Suprarenal vena caval occlusion. Principles of operative management.
Retrohepatic occlusion of the inferior vena cava caused by tumor complicates complete resection and not infrequently is associated with life-threatening symptoms that accelerate the lethality of the underlying malignant process. This report summarizes our experience with caval thrombectomy and reconstruction that allowed complete removal of all gross tumor in seven patients with malignant occlusion of the retrohepatic inferior vena cava. Included in this group are five patients with renal cell carcinoma and extension of tumor into the retrohepatic vena cava. Three of these patients had extension of tumor thrombus into the right atrium. A sixth patient had recurrent right adrenal cortical carcinoma with tumor invasion of the vena cava and occlusion to the right atrium. Associated hepatic vein occlusion and secondary Budd-Chiari syndrome also was successfully managed in this patient. The final patient with occlusion of the entire suprarenal vena cava required caval reconstruction after resection of a primary leiomyosarcoma of the retrohepatic portion of the vena cava. Careful planning of the operative procedure, adequate exposure, complete mobilization of the retrohepatic vena cava, and control of the hepatic venous effluent will allow patients with retrohepatic vena caval occlusions to be managed with safety and success.