Do patients with bipolar disorder and subsyndromal symptoms benefit from functional remediation? A 12-month follow-up study

Eur Neuropsychopharmacol. 2017 Apr;27(4):350-359. doi: 10.1016/j.euroneuro.2017.01.010. Epub 2017 Jan 23.

Abstract

We analyzed the efficacy of functional remediation, in a sample of patients with bipolar disorder who presented with subsyndromal symptoms. From a total sample of 239 patients with bipolar I and II disorder, according to DSM-IV-TR diagnostic criteria, entering a randomized clinical trial, those patients who presented with subsyndromal symptoms were selected based on a method already described by Berk and colleagues was applied. It consists of using the Clinical Global Impression-Bipolar version (CGI-BP) to establish the scores of the Hamilton Depression Rating Scale (HAM-D) and of the Young Mania Rating Scale (YMRS) that correspond with 1 in the CGI-BP. Functional outcome and mood symptoms were assessed at 6 and at 12-month follow-up. A total of 99 patients were selected for this post-hoc analysis, allocated as follows: functional remediation (n=33); psychoeducation (n=37) and treatment as usual (TAU,n=29). The repeated-measures analyses at 12-month follow-up revealed a significant group x time interaction in favour of the patients who received functional remediation when compared to psychoeducation and TAU (F=2.93; p=0.02) at improving psychosocial functioning. Finally, mood symptoms did not significantly change in any of the three groups at any time of follow-up, as shown by the non-significant group x time interaction effect in HAM-D scores (F=1.57; p=0.18) and YMRS scores (F=1.51; p=0.20). Bipolar patients with subsyndromal symptoms improve their functional outcome when exposed to functional remediation regardless of the persistence of mood symptomatology.

Keywords: Bipolar disorder; Functional remediation; Subsyndromal symptoms; Treatment.

Publication types

  • Multicenter Study

MeSH terms

  • Adult
  • Analysis of Variance
  • Bipolar Disorder / rehabilitation*
  • Chi-Square Distribution
  • Cognitive Remediation / methods*
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Middle Aged
  • Psychiatric Status Rating Scales
  • Psychotherapy / methods
  • Treatment Outcome