March 10, 2026

Understanding Key Facts and Myths About Atrial Fibrillation

Your heart is a muscle with a complex cardiac electrical system that controls the pumping action of the four chambers of the heart. When this cardiac electrical system malfunctions, it causes a heart arrhythmia — an abnormal heart rhythm you might feel as a fluttering or irregular sensation in your chest. In some cases, doctors […]

July 16, 2025

by Dr. Karthigesan

What is Heart Flutter and Why Does It Occur?

You might not give it a second thought until your heart does something abnormal, like it's fluttering, pounding, racing, or skipping a beat. This sensation—termed a heart flutter/palpitations (medically)—suddenly makes you aware of each rhythm shift. And here’s the real question: Do you feel a fluttering in your chest? Although this feeling can be deeply […]

May 30, 2025

by Dr. Karthigesan

How Does Atrial Fibrillation (AFib) Increase Stroke Risk?

Atrial Fibrillation (AFib) may seem harmless at first, but it carries a hidden danger—a significantly higher risk of stroke. In fact, AFib increases your stroke risk, often without noticeable symptoms. The core risk is compromised heart pumping during AFib that allows blood to pool and form clots, which can travel to the brain, causing a […]

March 14, 2025

by Dr. Karthigesan

Catheter Ablation for Atrial Fibrillation

Atrial fibrillation (AFib) is a heart condition characterised by an irregular rhythm caused by faulty electrical signals. In AFib, the upper chambers (atria) beat irregularly, sending uncoordinated signals to the lower chambers (ventricles). Catheter ablation targets these faulty signals using minor burns or freezes to correct the heart's electrical pathways. This procedure helps restore a […]

May 15, 2024

by Dr. Karthigesan

The Impact of AFib and Diabetes on Your Hearts Rhythm

You might not realise how the challenge of controlling your blood sugar could stealthily influence your heartbeat. Your heart depends on precise, steady rhythms to work well. Yet, for those living with diabetes, the risk of experiencing AFib diabetes or irregular heartbeat diabetes is notably higher. This deep dive will examine how diabetes can sway […]

March 23, 2024

by Dr. Karthigesan

Is AFib After Menopause Linked to Stress And Insomnia?

Your journey post-menopause may present unexpected challenges, particularly concerning your heart rhythm. Atrial fibrillation, or AFib, is a heart condition causing irregular and often rapid beats, and it is becoming increasingly linked to stress and sleepless nights for women in your stage of life. Is AFib after menopause linked to stress and insomnia? Is there […]

Photo of Dr. Karthigesan A.M, Senior Consultant Cardiologist, Apollo Hospitals, Chennai.

Dr. A. M. Karthigesan

Interventional Cardiologist in Chennai

Blog

Understanding Key Facts and Myths About Atrial Fibrillation

What is Heart Flutter and Why Does It Occur?

How Does Atrial Fibrillation (AFib) Increase Stroke Risk?

Catheter Ablation for Atrial Fibrillation

The Impact of AFib and Diabetes on Your Hearts Rhythm

Is AFib After Menopause Linked to Stress And Insomnia?

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