A systematic study of retrograde atrial activation sequence at commonly used electrode catheter recording sites in 8 patients without, and in 4 patients with AV nodal re entrant paroxysmal tachycardia was made. During right ventricular pacing, the retrograde atrial activation sequence was low septal right atrium - proximal coronary sinus - distal coronary sinus - high right atrium. During the episodes of paroxysmal tachycardia, a similar pattern was observed. This information should be helpful in the understanding of abnormal activation sequences in patients with paroxysmal supraventricular tachycardia in whom retrogradely conducting anomalous pathways are suspected.
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine