Metastatic neuroendocrine hepatic tumors: resection improves survival |
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Authors: | Musunuru Sandeepa Chen Herbert Rajpal Sharad Stephani Nicholas McDermott John C Holen Kyle Rikkers Layton F Weber Sharon M |
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Institution: | Department of Surgery, Radiology, and Medicine, University of Wisconsin, Madison 59792, USA. |
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Abstract: | BACKGROUND: The optimal treatment for hepatic metastases from neuroendocrine tumors remains controversial because of the often indolent nature of these tumors. We sought to determine the effect of 3 major treatment modalities including medical therapy, hepatic artery embolization, and surgical resection, ablation, or both in patients with liver-only neuroendocrine metastases, with the hypothesis that surgical treatment is associated with improvement in survival. DESIGN: Retrospective study. SETTING: Tertiary care center. PATIENTS: Patients with metastatic liver-only neuroendocrine tumors were identified from hospital records. INTERVENTIONS: Patients were subdivided into those receiving medical therapy, hepatic artery embolization, or surgical management. MAIN OUTCOME MEASURES: Effect of treatment on survival and palliation of symptoms was analyzed. RESULTS: From January 1996 through May 2004, 48 patients with liver-only neuroendocrine metastases were identified (median follow-up, 20 months), including 36 carcinoid and 12 islet cell tumors. Seventeen patients were treated conservatively, which consisted of octreotide (n = 7), observation (n = 6), or systemic chemotherapy (n = 4). Hepatic artery embolization was performed in 18 patients. Thirteen patients underwent surgical therapy, including anatomical liver resection (n = 6), ablation (n = 4), or combined resection and ablation (n = 3). No difference was noted in the percentage of liver involved with tumor between the 3 groups. An association of improved survival was noted in patients treated surgically, with a 3-year survival of 83% for patients treated by surgical resection, compared with 31% in patients treated with medical therapy or embolization (P = .01). No difference in palliation of symptoms was noted among the 3 treatment groups (P = .2). CONCLUSION: In patients with liver-only neuroendocrine metastases, surgical therapy using resection, ablation, or both is associated with improved survival. |
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