American Association of Electrodiagnostic Medicine guidelines for outcome studies in electrodiagnostic medicine

Jablecki, Charles K.; Andary, Michael; Benedetto, Margarete Di; Horowitz, Steven H.; Marino, Ralph J.; Rosenbaum, Richard B.; Shields, Robert W.; Williams, Faren H.

doi:10.1002/(sici)1097-4598(199612)19:12<1626::aid-mus18>3.0.co;2-p

Cited by 11 publications

(9 citation statements)

References 15 publications

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“…Various tests [2,3] have been employed to verify the compression of the median nerve at the wrist and to assess its severity. Recently Preston and Logigian [8] proposed an additional test, comparison of the second lumbrical with the second interosseus distal motor latency (2LI-DML), as being valuable in the diagnosis of CTS.…”

Section: Introductionmentioning

confidence: 99%

Comparison of second lumbrical and interosseus latencies with standard measures of median nerve function across the carpal tunnel: a prospective study of 450 hands

Löscher¹,

Auer‐Grumbach²,

Trinka³

et al. 2000

Journal of Neurology

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The second lumbrical-interosseus distal motor latency (2LI-DML) was compared prospectively in 450 hands. Median nerve function was assessed by standard motor and sensory electrophysiological tests. In a control group of 100 hands the upper limit of normal for the 2LI-DML was 0.5 ms. In all hands studied the correlation coefficients of 2LI-DML were higher with sensory nerve tests than with motor studies. Carpal tunnel syndrome (CTS) was diagnosed clinically in 276 hands, and 174 showed no clinical signs of CTS. The 2LI-DML was prolonged in 269 of the 276 hands, with clinical signs of CTS and normal in 170 of 174 non-CTS hands. Thus the 2LI-DML resulted in a sensitivity of 97.5%. On the other hand, combining the standard tests yielded a sensitivity of 98.5 %. In 31 of 36 additional hands a lumbrical response was recorded, although motor and sensory responses form standard median nerve conduction studies were absent, and the 2LI-DML was substantially prolonged. The 2LI-DML therefore represents a highly sensitive, fast, easy-to-perform, and cost-efficient method to study median nerve function across the wrist and may help to localize the lesion in cases in which standard electrophysiological methods fail.

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Section: Introductionmentioning

confidence: 99%

Comparison of second lumbrical and interosseus latencies with standard measures of median nerve function across the carpal tunnel: a prospective study of 450 hands

Löscher¹,

Auer‐Grumbach²,

Trinka³

et al. 2000

Journal of Neurology

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“…It is a convenient single value for excitability of a tissue and has been used as an isolated diagnostic test [2]. It appears that chronaxie for low back pain patients with radiculopathy has not been widely reported, however, the chronaxie of nerve and/or innervated muscle is short, usually less than 1 ms; denervated muscle is a larger capacitor requiring more energy to discharge, usually with a chronaxie of greater than 1 ms [3] and could be as ten times higher than a normal innervated muscles.…”

Section: Discussionmentioning

confidence: 99%

“…It provides graphic representation of the integrity of the muscle-nerve complex. The SDC remains useful even though electrophysiologic evaluation techniques have become more sophisticated in the past three decades, it still remains a reliable index of muscle/nerve functional integrity [1,2]. The response of a nerve and a muscle to electrical stimulus depend on three variable excitation factors: strength of the stimulus, period of time for which the current flows and the rate of change of the stimulus.…”

Section: Introductionmentioning

confidence: 99%

“…SDC of a denervated muscle will be shifted to the right compared to normal innervated muscle; subsequently shifting to the left occur during reinnervation [1]. Thus, SDC can be used to demonstrate or confirm normal innervation of a muscle, presence or progress of lower motor neuron lesion disorders [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…It began in 1868 with Erb's method of electrodiagnosis by faradic and galvanic currents. The second stage, first through Lapigue in 1926 and then in 194, saw the introduction of the SDC obtained with rectangular or triangular-wave electrical pulses of variable duration and the three typical types of curve corresponding to normality, partial denervation, and total denervation [2]. The introduction of the needle-concentric electrode by Adrian and Bronk in 1929 marked the start of the last stage, the electromyographic one, which expanded in the 1960s.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Lumbar Disc Herniation on Chronaxie and Rheobase in Patients with Chronic Low Back Pain-A Quasi Experimental Pilot Study

G¹

2015

J Nov Physiother

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Aim: To investigate the influence of lumbar disc herniation on rheobase and chronaxie in patients with low back pain. Methods:The Strength duration curve, rheobase and Chronaxie in 10 LBP patients with radiculopathy due to lumbar disc herniation and 10 healthy controls were obtained following stimulation of tibialis anterior and peroneus muscles.Results: Tibialis anterior and peroneus muscles in both Low back patients with radiculopathy due to lumbar disc herniation and healthy control showed normal pattern of strength duration curve typical of an innervated muscle. The rheobase and chronaxie values for tibialis anterior were 11.8 ± 1.93 and 0.54 ± 0.014 respectively in LBP patients and 7.4 ± 0.84 and 0.24 ± 0.14 respectively in control subjects. The rheobase and chronaxie values for peroneus muscles were 12.8 ± 2.93 and 0.41 ± 0.07 respectively in LBP patients and 7.6 ± 1.71 and 0.16 ±0.01 respectively control subjects. Rheobase and chronaxie were significantly higher in low back pain patients with radiculopathy than apparently healthy control subjects (P<0.00). Conclusion:Findings from this study demonstrated higher rheobase and chronaxie in patients with LBP and lumbar disc herniation than the control subjects. The outcome of this study will be used to do power size calculation for a large randomised controlled trial.

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Reversal of Suprascapular Neuropathy Following Arthroscopic Repair of Massive Supraspinatus and Infraspinatus Rotator Cuff Tears

Costouros

Porramatikul

Lie

et al. 2007

Arthroscopy: The Journal of Arthroscopic & Related Surgery

204

143

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American Association of Electrodiagnostic Medicine guidelines for outcome studies in electrodiagnostic medicine

Cited by 11 publications

References 15 publications

Comparison of second lumbrical and interosseus latencies with standard measures of median nerve function across the carpal tunnel: a prospective study of 450 hands

Comparison of second lumbrical and interosseus latencies with standard measures of median nerve function across the carpal tunnel: a prospective study of 450 hands

Influence of Lumbar Disc Herniation on Chronaxie and Rheobase in Patients with Chronic Low Back Pain-A Quasi Experimental Pilot Study

Reversal of Suprascapular Neuropathy Following Arthroscopic Repair of Massive Supraspinatus and Infraspinatus Rotator Cuff Tears

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