CVD risk factors
PART 1: COMPREHENSIVE CVD RISK ASSESSMENT
Section 1: Core Organs and Systems Assessed in a Full CVD Assessment
A comprehensive cardiovascular disease (CVD) assessment evaluates the impact of vascular disease on multiple organ systems and identifies modifiable risk factors.
Organ/System | Why It Is Assessed | Key Methods |
|---|---|---|
Heart | Primary site of disease. Assess for coronary artery disease (angina, MI), heart failure, arrhythmias (e.g., AF), valvular disease. | History (chest pain, dyspnoea, palpitations), ECG, echocardiography, cardiac biomarkers (if acute). |
Blood Vessels (Arterial System) | Atherosclerosis is a systemic process. Assess for hypertension, peripheral arterial disease (PAD), carotid artery disease. | Blood pressure measurement, pulse examination, ankle–brachial pressure index (ABPI), carotid bruit assessment. |
Brain | CVD increases stroke and TIA risk. Assess for previous stroke or TIA, cognitive impairment related to vascular disease. | Neurological history and examination, brain imaging if indicated. |
Kidneys | Hypertension and diabetes damage renal vasculature. Assess for chronic kidney disease (CKD), albuminuria (marker of vascular damage). | eGFR, urine albumin-to-creatinine ratio (ACR). |
Eyes (Retina) | Microvascular damage reflects systemic disease. Assess for hypertensive retinopathy, diabetic retinopathy. | Fundoscopy, retinal screening (in diabetes). |
Endocrine/Metabolic System | Major modifiable CVD risk factors. Assess for diabetes mellitus, dyslipidaemia, obesity and metabolic syndrome. | HbA1c or fasting glucose, lipid profile, BMI and waist circumference. |
Liver | Metabolic risk and medication safety. Assess for non-alcoholic fatty liver disease (NAFLD); statin safety baseline. | Liver function tests (LFTs). |
Thyroid | Thyroid dysfunction can influence CVD risk. | Thyroid function tests (TFTs). |
PART 2: OBESITY – CLASSIFICATION, MANAGEMENT, AND PHARMACOTHERAPY
Section 2: National Priorities and Obesity Classification
2.1. Overweight and Obesity Classification (BMI):
The International Classification of adult underweight, overweight, and obesity according to BMI:
Category | BMI (kg/m²) |
|---|---|
Underweight | < 18.5 |
Normal weight | 18.5 – 24.9 |
Overweight | 25.0 – 29.9 |
Obese | ≥ 30.0 |
2.2. Waist-to-Height Ratio:
An alternative or complementary measure to BMI, reflecting central adiposity, which is a key driver of metabolic risk.
Section 3: Non-Pharmacological Management of Obesity
3.1. Nutrition and Energy Balance (Based on NICE Guidance):
Sustainable calorie deficit is the core driver of weight loss. How it is achieved should be personalised.
Use structured approaches: portion control, meal planning, reducing high-energy snacks/drinks.
Aim for a balanced dietary pattern: vegetables, whole grains, lean proteins; limit alcohol and sugary drinks.
Plan for weight maintenance early: as weight drops, energy needs fall – relapse prevention is crucial.
3.2. Physical Activity and Function – Practical Messages for Patients:
Start where the person is: any increase in activity helps (walking, stairs, swimming, cycling).
For maintaining weight loss, NHS advice highlights the value of higher activity levels (often up to ~60 minutes/day).
Include strength/resistance activities to protect muscle mass during weight loss.
Reduce sitting time: short movement breaks can be easier than "gym" goals.
3.3. Behaviour Change Support – Evidence-Based Ingredients:
Set 1–2 specific, measurable goals (e.g., steps/day, sugary drinks/week).
Self-monitoring: weight trend, food patterns, triggers, sleep, mood.
Problem-solving barriers: shift work, stress eating, cost, social situations.
Motivational interviewing style: explore ambivalence; build confidence.
3.4. NHS Digital Weight Management Programme:
A 12-week online behavioural & lifestyle programme for adults living with obesity who also have diabetes, hypertension, or both.
Supports behaviour change alongside routine care.
Accessible via smartphone/computer; referral routes vary.
Best used as part of a wider plan (diet + activity + follow‑up).
