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Erhart, P.* ; Gieldon, L.* ; Ante, M.* ; Körfer, D.* ; Strom, T.M. ; Grond-Ginsbach, C.* ; Böckler, D.*

Acute stanford type B aortic dissection-who benefits from genetic testing?

J. Thorac. Dis. 12, 6806-6812 (2020)
Verlagsversion DOI PMC
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Background: Stanford type B aortic dissection is a rare, life-threatening complex phenotype associated with several modifiable and genetic risk factors. In the current study of a hospital-based, consecutive series of aortic dissection patients we propose a selection based on age and family history of aortic disease for genetic testing and detection of causative gene variants. Methods: In this single center cohort study from 2013 to 2018 patients with acute Stanford type B aortic dissections were consecutively treated and analyzed by next generation sequencing based on selection criteria (age of disease onset ≤45 years and/or positive familial history for aortic disease) to detect genome-wide pathogenic variants in protein-coding sequences and to identify large copy number variants (CNV). Variants in a predefined panel of 30 genes associated with the familial thoracic aortic aneurysm and dissection (TAAD) syndrome were evaluated. Results: From 105 patients nine matched selection criteria for genetic testing. Next-generation sequencing analysis revealed causal variants in FBN1 (fibrillin-1) in three patients: a pathogenic missense variant [c.6661T>C, p.(Cys2221Arg)] and two truncating variants [c.4786C>T, p.(Arg1596Ter)] and [c.6366C>CA, p.(Asp2123GlufsTer5)]. A fourth patient carried a large (>1,000,000 bp) CNV in the long arm of chromosome 10, deleting eleven genes, including the whole ACTA2 (actin alpha 2) gene. The latter two genetic findings have not been reported before. Conclusions: Selection of patients on the basis of young age and familial inheritance of aortic disease favors the identification of disease-causing genetic variants in a clinical cohort of patients with Stanford type B aortic dissection.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Aortic Dissection Type B ; Connective Tissue Disorder ; Dissection (taad) ; Genetic Testing ; Precision Medicine ; Thoracic Aortic Aneurysm; Marfan-syndrome; Fbn1; Fibrillin-1; Aneurysms; Guidelines; Management
ISSN (print) / ISBN 2077-6624
e-ISSN 2072-1439
Zeitschrift Journal of thoracic disease
Quellenangaben Band: 12, Heft: 11, Seiten: 6806-6812 Artikelnummer: , Supplement: ,
Verlag Pioneer Bioscience Publ.
Verlagsort Hong Kong
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Human Genetics (IHG)
Förderungen German Society of Vascular Surgery (DGG Forschungsstipendium 2018)