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Diffuse left ventricular interstitial fibrosis is associated with sub-clinical myocardial dysfunction in Alstrom Syndrome: an observational study.


ABSTRACT: BACKGROUND:Alström syndrome is a rare inherited ciliopathy with progressive multisystem involvement. Dilated cardiomyopathy is common in infancy and recurs or presents de novo in adults with high rates of premature cardiovascular death. Although Alström syndrome is characterised by fibrosis in solid organs such as the liver, the pathogenesis of related cardiomyopathy are not clear. To date it is not known whether diffuse interstitial myocardial fibrosis is present before the onset of heart failure symptoms or changes in conventional parameters of left ventricular function. METHODS:In this observational study, 26 patients with Alström syndrome (mean age 27?±?9 years, 65 % male, 24 h ABPM 130?±?14 / 77?±?9 mmHg) without symptomatic cardiovascular disease were recruited from a single centre and compared to matched healthy controls. All subjects underwent cardiac MRI (1.5 T) to assess ventricular function, diffuse interstitial myocardial fibrosis by measurement of extracellular volume on T1-mapping (MOLLI) and coarse replacement fibrosis using standard late gadolinium enhancement imaging. RESULTS:Global extracellular volume was increased in Alström syndrome with wider variation compared to controls (0.30?±?0.05 vs. 0.25?±?0.01, p?

SUBMITTER: Edwards NC 

PROVIDER: S-EPMC4483224 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Diffuse left ventricular interstitial fibrosis is associated with sub-clinical myocardial dysfunction in Alström Syndrome: an observational study.

Edwards Nicola C NC   Moody William E WE   Yuan Mengshi M   Warfield Adrian T AT   Cramb Robert R   Paisey Richard B RB   Geberhiwot Tarekegn T   Steeds Richard P RP  

Orphanet journal of rare diseases 20150624


<h4>Background</h4>Alström syndrome is a rare inherited ciliopathy with progressive multisystem involvement. Dilated cardiomyopathy is common in infancy and recurs or presents de novo in adults with high rates of premature cardiovascular death. Although Alström syndrome is characterised by fibrosis in solid organs such as the liver, the pathogenesis of related cardiomyopathy are not clear. To date it is not known whether diffuse interstitial myocardial fibrosis is present before the onset of hea  ...[more]

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