[Pain syndromes and insomnia: the role of association with comorbid mental disorders (on the model of glossalgia)]. / Bolevye sindromy i insomniya: rol' assotsiatsii s komorbidnymi psikhicheskimi rasstroistvami (na modeli glossalgii).

OBJECTIVE: To test the association between pain severity and anxiety, depression, and somatoform symptoms in burning sleep syndrome (BMS). MATERIAL AND METHODS: The study included 36 patients (33 women, 3 men), mean age 58.0±14.8 years. Psychopathological, clinical-dermatological, parametric, statistical methods were used. Psychometric examination included the Visual Analogue Scale (VAS) for assessment of pain (severity of glossalgia), PHQ-4 for self-assessment of severity of anxiety (GAD-2) and depression (PHQ-2), the Hospital Anxiety and Depression Scale (HADS), the Screening for Somatoform Symptoms-2 (SOMS-2), the Pittsburgh Sleep Quality Index (PSQI), the EQ-5D-5L quality of life assessment scale. RESULTS AND CONCLUSION: Insomnia in chronic pain is very common. On the one hand, studies show that sleep deprivation can enhance pain perception. On the other hand, chronic pain can trigger a variety of sleep disorders. One of the localizations of chronic pain syndrome is the oral mucosa. Somatoform pain disorder related to oral mucosa called «glossalgia¼ or «burning mouth syndrome¼ (BMS). The prevalence of insomnia in the study sample was 61.1%. The statistically significant positive correlation was found between the severity of insomnia (PSQI) and the severity of anxiety on both GAD-2 and HADS, while insomnia showed no correlation with depression and pain severity. At the same time, the severity of anxiety showed statistically significant positive correlation with the severity of pain assessed by VAS.

[Glossalgia as a psychodermatological syndrome]. / Glossalgiya kak sindrom psikhodermatologicheskoi patologii.

OBJECTIVE: To study clinical characteristics of burning mouth syndrome or glossalgia is a functional disorder with painful sensations in the oral cavity with verification of the psychopathological structure, typology and nosology of the syndrome within the continuum of neurotic/psychotic disorders and dermatological pathology, i.e. lichen planus (LP). MATERIAL AND METHODS: The study sample (n=30, 27 female, mean age 59.3±15.6 years) was examined by dermatologist, neurologist and psychiatrist both clinically and psychometrically. The patients met the diagnostic criteria for glossalgia according to the IASP classification and ICD-10 for glossodynia (code K14.6). In 7 subjects, there was comorbidity with LP of the oral mucosa. RESULTS: The psychopathological picture of glossalgia syndrome has a binary structure. Basic coenesthesiopathies, ranging in severity from homonomous sensations (isteralgias) to heteronomic sensopathies (senestopathies, senesthesia), are associated with secondary hypochondriacal phenomena: from health anxiety and monopatophobia to mastery of ideas and somatopsychic confusion, respectively. According to the psychopathological register (neurotic/psychotic) and the fact of objective verification of a dermatological disease (hypochondria sine materia/cum materia), there are three types of glossalgic syndrome: 1) organo-neurotic; 2) somatopsychotic; 3) dermatological (stress-induced somatic reactions). CONCLUSION: BMS is a local syndrome limited to the oral cavity, however, in fact, it covers the entire clinical spectrum of psychosomatic pathology from mental diseases to psychodermatological ones.