Heart defects are the most common birth defect. This is a common heart defect in Newfoundlands involving defective heart valves. The cause of a congenital heart defect is often unknown. An autopsy revealed a previously undiagnosed congenital heart defect. Having a parent with a congenital heart defect is also a risk factor. He died as a result of a congenital heart defect. Hereditary cancers are primarily caused by an inherited genetic defect. The cause of this defect is a ventricular septal defect (VSD) and an overriding aorta. It is rarely caused by any serious eye defect. The temporary procedure is to create an atrial septal defect (ASD). This was caused by a simple circuit that had an inherent defect. Surgical repair of the iris defect is also possible. Internal shorts from manufacturing defect or physical damage can lead to spontaneous thermal runaway. Disease progression is usually accompanied by a progressive obstructive ventilatory defect. The prevalence of residual defect is low.