AHA 2023 · Cardiovascular-Kidney-Metabolic Syndrome
CKM syndrome staging framework
A staging system introduced by the American Heart Association in 2023 to classify individuals across the CKM disease continuum, emphasizing early identification and prevention before end-organ damage occurs.
No metabolic risk factors, CKD, or CVD present.
BMI <25 kg/m² (<23 for Asians)
Normal waist circumference
Women <88 cm, men <102 cm (Asian women <80 cm, Asian men <90 cm)
No metabolic abnormalities
[3, 4]
Adiposity or dysglycemia present, without other CKM risk factors.
BMI ≥25 kg/m² (≥23 for Asians)
Waist ≥88 cm women, ≥102 cm men
Asian thresholds: ≥80 cm women, ≥90 cm men
Dysglycemia / prediabetes: fasting glucose 100–124 mg/dL or HbA1c 5.7–6.4%
History of gestational diabetes
[3, 4, 5]
Metabolic disease or moderate-to-high-risk chronic kidney disease present.
Triglycerides ≥135 mg/dL
Hypertension
Diabetes mellitus
Moderate-to-high-risk CKD (KDIGO)
Metabolic syndrome (≥3 of the following):
Increased waist circumference
HDL-C <40 mg/dL (men) or <50 mg/dL (women)
Triglycerides ≥150 mg/dL
Blood pressure ≥130/80 mm Hg
Prediabetes (fasting glucose 100–124 mg/dL or HbA1c 5.7–6.4%)
[3, 4, 5]
Subclinical cardiovascular disease or predicted high risk, without clinical CVD events.
Very-high-risk CKD per KDIGO criteria
10-year CVD risk ≥20% using AHA PREVENT equations
[3, 4]
Established cardiovascular disease, particularly with persistent metabolic dysfunction or CKD.
Coronary heart disease
Myocardial infarction
Heart failure
Stroke
Angina
Occurring with persistent metabolic dysfunction and/or CKD
[3, 6]
Pathophysiology: CKM most commonly originates from excess or dysfunctional adipose tissue, which secretes proinflammatory and prooxidative products that damage arterial, cardiac, and kidney tissues — creating multidirectional relationships among metabolic risk factors, CKD, and the cardiovascular system. [1]
References
[1] Ndumele CE, Neeland IJ, Tuttle KR, et al. A Synopsis of the Evidence for the Science and Clinical Management of CKM Syndrome. Circulation. 2023;148(20):1636-1664.
[2] Ndumele CE, Rangaswami J, Chow SL, et al. Cardiovascular-Kidney-Metabolic Health: A Presidential Advisory From the AHA. Circulation. 2023;148(20):1606-1635.
[3] Zhu R, Wang R, He J, et al. Prevalence of CKM Syndrome Stages by Social Determinants of Health. JAMA Netw Open. 2024;7(11):e2445309.
[4] Chen Y, Wu X, Long T, et al. Prevalence and Mortality Association of Different Stages of CKM Syndrome. JACC Advances. 2025;4(6 Pt 2):101843.
[5] Khan SS, Berwanger O, Fiuzat M, et al. Prioritising the Primary Prevention of Heart Failure. Lancet. 2025;406(10508):1138-1153.
[6] Gunnarsson S, Vito O, Unwin RJ. CKM Syndrome: Prevalence, Risks, Disease Trajectories, and Early-Stage Management. Am J Physiol Cell Physiol. 2025.