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Abnormal glucose and lipid control in non-ischemic left ventricular dysfunction.
MedLine Citation:
PMID:  22879076     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Cardiovascular risk factors are classically associated with coronary atherosclerosis. We sought to investigate whether risk factors are also associated with left ventricular (LV) dilatation, contractile impairment and reduced myocardial blood flow (MBF) in patients with non-ischemic LV dysfunction. METHODS: We studied 81 patients (59 males, age 60 ± 9 years) with mild-to-severe LV dysfunction (mean ejection fraction 37%, range 19%-50%), no history of diabetes and normal coronary arteries. Absolute MBF was measured by positron emission tomography and (13)N-ammonia at rest and after dipyridamole (0.56 mg/kg I.V. over 4 min). RESULTS: Overt LV dysfunction (LV end-diastolic diameter >60 mm associated with LV ejection fraction <45%) was present in 42 patients (52%); severely depressed hyperemic MBF (<1.09 mL · min(-1) · g(-1)) was present in 41 patients (51%). Using multivariate logistic regression analysis, low high-density lipoprotein cholesterol (HDL-C, P < .036), newly diagnosed non-insulin-dependent diabetes or insulin-resistance (NIDD/IR, P < .019) and the use of diuretics (P = .001) were independently associated with overt LV dysfunction. Low HDL-C (P = .015) and NIDD/IR (P = .048) were also independently associated with severely depressed hyperemic MBF. CONCLUSIONS: Low HDL-C and NIDD/IR are associated with more severe LV impairment and reduced hyperemic MBF in non-ischemic LV dysfunction.
Authors:
Danilo Neglia; Tiziana Sampietro; Cecilia Vecoli; Riccardo Liga; Giuseppe Rossi; Elena Filidei; Federico Bigazzi; Patricia Iozzo; Daniela Giannessi; Antonio L'abbate; Daniele Rovai
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-10
Journal Detail:
Title:  Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology     Volume:  -     ISSN:  1532-6551     ISO Abbreviation:  J Nucl Cardiol     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9423534     Medline TA:  J Nucl Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
CNR Institute of Clinical Physiology, Pisa, Italy, dneglia@ifc.cnr.it.
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