Paroxysmal non-kinesigenic dyskinesia, post-streptococcal syndromes and psychogenic movement disorders: a diagnostic...

Area of Science:

• Neurology
• Psychiatry
• Pediatrics

Background:

• Hyperkinetic movements in adolescents can mimic various neurological conditions.
• Post-streptococcal syndromes are considered in cases with relevant infectious history and elevated antibody titers.

Observation:

• A 15-year-old male presented with sudden, severe hyperkinetic movements affecting limbs, trunk, and neck.
• Initial investigations suggested paroxysmal non-kinesigenic dyskinesia, with elevated antistreptolysin O titers pointing towards a post-streptococcal etiology.
• Standard treatments for dyskinesia and post-streptococcal syndrome yielded no improvement.

Findings:

• A subsequent psychiatric assessment identified the movement disorder as psychogenic.
• Psychodynamic psychotherapy and individual counseling were initiated.
• The patient experienced progressive improvement in psychological symptoms and gradual resolution of hyperkinetic episodes.

Implications:

• This case underscores the necessity of considering psychogenic movement disorders in the differential diagnosis of hyperkinetic movements, even with initial neurological signs.
• Psychiatric interventions can be highly effective in managing psychogenic movement disorders.
• Early and accurate diagnosis through a multidisciplinary approach is crucial for effective treatment and improved patient outcomes.