Figure 22 : SV-ASD DEFECT WITH RUPVs FOR P 6 PATIENT
(Image Credits, Figure 16 – 22 : Dr.Vishal V. Bhende)
ECG findings
Patients’ electrocardiographic patterns were interpreted as normal sinus rhythm, low atrial rhythm, or junctional rhythm by two reviewers who were unaware of the patients’ type of surgical repair. Criteria for interpretation as low atrial rhythm included a change in the P-wave axis or a significantly shortened PR interval.
Sinus node dysfunction was defined as persistent sinus bradycardia (<50 bpm); ectopic atrial rhythm, junctional/nodal rhythm, or a wandering atrial pacemaker (<60 bpm); or pauses of more than 3 seconds. It was also diagnosed on the basis of electrophysiological evidence of sinus node dysfunction. New sinus node dysfunction was defined as sinus node dysfunction that appeared postoperatively (present at hospital dismissal or at a late follow-up) in cases in which sinus rhythm had been present preoperatively.