Prevention & lipids

Atherosclerotic Coronary Plaque Regression and Risk of Adverse Cardiovascular Events: A Systematic Review and Updated Meta-Regression Analysis

JAMA CardiolPublished Systematic review and meta-analysis (meta-regression) of intravascular ultrasound (IVUS) trials

Authors' conclusion

In this meta-analysis, regression of atherosclerotic plaque by 1% was associated with a 25% reduction in the odds of MACEs.

Study context

Population
Clinical prospective studies of lipid-lowering therapies reporting IVUS percent atheroma volume (PAV) change and MACE components, published July 2001–July 2022
Participants
7,407 participants · 23 studies
Comparison
Change in PAV and MACE
Outcome
Association between mean PAV change and MACE
Methodological detailsmixed-effects 2-level binomial logistic regression
  • Mixed-effects 2-level binomial logistic regression

Pooled result

As reported in the abstract

MACE per 1% decrease in PAV (meta-regression)
Estimate (95% CI)P value
1% decrease in mean PAVunadjusted
unadjusted OR 0.83(0.71–0.98)
P = 0.03
1% decrease in mean PAVadjusted for clinical covariates
adjusted OR 0.86(0.75–1.00)
P = 0.050
1% decrease in PAVfurther adjusted for CV risk factors
adjusted OR 0.81(0.68–0.96)
P = 0.01
1% reduction of PAV change between intervention and comparator arms within studieswithin-study
OR 0.75(0.56–1.00)
P = 0.046

Per 1% decrease in PAV, as printed

Further pooled results

OutcomeOR (95% CI)P value
MACE per 1% reduction of PAV change between intervention and comparator arms within studies0.75 (0.56–1.00)P = 0.046

Change in PAV across 46 study arms

Range of PAV change
−5.6% to 3.1%
Major adverse cardiovascular events (MACEs) per study arm
0 to 72

Original publication

Atherosclerotic Coronary Plaque Regression and Risk of Adverse Cardiovascular Events: A Systematic Review and Updated Meta-Regression Analysis. JAMA Cardiol. Published 1 October 2023. doi:10.1001/jamacardio.2023.2731

Summarised from the published abstract; every number is checked against it

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