The reference line was set as the summit of QRS for the surface ECG, and electrical delay was measured in milliseconds between the reference line on the surface ECG and the onset on the bipolar intracardiac
electrogram. We collected the activation potential (reflected by the activation time) point by point when pulling back the lead and determined that the purple area was the latest activated region while the white one was the earliest.
Berte et al., "Bipolar
electrograms characteristics at the left atrial-pulmonary vein junction: toward a new algorithm for automated verification of pulmonary vein isolation," Heart Rhythm, vol.
Cardiac resynchronization therapy optimization using intracardiac
electrogram method
If the patient presented in atrial fibrillation, complex fractional atrial
electrograms are also mapped during the anatomical mapping of the left atrium.
In the study conducted by Douglas, Berger, Nezo, Shinnichi, Iga, Tomie, Hosaka, Takashi, Nakamura and Seiro [19] on schizophrenic patients and normal persons by
Electrogram, two results were found after measuring mutation reaction speed: A: there is a reaction shortage to information processing in schizophrenic patients.
With event-triggered intracardiac
electrogram (IEGM) transmissions, the new Biotronik pacemaker series innovates advanced patient monitoring and allows physicians to receive an IEGM along with a notification if atrial fibrillation (AF) occurs.
A 5-French catheter electrode (Japan Lifeline, Tokyo, Japan) was inserted into the esophagus under the monitoring of an esophageal
electrogram and placed to ensure constant atrial capture with the lowest threshold.