Evaluation of optical coherence tomography findings and visual evoked potentials in Charcot-Marie-Tooth disease

Kaplan A. T., Oskan Yalcin S., Sager S. G., Türkyılmaz A., İnan R.

INTERNATIONAL OPHTHALMOLOGY, cilt.43, sa.1, ss.333-341, 2023 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 1
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1007/s10792-022-02452-w
  • Dergi Adı: INTERNATIONAL OPHTHALMOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, CAB Abstracts, EMBASE, MEDLINE
  • Sayfa Sayıları: ss.333-341
  • Anahtar Kelimeler: Demyelinating, Axonal type, Latency, Ganglion cell, Retinal nerve fiber layer, HEREDITARY MOTOR, MFN2 MUTATIONS, NEUROPATHY, MITOFUSIN-2, ATROPHY, HETEROGENEITY
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Purpose To evaluate the spectral-domain optical coherence tomography (SD-OCT) findings and pattern visual evoked potential (VEP) in Charcot-Marie-Tooth (CMT) disease. Methods Seventeen patients with CMT disease and 17 control subjects were included in the study. The patients were divided into two groups according to conduction velocity and inheritance pattern as demyelinating type (CMT 1) and axonal type (CMT 2). The average retinal nerve fiber layer (RNFL) thickness, RNFL thicknesses of all quadrants, and thicknesses of the ganglion cell layer complex (GCC) were measured using SD-OCT. Pattern VEP recordings were evaluated in both groups. Results The average and four quadrants of RNFL thicknesses, and superior and inferior GCC thicknesses were significantly thinner in the CMT patients compared with healthy individuals, but there were no statistically significant differences between the CMT groups. There was a significant positive correlation between age and all RNFL and GCC thicknesses in the CMT 2 group and between age and RNFL thickness of the temporal quadrant in the CMT 1 group. P100 latencies were significantly delayed in the CMT groups compared with controls, and there were no significant differences in P100 latencies between the CMT groups (p < 0.001). VEP amplitudes were in normal ranges in the CMT groups. Conclusion This study showed that RNFL and GCC thicknesses were significantly reduced and VEP latencies were prolonged in patients with CMT with normal clinical examinations. Our results suggest that optic nerves may be affected more frequently in patients with CMT that is detected in clinical examinations.