Document Detail

Evidence for Cholesterol Hyperabsorbers and Hyperproducers Based on Comparative Low-Density Lipoprotein Reductions Achieved by Ezetimibe Versus Statins.
MedLine Citation:
PMID:  22785146     Owner:  NLM     Status:  Publisher    
PURPOSE:: To investigate the hypothesis that some patients are hyperproducers of cholesterol while others are hyperabsorbers by comparing the low-density lipoprotein (LDL) responses to statins versus ezetimibe adjunct therapy. METHODS:: Consecutive patients (N = 109), who rec eived statin monotherapy followed by ezetimibe adjunct therapy, were prospectively studied. The expected LDL levels for each patient on statin and on ezetimibe adjunct therapy were calculated. The difference between expected and actual LDL levels on statin and on ezetimibe adjunct therapy was calculated for each patient and subsequently correlated. RESULTS:: The mean LDL levels (mg/dL) were baseline, 168.7 ± 3.6; on statin, 104.2 ± 2.6; on ezetimibe adjunct, 74.2 ± 2.2. Statins reduced LDL by 36.7 ± 1.5%, while adding ezetimibe resulted in a further reduction of 28.1 ± 1.4%. The percent LDL reduction by statin was negatively correlated to the percent reduction by ezetimibe adjunct therapy (r = -0.29, P = .002). The difference between expected and actual LDL levels on statin was negatively correlated to that on ezetimibe adjunct therapy (r = -0.38, P < .001). CONCLUSIONS:: This study demonstrated that the LDL response to ezetimibe is inversely related to the response to statin. This lends support to the hypothesis that some patients may be hyperabsorbers of cholesterol while others may be hyperproducers. This suggests that a less than expected response to the initial dose of statin in a patient would likely require the addition of ezetimibe to achieve the recommended target levels in spite of the use of maximum dose statin therapy.
Janek Senaratne; Jo Griffiths; Karen Macdonald; Manohara P J Senaratne
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-10
Journal Detail:
Title:  Journal of cardiopulmonary rehabilitation and prevention     Volume:  -     ISSN:  1932-751X     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101291247     Medline TA:  J Cardiopulm Rehabil Prev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Division of Cardiology, Grey Nuns Hospital, University of Alberta, Edmonton, Alberta, Canada.
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