Copyright © 1985 by the European Society of Cardiology.
© 1985 The European Society of Cardiology
Pre-operative sinus node function in adult patients with atrial septal defect (ostium secundum type)
Cattedra di Cardiologia dell'Università degli Studi e Divisione di Cardiologia degli Spedali Civili Brescia, Italy
Received 18 September 1984; revised 5 December 1984; .
G. Benedini M.D., Divisione di Cardiologia, Spedali Civili, P. le Spedali Civili n. 1,25100, Brescia, Italy.
Abstract
The authors studied, pre-operatively, the sinus node function in adult patients with secundum atrial septal defect and large left-right shunts, using Holter ECG and electrophysiological tests.
Sinus node electrophysiological tests were found abnormal in 17 out of 26 patients; on the contrary, Holter monitoring was always within normal limits.
The authors believe that concealed sinus node dysfunction existing before surgical correction may be a cause of early, acute, and reversible, post-operative sick sinus syndrome.
Key Words: Sinus node dysfunction atrial septal defect Holter ECG electrophysiological testing