🧬 What is Rett Syndrome? rare neurodevelopmental disorder

Rett syndrome is a rare, genetic neurological disorder that affects brain development, primarily in females. It is caused by mutations in the MECP2 gene on the X chromosome. The condition leads to severe impairments in communication, movement, and daily functioning.

Key facts:

• Affects approximately 1 in 10,000 to 15,000 female births.
• Almost exclusively affects females — males with the mutation typically have severe symptoms and rarely survive.
• Most cases are sporadic (not inherited), occurring randomly during conception.
• It is a lifelong condition with no cure, but early intervention and supportive care can improve quality of life.
• Rett syndrome is often misdiagnosed initially as autism or cerebral palsy.

📊 Stages of Rett Syndrome progression over time

Rett syndrome typically follows a predictable pattern of stages, though the severity and timing can vary between individuals:

• Stage I (Early Onset): 6-18 months — subtle developmental delays, decreased interest in play, reduced eye contact, and slower head growth.
• Stage II (Rapid Deterioration): 1-4 years — loss of purposeful hand movements, loss of speech, hand-wringing/ hand-stereotypies, breathing irregularities, and autistic-like features.
• Stage III (Plateau/Pseudostationary): 2-10 years — stabilization of symptoms, but severe motor and communication impairments remain. Some improvement in eye contact and communication may occur.
• Stage IV (Late Motor Deterioration): 10+ years — loss of mobility, muscle weakness, scoliosis, and dystonia. However, cognitive function may remain stable or even improve.

Understanding these stages helps families and clinicians provide appropriate support at each phase.

⚕️ Symptoms & Causes what we know

Genetic cause: Rett syndrome is caused by mutations in the MECP2 gene located on the X chromosome. This gene is responsible for producing a protein essential for normal brain development and function.

Common symptoms include:

• Loss of purposeful hand skills: Hand-wringing, hand-clapping, or repetitive hand movements (stereotypies).
• Loss of speech: Children typically develop some speech and then lose it between 1-3 years of age.
• Motor difficulties: Loss of mobility, gait abnormalities, tremors, and dystonia.
• Breathing irregularities: Hyperventilation, breath-holding, or apnea.
• Seizures: Occur in approximately 80% of individuals with Rett syndrome.
• Growth issues: Slow head growth (microcephaly), short stature, and weight gain problems.
• Autistic-like behaviours: Social withdrawal, lack of interest in others, and repetitive behaviours.
• Scoliosis: Curvature of the spine is common, especially in later stages.

🔍 Early Signs & Red Flags when to seek evaluation

Early recognition is important for timely intervention. Watch for these early signs in infants and toddlers:

• Between 6-12 months: Decreased eye contact, reduced interest in toys, delayed crawling, and slower head growth.
• Between 12-18 months: Loss of hand skills, loss of babbling or first words, repetitive hand movements (wringing, clapping).
• Between 18-24 months: Significant regression in skills, social withdrawal, and onset of hand stereotypies.
• Additional concerns: Breathing irregularities, seizures, feeding difficulties, and sleep disturbances.

If you notice any of these signs, particularly regression or loss of skills, consult a paediatric neurologist immediately.

🩺 Diagnosis & Assessment how Rett syndrome is identified

Diagnosis of Rett syndrome involves a combination of clinical evaluation and genetic testing:

• Clinical criteria: A diagnosis can be made based on clinical features — normal development followed by regression, loss of hand skills, and specific movement patterns.
• Genetic testing: Blood test to check for MECP2 gene mutations (found in 80-90% of classic cases).
• Multidisciplinary evaluation: Assessment by a paediatric neurologist, developmental paediatrician, and other specialists.
• Additional tests: EEG (to monitor seizures), brain imaging (MRI), and developmental assessments.

Diagnostic criteria (revised 2010):

• Mandatory criteria: Normal prenatal and perinatal period, normal head circumference at birth, developmental regression, loss of purposeful hand skills, and loss of spoken language.
• Supportive criteria: Breathing abnormalities, bruxism (teeth grinding), sleep disturbances, cold feet, and gait abnormalities.

Early diagnosis allows families to access supportive care and therapeutic interventions.

🛠️ Support & Intervention comprehensive, lifelong care

There is no cure for Rett syndrome, but a multidisciplinary approach can significantly improve quality of life. Our centre offers:

• Physiotherapy: To maintain mobility, prevent contractures, improve posture, and address gait abnormalities. Includes stretching, positioning, and hydrotherapy.
• Occupational Therapy: To maintain hand function, develop alternative communication methods (eye-gaze, switches), and support daily living activities.
• Speech & Language Therapy: To support communication using AAC (Augmentative and Alternative Communication), eye-gaze technology, and visual supports.
• Medical Management: Seizure control with anti-epileptic medications, management of breathing irregularities, and treatment of gastrointestinal issues (reflux, constipation).
• Orthopaedic Support: Monitoring and treatment of scoliosis, including bracing or surgical intervention if needed.
• Nutritional Support: Feeding therapy, dietary management, and consideration of gastrostomy tube (G-tube) if feeding difficulties arise.
• Music & Sensory Therapy: Music therapy, sensory integration, and environmental modifications to promote engagement and wellbeing.
• Family Support & Respite: Counselling, support groups, and respite care to support families in their caregiving journey.

Our approach: We focus on maximizing quality of life, preserving abilities, and supporting families every step of the way. We believe in the power of early intervention and compassionate, individualized care.