[Suicidal attempts in child and adolescent and bipolar disorders].

BACKGROUND

Child and adolescent psychiatrists are frequently confronted with suicide attempts and comorbid mood disorders. Diagnoses of juvenile bipolar disorders (BD) are rare and controversial and standardized assessment is helpful for a reliable diagnosis. The main objective of this study was to identify the number of juvenile bipolar disorder diagnoses according to DSM-5 criteria in a population of children and adolescents hospitalized for suicide attempts. Secondary objectives were the assessment of a patient's characteristics and the comparison of suicide attempt recurrence during 12 months of follow-up.

METHODS

This current practice study consecutively included children and adolescents aged 6 to 18 years and hospitalized for a suicide attempt in a French University Pediatric Hospital over a 4-month period. Patients were assessed at baseline, at 3 months and at 12 months. The standardized assessment was realized by the investigator using semi-structured interview K-SADS-PL (2013) to diagnose juvenile bipolar disorders based on DSM-5 criteria. Clinical diagnoses based on medical charts and according to ICD-10 criteria were also collected at 12-month follow-up. Standardized assessment was completed by the French validated K-SADS-PL (2004) for comorbidities (DSM-IV), dimensional assessment by MADRS-YMRS-ARI-C-SSR, and C-GAS at inclusion. Patients were divided into two groups: (1) those presenting juvenile bipolar disorder according to DSM 5 (BD+) and (2) those without criteria for bipolar disorder (BD-). Suicide risk factors and suicide attempt relapse were assessed at 3 and 12 months of follow-up.

RESULTS

Twenty-six inpatients (22 female and 4 male) aged 14.5 years (SD 1,5) were consecutively included. Twenty patients were followed up during the 12-month period. At baseline, 5 patients (19.2 %) presented a diagnosis of BD (DSM-5): 1 BD type 2, 2 non specified BD, 2 cyclothymic disorders. According to the medical charts (ICD-10), none of the patients had been diagnosed with BD but had diagnoses of dysthymia, of borderline personality disorder and of conduct disorder corresponding to DMDD in 3, 2 and 1 patient respectively. During the 12-month follow-up, 9 patients of the BD- group and none of the BD+ presented recurrence of suicide attempt with 67 % during the first 3 months and 3 patients with multi-relapses. These 3 patients were female adolescents out of care and carrying at least three suicide risk factors. Six patients have been lost to follow-up (1 BD+, 5 BD-). In the BD+ group, 3 patients out of 4 had a persistent diagnosis (DSM-5) of BD at 12 months.

CONCLUSION

In our adolescent population hospitalized for suicidal attempt, 19,2 % present BD using DSM-5 criteria. Diagnoses are stable during 12 months of follow-up, but under diagnosed in current clinical practice. DSM-5 standardized assessment appears to be very important to diagnose juvenile BD, mandatory for medium and long-term psychiatric follow-up, especially for suicide prevention and psychopharmacologic therapeutics. Nevertheless, no recurrence of suicide attempts has been observed in our BP+ group, contrary to BP-, possibly due the absence of BP 1 disorder.