<unk> –Adams syndrome or<unk>  is a periodic fainting spell in which there is intermittent complete heart block or other high-grade arrhythmia that results in loss of spontaneous circulation and inadequate blood flow to the brain. Subsequently named after two Irish physicians, Robert<unk>  (1791–1875) and William<unk>  (1804–1877), the first description of the syndrome is believed to have been published in 1717 by the Carniolan physician of Slovene descent Marko Gerbec. It is characterized by an abrupt decrease in cardiac output and loss of consciousness due to a transient arrhythmia; for example, bradycardia due to complete heart block.
Adams–Stokes syndrome
Hopkins syndrome
SUNCT syndrome
Michels Caskey syndrome
PHACE syndrome
Hennekam syndrome
Dressler syndrome
Wunderlich syndrome