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Pulmonary sequestration complicated by anomalies of pulmonary venous return
Insights
Congenital lung sequestration can present with associated pulmonary venous drainage anomalies, such as scimitar syndrome. Careful preoperative evaluation is crucial to identify these anomalies and prevent fatal complications.
Area of Science:
- Pediatric Surgery
- Thoracic Surgery
- Congenital Anomalies
Background:
- Congenital lung sequestration is a rare condition involving non-functional lung tissue.
- Pulmonary venous drainage anomalies can occur concurrently with lung sequestration.
- Scimitar syndrome is a specific anomaly characterized by abnormal venous return.
Purpose of the Study:
- To investigate the incidence and impact of pulmonary venous drainage anomalies in children with lung sequestration.
- To highlight the importance of preoperative diagnosis of these anomalies.
Main Methods:
- Retrospective review of 12 children operated for lung sequestration.
- Analysis of surgical findings and patient outcomes.
- Correlation of pulmonary venous drainage patterns with clinical presentation and complications.
Main Results:
- Five of 12 children (41.7%) had pulmonary venous drainage anomalies.
- Two children had scimitar syndrome, with one experiencing fatal right lung infarction after vein ligation.
- Three patients had less severe venous drainage anomalies.
Conclusions:
- Pulmonary venous drainage anomalies are common in pediatric lung sequestration.
- Failure to recognize anomalous venous drainage can lead to severe morbidity and mortality.
- Thorough preoperative assessment of pulmonary venous drainage is essential for patients with lung sequestration.
Abstract:
Five anomalies of pulmonary venous drainage were seen among 12 children operated for lung sequestration. In two children, venous drainage from the sequestrated lobe and the rest of the right lung was via a single channel into the inferior vena cava ("scimitar syndrome"). In one of these children, the sequestrated lobe was resected and repair of the scimitar syndrome was delayed; in the second patient, the anomalous pulmonary venous drainage was not recognized preoperatively and the vein was ligated, resulting in acute hemorrhagic infarction of the right lung and death of the patient. Three patients had less severe anomalies of pulmonary venous drainage. We recommend very careful evaluation of patients with lung sequestration with special reference to pulmonary venous drainage.