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Chylothorax following cardiac surgery caused by unusual lymphatic anatomy
Pradeep Narayan1, Natasha Rahaman, Thomas F Molnar
1Bristol Heart Institute, Bristol Royal Infirmary, Bristol BS2 8HW, United Kingdom.
Insights
A rare cause of chylothorax from aberrant thymic lymphatic channels during left internal thoracic artery harvest is presented. Early surgical intervention, including ligation and shunt placement, successfully managed this high-volume chyle leak.
Area of Science:
- Thoracic surgery
- Vascular anatomy
- Lymphatic system disorders
Background:
- Injury to the thoracic duct during left internal thoracic artery harvest can cause chylothorax.
- Aberrant lymphatic channels in the anterior mediastinum are not commonly recognized as a source of chyle leakage.
Observation:
- A case of significant chyle leakage was observed.
- The leakage originated from an aberrant thymic collateral lymphatic channel in the anterior mediastinum, distinct from the thoracic duct.
Findings:
- The aberrant lymphatic channel was successfully identified and ligated.
- A pleuro-peritoneal shunt was inserted to manage the chyle effusion.
Implications:
- This case highlights a previously undescribed cause of chylothorax.
- Early surgical exploration and targeted ligation are effective management strategies for this specific condition.
- Understanding aberrant thymic lymphatic anatomy is crucial for thoracic surgeons.
Abstract:
Chylothorax due to injury to the thoracic duct and lymphatic channels during left internal thoracic artery harvest is well described. However, high volume leakage of chyle due to disruption of aberrant thymic collateral lymphatic channel in the anterior mediastinum has not been described previously. We describe such a case which was managed by early surgical exploration, ligation of the aberrant duct, and insertion of a pleuro-peritoneal shunt.
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