How is Takayasus Arteritis Diagnosed?
Making the diagnosis of Takayasu’s arteritis can be extremely difficult. Unfortunately it is very common for the disease to smoulder in the walls of large blood vessels for years, causing only non-specific symptoms associated with the systemic phase of the illness (or no symptoms), until a major complication results. These major complications may include dilation of the aorta with “stretching” of the aortic valve in the heart; critically reduced blood flow to an arm or leg; a stroke caused by high blood pressure in vessels of the brain, and many others. Once the diagnosis is suspected, it is usually confirmed by a radiographic procedure such as an angiogram or a magnetic resonance imaging study demonstrating significant large artery disease consistent with Takayasu’s. In some cases in which blood vessel damage is so severe as to necessitate surgery to repair the aortic valve, the aorta, or some other large blood vessel, physicians are able to make unequivocal diagnoses by looking at ti