EST

Exercise Stress Test

Exercise Stress Test (EST) Service

An Exercise Stress Test is a diagnostic tool that monitors the heart's electrical activity while it is under stress, such as during physical exertion. It is commonly used for patients who experience symptoms like shortness of breath or chest tightness, to determine whether these symptoms are caused by coronary artery disease. If a patient has a condition like myocardial ischemia or narrowed coronary arteries, the heart may not receive enough blood during exertion, resulting in abnormal electrocardiogram (EKG) readings. Even in asymptomatic high-risk individuals, this test can be useful for risk assessment. Additionally, the EST is valuable for evaluating overall heart and physical fitness.

What is an Exercise Stress Test (EST)?

An Exercise Stress Test (EST) involves walking on a treadmill while the hearts activity is closely monitored. This test evaluates how the heart performs under stress, such as during walking or light jogging. It helps physicians assess the hearts capacity to cope with physical exertion and can aid in the diagnosis of ischemic heart disease or coronary artery narrowing.

Why Undergo an EST?

The Exercise Stress Test is useful for:

• Detecting coronary artery disease or myocardial ischemia
• Evaluating the hearts performance during physical activity
• Investigating causes of chest pain, breathlessness, or palpitations during exertion
• Assessing the effectiveness of treatment or post-surgical recovery
• Screening patients with risk factors (e.g., diabetes, hypertension, high cholesterol) before starting an exercise program

How is the Test Performed?

1. Electrodes are attached to the chest, arms, and legs to record heart activity (EKG)
2. A blood pressure monitor is placed on the arm
3. The test begins with walking at a slow pace on a treadmill
4. Speed and incline are gradually increased
5. Throughout the test, the doctor monitors heart rate, blood pressure, and symptoms closely
6. The test is stopped once a certain threshold is reached or if the patient experiences abnormal symptoms
7. The entire test usually takes around 5 - 15 minutes, depending on individual tolerance

How to Prepare for an EST

• Avoid heavy meals for at least 2 hours before the test
• Refrain from caffeine (tea, coffee, energy drinks)
• Wear comfortable clothes and shoes suitable for exercise
• If you are on regular medication (especially heart or blood pressure medications), inform your doctor beforehand as adjustments may be necessary
• Asthma patients using inhalers should bring them on the day of the test

Benefits of the Exercise Stress Test

• Identifies whether chest discomfort or exertional breathlessness is due to coronary artery disease or ischemia
• Assesses risk in asymptomatic individuals who have moderate to high risk of coronary artery disease
• Evaluates the progression of coronary disease and whether invasive treatment like angioplasty is needed
• Helps diagnose certain types of arrhythmias (irregular heartbeats)
• Measures the maximum capacity of the heart and body during exercise
• Useful for post-myocardial infarction patients to determine exercise tolerance

Who Should Consider an EST?

• Individuals with chest pain during physical activity
• People with risk factors such as diabetes, hypertension, or high cholesterol
• Patients needing evaluation prior to exercise or surgery
• Individuals with a history of myocardial ischemia who require follow-up monitoring

The Exercise Stress Test is a vital tool that helps doctors understand how well the heart functions under physical stress. It plays a key role in diagnosing heart disease and planning appropriate treatment. If you have symptoms or are at risk, it is advisable to undergo this test under medical supervision.