Section 4: Escalation Pathway for Weight Management (Tiers of Care)
Based on NICE guidance, weight management services are structured in tiers:
Tier | Description | Interventions |
|---|---|---|
Tier 1: Universal support | Population-level interventions. | Brief advice, self-care resources. |
Tier 2: Lifestyle programmes | Structured community-based programmes. | Structured diet/activity, group/online support. |
Tier 3: Specialist weight management service | Multidisciplinary specialist team. | MDT support (dietitian, psychology, physical activity, medical review). Consider medicines. |
Tier 4: Bariatric surgery | Surgical intervention for selected patients. | Surgery for severe obesity when criteria met and benefits outweigh risks. Long-term follow-up essential. |
Medicines are an adjunct to lifestyle support – not a substitute.
Follow‑up is essential for maintaining weight loss and managing adverse effects/comorbidities.
Section 5: Obesity Pharmacotherapy – GLP-1 Receptor Agonists
5.1. Liraglutide (Saxenda®) – At a Glance:
Aspect | Details |
|---|---|
Indication | Weight management in adults with obesity. Supports weight loss and reduces obesity-related risks. |
Mechanism | GLP-1 receptor agonist. Acts on the brain to: reduce hunger, increase satiety. Helps patients eat less. Supports sustained weight loss with lifestyle changes. |
Eligibility (NICE) | • BMI ≥35 kg/m² with obesity-related conditions. |
Common Side Effects | Nausea, vomiting, diarrhoea. |
Advice for Patients | Eat slowly, avoid large or fatty meals initially. Report severe abdominal pain (rule out pancreatitis). |
Serious Side Effects (Rare but Important) | • Pancreatitis: Severe, continuous stomach pain; pain spreading to back; nausea/vomiting. |
Action for Serious Effects | Stop treatment and seek urgent medical attention if severe abdominal pain occurs. Report neck swelling or voice changes promptly. |
5.2. Semaglutide (Wegovy®) – At a Glance:
Aspect | Details |
|---|---|
Indication | Weight management in adults with obesity. Obesity is a long-term condition that increases risk of: type 2 diabetes, heart disease, stroke. |
Mechanism | GLP-1 receptor agonist. Reduces appetite, increases feeling of fullness, slows stomach emptying. Helps reduce body weight. Supports long-term weight loss when combined with healthy diet and increased physical activity. |
Eligibility (NICE) | • BMI ≥35 kg/m² with at least one weight-related condition (e.g., type 2 diabetes, hypertension). |
How to Use | Once-weekly injection under the skin. Dose increased gradually to reduce side effects. Weight loss is gradual over weeks to months. |
Common Side Effects | Nausea, vomiting, diarrhoea, constipation. |
Advice for Patients | Eat smaller meals, stop eating when full. Seek advice if vomiting is severe or persistent. |
Missed Doses | If missed within 5 days, take as soon as remembered. If more than 5 days, skip and take next dose as normal. Do not double doses. |
Duration & Other Advice | Used long-term, reviewed regularly. Must continue dietary and lifestyle changes. Store in the fridge (before use). |
5.3. Tirzepatide (Mounjaro®) – At a Glance:
Aspect | Details |
|---|---|
Indication | Weight management and type 2 diabetes. Helps manage obesity and related metabolic conditions. |
Mechanism | Acts on GIP and GLP-1 receptors (dual agonist). Results in: reduced appetite, increased fullness, improved glucose control. |
Treatment Benefits | Significant weight reduction, improves metabolic health, may reduce risk of diabetes complications. |
Eligibility (NICE) | BMI ≥35 kg/m² with obesity-related conditions. Used within specialist weight-management services. Must be combined with diet and lifestyle support. |
How to Use | Once-weekly injection. Dose increased gradually. Weight loss occurs over months. |
Common Side Effects | Nausea, diarrhoea, reduced appetite. |
Advice for Patients | Eat smaller meals, stay hydrated. Seek medical advice for severe symptoms. |
Missed Doses | Take within 4 days if remembered. Otherwise skip and continue as normal. |
Duration & Other Advice | Long-term treatment with regular review. Continue lifestyle changes. Store in fridge. |
Warnings | Vigilance required due to potentially harmful falsified products. |
5.4. Other Important Considerations for GLP-1 Agonists:
Professional and ethical responsibilities (GPhC):
Prescribers should independently verify key data (e.g., weight/height/BMI) – not questionnaire-only.
Document assessment, counselling, and follow-up plan.
MHRA licensing and safety considerations:
Tirzepatide may reduce effectiveness of oral contraception in some cases → consider non‑oral/barrier methods for a period after starting or dose increases.
