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2021 ESC Cardiovascular Disease Prevention Guidelines

Clinical Quick Reference — Prevention of CVD in Clinical Practice

Published: European Heart Journal (2021) 42, 3227–3337
Developed by: ESC Task Force for CVD Prevention
Endorsed by: EAPC, EAS, EHN, ESH, EURO-ASPIRE, and 7+ medical societies
DOI: 10.1093/eurheartj/ehab484
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What's New in 2021

The 2021 ESC guidelines on cardiovascular disease prevention introduce significant updates emphasizing risk stratification using SCORE2, intensive stepwise treatment approaches, and integration of lifestyle and psychosocial factors into CVD prevention strategies. These recommendations reflect current evidence and aim to reduce CVD burden through personalized, patient-centered care.

Major New Class I Recommendations

Updated Class IIa Recommendations (Should be Considered)

Cardiovascular Risk Assessment

SCORE2 and SCORE2-OP Risk Estimation

SCORE2 (Age <70): Estimates 10-year fatal and nonfatal CVD events (myocardial infarction, stroke) using age, sex, systolic BP, non-HDL-C, and smoking status. Calibrated to four risk clusters of European countries (low, moderate, high, very high mortality).

SCORE2-OP (Age ≥70): Modified algorithm adjusting for age-related CV risk relationships and competing non-CV mortality. Distinguishes lifetime benefit strategies in older populations.

CVD Risk Categories and Treatment Targets

Risk Category SCORE2 Risk Threshold LDL-C Goal SBP Goal Primary Strategy
Low-to-Moderate <5% (age 50-69) <3.0 mmol/L (116 mg/dL) <130 mmHg Lifestyle; statin if indicated
High 5-10% (age 50-69) <1.8 mmol/L (70 mg/dL) <130 mmHg Statin ± ezetimibe
Very High ≥10% (age 50-69) <1.4 mmol/L (55 mg/dL), ≥50% reduction <130 mmHg Intensive: statin + ezetimibe ± PCSK9i
Established ASCVD Very High (residual risk) <1.4 mmol/L (55 mg/dL), ≥50% reduction <130 mmHg if tolerated Intensive lipid & BP lowering

Lifetime CVD Risk and Risk Modifiers

Lifetime risk assessments communicate long-term prevention benefits to patients and guide treatment intensification in younger individuals. Consider these risk modifiers:

Special Populations

Sex and Gender Differences

Women <50 years and men <40 years have low 10-year CVD risk but may harbor high lifetime risk or unfavorable modifiable risk factors. Sex-specific considerations include:

  • Pregnancy complications (preeclampsia, gestational diabetes, stillbirth) as CVD risk markers
  • Migraine with aura associated with stroke risk; avoid combined hormonal contraceptives
  • Erectile dysfunction as CVD risk indicator in men
  • Hormonal therapy risk/benefit assessment

Type 2 Diabetes Mellitus

Most type 2 DM patients (especially with age >40 years or duration >10 years) are at high or very high CV risk. Intensive BP, lipid, and glucose control with cardioprotective agents (GLP-1RA, SGLT2i) are essential. Type 2 DM without overt ASCVD may be at very high risk if accompanied by severe TOD or multiple CV risk factors.

Chronic Kidney Disease (CKD)

CKD without diabetes or ASCVD: eGFR 30–44 mL/min/1.73m² or ACR ≥30 mg/mmol = high risk. Severe CKD (eGFR <30) or ACR >300 = very high risk. CKD with established ASCVD or DM = very high risk.

Familial Hypercholesterolaemia (FH)

Genetic LDL-C elevation (heterozygous FH ~0.25% population; homozygous ~0.02%) = high or very high risk depending on mutation type, LDL-C level, presence of ASCVD. Intensive lipid-lowering therapy with PCSK9i and/or combination agents required.

Lipid Management

LDL-Cholesterol Treatment Goals by Risk Category

Risk Category LDL-C Target (mmol/L / mg/dL) Non-HDL-C Target Key Drug Strategy
Very High (Established ASCVD, recent ACS/CVA) <1.4 / 55 with ≥50% reduction <1.8 mmol/L (70 mg/dL) High-dose statin + ezetimibe ± PCSK9i
High (ASCVD risk ≥10%) <1.8 / 70 <2.2 mmol/L (85 mg/dL) High-dose statin + ezetimibe if needed
Moderate (ASCVD risk 5-10%) <2.6 / 100 <3.3 mmol/L (130 mg/dL) Statin; add ezetimibe if needed
Low-to-Moderate (<5% risk) <3.0 / 116 Consider by modifiers Lifestyle; statin if family history/modifiers

Lipid-Lowering Drug Algorithm

Step 1: Lifestyle Foundation

Mediterranean diet, weight management, physical activity, smoking cessation, alcohol limitation, stress reduction

Step 2: High-Intensity Statin Monotherapy

Atorvastatin 40–80 mg or rosuvastatin 20–40 mg daily. Expected LDL-C reduction 45–55%. Assess response at 4–12 weeks. For statin intolerance, consider alternative or reduced dose.

