Tilt-table test

1. is used to indentify cause of SENCOPE
2. we will identify cause of sencope: vasodepressor or cardioinhibitory
3. patient lay on table in the supin position
4. tilting the table maximum: 60-80degrees for 25-40minute
5. What is result? - Nothing? Lets repeat test with drugs which provoke sencope.
6. Which drugs we can use? - sublingual nitroglycerin, epinephrine, adenosine, mostly-isoproterenol
7. Role of isoproterenol: - induces a vasodepressor (decrease in heart rate and blood pressure)
8. Neurocardyogenic sencopes: Vasodepressor, Carboinhibitory, Mixed
9. What results can be?: Autonomic failure, Postural Tachycardia, Vasodepresor,
   
   RESPONSES
   

   
   

   a normal response is an early, slight drop in BP with a compensatory increase in HR mediated by the autonomic nervous system.

   
   
   

   With autonomic dysfunction, a progressive fall in BP is not counteracted by an increase in HR

   
   

   In postural tachycardia syndrome, an exaggerated increase in HR is seen

   
   
   

   Vasodepressor is a type of neurocardiogenic sencope. Pure vasodepressor response is a relatively sudden drop in BP without a marked change in HR

   
   

   cardioinhibitory is also neurocadiogenic sencope. Cardioinhibitory response shows a sudden decrease in HR without a change in BP

   
   

   A mixed response shows decreases in both HR and BP.(also neurocardiogenic sencope)