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Published on: June 25, 2010
Follow up of phenylketonuria patients
M Demirkol1, M Giżewska, M Giovannini
1Div Nutrition and Metabolism, Children's Hospital, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey. demirkolm@istanbul.edu.tr
Insights
Lifelong blood phenylalanine control is crucial for phenylketonuria (PKU) patients
Area of Science:
- Metabolic disorders and genetic conditions.
Background:
- Phenylketonuria (PKU) management requires lifelong blood phenylalanine (phe) control for optimal neuropsychological outcomes.
- Adolescents and young adults face challenges in adhering to PKU follow-up strategies.
- Emerging therapies may alleviate the strict dietary phe restrictions for PKU patients.
Purpose of the Study:
- To review and update PKU follow-up guidelines.
- To address critical aspects of PKU management, including nutrition, metabolic control, and long-term health.
- To improve the transition to adulthood for individuals with PKU.
Main Methods:
- Review of current PKU follow-up policies and recent therapeutic advancements.
- Analysis of challenges in patient compliance and long-term management.
- Identification of unmet needs in the PKU population.
Main Results:
- Understanding of lifelong phe control's importance for neuropsychological outcomes has grown.
- Compliance remains a significant challenge, particularly in adolescents and young adults.
- New therapies offer potential to reduce dietary burdens.
Conclusions:
- Revisiting PKU follow-up guidelines is timely to incorporate new knowledge and therapies.
- Guidelines should address breastfeeding, metabolic control, nutritional biomarkers, neurocognitive and psychological assessments, bone health, and adult transition.
- Addressing unmet needs is essential for improving PKU patient outcomes.
Abstract:
In recent years our understanding of the follow up policies for PKU has increased substantially. In particular, we now understand the importance of maintaining control of blood phenylalanine (phe) concentrations life-long to achieve the best long-term neuropsychological outcomes. The concordance with the follow up strategy remains a key challenge for the future, especially with respect to adolescents and young adults. The recent therapies could ease the burden of the dietary phe restriction for PKU patients and their families. The time may be right for revisiting the guidelines for follow up of PKU in order to address a number of important issues related to PKU management: promotion of breastfeeding to complementary feeding up to 2 years of age for prevention of early growth retardation and later overweight development, treatment advancements for metabolic control, blood phe and tyr variability, routine screening measures for nutritional biomarkers, neurocognitive and psychological assessments, bone pathology, understanding the challenges of compliance and transitioning into adulthood as an individual with PKU and addressing unmet needs in this population.
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