Step 3: Add Ezetimibe

Add ezetimibe 10 mg daily (cholesterol absorption inhibitor, 15–20% additional LDL-C reduction). Reassess at 4–12 weeks.

Step 4: PCSK9 Inhibitor or Alternative Agent

For very high/high-risk patients not achieving LDL-C targets: PCSK9i (evolocumab, alirocumab, bococizumab, inclisiran) reduces LDL-C additional 40–60%. Inclisiran (PCSK9i, administered twice yearly SC) newer approach. Bempedoic acid (alternative for statin intolerance). Ezetimibe monotherapy if statin/PCSK9i intolerant.

Statin Selection & Adverse Effects

Best Practices

  • Assess statin intensity needed based on risk category and baseline LDL-C
  • Screen for muscle symptoms (myalgia, myositis, rhabdomyolysis); most myalgia is non-statin related
  • Monitor liver function (LFTs) and muscle symptoms at baseline, 4–12 weeks, and annually
  • Reinforce adherence; assess at each visit using pill counts, pharmacy refill data
  • Monitor LDL-C reduction: check at 4–12 weeks after initiation/adjustment, then every 12 months when stable
  • Incorporate ezetimibe and PCSK9i sequentially if LDL-C target not achieved

Avoid

  • Delaying statin therapy in high/very high-risk patients; initiate promptly + lifestyle modifications
  • Discontinuing statin for minor muscle aches without investigation; consider alternative statin or dose adjustment
  • Recommending routine liver/muscle monitoring in asymptomatic statin users unless baseline abnormalities present
  • Using combination fixed-dose therapies unless adherence issue identified (increases cost)
  • Fearing "too low" LDL-C; no evidence of harm at LDL-C <1.4 mmol/L; cardiovascular benefits outweigh risks

Special Lipid Considerations

Blood Pressure Management

BP Classification and Treatment Indications

BP Category SBP / DBP (mmHg) Recommended Action
Optimal <120/<80 Lifestyle counseling; repeat periodically
Normal 120-129/<80 Lifestyle counseling; assess every 3-5 years
High-Normal 130-139/80-89 Intensive lifestyle intervention; repeat measurement in weeks
Grade 1 Hypertension 140-159/90-99 Pharmacotherapy (after 3-6 months lifestyle trial if low CV risk)
Grade 2 Hypertension 160-179/100-109 Immediate pharmacotherapy + lifestyle
Grade 3 Hypertension ≥180/≥110 Urgent pharmacotherapy; consider emergency referral

Treatment Targets

Class I Primary objective: Lower BP to <140/90 mmHg in all patients. Subsequent targets tailored to age and conditions:

  • Ages 18–69 years: Target SBP 120–130 mmHg if tolerated (Class I)
  • Ages ≥70 years: Target SBP <140 and down to 130 mmHg if tolerated (Class I)
  • All treated patients: Target DBP <80 mmHg (Class I)
  • Patients with ASCVD or high CVD risk: More intensive BP lowering associated with greater CV benefit; consider <130/80 target

Pharmacological Approaches

First-line antihypertensive agents (no single superior class):

Combination strategies: Most patients require 2–3 agents. Dual and triple fixed-dose combinations improve adherence. Start with low-dose combination therapy in moderate-to-severe hypertension.

Screening & Measurement

Lifestyle Interventions & Risk Factor Modification

Physical Activity

Class I Recommendation: 150–300 minutes per week of moderate-intensity aerobic activity (or 75–150 minutes vigorous), or equivalent combination. Resistance exercise 2 days per week.

Key Benefits: Reduces SBP by 5–7 mmHg, improves HDL-C, reduces TG, enhances insulin sensitivity, facilitates weight loss, reduces all-cause and CV mortality by ~30%. Even small amounts of activity reduce mortality risk.

Sedentary Time Reduction (Class IIa): Limit sitting; engage in light activity throughout day to reduce all-cause and CV mortality independent of formal exercise.

