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The role of deep hypothermic circulatory arrest in surgery for renal or adrenal tumor with vena cava thrombus: a single-institution experience.
Journal of Cardiothoracic Surgery 2018 July 6
BACKGROUND: The aim of this study was to review our experience in managing renal or adrenal tumors with level III or IV inferior vena cava thrombus by using deep hypothermic circulatory arrest (DHCA), and to evaluate survival outcomes.
METHODS: Between September 2004 and March 2016, we treated 33 patients with renal or adrenal malignancy tumor and thrombus extending into the inferior vena cava. Patients were identified according to radiographic records and operative findings. Clinicopathological and operative characteristics were recorded, and comparisons of clinical and operative characteristics through DHCA were performed. A Cox regression model was used to determine predictors of perioperative mortality.
RESULTS: Twenty-one out of 33 patients with level III (n = 15), level IV (n = 5), or level II (n = 1) renal or adrenal tumors were treated surgically through cardiopulmonary bypass (CPB) with DHCA, and 12 patients with level II or III tumors were treated surgically through normothermic CPB. Three complications were observed, and one death occurred perioperatively, owing to multiple organ failure. The overall perioperative mortality was 4.7%. There were significant differences in the clinicopathological characteristics, operative duration, estimated blood loss, transfusions and hospital stay depending on use of DHCA. Multivariate analysis indicated that the operative duration (OR, 3.78; P < 0.001), estimated blood loss (OR, 1.08; P = 0.02), and transfusion (OR, 2.13; P = 0.038) during/after surgery were positively associated with higher mortality and morbidity. DHCA failed to reach statistical significance (P = 0.378).
CONCLUSIONS: Use of CPB and DHCA to treat renal or adrenal tumors allows for complete tumor resection, especially at the T4 stage. Although it can cause physical damage, this technique does not increase operative risk and is a relatively safe approach.
METHODS: Between September 2004 and March 2016, we treated 33 patients with renal or adrenal malignancy tumor and thrombus extending into the inferior vena cava. Patients were identified according to radiographic records and operative findings. Clinicopathological and operative characteristics were recorded, and comparisons of clinical and operative characteristics through DHCA were performed. A Cox regression model was used to determine predictors of perioperative mortality.
RESULTS: Twenty-one out of 33 patients with level III (n = 15), level IV (n = 5), or level II (n = 1) renal or adrenal tumors were treated surgically through cardiopulmonary bypass (CPB) with DHCA, and 12 patients with level II or III tumors were treated surgically through normothermic CPB. Three complications were observed, and one death occurred perioperatively, owing to multiple organ failure. The overall perioperative mortality was 4.7%. There were significant differences in the clinicopathological characteristics, operative duration, estimated blood loss, transfusions and hospital stay depending on use of DHCA. Multivariate analysis indicated that the operative duration (OR, 3.78; P < 0.001), estimated blood loss (OR, 1.08; P = 0.02), and transfusion (OR, 2.13; P = 0.038) during/after surgery were positively associated with higher mortality and morbidity. DHCA failed to reach statistical significance (P = 0.378).
CONCLUSIONS: Use of CPB and DHCA to treat renal or adrenal tumors allows for complete tumor resection, especially at the T4 stage. Although it can cause physical damage, this technique does not increase operative risk and is a relatively safe approach.
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