Journal of vascular and interventional radiology : JVIR
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J Vasc Interv Radiol · Oct 1999
Comparative Study Clinical TrialAccuracy and safety of carbon dioxide inferior vena cavography.
The purpose of this study was to assess the accuracy of carbon dioxide compared to iodinated contrast material for determining inferior vena cava (IVC) diameter prior to filter placement, and to assess the safety of CO2 when used for this purpose. ⋯ In most patients, CO2 vena cavography accurately evaluated IVC diameter prior to filter placement. In 3.3% of patients, the discrepancy in measurements between CO2 and iodinated contrast material could be clinically significant, depending on the type of filter placed. CO2 was less accurate than iodinated contrast material in identifying renal veins. Although CO2 vena cavography is safe in the majority of patients, it should be used with caution in patients with pulmonary hypertension.
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J Vasc Interv Radiol · Oct 1999
Clinical TrialManagement of chylothorax by percutaneous catheterization and embolization of the thoracic duct: prospective trial.
To prospectively assess the efficacy of percutaneous transabdominal thoracic duct catheterization and embolization in the management of patients with high-output chylothoracic effusions. ⋯ Catheterization of the thoracic duct was possible in all patients who had patent major retroperitoneal lymphatic trunks. Thoracic duct embolization was curative in patients with demonstrable duct leakage. Previous abdominal surgery, aortic dissection, and lymphangioleiomyomatosis can lead to silent occlusion of retroperitoneal lymphatic trunks. Percutaneous thoracic duct catheterization and embolization is safe and can replace surgical ligation in some patients.