Clinical Significance of Partial Anomalous Pulmonary Venous Connections (Isolated and Atrial Septal Defect Associated) Determined by Cardiovascular Magnetic Resonance

Background: Partial anomalous venous connections (PAPVC) are associated with left to right shunting and heart dilatation. Identification of PAPVC has increased widespread use cross-sectional imaging modalities. However, management strategies mostly based on expert opinion given the scarcity data from large series. We aimed define types significance isolated atrial septal defect (ASD) detected by cardiovascular magnetic resonance. Methods: retrospectively reviewed our resonance database 2002 2018 identify or ASD-associated cases. Results: A total 215 patients (median age 46 years; range, 6–83) were identified among 102 135 clinical studies. Of these, 104 111 an ASD. Anomalous connection upper pulmonary vein was most common single anomaly (99/215), but in group there more than veins (39 versus 34). The Qp/Qs significantly higher for (1.6 1.4 respectively; P =0.01) as ventricular end-diastolic volumes (113.7±30.9 90 [57–157] mL/m 2 , =0.004). In ASD group, sinus venosus ASDs (82%) right-sided PAPVCs while both left-sided anomalies seen secundum (18%). a substantial number (30 out 91) ASDs, complex involved vein; 5 ASD, only after closure. Conclusions: This series provides descriptive hemodynamic features PAPVCs. may cause significant shunt (Qp/Qs >1.5). might be missed before correction.