Atrial flutter wave

What is an F wave?

The T wave (also known as the terminal QRS wave) is the terminal portion of the QRST wave complex. It belongs to the ST segment of the ECG and is one of the five waves that make up the complex called the ST segment. The P wave follows the T wave and forms the final part of the PQ interval. This interval is the transition interval between the QRS complex (which is the coronary venous complex) and the PR segment, which refers to the part of the cardiac cycle located from the end point of the QRS complex to the end point of the ST segment. The QRS complex is responsible for ventricular contraction, and the ST segment reflects the complete completion of cardiac contraction and reflects the electrical activity of both the left and right atrium.

The F wave occurs in the following cases:

1. Crest epilepsy; 2. Acute anterior myocardial infarction; 3. Postoperative period; 4. Early ventricular repolarization syndrome in children (usually lower ones). 5. Left atrium overload 6. Diabetes, hypothyroidism, also occurs with mitral valve defects