Angelman syndrome (AS) is a rare pediatric neurological condition in which patients most commonly present with inappropriate laughter, microcephaly, speech difficulties, seizures, and movement disorders. AS can be diagnosed clinically and confirmed with genetic testing. In this case report, the patient presented with 9.3% weight loss at two days of age. Although there were multiple attempts at lactational counseling and nutritional guidance, the patient was admitted to the hospital due to failure to thrive. Due to continued global developmental delay and upper and lower extremities hypotonia by the age of nine months, the patient was referred to a neurologist. Brain MRI was negative, and genetic testing revealed 15q11.2q13.1 deletion, which is consistent with AS. Through different therapies and intervention, the patient showed slow improvements in symptoms. This case illustrates the importance of early recognition of nonspecific clinical manifestations of AS. The general management for all AS patients includes physical therapy, speech therapy, mobility support devices, education, and behavioral therapy as they progress through life. Establishing an early diagnosis has potential long-term benefits of improved quality of life and outcomes for patients via early interventions such as physical therapy starting at the age of six months to improve gross motor function. When infants present with nonspecific clinical presentations such as failure to thrive and hypotonia, clinicians should maintain a lower threshold for suspecting genetic conditions, which will facilitate early diagnosis of AS.
CITATION STYLE
Dang, H., Srinivasa, S., Lee, S. Y., & Alprin, C. (2023). A Case Study of Early Diagnosed Angelman Syndrome: Recognizing Atypical Clinical Presentations. Cureus. https://doi.org/10.7759/cureus.39271
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