Discuss fertility changes with weight loss (unplanned pregnancy risk).
PART 3: HYPERTENSION OVERVIEW
Section 6: Hypertension in Context of NHS Health Check and General Practice
High blood pressure is one of the major contributors to CVD. By raising awareness, improving detection, monitoring, and treatment, pharmacists can make a significant healthcare impact.
Good blood pressure control is also linked to increasing life expectancy and improved quality of life for people with diabetes.
6.1. Definition of Hypertension:
Hypertension is persistently raised:
Systolic blood pressure ≥140 mmHg, or
Diastolic blood pressure ≥90 mmHg, or both (in those without diabetes).
6.2. Hypertension Case-Finding Service – Diagnosis:
Confirm diagnosis of hypertension in people with a:
Clinic blood pressure of 140/90 mmHg or higher AND
ABPM (Ambulatory Blood Pressure Monitoring) daytime average or HBPM (Home Blood Pressure Monitoring) average of 135/85 mmHg or higher.
6.3. Diagnostic Requirements:
Method | Requirements |
|---|---|
ABPM | Ensure at least two measurements per hour during the person's usual waking hours. Use the average value of at least 14 measurements taken during waking hours to confirm diagnosis. |
HBPM | Twice daily for 4 days minimum, optimal 7 days. Each reading repeated twice, 1 minute apart. |
Make sure to differentiate stage 1 and stage 2 hypertension to decide treatment.
6.4. Lifestyle Advice for Hypertension:
Reduce salt consumption or use a salt substitute (dietary sodium intake <100 mmol/day = <2.4 g dietary sodium or <6 g sodium chloride).
Moderate consumption of coffee and other products with a high content of caffeine.
Diet, exercise, weight loss, alcohol moderation, smoking cessation, and relaxation techniques.
Section 7: Hypertension as Part of CVD Risk Assessment
For all people with hypertension, offer to:
Test for the presence of protein in the urine by sending a urine sample for estimation of the albumin:creatinine ratio (ACR) and test for haematuria using a reagent strip.
Take a blood sample to measure glycated haemoglobin (HbA1c), electrolytes, creatinine, estimated glomerular filtration rate (eGFR), total cholesterol, and HDL cholesterol.
Examine the fundi for the presence of hypertensive retinopathy.
Arrange for a 12-lead electrocardiograph (ECG) to be performed.
Section 8: Blood Pressure Targets in Diabetes
Patient Group | Target Clinic BP |
|---|---|
Type 1 diabetes, under 80 years | • If ACR <70 mg/mmol: below 140/90 mmHg |
Type 1 diabetes, aged 80 years or over | below 150/90 mmHg (regardless of ACR) |
Type 2 diabetes (all ages) | • Under 80 years: below 140/90 mmHg |
Monitor blood pressure every 1–2 months.
PART 4: CARDIOVASCULAR RISK ASSESSMENT AND PREVENTION
Section 9: Cardiovascular Risk Assessment
It is essential to calculate the risk to initiate a prevention care pathway.
A variety of risk calculators are available: charts, tables, computer programs, and web-based tools.
9.1. How Do They Work?
Tools assess cardiovascular risk—coronary heart disease (angina and myocardial infarction), stroke, and transient ischaemic attack—on the basis of:
Lipid profile
Systolic blood pressure
Gender
Age
Ethnicity
Deprivation
Smoking status
BMI
Chronic kidney disease
Diabetes mellitus
Atrial fibrillation
Treated hypertension
Rheumatoid arthritis
Family history of premature cardiovascular disease
9.2. QRISK® Tool:
http://qrisk.org/– widely used in the UK for CVD risk estimation.
9.3. Cardiovascular Risk Estimation:
All adults from 40 years onwards, who have no history of CVD or diabetes, and who are not already on treatment for blood pressure or lipids, should be considered for an opportunistic comprehensive CVD risk assessment in primary care.
Section 10: Strategy for Prevention
10.1. Lifestyle Interventions:
Diet and exercise, alcohol moderation (covered in level 5).
Cardio-protective diet (Mediterranean diet).
10.2. Mediterranean Diet Adherence and Cardiovascular Risk – Key Evidence (PREDIMED Trial):
Study: Martínez-González MA et al., 2012. Large randomised controlled trial in Spain. Participants at high cardiovascular risk.
