scholarly journals Variability of the palmar cutaneous branch median nerve sensory nerve action potential with carpal tunnel syndrome

2007 ◽  
Vol 55 (4) ◽  
pp. 422
Author(s):  
EP Wilder-Smith ◽  
AravindaT Kannan
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Action Potential ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Palmar Cutaneous Branch ◽  
Cutaneous Branch ◽  
Sensory Nerve Action ◽  
Tunnel Syndrome

scholarly journals Clinical predictors of surgical outcomes of severe carpal tunnel syndrome patients: utility of palmar stimulation in a nerve conduction study

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Yuichi Sasaki ◽  
Tohru Terao ◽  
Emiko Saito ◽  
Keiichiro Ohara ◽  
Shotaro Michishita ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Action Potential ◽  
Carpal Tunnel ◽  
Compound Muscle Action Potential ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Muscle Action ◽  
Muscle Action Potential ◽  
Sensory Nerve Action ◽  
Tunnel Syndrome

Abstract Background Carpal tunnel syndrome is a common peripheral nerve compression disorder. However, there is no established opinion regarding the predictors of symptom improvement after surgery. This study aimed to identify the predictors of surgical outcomes of severe carpal tunnel syndrome patients. Methods In the patients who underwent a carpal tunnel syndrome surgery, we selected the patients who had a preoperative Bland’s classification of grade 5 or 6, and assessed for the changes in Bland’s classification grade before and after surgery. Those who showed improvement from preoperative grades 5–6 to postoperative grades 1–4 comprised the improvement group. In contrast, those who did not show improvement and had postoperative grades 5 or 6 comprised the non-improvement group. In a nerve conduction study, amplitudes of the compound muscle action potential and sensory nerve action potential of the palms were assessed between the improvement and non-improvement groups. Results Among the 60 hands of 46 patients who had a preoperative Bland’s classification of grade 5 or 6, 49 hands of 37 patients comprised the improvement group, and 11 hands of 9 patients comprised the non-improvement group. The amplitudes of the compound muscle action potential and sensory nerve action potential of the palms before surgery were significantly higher in the improvement group. The degree of improvement in Bland’s classification grade was correlated with the degree of clinical symptom improvement. Conclusions Amplitudes of compound muscle action potential and sensory nerve action potential before surgery induced by palmar stimulation can predict improvements in nerve conduction study scores and clinical findings after surgical treatment.

scholarly journals Entrapment of the Palmar Cutaneous Branch of the Median Nerve, A Clinical Entity distinguished from Carpal Tunnel Syndrome:

2004 ◽  
Vol 18 (3) ◽  
pp. 215-218
Author(s):  
Kimitoshi Sato ◽  
Shigekuni Tachibana ◽  
Satoru Shimizu ◽  
Masao Ishiwata ◽  
Kiyotaka Fujii
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Clinical Entity ◽  
Palmar Cutaneous Branch ◽  
Cutaneous Branch ◽  
Tunnel Syndrome

scholarly journals The Effectiveness of Ultrasound-Guided Steroid Injection Combined with Miniscalpel-Needle Release in the Treatment of Carpal Tunnel Syndrome vs. Steroid Injection Alone: A Randomized Controlled Study

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Subo Zhang ◽  
Fei Wang ◽  
Songjian Ke ◽  
Caina Lin ◽  
Cuicui Liu ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Action Potential ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Steroid Injection ◽  
Sensory Nerve ◽  
Controlled Study ◽  
Injection Group ◽  
Tunnel Syndrome ◽  
Release Group

Objectives. Carpal tunnel syndrome (CTS) is one of the most common nerve entrapment syndromes, which has a serious impact on patients’ work and life. The most effective conservative treatment is steroid injection but its long-term efficacy is still not satisfactory. The aim of this study was to evaluate the effectiveness of steroid injection combined with miniscalpel-needle (MSN) release for treatment of CTS under ultrasound guidance versus steroid injection alone. We hypothesized that combined therapy could be more beneficial. Methods. Fifty-one patients with CTS were randomly allocated into two groups, namely, steroid injection combined with MSN release group and steroid injection group. The therapeutic effectiveness was evaluated using Boston Carpal Tunnel Questionnaire (BCTQ), cross-sectional area (CSA) of the median nerve, and four electrophysiological parameters, including distal motor latency (DML), compound muscle action potential (CMAP), sensory nerve action potential (SNAP), and sensory nerve conduction velocity (SNCV) at baseline, 4 and 12 weeks after treatment. Results. Compared with baseline, all the parameters in both groups showed statistically significant improvement at week 4 and week 12 follow-up, respectively (P<0.05). When compared with steroid injection group, the outcomes including BCTQ, DML, CMAP, SNCV, and CSA of the median nerve were significantly better in steroid injection combined with MSN release group at week 12 after treatment (P<0.05). Conclusions. The effectiveness of steroid injection combined with MSN release for CTS is superior to that of steroid injection alone, which may have important implications for future clinical practice. This Chinese clinical trial is registered with ChiCTR1800014530.

scholarly journals Etiology of Carpal Tunnel Syndrome in a Large Cohort of Children

Children ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 624
Author(s):  
Christina T. Rüsch ◽  
Ursula Knirsch ◽  
Daniel M. Weber ◽  
Marianne Rohrbach ◽  
André Eichenberger ◽  
...  
Keyword(s):  
Carpal Tunnel Syndrome ◽  
Median Nerve ◽  
Carpal Tunnel ◽  
Vascular Malformations ◽  
Sensory Nerve ◽  
Imaging Data ◽  
Sensory Nerve Action ◽  
Tunnel Syndrome ◽  
Underlying Disorder ◽  
Mixed Nerve

(1) Background: Carpal tunnel syndrome (CTS), a compressive mononeuropathy of the median nerve at the wrist, is rare in childhood and occurs most frequently due to secondary causes. (2) Methods: Medical history, electrodiagnostic findings, and imaging data of patients with CTS from two pediatric neuromuscular centers were analyzed retrospectively. The etiology of CTS was investigated and compared with the literature. (3) Results: We report on a cohort of 38 CTS patients (n = 22 females, n = 29 bilateral, mean age at diagnosis 9.8 years). Electrodiagnostic studies of all patients revealed slowing of the antidromic sensory or orthodromic mixed nerve conduction velocities across the carpal tunnel or lack of the sensory nerve action potential and/or prolonged distal motor latencies. Median nerve ultrasound was diagnostic for CTS and confirmed tumorous and vascular malformations. Etiology was secondary in most patients (n = 29; 76%), and mucopolysaccharidosis was the most frequent underlying condition (n = 14; 37%). Idiopathic CTS was rare in this pediatric cohort (n = 9; 24%). (4) Conclusion: Since CTS in childhood is predominantly caused by an underlying disorder, a thorough evaluation and search for a causative condition is recommended in this age group.

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