A DC (Direct Current) shock, in a medical context, refers to a controlled electrical shock delivered to the heart using a defibrillator with the aim of restoring a normal heart rhythm. This procedure is also known as direct current cardioversion.
Understanding DC Cardioversion
Direct current cardioversion is a procedure which uses a defibrillator (a medical device) to deliver a controlled electric shock to your heart in order to try and return your heart rhythm (or beat) to normal (reference). In essence, the DC shock acts as a reset button for the heart's electrical activity.
Key Aspects of a DC Shock (Cardioversion)
| Aspect | Description |
|---|---|
| Purpose | To restore a normal heart rhythm. |
| Device | Defibrillator, a medical device delivering controlled electrical shocks. |
| Current Type | Direct Current (DC). |
| Control | Delivered in a controlled manner by medical professionals. |
When is a DC Shock Used?
DC shocks are used in scenarios where the heart's electrical activity is disrupted, leading to abnormal rhythms such as:
- Atrial fibrillation
- Atrial flutter
- Ventricular tachycardia
- Supraventricular tachycardia
How it Works
- The defibrillator delivers a precise dose of DC electricity.
- This electricity momentarily stuns the heart, interrupting the abnormal electrical circuits.
- Ideally, this allows the heart's natural pacemaker (the sinoatrial node) to regain control and establish a normal, regular heartbeat.
