Perioperative and Oncologic Outcomes of Nephrectomy and Caval Thrombectomy Using Extracorporeal Circulation and Deep Hypothermic Circulatory Arrest for Renal Cell Carcinoma Invading the Supradiaphragmatic Inferior Vena Cava and/or Right Atrium

Abstract

BackgroundRadical nephrectomy (RN) and caval thrombectomy (CT) for renal cell carcinoma, with extracorporeal circulation (ECC) and deep hypothermic circulatory arrest (DHCA) is a challenging surgical approach. ObjectiveTo assess peri-operative and oncologic outcomes of renal cell carcinoma patients treated with RN and CT, using ECC and DHCA. Design, setting, and participantsWe retrospectively evaluated 46 patients who underwent RN and CT using ECC and DHCA. Surgical procedureAfter retroperitoneal nodal dissection and RN, a cardiopulmonary bypass was placed and DHCA achieved. A combined approach through the abdomen and the thorax was described. MeasurementsPerioperative and long-term survival outcomes were reported. Results and limitationsMedian operative time and length of hospital stay were 545min and 22 d. Overall, 33 patients (72%) did not require any additional interventional or surgical treatment. Thirty-day and 90-d mortality were 11% (5/46) and 15% (7/46). The 1-yr, 2-yr, and 3-yr cancer specific mortality (CSM)-free survival rates were 77%, 62%, and 56%, respectively. After stratification, according to metastatic status at diagnosis, CSM-free survival rates were significantly lower for cM1 patients compared with cM0 patients (1-yr 46% vs 93%, 2-yr 23% vs 81%, 3-yr 23% vs 73%, p<0.01). Our study is limited by its retrospective and uncomparative nature. ConclusionsRN with CT using ECC and DHCA is a challenging procedure which requires a dedicated multidisciplinary working team to minimise complications and maximise patients’ outcomes. Patient summaryPatients with kidney cancer and a thrombus within the inferior vena cava, which reaches above the diaphragm, can be treated with surgery. However, this kind of surgical treatment is challenging and requires a dedicated multidisciplinary team in order to accomplish the task.