Metablic causes of transient LOC
Hypoglycemia
Hypoxia
Hyperventilation
Clinical characteristics of cardiac syncope (VT or AV block)
Male
Fewer than 3 episodeincreased age
+ tilt table response indicates susceptibility to
Neurollay mediated syncope
Techniques to increase sensitivity along with fall in specificity of tilt table testing
Longer tilt duration
Steeper tilt angle
Provocative agents (ntg, isoproterenol)
Use of provocation agents increase or decreases specificity?
Decreases