Physicians' Academy for Cardiovascular Education

Lower LDL‐c levels associated with CV and renal benefits in moderate CKD under statin treatment

Association of Low‐Density Lipoprotein Cholesterol Levels During Statin Treatment With Cardiovascular and Renal Outcomes in Patients With Moderate Chronic Kidney Disease

Literature - Yen CL, Fan PC, Lee CC, et al. - J Am Heart Assoc. 2022 Oct 4;11(19):e027516. doi: 10.1161/JAHA.122.027516

Introduction and methods

Background

Current lipid management guidelines of major American and European medical societies recommend lower target LDL‐c levels with advancing CKD stages [1,2]. This is mainly based on higher CVD risks from early to advanced CKD found in observational studies [3]. However, clinical trials and meta-analyses have indicated a potentially weaker association between CVD risk and LDL‐c level in patients with advanced CKD stages than in other high-risk populations [4-7].

Aim of the study

The study aim was to evaluate CV and renal outcomes in statin-treated patients with stage 3 CKD across different LDL‐c levels.

Methods

In this large-scale observational study, data from 8500 patients with newly diagnosed stage 3 CKD who received statin treatment were collected from the Chang Gung Research Database, a large, comprehensive medical database in Taiwan, for the period from 2001 through 2018. Based on their first LDL‐c level data within 3 months after the index date, patients were divided into the following 3 groups: <70 mg/dL, 70–99 mg/dL, and ≥100 mg/dL . To balance the baseline characteristics of these observational data, inverse probability of treatment weighting was performed.

Outcomes

The primary endpoint was the occurrence of major adverse cardiac and cerebrovascular events (MACCE), defined as the composite outcome of acute MI, ischemic stroke, or CV death. Secondary endpoints were all‐cause mortality, CV death, acute MI, ischemic stroke, intracerebral hemorrhage, new‐onset end‐stage renal disease (ESRD) requiring chronic dialysis, noninfectious hepatitis–related hospitalization, and rhabdomyolysis‐related hospitalization.

Main results

Conclusion

Among Taiwanese statin-treated patients with stage 3 CKD, patients with LDL-c levels 70–99 mg/dL and those with LDL‐c <70 mg/dL had decreased risks of ischemic stroke and new‐onset ESRD requiring chronic dialysis compared with patients with LDL‐c ≥100 mg/dL. Patients with LDL-c levels 70–99 mg/dL also had reduced risks of MACCE , a trend that–albeit slightly less pronounced–was also seen in patients with LDL‐c <70 mg/dL. According to the authors, setting a LDL‐c target of <70 mg/dL may prove to be slightly more beneficial in patients ≤65 years of age and in those with proteinuria.

References

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Find this article online at J Am Heart Assoc.

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