Spontaneous paroxysmal atrioventricular block in patients with positive tilt tests and negative electrophysiologic studies

Syncope Due to Idiopathic Paroxysmal Atrioventricular Block

“…Similar ECG features have been occasionally described in individual patients in clinical studies (9,11,12) and in a few case reports (13)(14)(15)(16); no follow-up is reported.…”

Paroxysmal atrioventricular block: clinical experience with 20 patients

“…It is relatively rare and has been previously described in association with bradycardia and tachycardia [3 -5], coronary angiography [6], vomiting [7], swallowing [8 -11], coughing [12,13], carotid sinus massage [14,15], and head-up tilt table testing [16,17]. The level of block is at either the AV node 6 or the His-Purkinje system [2,18].…”

Syncope and Idiopathic (Paroxysmal) AV Block

“…Similar ECG features have been occasionally described in individual patients in clinical studies 13 and in few case reports. [14][15][16][17] The original description 1 included 18 cases.…”