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Causes and Management of Syncope

Learn about syncope, its common causes, symptoms, and management strategies. Understand how to prevent episodes and when to seek medical care.

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Written by Dr. Md Yusuf Shareef

Reviewed by Dr. M L Ezhilarasan MBBS

Last updated on 1st Sep, 2025

Syncope

Introduction

Syncope, commonly known as fainting, is a sudden and temporary loss of consciousness caused by a drop in blood flow to the brain. While it can be alarming, syncope is often not life-threatening and can be managed with the right care. Let’s explore what causes syncope, its symptoms, and how to manage it effectively.

What Is Syncope?

Syncope is a brief loss of consciousness followed by a quick recovery. It happens when the brain doesn’t get enough oxygen-rich blood, leading to dizziness, lightheadedness, and sometimes a complete blackout. Most people regain consciousness within seconds to minutes.

Consult a Cardiologist for the best advice

Dr. Abhishek Rathore, Cardiologist and Electrophysiologist

Dr. Abhishek Rathore

Cardiologist and Electrophysiologist

7 Years • MBBS, MD (Gen. Medicine), DM ( Cardiology ), Post-Doctoral Fellowship in Cardiac Electrophysiology.

Indore

Apollo Hospitals Vijay Nagar, Indore

1000

No Booking Fees

Dr. Bhethala Sharan Prakash, General Physician/ Internal Medicine Specialist

Dr. Bhethala Sharan Prakash

General Physician/ Internal Medicine Specialist

5 Years • MBBS MD

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

500

75 Cashback

Dr. Ramamurthy Bingi, Cardiologist

Dr. Ramamurthy Bingi

Cardiologist

35 Years • MD (Med), DM (Cardiology)

Bengaluru

Apollo Hospitals Jayanagar, Bengaluru

1250

No Booking Fees

Common Causes of Syncope

Syncope can be triggered by various factors, including:

1. Vasovagal Syncope (Reflex Syncope)

  • The most common type, often caused by stress, pain, dehydration, or standing for long periods.
  • Occurs when the body overreacts to certain triggers, causing a sudden drop in heart rate and blood pressure.

2. Cardiac Syncope

  • Related to heart problems such as arrhythmias (irregular heartbeat), valve disease, or heart failure.
  • More serious and requires medical evaluation.

3. Orthostatic Hypotension

  • Happens when blood pressure drops suddenly upon standing, often due to dehydration, medications, or neurological conditions.

4. Situational Syncope

  • Triggered by specific actions like coughing, swallowing, or urinating.

5. Neurological or Metabolic Causes

  • Rarely, conditions like seizures, low blood sugar, or anaemia can lead to fainting.

Symptoms of Syncope

Before fainting, you may experience:

  • Dizziness or lightheadedness
  • Blurred or tunnel vision
  • Nausea
  • Cold sweats
  • Pale skin
  • Rapid or weak pulse

If you notice these warning signs, sit or lie down immediately to prevent injury from falling.

When to Seek Medical Help

While most fainting episodes are harmless, consult a doctor if:

  • You faint without any warning signs.
  • It happens frequently.
  • You have a history of heart disease.
  • You experience chest pain, shortness of breath, or irregular heartbeat before fainting.

If syncope occurs after a head injury or lasts longer than a few minutes, seek emergency care.

Managing and Preventing Syncope

Simple lifestyle adjustments and medical care can reduce fainting risks. Here’s a guide to managing and preventing syncope:

1. Stay Hydrated

Dehydration can lower blood pressure. Drink plenty of fluids, especially in hot weather.

2. Avoid Triggers

If stress or prolonged standing causes fainting, take breaks and sit down when needed.

3. Change Positions Slowly

Stand up gradually to prevent orthostatic hypotension.

4. Eat Regular Meals

Low blood sugar can trigger fainting. Eat balanced meals and avoid skipping breakfast.

5. Wear Compression Stockings

Helps improve blood circulation in people with low blood pressure.

6. Review Medications

Some blood pressure or heart medications may contribute to fainting. Consult your doctor if needed.

7. Exercise Regularly

Improves circulation and heart health. However, avoid overexertion if you have a heart condition.

