Moyamoya disease is a rare blood vessel (vascular) disorder in which a ring of blood vessels at the base of your brain (the circle of Willis) and the uppermost (distal) segments of the arteries supplying the brain progressively narrow, causing blood flow to your brain to become reduced.ppointments at Mayo Clinic Mayo Clinic offers appointments in Arizona, Florida and Minnesota and at Mayo Clinic Health System locations.
Antithrombotic An antithrombotic agent is a drug that reduces the formation of blood clots ( thrombi). Antithrombotics can be used therapeutically for prevention ( primary prevention, secondary prevention) or treatment of a dangerous blood clot (acute thrombus).
Definition. 1  Antiangiogenesis therapy is one of two types of drugs in a new class of medicines that restores health by controlling blood vessel growth. The other medication is called pro-angiogenic therapy. 2  Antiangiogenic therapy inhibits the growth of new blood vessels. Because new blood vessel growth plays a critical role in many disease conditions, including disorders that cause blindness, arthritis, and cancer, angiogenesis inhibition is a common denominator approach to treating these diseases.