Anxio Depressive Disorder
Conditions
Brief summary
The heart rate (HR) is regulated by the autonomic nervous system (ANS) and results from a balance between the sympathetic nervous system (SNS) that accelerates the heart rate and the parasympathetic nervous system that slows the HR via the vagus nerve. Low HRV is linked to poor emotional and cognitive regulation. Values for HRV are generally lower in depressed patients. The aim of this study is to determine how HRV could be a clinical marker that can be used in routine psychiatry practice in patients with anxio-depressive disorders, to determine the severity of symptoms and the degree of response to treatment.
Interventions
DEVICEHeart rate monitoring
The heart rate will be recorded and calculated by a heart rate monitor (Polar H10, Finland) located on the chest. The recording is done over a period of 5 minutes, the patient being in a sitting position, without any particular stimulus, in a quiet room. The recording is transferred via the HRV Logger application. Any ectopic beats and artifacts are automatically identified and replaced by values interpolated by the investigator, if necessary. The Kubios HRV Premium Software is used for all calculations.
Sponsors
Tatiana Besse-Hammer
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
\- Patients of the CHU Brugmann Hospital with an anxious or depressive disorder
Exclusion criteria
\- None
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| State trait Anxiety inventory (STAI) | Baseline (day of inclusion of the patient in the study). | The State-Trait Anxiety Inventory (STAI) is a psychological inventory based on a 4-point Likert scale and consists of 40 questions on a self-report basis. Scores range from 20 to 80, with higher scores correlating with greater anxiety. |
| Root mean square of successive differences (RMSSD) | Baseline (day of inclusion of the patient in the study). | The Root Mean Square of the Successive Differences (RMSSD) is one of a few time-domain tools used to assess heart rate variability, the successive differences being neighboring RR intervals. It reflects the activity of the parasympathetic nervous system. |
| High frequency percentage in the spectral analysis of the heart RR interval | Baseline (day of inclusion of the patient in the study). | Spectral analysis of the RR interval is an indirect, noninvasive measurement tool of heart rate variability. High-frequency RR signals (0.15 to 0.4 Hz) reflect a parasympathetic activity and thus an influence of the vagal nerve on the heart. A high frequency heart variability is associated with a better perception of emotions and with pro-social behaviors. |
| Beck depression inventory (BDI) | Baseline (day of inclusion of the patient in the study). | Multiple choice (4 choices) questionnaire with 21 items. The end score can vary between 0 and 63. Score interpretation: 1-10: These ups and downs are considered normal. 11-16 Mild mood disturbance. 17-20 Borderline clinical depression. 21-30 Moderate depression. 31-40 : Severe depression. Over 40 :Extreme depression. |
| Maslach Burnout inventory (MBI) | Baseline (day of inclusion of the patient in the study). | The Maslach Burnout Inventory (MBI) is an introspective psychological inventory consisting of 22 items pertaining to occupational burnout. All MBI items are scored using a 7 level frequency scale from never to daily. Initial development had 3 components: emotional exhaustion (9 items), depersonalization (5 items) and personal achievement (8 items). Each scale measures its own unique dimension of burnout. Scales should not be combined to form a single burnout scale. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Difficulties in Emotion Regulation Scale (DERS-18) | Baseline (day of inclusion of the patient in the study). | The Difficulties in Emotion Regulation Scale is a self-report measure that evaluates individuals' levels of difficulties in regulating emotions.Higher scores indicate more difficulty in emotion regulation. |
| Toronto Alexithymia scale (TAS 20) | Baseline (day of inclusion of the patient in the study). | The TAS is a 20-item instrument that is one of the most commonly used measures of alexithymia. Alexithymia refers to people who have trouble identifying and describing emotions and who tend to minimise emotional experience and focus attention externally. The TAS-20 uses cutoff scoring: equal to or less than 51 = non-alexithymia, equal to or greater than 61 = alexithymia. Scores of 52 to 60 = possible alexithymia. |
Countries
Belgium
Outcome results
None listed