Right ventricular outflow tract obstruction natural history

The Natural History of Right Ventricular Outflow Obstruction
Among patients with moderate to severe pulmonic stenosis (PS), the gradient often progressively increases. In patients with mild PS the gradient often remains stable. The prognosis among patients with PS who have reached adulthood without right ventricular failure or symptoms is reported to be good with minimal risk of endocarditis, right ventricular failure or death.