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Current Perception Threshold Testing in Pharyngeal Paresthesia Patients with Depression or Anxiety

Authors Chang W, Xu W, Hu R, An Y

Received 3 February 2020

Accepted for publication 8 April 2020

Published 20 April 2020 Volume 2020:16 Pages 1023—1029

DOI https://doi.org/10.2147/NDT.S248236

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Yuping Ning


Wei Chang, Wen Xu, Rong Hu, Yunsong An

Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, People’s Republic of China

Correspondence: Wen Xu Email xuwendoc@126.com

Purpose: Satisfactory quantitative diagnostic approaches to pharyngeal paresthesia patients with depression or anxiety remain to be explored. This study investigated the plausibility of current perception threshold (CPT) testing in diagnosing pharyngeal paresthesia in patients with depression or anxiety.
Patients and Methods: A total of 41 patients with pharyngeal paresthesia with depression or anxiety were recruited as the study group. Additionally, 60 healthy volunteers constituted the control group. The CPT values associated with 5-, 250-, and 2000-Hz electrical stimulation frequencies were measured at the palatal lingual arch and posterior third of the lingual body (two sensory nerve distribution sites in the pharynx). The normal range of CPT values of the above three frequencies was analyzed. The differences in the CPT values for sensory nerves were compared.
Results: There were no significant differences in age and sex between the study and control groups. The CPT values of the pharynx at the two tested sites were not significantly correlated with age and gender. The CPT value of the study group was significantly lower than that of the control group in the palatal lingual arch and posterior third of the lingual body at an electrical stimulation of 5 Hz (p< 0.05). No significant differences in the CPT values at other frequencies were found between the two groups.
Conclusion: CPT testing is effective in determining pharyngeal paresthesia in patients with depression and anxiety. Paresthesia of the pharyngeal sensory nerve region is caused by damaged C fibers.

Keywords: pharyngeal paresthesia, sensory nerve fibers, current perception threshold testing, reference values, depression, anxiety

Corrigendum for this paper has been published

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