTIONDeep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are expected to create artifact in standard needle electromyographic (EMG) recordings.Five subjects with DBS were studied with standard concentric needle electrode EMG in paraspinal and upper limb muscles.METHODSFive subjects with DBS were studied with standard concentric needle electrode EMG in paraspinal and upper limb muscles.All subjects showed EMG artifact directly related to, and corresponding with, the DBS unit settings. The artifact was very prominent in all paraspinal muscles, although the amplitude was less in lumbar compared with cervical levels. With a large ground electrode next to the insertion site, the artifact was sufficiently small to allow standard EMG examination of upper limb muscles.RESULTSAll subjects showed EMG artifact directly related to, and corresponding with, the DBS unit settings. The artifact was very prominent in all paraspinal muscles, although the amplitude was less in lumbar compared with cervical levels. With a large ground electrode next to the insertion site, the artifact was sufficiently small to allow standard EMG examination of upper limb muscles.The DBS artifact is so prominent in paraspinal muscles that it will not allow standard EMG examination for diagnostic purposes such as radiculopathy. The artifact itself can easily be distinguished from pathological insertional and spontaneous activity.CONCLUSIONSThe DBS artifact is so prominent in paraspinal muscles that it will not allow standard EMG examination for diagnostic purposes such as radiculopathy. The artifact itself can easily be distinguished from pathological insertional and spontaneous activity. Introduction: Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are expected to create artifact in standard needle electromyographic (EMG) recordings. Methods: Five subjects with DBS were studied with standard concentric needle electrode EMG in paraspinal and upper limb muscles. Results: All subjects showed EMG artifact directly related to, and corresponding with, the DBS unit settings. The artifact was very prominent in all paraspinal muscles, although the amplitude was less in lumbar compared with cervical levels. With a large ground electrode next to the insertion site, the artifact was sufficiently small to allow standard EMG examination of upper limb muscles. Conclusions: The DBS artifact is so prominent in paraspinal muscles that it will not allow standard EMG examination for diagnostic purposes such as radiculopathy. The artifact itself can easily be distinguished from pathological insertional and spontaneous activity. Muscle Nerve, 2013 [PUBLICATION ABSTRACT] |
| Author | Nandedkar, Sanjeev D. Sheridan, Christopher Hiner, Bradley C. Barkhaus, Paul E. Bertoni, Sherell |
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| Cites_doi | 10.1001/archneurol.2010.183 10.1097/CND.0b013e3181b40d37 10.1017/S0317167100003425 |
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| References | O'Carroll P, Bertorini TE, Maccarino VS. Artifacts of electromyograph produced by an implanted sacral nerve stimulator. Clin Neuromus Disease 2009;11:77-78. Constantoyannis C, Heilbron B, Honey CR. Electrocardiogram artifacts caused by deep brain stimulation. Can J Neurol Sci 2004;31:343-346. Bejanishvili S, Osborne LE, Messenger K, Olejniczak P, Gutierrez A. EMG vagus nerve stimulator artifact. Neurol Clin Neurophysiol 2005;2005:1. Sadeghian H, Chitnis S, Elliott JL. Deep brain stimulation artifact in needle electromyography. Arch Neurol 2010;67:1030. 2010; 67 2009; 11 2004; 31 2005; 2005 e_1_2_8_2_1 e_1_2_8_5_1 e_1_2_8_4_1 Bejanishvili S (e_1_2_8_3_1) 2005; 2005 |
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| Snippet | Introduction: Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such... Introduction : Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such... Deep brain stimulators (DBS) have become a more widespread treatment option for individuals with centrally mediated movement disorders. Such devices are... |
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| SubjectTerms | Adult Arm - physiology Deep Brain Stimulation - instrumentation deep brain stimulator Electrodiagnosis Electromyography EMG artifact Female Humans implantable pulse generators Lumbosacral Region - physiology Male Middle Aged movement disorders Muscle, Skeletal - physiology needle electromyography |
| Title | Deep brain stimulator artifact in needle electromyography: Effects and distribution in paraspinal and upper limb muscle |
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