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Cochrane Database Syst Rev. 2011 Aug 10;(8):CD008840. doi: 10.1002/14651858.CD008840.pub2.

Newborn screening for homocystinuria.

Author information

  • 1Willink Biochemical Genetics Unit, Royal Manchester Children's Hospital, Pendlebury, Manchester, UK, M27 4HA.

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Abstract

BACKGROUND:

Homocystinuria is a rare inherited disorder due to a deficiency in cystathionine beta synthase. Individuals with this condition appear normal at birth but develop serious complications in childhood. Diagnosis and treatment started sufficiently early in life can effectively prevent or reduce the severity of these complications.

OBJECTIVES:

To determine if newborn population screening for the diagnosis of homocystinuria due to cystathionine beta synthase deficiency leads to clinical benefit compared to later clinical diagnosis.

SEARCH STRATEGY:

We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group's Inborn Errors of Metabolism Trials Register.Date of the most recent search of the Inborn Errors of Metabolism Register: 27 June 2011.

SELECTION CRITERIA:

Randomised controlled trials and controlled clinical trials assessing the use of any neonatal screening test to diagnose infants with homocystinuria before the condition becomes clinically evident. Eligible studies compare a screened population versus a non-screened population.

DATA COLLECTION AND ANALYSIS:

No studies were identified for inclusion in the review.

MAIN RESULTS:

No studies were identified for inclusion in the review.

AUTHORS' CONCLUSIONS:

We were unable to identify eligible studies for inclusion in this review and hence it is not possible to draw any conclusions based on controlled studies; however, we are aware of uncontrolled case-series which support the efficacy of newborn screening for homocystinuria and its early treatment. Any future randomised controlled trial would need to be both multicentre and long term in order to provide robust evidence for or against screening and to allow a cost effectiveness analysis to be undertaken.

PMID:
21833972
[PubMed - indexed for MEDLINE]
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