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Effect of coexistent carpal tunnel abnormality on sensory conduction findings in polyneuropathy.
J Clin Neuromuscul Dis. 2014 Dec; 16(2):51-8.JC

Abstract

OBJECTIVES

To investigate the change of pattern of sensory conduction findings in polyneuropathy with coexistent carpal tunnel abnormality (CTAbN).

METHODS

We reviewed sensory conduction findings of 46 patients with acute inflammatory demyelinating polyradiculoneuropathy (AIDP) and 66 with diabetic polyneuropathy (DP). Both groups were categorized into those with and without CTAbN according to transcarpal median sensory conduction velocities.

RESULTS

In AIDP, median sensory nerve action potential (SNAP) amplitudes were reduced, whereas sural SNAP amplitudes remained unchanged. Median SNAP amplitude was lowest, and sural/median SNAP amplitude ratio was highest in AIDP with coexistent CTAbN. In DP, both median and sural SNAP amplitudes were reduced. Their sural/median SNAP amplitude ratios remained unchanged. Incidence of abnormal median-normal sural pattern was higher in AIDP than in DP. Nevertheless, these incidences did not alter with coexistent CTAbN. The ulnar SNAP amplitude and sural/ulnar SNAP amplitude ratio were not significantly different between those with and without CTAbN in both AIDP and DP groups.

CONCLUSIONS

Coexistent CTAbN caused further increase of sural/median SNAP amplitude ratio only in AIDP.

Authors+Show Affiliations

Section of Neuromuscular Disease, Department of Neurology, Chang Gung Memorial Hospital Linkou Medical Center and Chang Gung University Medical College, Taoyuan, Taiwan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25415515

Citation

Lyu, Rong-Kuo, et al. "Effect of Coexistent Carpal Tunnel Abnormality On Sensory Conduction Findings in Polyneuropathy." Journal of Clinical Neuromuscular Disease, vol. 16, no. 2, 2014, pp. 51-8.
Lyu RK, Liao MF, Kuo HC, et al. Effect of coexistent carpal tunnel abnormality on sensory conduction findings in polyneuropathy. J Clin Neuromuscul Dis. 2014;16(2):51-8.
Lyu, R. K., Liao, M. F., Kuo, H. C., Chu, C. C., & Chang, K. H. (2014). Effect of coexistent carpal tunnel abnormality on sensory conduction findings in polyneuropathy. Journal of Clinical Neuromuscular Disease, 16(2), 51-8. https://doi.org/10.1097/CND.0000000000000053
Lyu RK, et al. Effect of Coexistent Carpal Tunnel Abnormality On Sensory Conduction Findings in Polyneuropathy. J Clin Neuromuscul Dis. 2014;16(2):51-8. PubMed PMID: 25415515.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of coexistent carpal tunnel abnormality on sensory conduction findings in polyneuropathy. AU - Lyu,Rong-Kuo, AU - Liao,Ming-Feng, AU - Kuo,Hung-Chou, AU - Chu,Chun-Che, AU - Chang,Kuo-Hsuan, PY - 2014/11/22/entrez PY - 2014/11/22/pubmed PY - 2015/11/5/medline SP - 51 EP - 8 JF - Journal of clinical neuromuscular disease JO - J Clin Neuromuscul Dis VL - 16 IS - 2 N2 - OBJECTIVES: To investigate the change of pattern of sensory conduction findings in polyneuropathy with coexistent carpal tunnel abnormality (CTAbN). METHODS: We reviewed sensory conduction findings of 46 patients with acute inflammatory demyelinating polyradiculoneuropathy (AIDP) and 66 with diabetic polyneuropathy (DP). Both groups were categorized into those with and without CTAbN according to transcarpal median sensory conduction velocities. RESULTS: In AIDP, median sensory nerve action potential (SNAP) amplitudes were reduced, whereas sural SNAP amplitudes remained unchanged. Median SNAP amplitude was lowest, and sural/median SNAP amplitude ratio was highest in AIDP with coexistent CTAbN. In DP, both median and sural SNAP amplitudes were reduced. Their sural/median SNAP amplitude ratios remained unchanged. Incidence of abnormal median-normal sural pattern was higher in AIDP than in DP. Nevertheless, these incidences did not alter with coexistent CTAbN. The ulnar SNAP amplitude and sural/ulnar SNAP amplitude ratio were not significantly different between those with and without CTAbN in both AIDP and DP groups. CONCLUSIONS: Coexistent CTAbN caused further increase of sural/median SNAP amplitude ratio only in AIDP. SN - 1537-1611 UR - https://www.unboundmedicine.com/medline/citation/25415515/Effect_of_coexistent_carpal_tunnel_abnormality_on_sensory_conduction_findings_in_polyneuropathy_ DB - PRIME DP - Unbound Medicine ER -