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Assessing the effectiveness of statin therapy for alleviating cerebral small vessel disease progression in people ?75?years of age.

ABSTRACT: BACKGROUND:Statins have been recommended by several guidelines as the primary prevention medication for cardiovascular diseases. However, the benefits of statin therapy for cerebral small vessel disease (CSVD), particularly in adults ?75?years of age, have not been fully evaluated. METHODS:We analyzed the data from a prospective population-based cohort study and a randomized, double-blind, placebo-controlled clinical trial to determine whether statin therapy might aid in slowing the progression of CSVD in adults ?75?years of age. For the cohort study, 827 participants were considered eligible and were included in the baseline analysis. Subsequently, 781 participants were included in follow-up analysis. For the clinical trial, 227 participants were considered eligible and were used in the baseline and follow-up analyses. RESULTS:The white matter hyperintensities (WMH) volume, the WMH-to-intracranial volume (ICV) ratio, the prevalence of a Fazekas scale score???2, lacunes, enlarged perivascular spaces (EPVS), and microbleeds were significantly lower in the statin group than the non-statin group at baseline in the cohort study (all P??0.05). CONCLUSIONS:Our findings indicated that statin therapy alleviated the progression of WMH, lacunes, and EPVS without elevating the risk of microbleeds. On the basis of the observed results, we concluded that statin therapy is an efficient and safe intervention for CSVD in adults ?75?years of age. TRIAL REGISTRATION:Chictr.org.cn: ChiCTR-IOR-17013557 , date of trial retrospective registration November 27, 2017 and ChiCTR-EOC-017013598 , date of trial retrospective registration November 29, 2017.

SUBMITTER: Guo Y

PROVIDER: S-EPMC7430010 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Assessing the effectiveness of statin therapy for alleviating cerebral small vessel disease progression in people ≥75 years of age.

Guo Yuqi Y Li Yunpeng Y Liu Xukui X Cui Yi Y Zhao Yingxin Y Sun Shangwen S Jia Qing Q Chai Qiang Q Gong Gary G Zhang Hua H Liu Zhendong Z

BMC geriatrics 20200817 1

<h4>Background</h4>Statins have been recommended by several guidelines as the primary prevention medication for cardiovascular diseases. However, the benefits of statin therapy for cerebral small vessel disease (CSVD), particularly in adults ≥75 years of age, have not been fully evaluated.<h4>Methods</h4>We analyzed the data from a prospective population-based cohort study and a randomized, double-blind, placebo-controlled clinical trial to determine whether statin therapy might aid in slowing t ...[more]

PMID: 32807086

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Project description:ImportanceData are limited regarding statin therapy for primary prevention of atherosclerotic cardiovascular disease (ASCVD) in adults 75 years and older.ObjectiveTo evaluate the role of statin use for mortality and primary prevention of ASCVD in veterans 75 years and older.Design, setting, and participantsRetrospective cohort study that used Veterans Health Administration (VHA) data on adults 75 years and older, free of ASCVD, and with a clinical visit in 2002-2012. Follow-up continued through December 31, 2016. All data were linked to Medicare and Medicaid claims and pharmaceutical data. A new-user design was used, excluding those with any prior statin use. Cox proportional hazards models were fit to evaluate the association of statin use with outcomes. Analyses were conducted using propensity score overlap weighting to balance baseline characteristics.ExposuresAny new statin prescription.Main outcomes and measuresThe primary outcomes were all-cause and cardiovascular mortality. Secondary outcomes included a composite of ASCVD events (myocardial infarction, ischemic stroke, and revascularization with coronary artery bypass graft surgery or percutaneous coronary intervention).ResultsOf 326 981 eligible veterans (mean [SD] age, 81.1 [4.1] years; 97% men; 91% white), 57 178 (17.5%) newly initiated statins during the study period. During a mean follow-up of 6.8 (SD, 3.9) years, a total 206 902 deaths occurred including 53 296 cardiovascular deaths, with 78.7 and 98.2 total deaths/1000 person-years among statin users and nonusers, respectively (weighted incidence rate difference [IRD]/1000 person-years, -19.5 [95% CI, -20.4 to -18.5]). There were 22.6 and 25.7 cardiovascular deaths per 1000 person-years among statin users and nonusers, respectively (weighted IRD/1000 person-years, -3.1 [95 CI, -3.6 to -2.6]). For the composite ASCVD outcome there were 123 379 events, with 66.3 and 70.4 events/1000 person-years among statin users and nonusers, respectively (weighted IRD/1000 person-years, -4.1 [95% CI, -5.1 to -3.0]). After propensity score overlap weighting was applied, the hazard ratio was 0.75 (95% CI, 0.74-0.76) for all-cause mortality, 0.80 (95% CI, 0.78-0.81) for cardiovascular mortality, and 0.92 (95% CI, 0.91-0.94) for a composite of ASCVD events when comparing statin users with nonusers.Conclusions and relevanceAmong US veterans 75 years and older and free of ASCVD at baseline, new statin use was significantly associated with a lower risk of all-cause and cardiovascular mortality. Further research, including from randomized clinical trials, is needed to more definitively determine the role of statin therapy in older adults for primary prevention of ASCVD.

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Dataset Information

Assessing the effectiveness of statin therapy for alleviating cerebral small vessel disease progression in people ?75?years of age.

Publications

Assessing the effectiveness of statin therapy for alleviating cerebral small vessel disease progression in people ≥75 years of age.

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