Perturbations in the development of infants with Rett disorder and the implications for early diagnosis

Area of Science:

• Neurodevelopmental disorders
• Pediatric neurology
• Genetics

Background:

• Gene discovery in Rett disorder (RTT) is paving the way for clinical interventions.
• Early recognition of RTT in infants relies on clinician observation and diagnostic criteria.
• Home video studies reveal subtle, fluctuating early developmental perturbations in infants with RTT.

Purpose of the Study:

• To highlight the importance of early diagnostic criteria for Rett disorder.
• To identify and describe early clinical clues of Rett disorder observable in infants.
• To prepare for the implications of earlier diagnosis on families and healthcare providers.

Main Methods:

• Analysis of home video recordings of infants.
• Observations by experienced health practitioners.
• Transcription and review of home video content.

Main Results:

• Early clues to Rett disorder are identifiable through detailed observation of infant development.
• These early signs can be subtle and fluctuate over time.
• Current diagnosis often occurs after the onset of regression.

Conclusions:

• Early diagnosis of Rett disorder is anticipated before effective treatments are available.
• Earlier diagnosis will require proactive support for infants and families before overt symptoms manifest.
• Healthcare practitioners will play a vital role in supporting families during the pre-regression and regression phases.