Diagnosis and Treatment

If syncope is frequent or unexplained, your doctor may recommend:

  • ECG (Electrocardiogram) – Checks heart rhythm.
  • Holter Monitor – Records heart activity over 24-48 hours.
  • Tilt Table Test – Evaluates how your body responds to position changes. 
  • Blood Tests – Rules out anaemia, diabetes, or electrolyte imbalances.

Treatment depends on the cause:

  • Vasovagal syncope – Lifestyle changes and hydration.
  • Cardiac syncope – Medications, pacemakers, or surgery if needed.

Get Your Health Assessed

When to Consult a Specialist

If you experience recurrent fainting episodes, consult a cardiologist or neurologist for a thorough evaluation. Early diagnosis helps prevent complications.

Conclusion

Syncope can be managed effectively with the right approach. Stay informed, take precautions, and seek medical advice when needed.

Consult a Cardiologist for the best advice

Dr. Abhishek Rathore, Cardiologist and Electrophysiologist

Dr. Abhishek Rathore

Cardiologist and Electrophysiologist

7 Years • MBBS, MD (Gen. Medicine), DM ( Cardiology ), Post-Doctoral Fellowship in Cardiac Electrophysiology.

Indore

Apollo Hospitals Vijay Nagar, Indore

1000

No Booking Fees

Dr. Bhethala Sharan Prakash, General Physician/ Internal Medicine Specialist

Dr. Bhethala Sharan Prakash

General Physician/ Internal Medicine Specialist

5 Years • MBBS MD

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

500

75 Cashback

Dr. Ramamurthy Bingi, Cardiologist

Dr. Ramamurthy Bingi

Cardiologist

35 Years • MD (Med), DM (Cardiology)

Bengaluru

Apollo Hospitals Jayanagar, Bengaluru

1250

No Booking Fees

Consult a Cardiologist for the best advice

Dr. Sushith C, General Physician

Dr. Sushith C

General Physician

2 Years • MBBS

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

60 Cashback

Dr. Dayanashre N, General Physician

Dr. Dayanashre N

General Physician

3 Years • MBBS

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

500

75 Cashback

Dr. Abhishek Rathore, Cardiologist and Electrophysiologist

Dr. Abhishek Rathore

Cardiologist and Electrophysiologist

7 Years • MBBS, MD (Gen. Medicine), DM ( Cardiology ), Post-Doctoral Fellowship in Cardiac Electrophysiology.

Indore

Apollo Hospitals Vijay Nagar, Indore

1000

No Booking Fees

Dr. Bhethala Sharan Prakash, General Physician/ Internal Medicine Specialist

Dr. Bhethala Sharan Prakash

General Physician/ Internal Medicine Specialist

5 Years • MBBS MD

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

500

75 Cashback

Dr. Ramamurthy Bingi, Cardiologist

Dr. Ramamurthy Bingi

Cardiologist

35 Years • MD (Med), DM (Cardiology)

Bengaluru

Apollo Hospitals Jayanagar, Bengaluru

1250

No Booking Fees

Consult a Cardiologist for the best advice

Dr. Sushith C, General Physician

Dr. Sushith C

General Physician

2 Years • MBBS

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

60 Cashback

Dr. Dayanashre N, General Physician

Dr. Dayanashre N

General Physician

3 Years • MBBS

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

500

75 Cashback

Dr. Abhishek Rathore, Cardiologist and Electrophysiologist

Dr. Abhishek Rathore

Cardiologist and Electrophysiologist

7 Years • MBBS, MD (Gen. Medicine), DM ( Cardiology ), Post-Doctoral Fellowship in Cardiac Electrophysiology.

Indore

Apollo Hospitals Vijay Nagar, Indore

1000

No Booking Fees

Dr. Bhethala Sharan Prakash, General Physician/ Internal Medicine Specialist

Dr. Bhethala Sharan Prakash

General Physician/ Internal Medicine Specialist

5 Years • MBBS MD

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

500

75 Cashback

Dr. Ramamurthy Bingi, Cardiologist

Dr. Ramamurthy Bingi

Cardiologist

35 Years • MD (Med), DM (Cardiology)

Bengaluru

Apollo Hospitals Jayanagar, Bengaluru

1250

No Booking Fees

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