Physical examination
During VT, the following may be observed:
Hypotension
Tachypnea
Signs of diminished perfusion, including a diminished level of consciousness, pallor, and diaphoresis
High jugular venous pressure
Cannon a waves (if the atria are in sinus rhythm)
Variation in intensity of first heart sound, caused by loss of atrioventricular (AV) synchrony
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After conversion, physical findings during normal sinus rhythm are related to any underlying structural heart disease.
VT can also result in sudden death. Patients in whom this occurs may first present with syncope.
See Clinical Presentation for more detail.