New study detects silent atherosclerosis in healthy young adults

Atherosclerosis, the method underlying most cardiovascular ailments, begins lengthy earlier than the primary signs seem. A global examine led by Professor Henning Bundgaard, Professor of Cardiology at Rigshospitalet in Copenhagen, Denmark, and Dr Borja Ibáñez, Scientific Director of the Centro Nacional de Investigaciones Cardiovasculares Carlos III, CNIC, heart specialist at Hospital Universitario Fundación Jiménez Díaz and a gaggle chief at CIBERCV, exhibits that the illness can already be detected in apparently wholesome younger adults and is far more widespread than beforehand thought.

The outcomes, offered as we speak in a Scorching Line session at ESC Congress 2026 and printed concurrently in The New England Journal of Drugs, present that 57.1% of the greater than 16,000 members included within the examine had atherosclerotic plaques, regardless of having no signs or earlier diagnosis of heart problems.

The information come from the primary part of REACT, one of many largest research performed thus far to map the presence of silent atherosclerosis all through grownup life. REACT is a world initiative funded by the Novo Nordisk Basis and developed by collaboration between Rigshospitalet and different Danish hospitals and CNIC in Spain. Professor Bundgaard explains that “the imaginative and prescient of REACT is to remodel main cardiovascular prevention by a precision medication method primarily based on the early identification of atherosclerosis”.

The Novo Nordisk Basis granted as much as EUR 23 million to help the primary part of the initiative.

Atherosclerosis is the primary reason behind heart problems and usually presents as coronary heart assaults, strokes or sudden demise. Whereas not all people with atherosclerotic plaques will develop symptomatic illness, practically 20 million individuals worldwide die from heart problems yearly, and most of those deaths are brought on by atherosclerosis. Nonetheless, atherosclerosis can stay silent for many years whereas plaques progressively develop within the arteries.

Professor Ibáñez said that “the REACT examine is predicated on a easy however revolutionary concept: transferring from the present mannequin, which estimates the likelihood of heart problems on the premise of conventional danger elements comparable to blood strain, ldl cholesterol and smoking, in the direction of a brand new paradigm through which the illness is detected straight by imaging earlier than it causes signs. On this mannequin, preventive interventions and the therapy of danger elements might be guided by the precise presence of silent atherosclerosis somewhat than relying solely on an oblique estimate of danger. Step one on this bold endeavour was to find out the precise prevalence of silent atherosclerosis in all three main vascular territories and throughout your complete grownup lifespan, one thing that we’re reporting now“.

REACT is anticipated to run for eight years throughout two phases. Part 1 (REACT-DETECT) started in 2024 and, if granted, Part 2 (REACT-PROTECT) will run from 2027 to 2032. The current findings come up from Phase1, which represents essentially the most full atlas of the presence of silent atherosclerosis in several areas of the physique at completely different ages, each in ladies and men.

Atherosclerosis detected in younger adults

Within the first part, 16,808 individuals aged 18 to 70 had been recruited in Denmark and Spain. Not one of the members had a recognized historical past of atherosclerotic heart problems. Every participant underwent superior imaging to detect atherosclerotic plaques within the carotid, femoral and coronary arteries. Cardiovascular danger elements, blood biomarkers, samples for omics research and retinal photos had been additionally analysed, producing one of the complete databases on atherosclerosis developed thus far.

The outcomes present that the illness is already current in very younger adults. Roughly 1 in 13 individuals aged 18 to 29 years had atherosclerosis in at the least one artery. This proportion elevated progressively with age, reaching 9 in 10 individuals aged 60 to 70 years.

An essential discovering was that the majority people with atherosclerosis within the coronary arteries additionally had the illness within the arteries of the neck or legs, particularly the carotid or femoral arteries. This has essential implications for screening as a result of analyzing the carotid and femoral arteries utilizing ultrasound is less complicated, quicker and non-invasive in comparison with CT scannings.

Within the paradigm we suggest, transportable ultrasound units usable by any healthcare skilled will turn into the usual instrument for atherosclerosis screening from the early levels of grownup life.”

Dr Borja Ibáñez, Scientific Director, Centro Nacional de Investigaciones Cardiovasculares Carlos III, CNIC

Variations between ladies and men

The examine additionally reveals essential variations between ladies and men. In males, prevalence started to extend at youthful ages, with an atherosclerotic profile 5 to 10 years forward of that noticed in girls.

In girls, the sharpest enhance was noticed between the ages of 40 and 60, a interval that broadly coincides with the menopausal transition. These findings spotlight the significance of learning preventive methods tailored to intercourse and stage of life.

One other of the examine’s most related findings is that the traditional strategies at present used to estimate cardiovascular danger, together with danger scores comparable to SCORE2, determine solely a small proportion of people that have already got silent atherosclerosis.

In keeping with Dr Ibáñez, the outcomes underline the necessity to transfer in the direction of a brand new method to cardiovascular prevention.

“For many years, we have now estimated cardiovascular danger utilizing elements comparable to age, blood strain and ldl cholesterol. This examine exhibits that we will now go one step additional and detect the illness straight earlier than it causes a coronary heart assault or stroke.”

He added: “The way forward for cardiovascular prevention have to be extra exact and personalised. If we determine atherosclerosis in its earliest levels, we will intervene sooner, tailor therapy extra successfully and scale back the burden of heart problems.”

Professor Bundgaard believes the outcomes symbolize a novel alternative to remodel cardiovascular prevention.

“Till now, preventive selections have been primarily based on an estimate of danger, however we didn’t know whether or not the illness was already current. REACT exhibits that atherosclerosis will be detected many years earlier than medical manifestations seem and supplies essentially the most complete atlas of the evolution of the illness throughout grownup life.”

Professor Bundgaard added that the outcomes present the scientific basis wanted to judge a brand new preventive mannequin.

“Figuring out and treating silent atherosclerosis as early as potential is crucial to decreasing the worldwide burden of heart problems. Our outcomes help potential research evaluating whether or not a preventive technique guided by imaging, together with the usage of transportable ultrasound, can enhance present requirements. If confirmed, this may carry precision medication to the most typical heart problems.”

If funded, the second part of REACT, deliberate for 2027 to 2032, will take the analysis one step additional. The investigators will launch a big randomised medical trial to judge whether or not an imaging-guided precision prevention technique can halt or scale back the systemic development of atherosclerosis – with the long-term view to markedly scale back coronary heart assaults, strokes and different cardiovascular occasions extra successfully than the present follow. The investigators are additionally increasing the scope of REACT past Europe. “REACT is increasing its impression around the globe. We now have established shut collaborations with India, Singapore, Tanzania and Mexico to validate these ends in populations throughout the globe,” Dr Ibáñez stated.

REACT expands on the PESA-CNIC-Santander examine, led by Dr Valentin Fuster, Director Common of CNIC, who can also be straight concerned in REACT.

“PESA has proven us that atherosclerotic illness is current in lots of middle-aged individuals and is related to life-style patterns. In REACT, we wished to analyze the way it emerges at a lot youthful ages. For years, we have now proposed that early intervention in atherosclerosis couldn’t solely forestall its development however would possibly even make it potential to treatment the illness. REACT will reply this query,” Dr Fuster stated.