Cardiac Syncope (Fainting) | Diagnosis and Treatment

What is Cardiac Syncope (Fainting)?

Cardiac syncope is a medical term for a blackout or fainting episode that is caused from a heart-related issue. It occurs when a sudden, temporary drop in blood supply to the brain triggers a brief loss of consciousness. Unlike the common faint, known as vasovagal syncope, cardiogenic syncope can be a sign of an underlying heart condition that requires prompt investigation.  

Cardiac Syncope Vs Vasovagal Syncope

Cardiac syncope is often confused with vasovagal syncope, also called a common faint or neurocardiogenic syncope. Understanding the difference is important for receiving the right diagnosis and care.

Symptoms of Cardiac Syncope

Fainting or passing out is the most common sign of cardiovascular syncope. However, many patients experience warning signs, known as pre-syncope, before losing consciousness. Being aware of these signs can help you act quickly and reduce the risk of injury.

Common warning signs may include:

If you experience any of these symptoms, make sure to sit or lie down immediately and raise your legs above heart level. It helps restore blood flow to the brain and can prevent severe fainting episodes and the injuries that can result from a sudden fall.

Cardiac Causes of Syncope

Syncope can be caused by different underlying health problems. Cardiac syncope, while less common, is directly linked to conditions affecting the heart and blood vessels. Identifying the exact cause is essential to determining the most appropriate treatment. Heart conditions that can cause syncope include:

Our Specialists’ Diagnostic Approach to Cardiac Syncope

Not every fainting episode indicates a cardiac problem; in some cases, lifestyle factors or external triggers may be responsible. At The National Heart Clinic, our specialists take a thorough, personalised approach to diagnosis, beginning with a detailed physical examination and a review of your medical and family history.

Where further investigation is needed, we may recommend one or more of the following diagnostic tests:

Lifestyle Modifications and Treatment Options

Treatment for cardiac syncope is tailored to your individual symptoms, medical history, and overall health. Our cardiologists will walk you through every stage of your care, clearly explaining the reasoning behind each recommendation so you feel informed and confident in your treatment plan.

Lifestyle modifications can play a significant role in reducing both the frequency and severity of syncopal episodes. Our specialists provide expert, personalised guidance in that regard, including:

For patients whose syncope has an underlying cardiac cause, medical or interventional treatment may also be recommended alongside lifestyle changes.

Why Choose The National Heart Clinic?

Our experienced cardiology specialists provide comprehensive assessments, advanced diagnostics, and personalised treatment plans to help patients receive the right care.

Early diagnosis and specialist care can help identify the underlying cause of your symptoms and support effective long-term management.

Book a Private Consultation Today

Book an appointment with a cardiac consultant at The National Heart Clinic, Harley Street, London, and get expert assessment, accurate diagnosis, and a personalised treatment plan to manage your symptoms effectively.