Measurement of subclinical changes during lithium prophylaxis: a longitudinal study

Area of Science:

• Psychiatry
• Clinical Psychology
• Neuroscience

Background:

• Bipolar disorder (BD) is a mood disorder characterized by significant mood fluctuations.
• Maintaining remission in bipolar disorder is crucial for long-term patient outcomes.
• Psychological distress and subclinical symptoms can persist even during periods of apparent remission.

Purpose of the Study:

• To assess the level of psychological distress in apparently remitted bipolar disorder patients.
• To investigate the longitudinal fluctuations in psychopathology during remission.
• To compare distress levels between bipolar patients and healthy controls.

Main Methods:

• Longitudinal study over 6 months.
• Inclusion of 9 apparently remitted bipolar patients attending a lithium clinic.
• Observer-rated assessment using the Brief Psychiatric Rating Scale (BPRS).
• Self-rated assessment using the Symptom Questionnaire (SQ).
• Bi-weekly assessments.
• Comparison with normal control subjects.

Main Results:

• Substantial clinical fluctuations in psychopathology were observed in bipolar patients.
• Patients displayed significantly higher BPRS and SQ scores for anxiety.
• Patients showed significantly higher BPRS and SQ scores for somatization.
• Total distress scores were significantly higher in bipolar patients compared to controls.

Conclusions:

• Apparently remitted bipolar disorder patients experience significant psychological distress, anxiety, and somatization.
• Psychopathology can fluctuate substantially even during periods of clinical remission.
• Bipolar disorder is associated with persistent distress compared to healthy individuals.