| Obesity is associated with impaired coronary collateral vessel development. | |
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MedLine Citation:
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PMID: 14634687 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Chronic myocardial ischaemia due to coronary artery stenosis or occlusion has been shown to increase the growth of coronary collateral circulation. Collateralization leads to increased oxygen delivery to the area at risk and hence may reduce ischaemia, prevent infarction and preserve contractile function. However, there is considerable variation among patient subsets in terms of the presence or degree of collateralization. We aimed to evaluate the relationship between obesity and coronary collateral development in patients with ischaemic heart disease. METHODS AND RESULTS: In all, 215 patients (mean age, 57.8+/-8.9 y) with body mass index (BMI)> or =30 kg/m(2) were enrolled into our study. A total of 90 age- and sex-matched patients (mean age, 58.7+/-10 y) with BMI<25 kg/m(2) and significant coronary artery disease were selected as a control group. The mean age and distribution of risk factors for coronary heart disease were not significantly different between two groups other than poorer HDL cholesterol and triglyceride profile in obese patients. The mean BMI was significantly higher in the patient group (33.3+/-2.4 vs 22.8+/-1.7, P<0.001). The mean number of diseased vessels and maximum lesion severity were not significantly different between the two groups. The mean Rentrop collateral score of the patient group was significantly worse than the control group (1.08+/-0.68 vs 2.10+/-0.72, P<0.001). CONCLUSIONS: Our findings suggest that collateral vessel development is poorer in obese patients (defined as BMI> or =30 kg/m(2)) with ischemic heart disease compared to normal range BMI, and the risk of having poor collateral vessel development is significantly increased. However, this might be reflecting the cluster of risk factors, associated with metabolic syndrome, in which insulin resistance plays a major role. |
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Authors:
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M B Yilmaz; S F Biyikoglu; Y Akin; U Guray; H L Kisacik; S Korkmaz |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity Volume: 27 ISSN: 0307-0565 ISO Abbreviation: Int. J. Obes. Relat. Metab. Disord. Publication Date: 2003 Dec |
Date Detail:
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Created Date: 2003-11-24 Completed Date: 2004-01-21 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9313169 Medline TA: Int J Obes Relat Metab Disord Country: England |
Other Details:
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Languages: eng Pagination: 1541-5 Citation Subset: IM |
Affiliation:
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Yuksek Ihtisas Hospital, Cardiology Clinic, Sihhiye, Ankara, Turkey. cardioceptor@ttnet.net.tr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Age Distribution Aged Body Mass Index Case-Control Studies Collateral Circulation* Coronary Artery Disease / complications, physiopathology* Coronary Circulation* Female Humans Male Middle Aged Obesity / complications, physiopathology* Risk Factors |
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