മലയാളം പതിപ്പ്: [ Ссылка ]
Please watch the full version at my Cardiology Talks channel at: [ Ссылка ]
First degree heart block is an abnormality in the electrical conduction of the heart noted on the ECG, the recording of the electrical activity of the heart. It is not a block in the blood vessels of the heart which we are more familiar with. The waves on an ECG are P, QRS complex and the T wave.
![](https://s2.save4k.ru/pic/xu8IMWdW0pY/mqdefault.jpg)