Decrease of Electrical Systole of Heart: A Review of more than 300 Patients

Table 3. Differential diagnosis between entities with a short PR interval(Less than 120 milliseconds).

ENTITY	PR interval length	QRS complex length	Corrected QT interval length
W.P.W	Short (delta wave)	Wide	Normal
L-G-L	Short	Normal	Normal
Mannheim	Short or normal	Wide or normal	Normal
Breijo Pattern	Short or very short	Normal	Short or very Short