Essential criteria for TOF includes all except
The four components of the tetralogy of Fallot are malaligned VSD, obstruction to RV outflow, aoic override of the VSD, and RV hyperophy due to the RV's response to aoic pressure the large VSD. ( Harrison&;s principle of internal medicine,18th edition,pg no. 1926 )
Valvular stenosis
Infundibular stenosis
Over riding of aoa
RVH
C.V.S