The most frequent mutations in our Chilean PKU population were p.Val388Met, c.442?_509+?del and c.1066-11G > A. It is possible to predict phenotype by detecting the genotype, and use this information to determine disease prognosis and adjust patient's medical and nutritional management accordingly.
Since neonatal screening and early nutritional treatment began, it has been possible to reverse the neurological damage that phenylketonuria (PKU) causes. Scientific evidence gathered over more than 50 years on the monitoring of individuals with PKU indicates that a phenylalanine level of about 6 mg/dL (360 mmol/L) is ideal and points to the necessity of starting a long-term phenylalanine-restricted diet in which blood phenylalanine level should stay between 2 and 6 mg/dL (120-360 mmol/L). This article aims to establish the general basis for proper monitoring of people with PKU and provide a useful tool for clinicians overseeing treatment. We hope to establish similar criteria throughout Latin America and create a uniform protocol in order to have comparative monitoring results for the region.
Energy recommendations for MSUD children are according to energy expenditure; thus the use of WHO equation is a clinically and statistically feasible tool for its determination.
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