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Thoracic Duct Intervention for Chylothorax — SCE Palliative Medicine MCQ

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HardRespiratory SymptomsThoracic Duct Intervention for ChylothoraxSCE Palliative Medicine

A 55‑year‑old woman with advanced cervical cancer develops bilateral chylous pleural effusions due to thoracic duct obstruction. Drainage confirms chylous fluid with triglycerides of 3.2 mmol/L. After failure of dietary modification and octreotide, what definitive intervention should be considered?

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Correct answer: B — Thoracic duct embolisation or ligation (interventional radiology or surgical)

In cases of chylothorax refractory to conservative management—including diet modifications and octreotide—definitive anatomical treatment is required. NICE interventional guidance HTG666 (2023) recommends percutaneous thoracic duct embolisation or, if necessary, surgical ligation for persistent high‑volume chyle leaks in specialist centres. Neither pleurodesis alone nor supportive measures address the underlying duct obstruction. Antibiotics, albumin, or radiation do not directly correct the chyle leak pathophysiology and thus are not definitive.

Reference: NICE HealthTech Guidance HTG666 ‘Percutaneous thoracic duct embolisation for persistent chyle leak’, 2023 – recommendations and procedure sections, NICE