A serious condition also called Stokes-Adams disease; impulses from the heart’s upper chambers (the atria) are completely blocked from reaching the heart’s lower chambers (the ventricles). To make up for this, the ventricles use their own “backup” pacemaker with its slower rate
Used to describe a common heart defect with four components (Fallot’s Tetralogy)
A condition where there is a narrowing in the blood flow from the right ventricle to the lungs, as a consequence of thick muscle underneath the pulmonary valve and a small pulmonary valve. There is also a VSD (hole between the pumping chambers) which causes the oxygen level in the blood to drop.