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Long-Term Postoperative Outcomes of Sinus Venosus Defect
Mariama Touray1, Magalie Ladouceur2,3,4, Judith Bouchardy1,5
1Service of Cardiology, Heart and Vessel Department, Lausanne University Hospital, University of Lausanne, 1005 Lausanne, Switzerland.
Journal of Clinical Medicine
|July 28, 2026
Summary
Long-term follow-up is crucial for surgically treated sinus venosus defects (SVD), revealing a higher reoperation rate compared to atrial septal defects (ASD). Monitoring for reintervention and arrhythmias is essential after SVD surgery.
Area of Science:
- Cardiology
- Cardiac Surgery
- Congenital Heart Disease
Background:
- Surgery is the standard treatment for sinus venosus defect (SVD), but long-term outcome data are limited.
- This study compares long-term outcomes of surgically treated SVD with surgically and percutaneously treated secundum atrial septal defects (ASD).
Purpose of the Study:
- To evaluate the long-term outcomes of surgically treated sinus venosus defect (SVD) patients.
- To compare these outcomes with surgically and percutaneously treated secundum atrial septal defects (ASD).
Main Methods:
- Retrospective review of clinical, surgical, imaging, and invasive data from 209 patients across eight European centers.
- Comparison between three cohorts: surgically treated SVD (n=80), surgically treated secundum ASD (n=57), and percutaneously treated secundum ASD (n=72).
Main Results:
- Surgically treated SVD patients, often operated on in adulthood (median age 28.5 years), showed a higher reoperation rate than ASD cohorts (p=0.033).
- Reoperations in the SVD group occurred at a median of 28 years post-surgery. Pacemaker implantation and late atrial fibrillation prevalence were similar across groups.
- Surgically treated SVD had a higher prevalence of atrial flutter/tachycardia, requiring more electrophysiological studies compared to percutaneously treated ASD (p=0.013).
Conclusions:
- Long-term follow-up is essential for surgically treated sinus venosus defects (SVD).
- Monitoring is necessary to detect reintervention needs and potential arrhythmic complications after SVD repair.
