Syncope, types, management

 It is the sudden and temporary loss of consciousness due to inadequate cerebral flow. 
Types:- 
Emotional syncope
This is due to emotional fainting, Decreased cardiac output, decreased cerebral flow, suppression of myocardium, severe vasodilation caused by the parasympathetic division of the autonomic nervous system. 
Postural Syncope
This is due to prolonged standing causes pooling of blood in lower limbs. 
Micturition Syncope
This is due to low blood pressure while standing or orthostatic hypotension causes micturition syncope. 
Neurocardiogenic Syncope
This is due to cardiac arrhythmia, decrease in cardiac output, bradycardia, and heart block. 
Effort Syncope
This is due to stenosis of semilunar valves, increased cardiac output because of the exercise strain. 
Cough Syncope
This is due to increased intra- thoracic pressure, decreased venous return cardiac output results in fainting. 
Carotid Sinus Syncope
This is due to tight collar dress cause decrease in heart rate and vasodilation. 

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