Heart Block

Interventional Cardiologist Dr. Lim offers heart block services in her cardiology clinic at  Singapore and Heartbeat is also called “Pulse of your Heart”. If your pulse stops or an abnormal heart rhythm starts, it’s a sign of heart blockage. The blockage of upper chambers and lower chambers are part of the heart block.

What is Heart block and what causes it?

An atrioventricular block is caused by a total block between the upper and lower chambers or slow heartbeat/abnormal heart rhythm. Heartbeats come from the upper-right chambers of the heart and bundle of cells act as natural pacemakers. And sends an electrical signal to the lower chamber which helps to pump blood.

  • Types of heart blockage.

  1. First-Degree heart block: In a first-degree heart block, Electrical cells pass slowly from the heart and reach the ventricles. This heart block has no symptoms and requires no treatment. 
  2. Second-Degree heart block: Before heartbeats reach the ventricles, a second-degree heart block causes all electrical cells to be delayed with every heartbeat until a beat fails.  Symptoms like dizziness or other pains and its treatment progress.
  3. Third-Degree heart block: This stage of a heart block is very serious. Not even one nerve impulse reaches the ventricles, resulting in the triggering of escape beats which are backup beats of the heart and are very slow compared to regular beats. You may feel dizziness, lightheadedness, and fatigue.

Symptoms and Causes:

Typical symptoms of a heart block are similar to Arrhythmia like dizziness, lightheadedness, fainting, chest pain, and shortness of breath. Some people develop heart block problems from birth so it can cause more damage to the heart.

  • lack of energy
  • palpitations
  • giddiness
  • lightheadedness
  • loss of consciousness

Diagnosis and Treatments: 

Electrocardiogram (ECG) will help diagnose heart blocks by recording heart activity. When it comes to heart blocks, first-degree and second degrees rarely need treatment and can be treated by Pacemakers.  A third-degree heart block can be treated by a pacemaker only if a heart condition isn’t too serious. 

If you feel or show signs of dizziness, lightheadedness, or fatigue, contact Heart specialist  Dr. Lim Ing Haan Heart Hospital today to schedule an appointment.

This refers to problems with conduction of heart beats leading to dropped beats or slower heart rate.

Electrical System of the Heart - Dr. Lim Ing  Haan Cardiology Clinic