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  • Title: [Head-upright tilt table test: a new method for diagnosis of vasovagal neurocardiogenic syncope].
    Author: Dvorák R, Kozák M, Semrád B.
    Journal: Cas Lek Cesk; 1996 Apr 03; 135(7):204-7. PubMed ID: 8681367.
    Abstract:
    The head upright tilt table test (HUT) has been unambiguously included into the screening algorithm of syncopes. The HUT is based on exposing patients to orthostatic stress. This easy, cheap and safe test makes it possible to diagnose neurally-mediated vasovagal syncope (NMS). The pathophysiology of the NMS is based on the hypercontractility of the myocardium, when with the body being orthostatic, the venous return to the heart is lower and then followed by protecting mechanism--vasodilatation and bradycardia--both controlled by the CNS. Nowadays there is a tendency to integrate examination schedules of the HUT and all possible types of responses have been defined.
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