Cardiovascular System - Double Outlet Right Ventricle: Difference between revisions
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=LA85.2 Double Outlet Right Ventricle= | |||
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! {{ICD-11}} | |||
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| [https://icd.who.int/browse11/l-m/en#/http://id.who.int/icd/entity/141717788 '''LA85.2''' Double outlet right ventricle] | |||
: ''A congenital cardiovascular malformation in which both great arteries arising entirely or predominantly from the morphologically right ventricle''. | |||
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==Introduction== | ==Introduction== | ||
[[File:Double_Outlet_Right_Ventricle.jpg|thumb|300px|alt=Double Outlet Right Ventricle cartoon|Double Outlet Right Ventricle]] | [[File:Double_Outlet_Right_Ventricle.jpg|thumb|300px|alt=Double Outlet Right Ventricle cartoon|Double Outlet Right Ventricle]] | ||
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* '''HAND1 loss-of-function mutation contributes to congenital double outlet right ventricle''' | * '''HAND1 loss-of-function mutation contributes to congenital double outlet right ventricle'''{{#pmid:28112363|PMID28112363}} "In the present study, the coding exons and flanking introns of the heart and neural crest derivatives expressed transcript 1 (HAND1) gene, which encodes a basic helix‑loop‑helix transcription factor crucial for cardiovascular development, were sequenced in 158 unrelated patients with CHDs, and a de novo heterozygous mutation, p.K132X, was identified in a patient with double outlet right ventricle (DORV), as well as ventricular septal defect. The nonsense mutation, which was predicted to produce a truncated HAND1 protein lacking 84 carboxyl‑terminal amino acids, was absent in 600 control chromosomes. Functional analyses revealed that the HAND1 K132X mutant had no transcriptional activity. Furthermore, the mutation disrupted the synergistic activation between HAND1 and GATA binding protein 4 (GATA4), another cardiac core transcription factor causally linked to CHDs. To the best of our knowledge, this is the first report on the association of HAND1 loss‑of‑function mutation with an enhanced susceptibility to DORV in humans. These findings expand the phenotypic spectrum linked to HAND1 mutations, suggesting potential implications for the development of novelo prophylactic and therapeutic strategies for DORV." | ||
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| [[File:Mark_Hill.jpg|90px|left]] {{Most_Recent_Refs}} | | [[File:Mark_Hill.jpg|90px|left]] {{Most_Recent_Refs}} | ||
Search term: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Double+Outlet+Right+Ventricle ''Double Outlet Right Ventricle''] | Search term: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Double+Outlet+Right+Ventricle ''Double Outlet Right Ventricle''] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Taussig-Bing+malformation ''Taussig-Bing malformation''] | ||
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==Anatomy== | ==Anatomy== | ||
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===HAND1=== | ===HAND1=== | ||
Heart-And Neural Crest Derivatives-Expressed 1 (HAND1) gene located at | Heart-And Neural Crest Derivatives-Expressed 1 (HAND1) gene located at {{Chr5}}q32, is a 215-amino acid protein transcription factor that contains a bHLH region and several potential phosphorylation sites. The mouse and human sequences share 93% overall sequence identity. | ||
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===Reviews=== | ===Reviews=== | ||
{{#pmid:28007063}} | |||
{{#pmid:25523232}} | |||
===Articles=== | ===Articles=== | ||
{{#pmid:28197259}} | |||
===Search Pubmed=== | ===Search Pubmed=== |
Revision as of 15:08, 8 March 2019
Embryology - 24 Apr 2024 Expand to Translate |
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LA85.2 Double Outlet Right Ventricle
ICD-11 |
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LA85.2 Double outlet right ventricle
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Introduction
- 1-1.5% of Congenital Heart Disease
- Both large arteries arise wholly or mainly from the right ventricle.
- Arrangement of the atrioventricular valves and the ventriculoarterial connections are variable.
- Clinical manifestations variable.
If the pulmonary trunk retains its location above the morphologically right ventricle, then the end result will be yet another variant of double outlet right ventricle, specifically with a subpulmonary interventricular communication. This variation is known as the Taussig-Bing malformation.
Some Recent Findings
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More recent papers |
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This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.
More? References | Discussion Page | Journal Searches | 2019 References | 2020 References Search term: Double Outlet Right Ventricle | Taussig-Bing malformation |
Anatomy
A human heart with double outlet from the right ventricle, but with a doubly committed interventricular communication. The proximal outflow cushions have fused, but have failed to muscularise. Because of this, the outlet septum, derived from the fused cushions, is fibrous and hypoplastic.
Double Outlet from Right Ventricle
Genetics
HAND1
Heart-And Neural Crest Derivatives-Expressed 1 (HAND1) gene located at 5q32, is a 215-amino acid protein transcription factor that contains a bHLH region and several potential phosphorylation sites. The mouse and human sequences share 93% overall sequence identity.
- Links: OMIM - HAND1
References
Reviews
Fraser CD. (2017). The Neonatal Arterial Switch Operation: Technical Pearls. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu , 20, 38-42. PMID: 28007063 DOI.
Spicer DE, Hsu HH, Co-Vu J, Anderson RH & Fricker FJ. (2014). Ventricular septal defect. Orphanet J Rare Dis , 9, 144. PMID: 25523232 DOI.
Articles
Aherrera JA, Magno JD, Uy CC, Abrahan LL, Maria HF, Buitizon RR & Jara RD. (2015). The Triply Twisted Heart: Cyanosis in an Adult With Situs Inversus, Levocardia, Double Outlet Right Ventricle, and Malposition of the Great Arteries. Cardiol Res , 6, 362-366. PMID: 28197259 DOI.
Search Pubmed
Search Pubmed: Search PubMed
External Links
External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.