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Dashkevich, Alexey; Bagaev, Erik; Hagl, Christian; Pichlmaier, Maximilian; Luehr, Maximilian; Dossow, Vera von; Stief, Christian; Brenner, Paolo; Staehler, Michael (2016): Long-term outcomes after resection of Stage IV cavoatrial tumour extension using deep hypothermic circulatory arrest. In: European Journal of Cardio-thoracic Surgery, Vol. 50, No. 5: pp. 892-897
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OBJECTIVES: Renal neoplasms frequently expand into renal veins and inferior vena cava from the early stages of the disease. In this study, we set out to define the long-term outcomes of patients with Stage IV tumorous cavoatrial extension, undergoing radical nephrectomy with excision of cavoatrial extension in deep hypothermic circulatory arrest (DHCA). METHODS: Thirty-five patients with Stage IV cavoatrial extension of renal cell carcinoma underwent radical nephrectomy combined with en bloc excision of cavoatrial tumour-thrombus extension, performed in DHCA. The preoperative staging of the tumour and assessment of the intravascular position of the tumour were performed using standard imaging techniques, including computed tomography angiography, magnetic resonance imaging and echocardiography. Patient data were collected in the patient data bank and analysed retrospectively. RESULTS: In this study cohort, we demonstrate acceptable long-term results (the mean overall survival of 4.9 +/- 1.0 years and the 5-year survival rate of 40%) and outline several clear predictors for postoperative long-term survival of the patients. Preoperative evidence of remote tumour metastases and tumourous lymph node involvement conversely predicts inferior postoperative survival. However, a high local postoperative tumour recurrence rate does not limit patient survival in this group. CONCLUSIONS: The data provide evidence for perioperative safety and acceptable long-term results of radical nephrectomy with excision of cavoatrial extension in DHCA in patients with Stage IV cavoatrial extension of renal neoplasm. Thus, this radical surgical procedure can provide effective long-term palliation in the absence of evident metastatic disease.