alexa Diagnosing Carpal Tunnel Syndrome in Cavanagh Syndrome: A Literature Review and Proposed Electro Physiologic Protocol

Journal of Pain Management & Medicine
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Research Article

Diagnosing Carpal Tunnel Syndrome in Cavanagh Syndrome: A Literature Review and Proposed Electro Physiologic Protocol

Dinesh Kumbhare1*, Najam Mian1, Dhanveer Singh2, Alasdair TL Rathbone3 and Anne Agur4

1Department of Medicine, University of Toronto, Toronto, Ontario, Canada

2Royal College of Surgeons in Ireland, Dublin, Ireland

3Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada

4Department of Surgery, University of Toronto, Toronto, Ontario, Canada

*Corresponding Author:
Dinesh Kumbhare
Department of Medicine,
University of Toronto, Tornto
Ontario, Canada
Tel: 416593422

Received date: June 09, 2017; Accepted date: June 22, 2017; Published date: June 28, 2017

Citation: Kumbhare D, Mian N, Singh D, Rathbone ATL, Agur A (2017) Diagnosing Carpal Tunnel Syndrome in Cavanagh Syndrome: A Literature Review and Proposed Electro Physiologic Protocol. J Pain Manage Med 3:125

Copyright: © 2017 Kumbhare D, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Objective: To summarize the literature on the electrophysiology of Cavanagh Syndrome (CS), to present a clinical application and to propose an updated electrophysiologic protocol. Methods: A systematic literature search for CS was carried out and a clinical application is presented. Results: CS is characterized by congenital thenar hypoplasia and can be associated with other regional muscular and vascular anomalies. The main electrophysiologic abnormality in patients with CS is a reduced amplitude median compound muscle action potential (CMAP) to the thenar eminence, which is also seen in CTS. Radiographic, and electrodiagnostic findings of a patient with co-morbid CS and CTS is presented. Evaluating the median CMAP to the first lumbrical may assist with the diagnosis of CTS in patients with CS. Conclusions: As CTS and CS can present with thenar atrophy and low amplitude CMAPs, electromyographers should be aware of the clinical and radiographic characteristics of CS and consider electrophysiologic evaluation of the first lumbrical.


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