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Radiofrequency wire 'power wire' recanalization of calcified chronically occluded inferior vena cava
Abhijit Salaskar1, Michael Ferra1, Harish Narayanan1
1Interventional Radiology Department, George Washington University Hospital, Washington, DC USA.
Background:
Radiofrequency (RF) wire recanalization of short segments of central venous obstruction has been considered safe; however its use for recanalization of long segments of inferior vena cava (IVC) has not been reported.
Case Presentation:
A 55-year-old female with recurrent massive hematemesis was found to have systemic venous upper esophageal varices on endoscopy and an extensive chronic IVC occlusion on CT. Using both a percutaneous transhepatic and transfemoral approach IVC recanalization was performed. A snare was advanced to the cavo-atrial junction via transhepatic venous access. From the groin utilizing RF wire steerable guide sheaths, endovascular reconstruction of the IVC was performed. Post recanalization venography demonstrated patent stented IVC and marked decrease in the intraabdominal-pelvic collaterals. No recurrence of hematemesis was noted. After 6 months, patient remained asymptomatic and had functioning right femoral arteriovenous hemodialysis graft.
Conclusions:
Using appropriate techniques, Power wire recanalization of long occlusive segments of IVC can be safe and effective.