期刊
ORPHANET JOURNAL OF RARE DISEASES
卷 17, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13023-022-02450-2
关键词
Neurological disease; Attention deficit hyperactivity disorder; Overweight; Phenylketonuria; LATAM
资金
- Biomarin Farmaceutica LTDA
This is a systematic literature review investigating the impact of phenylketonuria (PKU) on affected individuals and healthcare resources in Latin American countries. The results demonstrate a high clinical burden in PKU patients in Latin American countries, with intellectual disability, motor delay, and speech deficit being common complications.
Background Phenylketonuria (PKU) is an inborn error of metabolism caused by a deficiency of the enzyme phenylalanine hydroxylase. If untreated, the complications of PKU lead to significant neucognitive and neuropsychiatric impairments, placing a burden on both the individual's quality of life and on the healthcare system. We conducted a systematic literature review to characterize the impact of PKU on affected individuals and on healthcare resources in Latin American (LATAM) countries. Methods Searches of the global medical literature as well as regional and local medical literature up to September 2021. Observational studies on patients with PKU from any LATAM country. Pairs of reviewers independently screened eligible articles, extracted data from included studies, and assessed their risk of bias. Results 79 unique studies (47 cross-sectional studies, 18 case series, 12 case reports, and two cohort studies) with a total of 4090 patients were eligible. Of these studies, 20 had data available evaluating early-diagnosed PKU patients for meta-analysis of burden outcomes. Intellectual disability in the pooled studies was 18% [95% Confidence Interval (CI) 0.04-0.38; I-2 = 83.7%, p = 0.0133; two studies; n = 114]. Motor delay was 15% [95% CI 0.04-0.30; I-2 = 74.5%, p = 0.0083; four studies; n = 132]. Speech deficit was 35% [95% CI 0.08-0.68; I-2 = 93.9%, p < 0.0001; five studies; n = 162]. Conclusions There is currently evidence of high clinical burden in PKU patients in LATAM countries. Recognition that there are many unmet neuropsychological needs and socioeconomic challenges faced in the LATAM countries is the first step in planning cost-effective interventions.
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