A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al., Principles of Neurology, 6th ed, pp367-9)
Also Known As:
Fainting; Micturition Syncope; Syncopes; Drop Attack; Syncopal Episode; Syncopal Vertigo; Syncope, Cardiogenic; Syncope, Carotid Sinus; Syncope, Convulsive; Syncope, Deglutitional; Syncope, Effort; Syncope, Hyperventilation; Syncope, Micturition; Syncope, Situational; Syncope, Stokes-Adams; Syncope, Tussive; Attack, Drop; Cardiogenic Syncope; Cardiogenic Syncopes; Carotid Sinus Syncope; Carotid Sinus Syncopes; Convulsive Syncope; Convulsive Syncopes; Deglutitional Syncope; Deglutitional Syncopes; Drop Attacks; Effort Syncope; Effort Syncopes; Episode, Syncopal; Hyperventilation Syncope; Hyperventilation Syncopes; Micturition Syncopes; Postural Syncope; Postural Syncopes; Presyncopes; Situational Syncope; Situational Syncopes; Stokes-Adams Syncope; Stokes-Adams Syncopes; Syncopal Episodes; Syncope, Stokes Adams; Syncopes, Cardiogenic; Syncopes, Carotid Sinus; Syncopes, Convulsive; Syncopes, Deglutitional; Syncopes, Effort; Syncopes, Hyperventilation; Syncopes, Micturition; Syncopes, Postural; Syncopes, Situational; Syncopes, Stokes-Adams; Syncopes, Tussive; Tussive Syncope; Tussive Syncopes; Vertigo, Syncopal; Vertigos, Syncopal; Presyncope; Syncope, Postural