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)
Synkope
Syncopes — Fainting — Presyncope — Presyncopes — Syncopal Episode — Episode, Syncopal — Syncopal Episodes — Syncopal Vertigo — Vertigo, Syncopal — Vertigos, Syncopal — Syncope, Cardiogenic — Cardiogenic Syncope — Cardiogenic Syncopes — Syncopes, Cardiogenic — Syncope, Carotid Sinus — Carotid Sinus Syncope — Carotid Sinus Syncopes — Syncopes, Carotid Sinus — Syncope, Convulsive — Convulsive Syncope — Convulsive Syncopes — Syncopes, Convulsive — Syncope, Deglutitional — Deglutitional Syncope — Deglutitional Syncopes — Syncopes, Deglutitional — Syncope, Effort — Effort Syncope — Effort Syncopes — Syncopes, Effort — Syncope, Hyperventilation — Hyperventilation Syncope — Hyperventilation Syncopes — Syncopes, Hyperventilation — Syncope, Micturition — Micturition Syncope — Micturition Syncopes — Syncopes, Micturition — Syncope, Postural — Postural Syncope — Postural Syncopes — Syncopes, Postural — Syncope, Situational — Situational Syncope — Situational Syncopes — Syncopes, Situational — Syncope, Stokes-Adams — Stokes-Adams Syncope — Stokes-Adams Syncopes — Syncope, Stokes Adams — Syncopes, Stokes-Adams — Syncope, Tussive — Syncopes, Tussive — Tussive Syncope — Tussive Syncopes — Drop Attack — Attack, Drop — Drop Attacks