Royal Children's Hospital: Aortic Stenosis - Description and treatment, including pictures. Aortic Stenosis - About.com: Explains what aortic stenosis is and looks at when it should be treated and what options there are. NHS Choices: Aortic Valve Replacement - Provides information on this surgical procedure. Includes details of why it is used, preparations, how the procedure is performed, risks, results and recovery. eMedicine Health - Consumer health resource center providing information on causes, symptoms, and treatment option of aortic aneurysms. MedlinePlus: Aortic Stenosis - Information about this disorder and its causes, risk factors and incidence. MedlinePlus: Aortic Insufficiency - A look at the condition and its alternative names, causes, incidence and risk factors.