What is diabetic heart disease?

Diabetic heart disease is a comprehensive medical term used to describe a variety of cardiovascular diseases that affect people living with diabetes. Living with diabetes puts a patient in a higher risk category for developing heart disease or stroke compared to those without the condition, and these health issues often begin to appear at a younger age [1].

How does diabetes affect your heart?

Elevated blood sugar levels, which are the hallmark of diabetes, cause cumulative damage to the blood vessels and the nerves that supply the heart and are responsible for regulating its functions [2]. This damage does not happen suddenly; it develops over time, leading to several cardiac conditions, including coronary artery disease. This occurs as a result of plaque (a sticky substance) buildup in the arteries, which hinders the flow of oxygen-rich blood to the heart muscle [1].

Additionally, diabetes may lead to conditions such as heart failure, where the heart is unable to pump blood effectively enough to meet the body's vital needs, or cardiomyopathy, which causes stiffening or enlargement of the heart muscle [1]. The risks do not stop there; patients with diabetes often suffer from additional risk factors that worsen the condition, such as high blood pressure, cholesterol abnormalities (increased triglycerides and LDL cholesterol), and obesity—particularly the accumulation of abdominal fat. The risk increases if waist circumference exceeds 40 inches for men and 35 inches for women [1] [2].

Challenges in detecting symptoms

It is a significant medical fact that heart disease in its early stages is often silent and causes no obvious symptoms [1]. As the condition progresses, symptoms may include shortness of breath, dizziness, unexplained fatigue, or swelling in the feet and ankles. However, extreme caution must be exercised; patients with diabetes may not feel the classic chest pain associated with heart attacks due to nerve damage caused by diabetes (neuropathy), making the disease more subtle and dangerous [1] [2].

To accurately diagnose this condition, doctors rely on a comprehensive medical history, clinical examination, and regular, precise tests, including checking glucose (A1C) levels, cholesterol, and triglycerides, in addition to regular blood pressure monitoring [1] [2].

Essential steps for protection and prevention

Protecting the heart in patients with diabetes requires a proactive strategy based on controlling the "ABC" risk factors: Blood sugar, Blood pressure, and Cholesterol. It is essential to reach specific goals; for example, it is usually recommended that blood pressure be less than 140/90 mmHg, and you must consult your doctor to determine the appropriate targets for your individual health condition [2]. For more practical prevention steps, you can visit our article on Diabetes and Heart Disease: How to Protect Your Heart and Blood Vessels? (Arabic)

The treatment plan also includes adopting healthy lifestyle habits, such as quitting smoking completely, as smoking and diabetes together acutely narrow blood vessels, increasing the workload on the heart. It is also recommended to follow a balanced diet, engage in regular physical activity, and adhere to prescribed medications (such as statins to control cholesterol), while consulting a doctor before taking any daily preventative medications like aspirin [2].

When should you call emergency services?

Given that symptoms may be atypical, a patient with diabetes must be fully aware of the signs that require an immediate request for medical help (calling emergency services). These signs include: chest pain or pressure that lasts for more than a few minutes or disappears and returns, discomfort in the arms, back, neck, or jaw, severe shortness of breath, cold sweats, dizziness, or severe, unexplained nausea [2]. Reacting quickly to these symptoms saves lives, as cardiac treatments are more effective the earlier they are administered.

Medical references

• Diabetic Heart Disease
• Diabetes, Heart Disease, & Stroke