Diabetes and Heart Disease: Understanding the Connection
Diabetes and heart disease are closely linked. People with diabetes have a significantly higher risk of coronary artery disease, and they often develop it earlier and more extensively. In India, where diabetes is common and frequently develops at younger ages, this connection deserves particular attention.
Why diabetes affects the arteries
Persistently raised blood glucose damages the lining of blood vessels over time, accelerating the build-up of plaque that narrows arteries. Diabetes also frequently occurs alongside high blood pressure, abnormal cholesterol and excess weight, each adding further risk.
The result is that coronary disease in people with diabetes tends to involve more vessels and longer segments, which can make treatment more complex.
The problem of masked symptoms
Long-standing diabetes can damage the nerves that carry pain signals. As a consequence, some people with diabetes experience heart attacks with little or no chest pain — sometimes called a silent heart attack.
Instead of pain, the presentation may be unexplained breathlessness, unusual fatigue, nausea, sweating or a vague sense of being unwell. These symptoms deserve to be taken seriously rather than attributed to tiredness.
What reduces risk
Good glucose control matters, but cardiovascular risk in diabetes is reduced most effectively by addressing several factors together: blood pressure, cholesterol, weight, physical activity and stopping smoking.
Certain diabetes medications have been shown to offer cardiovascular benefit beyond glucose lowering. Whether these are appropriate is a decision for your treating doctors.
Screening and monitoring
Because symptoms may be muted, people with diabetes benefit from regular cardiovascular assessment rather than waiting for symptoms to appear. This typically includes blood pressure, cholesterol profile, kidney function and periodic cardiac evaluation.
The threshold for investigating unexplained breathlessness or fatigue should be lower in someone with diabetes than in someone without.
Frequently asked questions
Does having diabetes mean I will develop heart disease?
No, but risk is meaningfully higher. Comprehensive risk-factor control substantially reduces that risk.
Why might I not feel chest pain during a heart attack?
Diabetes can affect the nerves carrying pain signals, so cardiac events may present as breathlessness, fatigue or nausea instead.
What cardiac tests are advised for people with diabetes?
This is individual, but assessment commonly includes blood pressure, lipid profile, ECG and, where indicated, echocardiography or stress testing.
Is type 2 diabetes reversible?
Some people achieve remission through substantial weight loss and lifestyle change, particularly early after diagnosis. Cardiovascular risk management remains important regardless.
Have a question about your heart health?
Consultations with Dr. Ray are held at Fortis Hospital, Anandapur, Kolkata.
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