Nerve Conduction Studies and Measurement of Median Nerve Cross-Sectional Area in Patients Newly Diagnosed with Hypothyroidism

Year 2023, Volume: 5 Issue: 2, 367 - 71, 15.05.2023

Aydın Talip Yıldoğan , Gözde Öngün , Fettah Eren , Hasan Kara , Abdullah Erdem Akkulak , Cem Onur Kıraç , Süleyman Baldane , İlknur Albayrak , Recep Aygül

https://doi.org/10.37990/medr.1167201

Abstract

Aim: This study aimed to investigate the rate of carpal tunnel syndrome (CTS) and polyneuropathy in patients with new-diagnosed hypothyroidism and the relationship between median nerve conduction and the cross-sectional area of the median nerve by ultrasonography.
Material and Methods: It was a prospective, cross-sectional and case-control study. This study included thirty-five new-diagnosed hypothyroidism cases and thirty-five healthy controls. Bilateral sensory and motor nerve potentials were noted in the lower and upper extremities. The cross-sectional area of the median nerve was examined at the entrance of the CT with the axial plan by ultrasonography. The relationship between the cross-sectional areas of the median nerve and nerve conduction parameters was investigated.
Results: CTS was determined electrophysiologically in 8 (22.9%) patients. The control group had no CTS. There was no significant electrophysiological finding to support polyneuropathy in the patients. The cross-sectional areas of the median nerve were higher in the patient group but did not reach statistically significant (p>0.05). There was a positive correlation between the right and left cross-sectional area of median nerves and body mass index (BMI) (p<0.05).
Conclusion: The rate of CTS is high in patients with newly diagnosed hypothyroidism. There is a positive correlation between cross-sectional nerve areas and BMI. There was no significant correlation between nerve conductions and median nerve ultrasonographic cross-sectional areas.

Keywords

Nerve conduction, hypothyroidism, neuropathy, ultrasonography

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