Results of Endoluminal Occlusion of the Inferior Vena Cava During Radical Nephrectomy and Thrombectomy

Abstract

BackgroundThe surgical management of renal tumours with thrombi in the inferior vena cava (IVC) has become the gold standard treatment. ObjectiveTo evaluate endoluminal occlusion of the IVC during radical nephrectomy with either retrohepatic (level II) or suprahepatic (level III) caval tumour thrombus. Design, setting, and participantsFrom January 2000 to October 2007, 28 consecutive patients with renal cell carcinoma presenting a thrombus level II or III were treated with endoluminal occlusion of the free IVC cranial. Surgical procedureThe occlusion balloon was positioned under transesophageal echography (TEE) control through a cavotomy performed at the level of the renal vein ostium. Thrombectomy and radical nephrectomy were then performed. MeasurementsOperative time, perioperative bleeding, and pre- and postoperative complications were assessed. Overall patient survival time, disease-free survival, and development of metastasis were assessed. Results and limitationsCaval thrombectomy was performed successfully in all patients. IVC replacement with an expanded polytetrafluoroethylene graft or patch closure after lateral cavectomy was performed in 10 and 4 patients, respectively. Average operative time was 160min (range: 120–210). There was no perioperative mortality. The complications were one splenectomy and one early thrombosis of the IVC. Mean length of follow-up was 22.1 mo (range: 3–90). There was no local or IVC tumour recurrence. Cause-specific death and metastasis occurred in six (21.4%) and nine patients (32.1%), respectively. Thirteen patients (46.4%) are disease-free. ConclusionsEndoluminal occlusion of the IVC with TEE monitoring for level II and III thrombus avoided a suprahepatic or subdiaphragmatic approach of the IVC. Segmental resection and reconstruction of the IVC could also be performed in case of adherent thrombi.