Reviewed by Dr. A M Thirugnanam, MD, MSICP, FSCAI, Ph.D. — Senior Interventional Cardiologist
The weeks after a heart attack, stent or bypass are the most important of your cardiac life, and the least well supported. You are discharged with a bag of medicines, a follow-up date and very little explanation. Yet the risk of a second event is highest in the first year, and almost everything that reduces it is under your control.
This is called secondary prevention. The targets are stricter than for someone who has never had an event, because you have already proven your arteries are vulnerable.
Your medicines, and why stopping them is dangerous
Antiplatelet therapy
Most people leave hospital on two blood-thinning agents — aspirin plus clopidogrel, ticagrelor or prasugrel. This combination stops a clot forming on the newly placed stent while the artery lining grows over it.
Do not stop these on your own account, for any reason. Stopping early, particularly in the first months after a stent, can cause the stent to clot abruptly — an event that is frequently fatal. If a dentist, surgeon or another doctor asks you to stop them before a procedure, that decision must be discussed with your cardiologist first. Carry a card stating when your stent was placed and what type it was.
Statins
Your LDL target after an event is below 55 mg/dL — much lower than most patients are told. If your report says 90 and you have been reassured it is normal, it is not normal for you. Ask what will be added. Statins after a heart attack do more than lower cholesterol; they stabilise existing plaque so it is less likely to rupture.
Beta blockers
These slow the heart, reduce its workload and reduce the risk of dangerous rhythms. Stopping them suddenly can cause a rebound rise in heart rate and blood pressure. If they make you excessively tired, ask about a dose change rather than stopping.
ACE inhibitors or ARBs
Drugs ending in -pril or -sartan protect the heart muscle from remodelling into a weaker, dilated shape after damage. A dry cough is a recognised side effect of the -pril group and is easily solved by switching to a -sartan.
Cardiac rehabilitation — the most underused treatment in India
Supervised exercise-based cardiac rehabilitation reduces cardiovascular death substantially. It is as valuable as several of your medicines, costs very little, and is offered to only a small minority of Indian patients.
A structured programme typically runs for eight to twelve weeks and combines monitored exercise, education, dietary work and psychological support. If no formal programme is available near you, a supervised walking plan built with your cardiologist is a reasonable substitute.
A typical progression, always confirmed with your own doctor first:
- Weeks 1–2: gentle walking on flat ground, 5–10 minutes, two or three times daily
- Weeks 3–4: building to 20 minutes continuously, at a pace where you can talk but not sing
- Weeks 5–8: 30 minutes, five days a week, gradually adding gentle inclines
- After 8 weeks: add light resistance work twice weekly, if cleared
Stop immediately and seek advice for chest discomfort, unusual breathlessness, dizziness or palpitations during exercise.
Returning to normal life
Work. Most people with desk-based jobs return within two to four weeks after an uncomplicated stent. Physically demanding work needs a longer gap and a specific discussion.
Driving. Usually restricted for about a week after an uncomplicated angioplasty and about four weeks after bypass surgery. Commercial driving has stricter rules.
Sexual activity. Generally safe once you can climb two flights of stairs without symptoms — usually within two to four weeks. This is a normal question and worth asking. Important: drugs for erectile dysfunction must never be combined with nitrates such as sorbitrate, as the combination can cause a catastrophic fall in blood pressure.
Air travel. Usually acceptable after two weeks following an uncomplicated event, longer after bypass surgery.
The part nobody warns you about
Low mood and anxiety after a cardiac event are extremely common — affecting roughly one in five patients — and they are not weakness. Depression after a heart attack independently worsens outcomes, partly because it reduces the likelihood of taking medicines and exercising.
Many patients also become frightened of exertion, interpreting every twinge as another attack. Supervised rehabilitation helps enormously here, precisely because exercising safely under observation rebuilds confidence. If low mood persists beyond a few weeks, tell your doctor. It is treatable, and treating it improves cardiac outcomes.
Warning signs of a second event
Go to hospital immediately for chest discomfort similar to your original event, new or worsening breathlessness, breathlessness when lying flat, rapid swelling of the legs, sudden weight gain of two kilograms or more within a few days, fainting, or a fast irregular heartbeat with light-headedness.
What to ask at your follow-up
- What is my current LDL, and am I below 55?
- How long must I continue dual antiplatelet therapy, and what happens after that?
- What is my ejection fraction, and has it changed since discharge?
- Is there a cardiac rehabilitation programme I can join?
- Which of my arteries were treated, and are any remaining narrowings being monitored?
- What is my target heart rate range during exercise?
Emergency: call 108 or go to the nearest hospital. Do not use this website.
This guide is educational and does not replace a consultation with your own doctor. Never stop or change cardiac medication on the basis of anything you read here.