Summary of Public Health: Diseases and First Aid
Public Health: Diseases and First Aid - Student Guide
Introduction
Cardiovascular prevention is a set of measures aimed at reducing the risk of cardiovascular diseases, especially ischemic heart disease, stroke, and other cardiovascular events. The goal is to limit risk factors, detect elevated risk early, and maintain optimal health long-term.
Definition: Cardiovascular prevention includes primary and secondary interventions aimed at reducing the incidence and recurrence of cardiovascular diseases through lifestyle changes, medication, and regular medical care.
Categories of Prevention
Primary Prevention
This focuses on individuals who do not yet have overt cardiovascular disease, with the aim of preventing their first heart attack or stroke.
Secondary Prevention
This targets patients who have already experienced a cardiovascular event, to reduce the risk of recurrence and complications.
Definition: Primary prevention — measures taken before the onset of disease; secondary prevention — measures taken after an event to prevent recurrence.
Main Risk Factors
We divide them into modifiable (changeable) and non-modifiable.
Non-Modifiable
- Age
- Family history / genetics
- Sex
Modifiable
- Unhealthy diet
- Smoking
- Alcohol consumption
- Lack of physical activity
- Stress and poor sleep
Definition: Modifiable risk factors are those that can be changed through behavior or treatment; non-modifiable ones cannot be changed.
Table: Overview of Risk Factors and Example Interventions
| Risk Factor | Type | Example Interventions |
|---|---|---|
| Unhealthy diet | Modifiable | Reducing saturated fat intake, increasing fruit and vegetables |
| Smoking | Modifiable | Quitting smoking, nicotine replacement therapy, support programs |
| Alcohol | Modifiable | Limiting to recommended amounts or abstinence |
| Physical inactivity | Modifiable | 150 min/week of moderate activity or 75 min/week of vigorous activity |
| Stress, poor sleep | Modifiable | Relaxation techniques, improving sleep hygiene |
| Genetics | Non-modifiable | Early screening, targeted monitoring |
Treatment and Interventions
Treatment typically combines medication, lifestyle modifications, and regular medical check-ups.
Medication
- Antihypertensives for blood pressure control
- Statins to lower LDL-cholesterol
- Antithrombotics where indicated
Lifestyle Changes
- Diet: a high-fiber diet, whole grains, fruits, vegetables, limiting saturated fats and salt
- Exercise: regular aerobic activity, strength, and flexibility
- Weight: maintain BMI within the recommended range and waist circumference within target values
- Habits: avoid smoking, limit alcohol
Practical example: A patient with high blood pressure and LDL-cholesterol might be prescribed an antihypertensive, a statin, and dietary recommendations, plus a plan for 30 minutes of brisk walking 5 times a week.
Diagnosis and Monitoring
- Regular blood pressure measurement
- Lipid profile assessment (total cholesterol, HDL, LDL, triglycerides)
- Blood glucose monitoring in patients with diabetes or at high risk
- Risk assessment using scoring tools (e.g., SCORE) and an individualized plan
Definition: SCORE is a scoring system that estimates the 10-year risk of a fatal cardiovascular event based on age, sex, smoking, blood pressure, and cholesterol levels.
Practical Applications and Recommendations for Medical Students
- Clinically, systematically document risk factors during each outpatient visit.
- When communicating with patients, set specific targets: reduce systolic BP by $10$ mmHg, reduce LDL by $1$ mmol/L, etc.
- Suggest achievable changes: a 10% reduction in body weight can improve blood pressure and glycemia.
- Utilize local physical activity support programs and nutritional counseling.
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Cardiovascular Prevention
Klíčové pojmy: Categorize prevention into primary and secondary, and plan according to the patient's condition., Systematically record modifiable risk factors at each visit., Set specific patient goals, for example, a reduction in systolic BP by $10$ mmHg., Recommend at least $150$ minutes of moderate or $75$ minutes of vigorous activity per week., For at-risk patients, regularly monitor lipid profile and blood glucose., Statins reduce LDL and the risk of cardiovascular events in high-risk patients., Support for smoking cessation significantly reduces the risk of cardiovascular events., Small changes in weight ($\sim 10\%$) have a significant positive effect on BP and metabolism., Use scoring tools (e.g., SCORE) to estimate 10-year risk., Educate patients using measurable SMART goals., Monitoring and intensity of care are higher in secondary prevention., Include sleep and stress management as part of prevention.