Journal of paediatrics and child health · 2026
A Systematic Review of Clinical and Genetic Approaches to VACTERL Association.
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Bowden Rachel, Martinez Noelia Nunez
Аннотация
AIM: To systematically review clinical and genetic testing approaches to VACTERL association, a non-random co-occurrence of congenital anomalies involving the vertebrae, anus, cardiac system, trachea-oesophagus, renal system, and limbs. The review will examine investigation strategies used in clinical practice and evaluate the diagnostic yield of genetic testing in affected individuals.
METHODS: A systematic search of PubMed, MEDLINE, EMBASE, Web of Science, and CINAHL was conducted from database inception to 1 December 2024. Eligible studies included English-language human studies reporting genetic testing in individuals with VACTERL association. Grey literature and studies limited to management were excluded. Risk of bias and certainty of evidence were assessed using Joanna Briggs Institute tools and the Grading of Recommendations Assessment, Development, and Evaluation.
RESULTS: A total of 65 articles met inclusion criteria-32 observational studies, 20 case reports, 9 case series, and 4 expert opinions. Findings were tabulated and narratively synthesised. Reported diagnostic yields were 2%-31% for chromosomal microarrays and 5%-22% for whole-exome sequencing.
CONCLUSIONS: Definitions of VACTERL and diagnostic approaches vary widely. Limitations of the evidence base include study heterogeneity, reliance on retrospective designs, outdated technologies, and lack of meta-analyses. Prospective studies are needed to develop protocols. In the interim, imaging, complete blood count and film, chromosomal microarray, chromosomal breakage studies, and exome or genome sequencing should be considered for patients with two or more VACTERL features, or selected individuals with an isolated feature. This recommendation is based on the implications of a molecular diagnosis for management. Key diagnostic elements and differential diagnoses are summarised.
METHODS: A systematic search of PubMed, MEDLINE, EMBASE, Web of Science, and CINAHL was conducted from database inception to 1 December 2024. Eligible studies included English-language human studies reporting genetic testing in individuals with VACTERL association. Grey literature and studies limited to management were excluded. Risk of bias and certainty of evidence were assessed using Joanna Briggs Institute tools and the Grading of Recommendations Assessment, Development, and Evaluation.
RESULTS: A total of 65 articles met inclusion criteria-32 observational studies, 20 case reports, 9 case series, and 4 expert opinions. Findings were tabulated and narratively synthesised. Reported diagnostic yields were 2%-31% for chromosomal microarrays and 5%-22% for whole-exome sequencing.
CONCLUSIONS: Definitions of VACTERL and diagnostic approaches vary widely. Limitations of the evidence base include study heterogeneity, reliance on retrospective designs, outdated technologies, and lack of meta-analyses. Prospective studies are needed to develop protocols. In the interim, imaging, complete blood count and film, chromosomal microarray, chromosomal breakage studies, and exome or genome sequencing should be considered for patients with two or more VACTERL features, or selected individuals with an isolated feature. This recommendation is based on the implications of a molecular diagnosis for management. Key diagnostic elements and differential diagnoses are summarised.