Gamma oscillations predict paroxetine response of patients with Obsessive Compulsive Disorder

Arikan M. K., Gunver M. G., Ilhan R.

JOURNAL OF OBSESSIVE-COMPULSIVE AND RELATED DISORDERS, cilt.28, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.jocrd.2020.100620
  • Dergi Adı: JOURNAL OF OBSESSIVE-COMPULSIVE AND RELATED DISORDERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus, EMBASE, Psycinfo
  • Anahtar Kelimeler: Gamma oscillations, Neurometrics QEEG, Obsessive-compulsive disorder, Paroxetine, Serotonin reuptake inhibitors, Treatment resistance
  • İstanbul Üniversitesi Adresli: Evet

Özet

Background: Obsessive compulsive disorder is a distressing psychiatric illness with considerable treatment resistance rates. Prediction of treatment response leads to an increase in patient compliance and a decrease in morbidity. To decrease the treatment resistance rates, valid and useful instruments have been searched. Quantitative electroencephalography (QEEG) based markers have been objective predictors of the treatment response in psychiatric disorders. Aim: This retrospective pilot study aims to explore QEEG as a biomarker to predict early response to paroxetine in OCD patients. Method: Resting state QEEG and Yale-Brown Obsessive Compulsive Scale (Y-BOCS) were administered to 30 drug-free OCD patients without comorbidity. After maximum 12-week of treatment with paroxetine, patients with and without an early improvement were classified based on at least a 35% reduction in Y-BOCS scores. Pretreatment QEEG data were compared between the two groups. Results: Pre-treatment gamma, gamma 1 and gamma 2 oscillations were significantly higher in OCD patients who did not show an early improvement. Conclusion: These preliminary results indicate that gamma oscillations could be acknowledged as the electrophysiological predictors of early clinical outcomes of OCD patients during paroxetine treatment.