Cardiophile MD Archive

The funny current or pacemaker current is predominantly a feature of the sinoatrial node. It is also seen in atrioventricular node and the Purkinje fibres. It is a mixed sodium-potassium current which is inward and gets activated on hyperpolarization. The funny current is responsible for the spontaneous diastolic depolarization which ultimately leads to the automaticity [...]

Click on the images for a larger view Multifocal atrial tachycardia is defined as three or more different types of P waves occuring at a rate more than 100 per minute. In the second rhythm strip there is a pause before the onset of sinus rhythm after the tachycardia terminates. This could be due to down regulation [...]