[Mental disorders associated with multiple sclerosis]

Area of Science:

• Neurology
• Psychiatry
• Neuroimmunology

Background:

• Multiple sclerosis (MS) is a chronic, progressive neurological disease.
• Mental health disorders are frequently observed in individuals with MS.
• The relationship between MS and mental disorders can be complex, involving direct disease effects, increased vulnerability, or independent conditions.

Observation:

• Case 1: A patient with long-standing MS developed treatment-refractory cognitive disorders impacting quality of life.
• Case 2: A patient with MS experienced reactive depression and suicidal ideation, improving with psychotherapy despite disease progression.
• Case 3: A patient with MS presented with depression and compulsive-obsessive symptoms, requiring behavioral treatment for the latter.
• Case 4: A young patient with MS experienced hallucinations and suicidal ideation during cortisone treatment, later diagnosed with borderline personality disorder, with symptoms recurring independently of treatment and potentially linked to disease activity.

Findings:

• Mental disorders in MS patients manifest diversely, including cognitive decline, depression, obsessive-compulsive symptoms, and psychosis.
• The causality of these disorders varies, ranging from direct MS pathology to reactive or independent psychiatric conditions.
• Treatment responses differ, with some conditions being refractory while others improve with psychotherapy, behavioral therapy, or medication adjustments.

Implications:

• Early recognition and accurate diagnosis of mental disorders in MS are essential.
• Individualized treatment strategies are necessary to manage the complexity of psychiatric comorbidities in MS.
• Addressing mental health issues significantly contributes to improving the overall quality of life for individuals with multiple sclerosis.