Akademik Veri Yönetim Sistemi
Turkiye Klinikleri Journal of Medical Sciences, cilt.42, sa.1, ss.35-42, 2022 (Scopus, TRDizin)
Objective: To investigate the presence of comorbid sleep disorders on the basis of clinical and polysomnographic data in the patients with paradoxical insomnia. Material and Methods: All patients admitted to our sleep disorders unit during the year 2019, and diagnosed as having paradoxical insomnia were prospectively included. Upon evaluation of clinical and polysomnographic data, the patients with paradoxical insomnia without comorbid sleep disorders were clas-sified as Group 1, and those with comorbid sleep disorders were clas-sified as Group 2. Results: Out of 32 patients having paradoxical insomnia, only 10 (31.3%) patients had no accompanying sleep disor-ders. Twenty two patients had comorbid sleep disorders (Group 2, 68.7%), and obstructive sleep apnea syndrome (OSAS) was the most common comorbidity (59.4%). In Group 1, 80% were females; while in Group 2, 63.6% were males (p=0.054). Comorbid psychiatric disorders were more frequent in Group 1, although it was not significant (30% vs 18.2%; p=0.648). Among Group 2, the subjective-objective mismatch was found to be significantly more pronounced in patients with moderate to severe OSAS in compared to those with mild OSAS. Conclusion: We observed that comorbid sleep disorders are common in paradoxical insomnia. In the evaluation of sleep misperception, the subjective-objective mismatch was not predictive to differentiate patients with paradoxical insomnia with or without comorbid sleep dis-orders. On the other hand, OSAS associated with paradoxical insomnia may result in greater subjective-objective mismatch. It may therefore be logical to suggest routine polysomnographic investigation in all patients with paradoxical insomnia.