Document Detail


Patterns of late gadolinium enhancement are associated with ventricular stiffness in patients with advanced non-ischaemic dilated cardiomyopathy.
MedLine Citation:
PMID:  19383672     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIMS: Despite the prognostic importance of ventricular filling and ventricular-arterial interaction in patients with advanced systolic heart failure, the structural determinants of these parameters have not been fully studied. We aimed to investigate whether patterns of late gadolinium enhancement (LGE) on cardiac magnetic resonance affect ventricular elastic properties or performance in patients with non-ischaemic dilated cardiomyopathy (DCM).
METHODS AND RESULTS: Patients (n = 49) with markedly reduced systolic function (left ventricular (LV) ejection fraction <35%) due to longstanding non-ischaemic DCM underwent contrast-enhanced cardiac magnetic resonance after comprehensive echo-Doppler evaluations. The single beat-derived end-diastolic elastance, end-systolic elastance, arterial elastance, and dyssynchrony indices were measured by echo. On the basis of LGE patterns, patients could be divided into three groups: non-LGE (n = 18), non-midwall LGE (n = 13), and midwall LGE (n = 18). The midwall LGE group had lower LV systolic longitudinal velocity (4.6 +/- 1.7 for non-LGE vs. 4.3 +/- 1.2 for non-midwall LGE vs. 3.5 +/- 1.0 cm/s for midwall LGE, P = 0.025), higher end-diastolic elastance index (0.41 +/- 0.21 vs. 0.46 +/- 0.31 vs. 0.85 +/- 0.51 respectively, P = 0.008), and a more impaired ventriculoarterial coupling index (3.14 +/- 1.53 vs. 2.88 +/- 1.94 vs. 5.52 +/- 3.18, P = 0.006) than other subgroups.
CONCLUSION: Patients with midwall LGE had a higher ventricular stiffness index and more impaired ventriculoarterial coupling when compared with other non-ischaemic DCM patients.
Authors:
Eui-Young Choi; Byoung Wook Choi; Sung-Ai Kim; Sang Jae Rhee; Chi Young Shim; Young Jin Kim; Seok-Min Kang; Jong-Won Ha; Namsik Chung
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-04-21
Journal Detail:
Title:  European journal of heart failure     Volume:  11     ISSN:  1388-9842     ISO Abbreviation:  Eur. J. Heart Fail.     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-05-26     Completed Date:  2009-09-01     Revised Date:  2011-06-08    
Medline Journal Info:
Nlm Unique ID:  100887595     Medline TA:  Eur J Heart Fail     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  573-80     Citation Subset:  IM    
Affiliation:
Cardiology Division, Yonsei Cardiovascular Center and Cardiovascular Research Institute, Shinchon-dong 134, Seoul, South Korea 120-752.
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MeSH Terms
Descriptor/Qualifier:
Cardiomyopathy, Dilated / diagnosis*,  physiopathology
Contrast Media / adverse effects*
Echocardiography, Doppler
Elasticity / drug effects
Female
Follow-Up Studies
Gadolinium DTPA / adverse effects*,  diagnostic use
Heart Ventricles / pathology,  physiopathology*,  ultrasonography
Humans
Magnetic Resonance Angiography / adverse effects,  methods*
Male
Middle Aged
Myocardial Contraction / drug effects*
Prospective Studies
Risk Factors
Chemical
Reg. No./Substance:
0/Contrast Media; 80529-93-7/Gadolinium DTPA

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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