Unexpected ventricular tachyarrhythmias soon after cardiac surgery.
Explore the source record for details and available documents.
Adult↗
Biomedical subjects
A K Woelfel
Publications and source records attributed to A K Woelfel.
Management of atrial fibrillation and flutter. A reappraisal of digitalis therapy.
Explore the source record for details and available documents.
Atrial Fibrillation↗
Exercise-induced distal atrioventricular block.
Three patients with 1:1 atrioventricular (AV) conduction at rest developed fixed 2:1 or 3:1 AV block during treadmill exercise testing. Electrophysiologic study documented block distal to the AV node in all three patients, and suggested that the exercise-induced block occurred because of increased atrial rate and abnormal refractoriness of the His-Purkinje conduction system. The findings in these three patients suggest that high grade AV block appearing during exercise reflects conduction disease of the His-Purkinje system rather than of the AV node, even in the absence of bundle branch block. Patients with this diagnosis should be considered for permanent cardiac pacing.
Aged↗