Table 4.

12-lead ECG parameters

Rhythm	Sinus rhythm Auricular tachycardia Atrial fibrillation Common atrial flutter Uncommon atrial flutter Nodal rhythm Atrial ectopics Ventricular ectopics Atrial paced rhythm Ventricular paced rhythm with sinusal activity Ventricular paced rhythm with atrial fibrillation Atrial and ventricular paced rhythm
Heart rate
P wave	P duration Sinus P morphology Pulmonary P morphology Interatrial block
PQ time
Atrioventricular (AV) block	Not present First-degree AV block Second-degree AV block, Mobitz I Second-degree AV block, Mobitz II 2:1 AV block Third-degree or complete AV block
QRS duration
QRS axis
RR time
QT time
QT corrected time
Brugada pattern	Not present Type I Type II Type III
Early repolarisation pattern	Not present Inferior Lateral Inferior and lateral
Bundle branch configuration	Not present Complete left bundle branch block Complete right bundle branch block Incomplete left bundle branch block Incomplete right bundle branch block
Intraventricular conduction disturbances
Fascicular block configuration	Not present Left anterior fascicular block Left posterior fascicular block
Notch QRS presence
Left ventricular hypertrophy
Delta waves presence
Repolarisation changes of digitalis
Pathological Q-waves presence and position
Significant ST elevation
Significant ST depression
Negative T-waves presence and position