The Study
Achieved LDL-C levels <55 mg/dL and cardiac events in patients and lesions harbouring lipid-rich plaque phenotypes
This study looked at people who already had heart disease and had special scans showing fatty buildup in their arteries. It found that those who got their bad cholesterol very low seemed to have fewer heart problems later. But the doctors decided who got stronger medicine — not the study — so we can't be sure the low cholesterol caused the better outcome.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
Doctors want to lower cholesterol to very low levels to prevent heart attacks. This study found that this only helps if your arteries have especially greasy, unstable plaques — not if they’re more stable.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 565 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — this suggests that not everyone benefits from ultra-low cholesterol; only those with specific high-risk plaque types do.
- 2In patients with greasy plaques (maxLCBI4mm ≥324.7), those with LDL-C < 55 mg/dL had 77% fewer heart attacks or need for revascularization.
- 3In patients without greasy plaques, lowering LDL-C made no difference.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
European Heart Journal Cardiovascular Imaging
Year
2026
Authors
Yu Kataoka, Stephen J. Nicholls, E. Kiyoshige, K. Nishimura, R. Puri, S. Kitahara, Kota Murai, Kentaro Mitsui, Y. Tomishima, K. Sawada, H. Matama, T. Iwai, S. Honda, K. Nakao, Masashi Fujino, Kensuke Takagi, S. Yoneda, F. Otsuka, K. Nishihira, I. Takamisawa, Y. Asaumi, T. Noguchi
Related Content
Claims (7)
Among patients with coronary artery disease and multiple lipid-rich plaque deposits, those who reduce their LDL cholesterol to below 55 mg/dL have a 78% lower rate of major adverse cardiac events compared to those who do not, but patients with only one such plaque deposit do not show this benefit.
In people with coronary artery disease, fatty plaques detected by a specific imaging test (NIRS with maxLCBI4mm ≥324.7) are associated with a 58% higher rate of serious heart events, even when cholesterol levels are accounted for.
In patients with coronary artery disease and fatty plaques in their arteries, lowering LDL cholesterol below 55 mg/dL is associated with fewer heart attacks, strokes, or deaths from heart disease compared to higher LDL levels.
For people with known heart disease, lowering LDL cholesterol to under 55 mg/dL reduces the chance of heart attacks, strokes, or death by 33% within three years, and does not increase the rate of side effects compared to higher LDL targets.
In patients with coronary artery disease and high-risk lipid-rich plaques, maintaining LDL cholesterol below 55 mg/dL while on treatment is associated with a 77% reduction in the occurrence of major cardiac events over approximately three years.
In patients with coronary artery disease, lowering LDL cholesterol below 55 mg/dL does not reduce the risk of serious heart events if they do not have lipid-rich plaques, and this benefit only occurs in those with this specific plaque type.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.