If you’ve ever felt sudden chest pain or heaviness, your first thought might be to rush for an angiography. But AIIMS-trained doctor Priyanka Sehrawat warns that this common step may not always detect an impending heart attack. Understanding what your tests can (and cannot) reveal is crucial for protecting your heart.
Why Angiography Isn’t Enough For Detecting Heart Attack
Many people believe angiography is the ultimate test for heart problems. Priyanka Sehrawat explains, “It shows how much blood supply is reaching the heart, how the heart’s valves are functioning, and whether the valves have become enlarged. It can also reveal if there was a previous heart attack that caused a part of the heart to stop working properly.”
However, angiography has limits. It cannot predict an impending heart attack. That risk is detected through an ECG (electrocardiogram) and a TMT (treadmill test). While angiography focuses on the blood vessels and structure, an ECG tracks electrical changes in the heart and a TMT tests the heart under stress.
How ECG And Treadmill Test Detect Early Heart Trouble
So, what exactly causes a heart attack? Dr Sehrawat explains that it occurs due to a mismatch between supply and demand. She says, “Your heart muscle needs oxygen to work. When the oxygen supply reduces while demand increases, this imbalance triggers a heart attack.”
The ECG and treadmill test help detect this mismatch. During a treadmill test, your heart’s demand rises through exercise. The test checks whether the blood supply can keep up with the increased need. Any imbalance indicates potential risk, often before a full-blown heart attack occurs.
Most importantly, Dr Sehrawat emphasises, do not self-diagnose. “If you have chest-related symptoms, always consult a doctor. They will decide which tests are necessary based on your condition.”
Disclaimer: This content is for general information only and not a substitute for professional medical advice. DNP India neither confirms nor denies the claims. Always consult a doctor before following any suggestions, treatments or diets.


