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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. J T Hema Pratima

Reviewed by Dr. Vasanthasree Nair MBBS

Last updated on 4th Sep, 2025

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. Anand Ravi, General Physician

Dr. Anand Ravi

General Physician

2 Years • MBBS

Bengaluru

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400

Dr. E Prabhakar Sastry, General Physician/ Internal Medicine Specialist

Dr. E Prabhakar Sastry

General Physician/ Internal Medicine Specialist

40 Years • MD(Internal Medicine)

Manikonda Jagir

Apollo Clinic, Manikonda, Manikonda Jagir

recommendation

90%

(125+ Patients)

1000

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No Booking Fees

Dr. Zulkarnain, General Physician

Dr. Zulkarnain

General Physician

2 Years • MBBS, PGDM, FFM

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

Dr. Tripti Deb, Cardiologist

Dr. Tripti Deb

Cardiologist

40 Years • MBBS, MD, DM, FACC, FESC

Hyderabad

Apollo Hospitals Jubilee Hills, Hyderabad

550

1000

No Booking Fees

Dr. Janjirala Seshivardhan, Cardiologist

Dr. Janjirala Seshivardhan

Cardiologist

7 Years • MBBS,DNB(GM),DM(Cardiology)

Manikonda Jagir

Apollo Clinic, Manikonda, Manikonda Jagir

850

850

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.

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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 Top Cardiologists

Dr. Anand Ravi, General Physician

Dr. Anand Ravi

General Physician

2 Years • MBBS

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

Dr. E Prabhakar Sastry, General Physician/ Internal Medicine Specialist

Dr. E Prabhakar Sastry

General Physician/ Internal Medicine Specialist

40 Years • MD(Internal Medicine)

Manikonda Jagir

Apollo Clinic, Manikonda, Manikonda Jagir

recommendation

90%

(125+ Patients)

1000

1000

No Booking Fees

Dr. Zulkarnain, General Physician

Dr. Zulkarnain

General Physician

2 Years • MBBS, PGDM, FFM

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

Dr. Tripti Deb, Cardiologist

Dr. Tripti Deb

Cardiologist

40 Years • MBBS, MD, DM, FACC, FESC

Hyderabad

Apollo Hospitals Jubilee Hills, Hyderabad

550

1000

No Booking Fees

Dr. Janjirala Seshivardhan, Cardiologist

Dr. Janjirala Seshivardhan

Cardiologist

7 Years • MBBS,DNB(GM),DM(Cardiology)

Manikonda Jagir

Apollo Clinic, Manikonda, Manikonda Jagir

850

850

No Booking Fees

Consult a Cardiologist for the best advice

Dr. Anand Ravi, General Physician

Dr. Anand Ravi

General Physician

2 Years • MBBS

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

Dr. E Prabhakar Sastry, General Physician/ Internal Medicine Specialist

Dr. E Prabhakar Sastry

General Physician/ Internal Medicine Specialist

40 Years • MD(Internal Medicine)

Manikonda Jagir

Apollo Clinic, Manikonda, Manikonda Jagir

recommendation

90%

(125+ Patients)

1000

1000

No Booking Fees

Dr. Zulkarnain, General Physician

Dr. Zulkarnain

General Physician

2 Years • MBBS, PGDM, FFM

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

Dr. Tripti Deb, Cardiologist

Dr. Tripti Deb

Cardiologist

40 Years • MBBS, MD, DM, FACC, FESC

Hyderabad

Apollo Hospitals Jubilee Hills, Hyderabad

550

1000

No Booking Fees

Dr. Janjirala Seshivardhan, Cardiologist

Dr. Janjirala Seshivardhan

Cardiologist

7 Years • MBBS,DNB(GM),DM(Cardiology)

Manikonda Jagir

Apollo Clinic, Manikonda, Manikonda Jagir

850

850

No Booking Fees

Consult Top Cardiologists

Dr. Anand Ravi, General Physician

Dr. Anand Ravi

General Physician

2 Years • MBBS

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

Dr. E Prabhakar Sastry, General Physician/ Internal Medicine Specialist

Dr. E Prabhakar Sastry

General Physician/ Internal Medicine Specialist

40 Years • MD(Internal Medicine)

Manikonda Jagir

Apollo Clinic, Manikonda, Manikonda Jagir

recommendation

90%

(125+ Patients)

1000

1000

No Booking Fees

Dr. Zulkarnain, General Physician

Dr. Zulkarnain

General Physician

2 Years • MBBS, PGDM, FFM

Bengaluru

PRESTIGE SHANTHINIKETAN - SOCIETY CLINIC, Bengaluru

400

Dr. Tripti Deb, Cardiologist

Dr. Tripti Deb

Cardiologist

40 Years • MBBS, MD, DM, FACC, FESC

Hyderabad

Apollo Hospitals Jubilee Hills, Hyderabad

550

1000

No Booking Fees

Dr. Janjirala Seshivardhan, Cardiologist

Dr. Janjirala Seshivardhan

Cardiologist

7 Years • MBBS,DNB(GM),DM(Cardiology)

Manikonda Jagir

Apollo Clinic, Manikonda, Manikonda Jagir

850

850

No Booking Fees

Get Your Health Assessed

395(₹988)60% off

950(₹2375)60% off

90(₹225)60% off

660(₹1650)60% off

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