…Adenosine does not typically affect conduction in normal accessory pathways. However, conduction may be blocked in unusual accessory pathways that possess long conduction times or…

…pre excited atrial fibrillation (i.e. atrial fibrillation with impulses conducted via an accessory pathway [see Wolff Parkinson White Syndrome]); blocking AV node conduction may…

…AVNRT should not be confused with AVRT, which is the result of pre excitation (accessory pathway). AVNRT is caused by reentry in the atrioventricular (AV…

…interval is <0.12 seconds. Delta wave : depolarization of ventricular myocardium will start where the accessory pathway inserts into the ventricle, and the impulse will…

…Inability to speak in full sentences Marked work of breathing Use of accessory respiratory muscles or paradoxical abdominal breathing Impending muscle fatigue Respiratory rate above…

…or reduced air entry Silent or nearly silent chest pCO₂ Low Usually low Normal or raised Other Moderate work of breathing Accessory muscle use Cyanosis…

…branches of the facial nerve at the temple, the accessory nerve in the posterior triangle of the neck, and the superficial nerves of the forearm…

…Whether heart failure is present and whether left ventricular systolic function is depressed or preserved Whether hypotension is present Whether an accessory pathway is suspected…

…structural heart disease). AVNRT, AVRT (WPW syndrome) and other conditions involving an accessory pathway. Paroxysmal atrial fibrillation in patients with severe symptoms, provided that first…

…with first degree AV block. A shortened PR interval (<0,12 s) indicates pre excitation (presence of an accessory pathway). This is associated with a…