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).
An anticholinergic agent is a substance that blocks the neurotransmitter acetylcholine in the central and the peripheral nervous system.Anticholinergics inhibit parasympathetic nerve impulses by selectively blocking the binding of the neurotransmitter acetylcholine to its receptor in nerve cells.hen a significant amount of an anticholinergic is taken into the body, a toxic reaction known as acute anticholinergic syndrome may result. This may happen accidentally or intentionally as a consequence of recreational drug use.