What causes Perimembranous VSD?
Perimembranous VSD is caused by failure of the endocardial cushions, the conotruncal ridges, and the muscular septum to fuse at a single point in space.
What would happen if there was a hole between the left and right ventricle?
This hole allows blood from the left ventricle to go back into the right ventricle instead of out of the heart through the aorta. When this happens, too much blood can enter the lungs and may cause problems over time.
How does VSD cause pulmonary hypertension?
Pulmonary hypertension. Increased blood flow to the lungs due to the VSD causes high blood pressure in the lung arteries (pulmonary hypertension), which can permanently damage them. This complication can cause reversal of blood flow through the hole (Eisenmenger syndrome).
How does VSD cause endocarditis?
Patients with congenital heart defects are especially prone to endocarditis. Blood moves at high velocity across defects such as VSD’s, stenotic or leaky valves, and PDA’s. This high velocity flow facilitates the sticking of the blood’s clotting elements to these defects.
Why does VSD cause shortness of breath?
Because the heart and lungs have to work harder, a baby with a ventricular septal defect will become short of breath, particularly with the exertion of feeding (which is the most exercise a baby does). This could lead to poor feeding and eventually to poor weight gain and growth.
What is the most common type of ventricular septal defect?
This type of ventricular septal defect also might be part of another heart defect called an atrioventricular septal defect (AVSD). This is a hole in the lower, muscular part of the ventricular septum and is the most common type of ventricular septal defect.
Is a VSD life threatening?
Ventricular septal defects (VSD) are usually considered non-life-threatening, usually closing spontaneously or causing symptoms of congestive heart failure, which can be surgically treated in time to save the patient’s life.
Is VSD a risk factor for endocarditis?
Background: Ventricular septal defect (VSD) is one of the most common congenital heart anomalies in childhood and there is an increasing prevalence of VSDs in the adult population. The long-term risk of infective endocarditis (IE) is of concern.
Why does VSD cause respiratory infections?
In the case of a large VSD, the extra blood flow can increase the pressure in the pulmonary arteries. These are the blood vessels leading from the heart to the lungs. Over time, this can cause more lung problems.