What are the ECG characteristics of Atrial flutter?

Atrial flutter is a rapid and regular heart rhythm that originates from the atria. It is characterized by the following ECG characteristics:

- Flutter waves: These are sawtooth-shaped waves that replace the normal P waves. They are typically regular and have a rate of 250-350 bpm.

- Negative F waves: These are negative deflections that occur after the flutter waves. They are not always present.

- Absence of P waves: The flutter waves are usually so rapid that they obscure the normal P waves.

- Regular ventricular response: The ventricles usually respond to the flutter waves with a regular rhythm. The ventricular rate is typically 150-250 bpm.

Atrial flutter can be a sign of a serious underlying heart condition, such as congestive heart failure or valvular heart disease. It is important to see a doctor if you experience any symptoms of atrial flutter, such as palpitations, chest pain, or shortness of breath.