I02.9

Clinical Causes: Previous Streptococcal Throat Infection: The most common trigger, leading to an autoimmune response. Autoimmune Reaction: Body's immune system mistakenly attacks healthy brain tissue, resulting in neurological symptoms. Genetic Predisposition: Certain genetic factors may increase susceptibility to autoimmune reactions triggered by infections.

Key Symptoms: Involuntary Movements: Rapid, purposeless movements especially in the hands, feet, and face. Muscle Weakness or Stiffness: Difficulties in controlling muscle movements. Emotional Changes: Mood swings, irritability, or obsessive behaviors. Speech Difficulties: Slurred or inconsistent speech patterns. Behavioral Symptoms: Nightmares, decreased attention span, or hyperactivity. Absence of Heart Involvement: No signs of heart inflammation such as chest pain or heart murmurs.

Diagnosis Path: Diagnosis is typically based on clinical evaluation, medical history, and ruling out other causes of movement disorders. Key steps include: - Thorough physical and neurological examination. - Recent history of streptococcal infection. - Blood tests to detect recent streptococcal infection. - Imaging studies like MRI may be used to exclude other neurological conditions. - Echocardiogram usually shows no heart involvement in this specific case.

Treatment Protocols: Treatment aims to manage symptoms and address any underlying infections. Common approaches include: - Medication to control involuntary movements, such as anticonvulsants or dopamine antagonists. - Antibiotic therapy to eradicate Streptococcal bacteria and prevent recurrence. - Supportive care: physical and occupational therapy to improve movement control. - Psychological support to address emotional and behavioral changes. - Monitoring for potential development of cardiac involvement, even if absent initially. While symptoms often improve over time, ongoing medical supervision ensures optimal recovery and management.