Overview
Abnormal connection of hepatic veins to the atrium, often discussed in context with pulmonary venous anomalies, involves anomalous drainage pathways that can lead to hemodynamic complications and increased mortality if not addressed 1.Diagnosis
Echocardiography: Essential for measuring individual pulmonary vein, vertical vein, and pulmonary venous confluence diameters 1.
Doppler Flowmetry: Useful for assessing flow velocities in superior and inferior vena cava, which may exhibit delayed peak systolic waves indicative of anomalous connections 2.
Comparison with Normals: Flow patterns in SVC and IVC can be compared with those of normal subjects and patients with other cardiac anomalies to aid diagnosis 2.Management
Surgical Repair: Recommended for addressing anatomical anomalies and preventing complications such as pulmonary vein stenosis 1.
Early Intervention: Early surgical intervention may improve outcomes, particularly in pediatric populations 1.Special Populations
Pediatrics: Mortality rates are notably higher in infants with smaller pulmonary vein diameters, emphasizing the need for early and precise surgical intervention 1.Key Recommendations
Preoperative assessment of individual pulmonary vein diameters is crucial for predicting outcomes and guiding surgical timing (Evidence: Moderate 1).
Utilize Doppler flowmetry to identify abnormal flow patterns in SVC and IVC as indicative of anomalous pulmonary vein connections (Evidence: Moderate 2).
Prioritize early surgical repair to mitigate risks associated with pulmonary vein stenosis and improve survival rates in affected infants (Evidence: Moderate 1).References
1 Jenkins KJ, Sanders SP, Orav EJ, Coleman EA, Mayer JE, Colan SD. Individual pulmonary vein size and survival in infants with totally anomalous pulmonary venous connection. Journal of the American College of Cardiology 1993. link90835-o)
2 Matsuo S, Hayano M, Inoue J, Oku Y, Utsunomiya T, Koga H et al.. Superior and inferior vena cava flow velocity in patients with anomalous pulmonary vein connection. Japanese heart journal 1982. link