Heart Failure
Heart failure means the heart is still beating but struggles to pump or fill well enough. It is a serious diagnosis that calls for careful, ongoing management, not a one-time fix.
Medically reviewed by the RIIMS medical team · Last updated: June 2026
Go to hospital now
- Severe breathlessness at rest, or waking up gasping for air
- Coughing up pink, frothy sputum
- Chest pain
- Fainting or a sudden loss of consciousness
See a doctor soon (not an emergency)
- Weight gain of a few kilograms over a few days
- New or worsening swelling in the legs or abdomen
- Needing more pillows than usual to sleep comfortably
What does a diagnosis of heart failure actually mean?
Heart failure does not mean the heart has stopped. It means the heart muscle has become too weak, or too stiff, to pump or fill with blood as well as it should, so the body does not get enough blood flow and fluid backs up, usually into the lungs, legs and abdomen. It is a long-term condition to be managed with ongoing care, and good treatment lets many people live fuller, more active lives for years. India's heart failure picture looks different from the West in ways that matter. Data from the National Heart Failure Registry shows Indian patients are, on average, about a decade younger than heart failure patients in high-income countries, with most of the burden below 65 years of age. In the Trivandrum Heart Failure Registry, a blocked or narrowed artery, ischaemic heart disease, was the cause in 72% of patients, and only around 25% received the full guideline-recommended combination of medicines at discharge, a gap that reflects access and awareness as much as anything else. This is one of the clearest reasons early, consistent, doctor-led care matters: the medicines that make the biggest difference in heart failure are well established, but they only help if they are actually taken and adjusted over time by someone who knows your case.
Symptoms to watch for
- Breathlessness on exertion, worse over days to weeks
- Swelling in the feet, ankles or legs
- Needing more pillows to breathe comfortably at night
- Waking up breathless
- Unexplained weight gain of a few kilograms over a few days, from fluid
- Persistent tiredness and reduced ability to exercise
When to consult a doctor
See a doctor if you notice breathlessness on ordinary activity, new swelling in the legs, or unexplained weight gain over a few days. If you already have a heart failure diagnosis, weigh yourself regularly and contact your doctor early for any of these changes, before they become severe.