Nutrition & Diet

Recommended Dietary Approaches

  • Mediterranean Diet (Class I): Adopt to lower CVD risk. Emphasis on olive oil, vegetables, fruits, whole grains, legumes, nuts, fish. Evidence from PREDIMED trial shows 30% CV event reduction.
  • Vegetables & Fruits: Target 5+ servings daily; rich in fiber, antioxidants, minerals
  • Whole Grains: Replace refined carbohydrates; reduce refined sugar intake
  • Fish & Fatty Acids (Class I): Consume fatty fish (salmon, mackerel, sardines) weekly for omega-3 content; restrict processed meat
  • Nuts: Consume regularly (~25g or 1 ounce, 3–4 times weekly); associated with reduced CVD risk
  • Legumes & Beans: Excellent sources of plant-based protein and fiber

Avoid

  • Sugar-sweetened beverages and soft drinks; associated with obesity, diabetes, CVD
  • Excessive sodium (<5g/day, ~1 teaspoon); high sodium increases BP and CV risk
  • Processed and ultra-processed foods high in sodium, trans fats, refined carbs
  • Alcohol: Limit to ≤100g/week (14 units); excessive intake increases BP, TG, CV mortality
  • Saturated fats and trans fats; replace with unsaturated oils

Weight Management

Class I Maintenance of healthy body weight (BMI 18.5–24.9 kg/m²) fundamental for CV health. Weight loss of 5–10% in overweight/obese individuals reduces CV risk factors (BP, lipids, glucose) and mortality.

Smoking Intervention & Cessation

Evidence & Rationale

Class I Smoking cessation is strongly recommended for all smokers, regardless of weight gain; CV benefits outweigh any modest weight gain risk. Smoking accounts for ~50% of CVD deaths in smokers (~10% of all premature CVD mortality globally). CV risk in smokers is 5–7 times higher than non-smokers <50 years age. Even low-intensity passive smoking increases CV risk by ~30%. Risk persists ~8–10 years after cessation.

Cessation Strategies

Behavioral Support

Individual or group counseling, cognitive-behavioral therapy (CBT), motivational interviewing, telephone quitlines. Structured programs enhance success rates to ~15–30%.

Pharmacological Interventions (Class I)

  • Varenicline (Champix/Chantix): Partial nicotinic acetylcholine agonist. Dosing: 0.5 mg days 1–3, 0.5 mg BID days 4–7, 1 mg BID days 8–84. Most effective; 12-week quit rates ~35%. SE: nausea, vivid dreams, mood/psychiatric changes (monitor).
  • Bupropion (Zyban/Wellbutrin): Antidepressant; dopamine/norepinephrine reuptake inhibitor. Dosing: 150 mg daily × 6 days, then 150 mg BID × 7–12 weeks. Also helps depression. 12-week quit rates ~30%. SE: seizure risk (0.4%, avoid in seizure disorders), insomnia, headache.
  • Nicotine Replacement Therapy (NRT): Patches (7–21 mg/day), gum (2–4 mg), lozenges, nasal spray, inhalers. Can combine forms (patch + gum for higher nicotine). 12-week quit rates ~18%. SE: local irritation, insomnia (with patch), hiccups (gum).
  • Combination Therapy: Varenicline + NRT or bupropion + NRT superior to monotherapy in some patients; increased quit rates to ~40–45%.

Electronic Cigarettes & Heat-Not-Burn Products

E-cigarettes and IQOS (heat-not-burn tobacco) may reduce harm vs. combustible cigarettes but are not risk-free. Nicotine dependence maintained; long-term CV safety unknown. Not recommended first-line; consider if traditional methods fail and patient motivated to switch.

Clinical Best Practices

  • Ask about smoking at every visit; provide cessation advice universally
  • Assess readiness to quit and motivation using 5R framework (Relevance, Risks, Rewards, Roadblocks, Repetition)
  • Set a quit date within 1–2 weeks of initiating pharmacotherapy
  • Combine behavioral + pharmacological support for best outcomes
  • Provide ongoing support (follow-up calls/visits at 3–7 days, 2 weeks, 1 month)
  • Manage relapse: most successful quitters try multiple times; retreatment encouraged

Diabetes Prevention & Type 2 DM Management

Type 2 Diabetes Prevention (Prediabetes)

Class I In persons at risk for type 2 DM (fasting glucose 100–125 mg/dL, 2-hour glucose 140–199 mg/dL post-OGTT, or HbA1c 39–47 mmol/mol):

  • Lifestyle modifications: Weight loss 5–10%, increased physical activity (150 min/week), Mediterranean diet. Diabetes Prevention Program trial showed 58% reduction in DM incidence over 3 years.
  • Metformin: 500–1000 mg daily for individuals unable to achieve/maintain lifestyle changes or with high-risk features. Reduces DM incidence by ~31%; additional CV and mortality benefits. SE: GI upset, vitamin B12 deficiency (rare, monitor).

