IHD Evaluation

What is an IHD Evaluation?

An IHD evaluation is the organized workup used to find out whether your heart muscle is getting enough blood. IHD stands for ischemic heart disease, which means the coronary arteries that feed the heart have narrowed, usually from plaque. Plaque is the fatty and calcified deposit that builds up inside artery walls. When a narrowed artery cannot deliver enough blood during exertion, the heart muscle becomes starved of oxygen. That is ischemia, and it often shows up as chest pressure, breathlessness, or unusual fatigue. The evaluation is a sequence rather than a single test. It starts with your history and examination, then adds blood work and an electrocardiogram. Imaging or stress testing then answers two questions. Is blood flow actually reduced, and if so, how much heart muscle is affected? The answers determine whether medication, lifestyle change, or a procedure is the right treatment. Dr. Vimal Nanavati coordinates the whole sequence for you.

Why Dr. Nanavati may recommend this

Ischemic heart disease is the most common form of heart disease, and it is often treatable long before a heart attack occurs. The National Heart, Lung, and Blood Institute describes coronary heart disease and its causes. The American Heart Association explains the warning signs of a heart attack.

Dr. Nanavati may recommend an evaluation if you have:

• Chest pain, pressure, tightness, or burning, especially when it comes on with exertion and eases with rest.
• Discomfort spreading to the jaw, neck, shoulder, arm, or upper back.
• Shortness of breath with activity, or a clear drop in stamina.
• Nausea, sweating, or unusual fatigue with exertion, which are common presentations in women and in people with diabetes.
• Several risk factors together, such as high blood pressure, high cholesterol, diabetes, smoking, or a strong family history.
• An abnormal electrocardiogram or an incidental finding of coronary calcium on another scan.
• A previous heart attack, stent, or bypass, where recurring symptoms need reassessment.

Sudden severe chest pain is an emergency, especially with sweating, nausea, or breathlessness. Call 911 rather than booking an appointment.

How to prepare

The evaluation involves several tests, so preparation depends on which ones are scheduled.

• Bring every medication and supplement you take, with doses, plus records of previous cardiac testing.
• Write down your symptom pattern before the visit. What brings it on, how long it lasts, what relieves it, and whether it is changing.
• Note your family history, particularly heart attack or sudden death in a parent or sibling before age 60.
• For fasting blood work, expect 9 to 12 hours of water only if you are told to fast.
• For stress testing, avoid caffeine for 12 to 24 hours. Wear walking shoes and comfortable clothing, and ask which medications to hold that morning.
• For CT imaging, expect a period without food. Report any allergy to contrast dye and any kidney problems.
• Ask whether you will need a driver, which is usually only the case if sedation is planned.
• Allow extra time. Several appointments across a few weeks is normal.

What happens during the procedure

An IHD evaluation is a series of steps rather than one procedure. Not everyone needs all of them.

It begins with a consultation. Dr. Nanavati takes a detailed history and examines you. He checks blood pressure in both arms, and listens to the heart, lungs, and major arteries.

Blood tests follow. These typically include cholesterol and triglycerides, blood sugar or hemoglobin A1c, and kidney and liver function. Thyroid function and a blood count are usually checked as well. Advanced lipid testing may be added when risk is unclear.

An electrocardiogram records the heart's electrical activity and can show evidence of a prior heart attack or ongoing strain. An echocardiogram shows chamber size, valve function, and pumping strength. It can also reveal areas of muscle that move poorly because of reduced blood supply.

Functional testing comes next when needed. A treadmill or medication-based stress test shows whether blood flow falls short under demand. Imaging is sometimes added, such as advanced stress testing.

Anatomic imaging such as coronary CT angiography pictures the arteries directly. If the findings suggest a severe blockage, a coronary angiogram in a hospital catheterization laboratory maps the arteries precisely. It also allows treatment during the same procedure.

Recovery and results

Most of the evaluation involves no recovery at all. You can drive, work, and exercise immediately after blood tests, an electrocardiogram, an echocardiogram, or a stress test. The exception is if you were sedated or told otherwise.

Results arrive at different speeds. An electrocardiogram is read the same day. Routine blood work usually returns in a day or two, while advanced panels take longer. Imaging reports generally reach Dr. Nanavati within a few days. He then puts the pieces together and explains the overall picture rather than sending isolated numbers.

The outcome falls into three broad paths. Testing may come back normal. The focus then shifts to prevention and to finding another explanation for your symptoms. Mild to moderate disease calls for medication, cholesterol and blood pressure control, and diabetes management. Smoking cessation and structured exercise matter just as much, and together these steps are highly effective. A severe blockage changes the conversation. The discussion turns to a procedure such as angioplasty or bypass surgery, followed by cardiac rehabilitation.

Risks and safety

The evaluation as a whole is low risk. Each step carries its own small and specific risks.

Blood draws cause a brief sting and occasional bruising. Electrocardiography and echocardiography carry no risk at all, since both are passive tests and neither one uses radiation.

Stress testing carries a small risk, because it deliberately makes the heart work harder. Chest discomfort, breathlessness, and fatigue are expected. Serious events such as a heart attack or a dangerous rhythm are rare. Testing is always supervised, with monitoring and emergency equipment on hand.

Tests using contrast dye can cause allergic reactions, usually mild ones. The dye can also affect kidney function for a time. That matters most in people with kidney disease or diabetes. CT imaging and nuclear scans involve radiation exposure. We keep the dose as low as possible, and the information gained justifies it.

Coronary angiography is the most invasive step. It carries small risks of bleeding at the access site and artery injury, and rarely heart attack or stroke.

The guiding principle is simple. Each test should be ordered only when its result will change what happens next.

Related services and conditions

• Coronary artery disease, the underlying diagnosis.
• Advanced stress testing and coronary CT angiography.
• Cardiology services at our practice.
• Request an appointment online