Compared:
Mediterranean diet + extra-virgin olive oil
Mediterranean diet + nuts
Low-fat control diet
Impact on CVD Risk:
~30% relative reduction in major cardiovascular events (myocardial infarction, stroke, cardiovascular death).
Benefit seen without calorie restriction or weight loss.
Greatest reduction observed in stroke risk.
Key Dietary Components:
High: fruit, vegetables, whole grains, legumes, fish, olive oil, nuts.
Low: red/processed meat, saturated fat, refined sugars.
Proposed Mechanisms:
Improved lipid profile (↓ LDL, improved HDL function).
Reduced inflammation and oxidative stress.
Improved endothelial function.
Clinical Relevance:
Strong evidence supporting dietary intervention in CVD prevention.
Complements pharmacological lipid-lowering therapy.
Reinforces NICE/NHS emphasis on lifestyle modification.
A modest improvement in MEDAS adherence (often ~2 points) is clinically meaningful and aligns with the ~30% reduction in major CVD events.
10.3. Physical Activity Recommendation:
(Refer to previous section on physical activity for obesity management.)
10.4. Smoking Cessation:
Anyone who is a smoker and wants to quit should be offered the support of a local NHS Stop Smoking Service.
A combination of long-acting NRT (transdermal patch) and short-acting NRT (lozenges, gum, sublingual tablets, inhalator, nasal spray, and oral spray) are the most effective treatment options and thus the preferred choices.
E-cigarettes are better than smoking – (check BNF).
10.5. Alcohol – Useful Resources:
Alcohol Use Disorders Identification Test for Consumption (AUDIT-C) .
Alcohol structured advice tool.
Section 11: Primary and Secondary Prevention with Statins
Prevention Type | Strategy |
|---|---|
Primary Prevention | All modifiable risk factors (smoking, diet, alcohol, obesity, physical activity, plus BP and HbA1c) should be addressed. Statin therapy considered based on QRISK score (typically ≥10% 10-year risk). |
Secondary Prevention | All modifiable risk factors should be addressed. A statin (recommended atorvastatin 80 mg) should be considered for all adults including the elderly, with cardiovascular disease such as those with coronary heart disease (including history of angina or acute myocardial infarction), occlusive arterial disease (including peripheral vascular disease, non-haemorrhagic stroke, or transient ischaemic attacks). |
11.1. Lipid Targets and Monitoring Strategy:
Timing | Monitoring |
|---|---|
Baseline monitoring before starting statin | Lipid profile, liver function tests (LFTs), HbA1c, TSH (if indicated). |
Monitoring after statin initiation | • 3 months: lipid profile, LFTs. |
Revise this lecture in conjunction with the lipid modification lecture.
SUMMARY TABLES
Table 1: Comparison of GLP-1 Agonists for Weight Management
Drug | Mechanism | Dosing | Eligibility (NICE) | Key Side Effects |
|---|---|---|---|---|
Liraglutide (Saxenda®) | GLP-1 agonist | Daily injection | BMI ≥35 + comorbidity; or BMI 30-34.9 in specialist | Nausea, vomiting, diarrhoea; risk of pancreatitis, gallstones |
Semaglutide (Wegovy®) | GLP-1 agonist | Weekly injection | BMI ≥35 + comorbidity; or BMI 30-34.9 in specialist | Nausea, vomiting, diarrhoea, constipation |
Tirzepatide (Mounjaro®) | GIP/GLP-1 dual agonist | Weekly injection | BMI ≥35 + comorbidity (specialist) | Nausea, diarrhoea, reduced appetite; may reduce OC effectiveness |
Table 2: Hypertension Targets by Patient Group
Patient Group | Target Clinic BP |
|---|---|
General population (no diabetes) | <140/90 mmHg |
Type 2 diabetes (any age, under 80) | <140/90 mmHg |
Type 2 diabetes (80+) | <150/90 mmHg |
Type 1 diabetes (under 80, ACR <70) | <140/90 mmHg |
Type 1 diabetes (under 80, ACR ≥70) | <130/80 mmHg |
Type 1 diabetes (80+) | <150/90 mmHg |
Table 3: Mediterranean Diet – Key Components
Food Group | Recommendation |
|---|---|
High Intake | Fruits, vegetables, whole grains, legumes, fish, olive oil (extra virgin), nuts |
Low Intake | Red meat, processed meat, saturated fat, refined sugars |