Type 2 DM with Established ASCVD or High CV Risk

Class I Most type 2 DM patients are at high or very high CV risk. Intensive management of CV risk factors is paramount:

Type 1 & Type 2 DM Special Considerations

Antithrombotic Therapy

Aspirin in Primary Prevention

Class IIb Aspirin has a limited role in primary prevention. Bleeding risk (major bleed ~1–2% annually) often outweighs CV benefit in apparently healthy low-risk individuals. Benefit-risk neutral or unfavorable in low-risk populations. Only consider very high-risk primary prevention (e.g., SCORE2 ≥7.5%) with absence of bleeding contraindications and informed patient consent.

Aspirin in Secondary Prevention

Class I For established ASCVD (CAD, prior MI, stroke/TIA, PAD), aspirin (75–100 mg daily) is a cornerstone of secondary prevention. Reduces recurrent events by ~25% relative to placebo. Absolute benefit outweighs bleeding risk in secondary prevention context.

Dual Antiplatelet Therapy (DAPT)

Class I Following acute coronary syndrome or percutaneous coronary intervention (PCI) with stent:

Anticoagulation

For atrial fibrillation, mechanical heart valves, or VTE: direct oral anticoagulants (DOACs) or warfarin (INR 2–3) indicated based on condition. Combination aspirin + anticoagulation for specific indications (e.g., AF + acute MI) increases bleeding; weigh benefit-risk.

Psychosocial Factors & Mental Health

Depression & Mental Health Disorders

Class I Mental disorders with significant functional impairment or decreased use of healthcare systems are considered as influencing CVD risk factors. Major depression increases CVD incidence by 1.5–2 fold and is associated with 2–3 fold increased CV mortality post-ACS and in HF.

Clinical Approach:

Psychosocial Stress & Stress Management

Class IIa ASCVD patients with chronic stress should be referred to psychotherapeutic stress management programs to improve CV outcomes and reduce stress symptoms. Techniques include:

Social Support & Isolation

Prevention in Disease-Specific Conditions

Chronic Kidney Disease (CKD)

Class I Patients with CKD are at high/very high CV risk due to shared risk factors (HTN, DM, dyslipidemia) and CKD-specific mechanisms (uremia, anemia, vascular calcification). Management priorities:

Atrial Fibrillation (AF)

Class I AF increases stroke risk ~5 fold; stroke prevention with anticoagulation (CHA₂DS₂-VASc score ≥1 men, ≥2 women) recommended using DOACs or warfarin (INR 2–3). Additional management:

Heart Failure (HF)

Class I Comprehensive cardiac rehabilitation (CR) program recommended for HF patients. CR includes exercise training, education, psychological support, improving outcomes, reducing hospitalizations. Guideline-directed medical therapy:

Cerebrovascular Disease (Stroke/TIA)

Class I Secondary stroke prevention includes:

Peripheral Artery Disease (PAD)

Class I Best medical therapy for secondary prevention:

Chronic Obstructive Pulmonary Disease (COPD)

COPD increases CVD risk by ~1.5–2 fold due to systemic inflammation, oxidative stress, and shared risk factors (smoking). Aggressive CV risk factor management essential: BP control, lipid management, smoking cessation, physical activity/pulmonary rehabilitation. COPD exacerbations increase CV events.

Autoimmune & Inflammatory Conditions (RA, SLE, Psoriasis)

Chronic inflammation and autoimmunity increase CVD risk independent of traditional risk factors. Management includes:

Cancer Survivorship

Cancer treatments (anthracyclines, radiation, tyrosine kinase inhibitors, immune checkpoint inhibitors) increase CV risk (cardiotoxicity, myocarditis, HTN, dyslipidemia). Management includes:

