Document Detail


Myocardial fibrosis attenuates the effect of cibenzoline on left ventricular diastolic function in patients with hypertrophic cardiomyopathy.
MedLine Citation:
PMID:  21052009     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The aim of this study was to investigate the relationship between late gadolinium enhancement (LGE) and the effect of cibenzoline (CBZ) on left ventricular (LV) diastolic function in hypertrophic cardiomyopathy (HCM) patients. Echocardiography before and after intravenous CBZ (1.4 mg/kg over 5 minutes) and magnetic resonance imaging (MRI) were performed in 22 consecutive patients with HCM [mean age: 65 ± 14 years, obstructive HCM: 14, nonobstructive HCM (HNCM): 8]. The extent of LGE (%LGE = LGE volume/total LV volume) was obtained by contrast-enhanced MRI using custom software. LGE was observed in 19 patients (mean %LGE = 5.1% ± 3.9%). The propagation velocity of LV early filling flow (Vp) increased significantly in patients with obstructive HCM (26 ± 7 to 36 ± 14 cm/s, P = 0.001) and nonobstructive HCM (25 ± 9 to 36 ± 16 cm/s, P = 0.007). A significant negative correlation was observed between the change in Vp and %LGE in patients with HCM (r = 20.542, P = 0.009). Less extensive myocardial fibrosis, as demonstrated by LGE on contrast-enhanced MRI, may predict the ability of CBZ to improve LV diastolic function in HCM.
Authors:
Makoto Saito; Hideki Okayama; Toyofumi Yoshii; Go Hiasa; Takumi Sumimoto; Shinji Inaba; Kazuhisa Nishimura; Katsuji Inoue; Akiyoshi Ogimoto; Yuji Shigematsu; Jun-ichi Funada; Mareomi Hamada; Jitsuo Higaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of cardiovascular pharmacology     Volume:  57     ISSN:  1533-4023     ISO Abbreviation:  J. Cardiovasc. Pharmacol.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-05-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7902492     Medline TA:  J Cardiovasc Pharmacol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  207-12     Citation Subset:  IM    
Affiliation:
Department of Cardiology, Kitaishikai Hospital, Ozu, Japan.
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