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Articles by Mark J. Cziraky
Total Records ( 2 ) for Mark J. Cziraky
  Scott L. Charland , Mark J. Cziraky , Ralph Quimbo , Richard H. Karas , William Insull , Michael Davidson and Eric J. Stanek
 

Background

Cardiovascular (CV) event risk is significantly lower in patients with combined low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG) at desired levels versus those without lower levels. However, this has not been investigated relative to specific patterns of baseline lipid abnormalities.

Objective

To evaluate the association between desired combined lipid value achievement and risk of CV events in patients with different baseline lipid profiles.

Methods

A retrospective managed care database analysis among treatment-naive adults with elevated CV event risk, ≥12 months follow-up, and full lipid panel from January 1, 2001 to December 31, 2001 plus ≥1 panel before a CV event or study end. Patients were stratified into three baseline cohorts: isolated high LDL-C (Cohort 1), high LDL-C + low HDL-C or high TG (Cohort 2), and high LDL-C, low HDL-C, and high TG (Cohort 3). CV event risk stratified by combined desired lipid value achievement was assessed in each cohort.

Results

Achievement of combined desired lipid values/median days to achievement was 29% in 385 days (Cohort 1), 11% in 413 days (Cohort 2), and 7% in 505 days (Cohort 3). Achievement of combined desired lipid values was associated with an adjusted 25%-46% lower CV event risk in Cohort 1 (hazards ratio, 0.75; 95% confidence interval 0.65-0.87), Cohort 2 (hazards ratio, 0.54; 95% confidence interval 0.43-0.67), and Cohort 3 (hazard ratio, 0.54; 95% confidence interval 0.37-0.78).

Conclusion

Patients with combined desired lipid values had lower risk of CV events versus those without such values. The risk reduction was greatest among patients with multiple lipid abnormalities, suggesting a potential benefit of interventions targeting low HDL-C and/or high TG in addition to high LDL-C.

  Mark J. Cziraky , Vincent J. Willey , James M. McKenney , Siddhesh A. Kamat , Maxine D. Fisher , John R. Guyton , Terry A. Jacobson and Michael H. Davidson
 

Background

The occurrence of low rates of rhabdomyolysis among patients receiving lipid-lowering drugs (LLDs) in randomized clinical trials may be elucidated with population-based studies.

Objective

To determine the risk of hospitalized rhabdomyolysis associated with LLD therapy.

Methods

This observational study used claims data from 9 million members of five United States health plans to identify patients (≥18 years) who received >2 statin and nonstatin LLDs during July 2000 to December 2004. Inpatient International Classification of Diseases, Ninth Revision, Clinical Modification, codes for rhabdomyolysis (791.3, 728.89, and 728.88) were observed during the follow-up period; cases were confirmed with patients' medical records. Rhabdomyolysis events were reported per 10,000 person-years of LLD exposure; multivariate analysis was conducted.

Results

The study cohort (N = 473,343) received 490,988 and 11,624 person-years of LLD, and combination therapy, respectively. Medical charts were obtained for 104 of 144 eligible patients with rhabdomyolysis claims; 42 cases were confirmed. With atorvastatin as reference, rhabdomyolysis rates (95% confidence interval) were greatest for cerivastatin, 8.4 (2.3-21.7); no difference among available statins was observed. Rates for other LLD monotherapies were: niacin, 2.1 (0.3−7.7), ezetimibe, 2.1 (0.3−7.8), fenofibrate, 0 (0−1.7), and gemfibrozil, 2.0 (0.5−5.2). Multivariate analysis showed only cerivastatin with a significantly greater risk of rhabdomyolysis (odds ratio 4.74, 95% confidence interval 1.1-21.2, P = .041) versus atorvastatin among the statins. Combination therapies had increased rhabdomyolysis risk (OR 7.1, 1.6-31.6, P = .010) versus LLDs alone.

Conclusion

The risk of habdomyolysis among hospitalized patients receiving statins was low; no difference among the available statins was evident. Further data are needed to establish the risk profile but current findings already offer guidance to physicians.

 
 
 
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