Clinical Do's & Don'ts at a Glance

Do

  • Perform systematic CVD risk assessment in all adults with major CV risk factors using SCORE2/SCORE2-OP
  • Initiate BP-lowering pharmacotherapy promptly in hypertensive patients; combine with lifestyle modifications
  • Use high-intensity statin therapy for high/very high-risk patients; initiate promptly without delaying for lifestyle changes alone
  • Add ezetimibe sequentially if LDL-C target not achieved on statin monotherapy within 4–12 weeks
  • Consider PCSK9i for secondary prevention at very high risk or high-risk not achieving LDL-C goals on statin + ezetimibe
  • Recommend Mediterranean diet and limit alcohol to ≤100g/week for all patients
  • Prescribe 150–300 min/week moderate-intensity aerobic activity and encourage resistance exercise 2x/week
  • Strongly recommend smoking cessation for all smokers; benefit outweighs weight gain risk
  • Counsel on weight management and target BMI 18.5–24.9 kg/m²; facilitate weight loss programs
  • Screen for depression/anxiety using validated tools (PHQ-9, GAD-7); refer for psychosocial support if indicated
  • Use shared decision-making; discuss treatment benefits, risks, lifetime prevention benefit with patients
  • Consider risk modifiers (lifetime risk, imaging, biomarkers) in borderline-risk patients
  • Enroll ASCVD patients in comprehensive cardiac rehabilitation programs
  • For type 2 DM with ASCVD/CKD, prescribe GLP-1RA or SGLT2i with proven CV/renal benefits (Class I)
  • Monitor medication adherence and lifestyle changes at follow-up visits; reinforce at each encounter

Don't

  • Delay statin initiation in high/very high-risk patients awaiting lifestyle changes alone
  • Recommend aspirin for primary prevention in low-to-moderate-risk individuals (limited benefit, bleeding risk)
  • Discontinue statin abruptly due to minor muscle aches; investigate further, consider alternative statin or dose adjustment
  • Routinely screen asymptomatic low-risk individuals with advanced imaging (CAC, carotid ultrasound)
  • Delay BP treatment in hypertensive patients; combine pharmacotherapy with intensive lifestyle modifications
  • Prescribe antiarrhythmics for rate control in AF without clear symptom-driven indication; beta-blockers, CCBs preferred
  • Initiate triple antithrombotic therapy (aspirin + DAPT) without specific indication; increases bleeding risk substantially
  • Discourage very low LDL-C targets in very high-risk patients; LDL-C <1.4 mmol/L safe and beneficial
  • Overlook comorbidities (depression, CKD, COPD, AF) that modify CV risk and require targeted interventions
  • Neglect lifestyle modifications; they are foundational and complement pharmacotherapy
  • Start medication without assessing barriers to adherence; address cost, complexity, side effects proactively

CVD Risk Calculators & Assessment Tools

Interactive online and mobile calculators enable clinicians and patients to estimate 10-year and lifetime CVD risk, explore treatment benefits, and facilitate shared decision-making. The following calculators are available and recommended:

SCORE2 Risk Calculator

Estimates 10-year fatal and nonfatal CVD events (MI, stroke) in apparently healthy people <70 years using age, sex, systolic BP, non-HDL-C, smoking status. Calibrated to four European risk clusters.

SCORE2-OP (Ages ≥70)

Adapts SCORE2 for elderly, accounting for age-specific CV risk relationships and competing non-CV mortality. Helps distinguish lifetime prevention benefit strategies in older populations.

ASCVD Risk Calculator (U.S.)

Pooled cohort equations estimating 10-year and lifetime atherosclerotic CVD risk using U.S. population data (FRAMINGHAM, ARIC cohorts). Includes coronary heart disease and stroke.

PREVENT Calculator

U.S.-based risk calculator estimating probability of first ASCVD event by age 75 and 85, facilitating lifetime risk and benefit communication.

Lifetime ASCVD Risk

Estimates remaining lifetime risk (to age 79 or 90) of first ASCVD event based on current profile and treatment assumptions. Facilitates long-term prevention counseling.

Framingham Risk Score

Classic 10-year risk of hard coronary heart disease (MI, CHD death) using Framingham Offspring Study data. Provides both CHD and general CVD risk estimates.

LDL-C Reduction Calculator

Estimates expected LDL-C reduction from high-dose statin, ezetimibe, PCSK9 inhibitors, bempedoic acid, inclisiran. Assists in treatment sequencing and goal achievement planning.

Lp(a)-ASCVD Risk Calculator

Quantifies impact of elevated lipoprotein(a) on ASCVD risk. Identifies very high-risk individuals for intensive treatment and risk communication.

eGFR Calculator (Adult)

Estimates glomerular filtration rate using CKD-EPI equation from serum creatinine, age, sex, ethnicity. Determines CKD stage and guides medication dosing.

Creatinine Clearance (Cockcroft–Gault)

Estimates creatinine clearance for medication dosing and renal function assessment. Useful for renally-eliminated drugs and CKD-specific therapy selection.

MESA CVD Risk Score

Estimates 10-year CVD risk incorporating traditional risk factors and coronary artery calcium score. Useful for subclinical atherosclerosis assessment and refining risk stratification.