🩺 ECG Course:
https://www.udemy.com/course/ecgguide

Second-degree AV block, Mobitz Type I (also known as Wenckebach block), is a type of heart block characterized by a delay in the electrical signals between the atria and ventricles of the heart. In this condition, not all atrial impulses are transmitted to the ventricles.

Here's how it happens:

*Normal Heart Conduction:*
In a normal heart, electrical signals generated by the sinoatrial (SA) node in the atria travel through the atria, causing them to contract and push blood into the ventricles. Then, the signals pass through the atrioventricular (AV) node, which acts as a bridge between the atria and ventricles. From the AV node, the signals travel to the ventricles, causing them to contract and pump blood to the rest of the body.

*Second-Degree AV Block, Mobitz Type I:*
In Mobitz Type I, there is a progressive delay in the electrical conduction through the AV node with each heartbeat until a signal is completely blocked, and a ventricular beat is skipped. This delay in conduction is usually seen in the PR interval on an electrocardiogram (ECG). The PR interval becomes longer and longer until a beat is "dropped" (not conducted to the ventricles), and the cycle starts again.

The exact cause of Mobitz Type I block can vary. It can be due to age-related degeneration of the conduction system, heart disease, medications, or other underlying medical conditions.

*Symptoms:*
- *Dizziness*
- *Fatigue*
- **Fainting (syncope)**, especially if the heart rate drops significantly
- *Chest pain*

*Treatment:*
The management of Mobitz Type I block depends on the severity of symptoms and the underlying cause. Asymptomatic cases might not require immediate treatment. However, if symptoms are severe or if there is a risk of progression to a higher degree of heart block, treatment options may include:
- *Monitoring:* Regular monitoring of heart rhythm.
- *Medications:* Certain medications, such as atropine or isoproterenol, can be used to increase heart rate and improve conduction.
- *Temporary Pacemaker:* In severe cases, a temporary pacemaker might be used to stabilize the heart rate and rhythm.
- *Permanent Pacemaker:* If Mobitz Type I block is persistent or causes significant symptoms, a permanent pacemaker may be implanted to regulate the heart's rhythm and ensure proper conduction of electrical signals.

It's essential for individuals diagnosed with Mobitz Type I block to work closely with a healthcare provider or a cardiologist to determine the most appropriate treatment plan based on their specific condition and symptoms.

- - - - - - - - - -
Music by INOSSI
Listen: https://bit.ly/3mIA24Z
Watch:    • INOSSI - Illusion (Official)  
- - - - - - - - - -