期刊
ARCHIVES OF SURGERY
卷 147, 期 9, 页码 820-827出版社
AMER MEDICAL ASSOC
DOI: 10.1001/archsurg.2012.1261
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- Intramural NIH HHS [Z99 DK999999, ZIA DK053200-19] Funding Source: Medline
Hypothesis: Lymph node metastases decrease survival in patients with pancreatic neuroendocrine tumors (pNETs). Design: Prospective database searches. Setting: National Institutes of Health (NIH) and Stanford University Hospital (SUH). Patients: A total of 326 patients underwent surgical exploration for pNETs at the NIH (n = 216) and SUH (n = 110). Main Outcome Measures: Overall survival, diseaserelated survival, and time to development of liver metastases. Results: Forty patients (12.3%) underwent enucleation and 305 (93.6%) underwent resection. Of the patients who underwent resection, 117 (35.9%) had partial pancreatectomy and 30 (9.2%) had a Whipple procedure. Forty-one patients also had liver resections, 21 had wedge resections, and 20 had lobectomies. Mean follow-up was 8.1 years (range, 0.3-28.6 years). The 10-year overall survival for patients with no metastases or lymph node metastases only was similar at 80%. As expected, patients with liver metastases had a significantly decreased 10-year survival of 30% (P < .001). The time to development of liver metastases was significantly reduced for patients with lymph node metastases alone compared with those with none (P < .001). For the NIH cohort with longer follow-up, disease-related survival was significantly different for those patients with no metastases, lymph node metastases alone, and liver metastases (P < .001). Extent of lymph node involvement in this subgroup showed that disease-related survival decreased as a function of the number of lymph nodes involved (P =. 004). Conclusions: As expected, liver metastases decrease survival of patients with pNETs. Patients with lymph node metastases alone have a shorter time to the development of liver metastases that is dependent on the number of lymph nodes involved. With sufficient long-term follow-up, lymph node metastases decrease diseaserelated survival. Careful evaluation of number and extent of lymph node involvement is warranted in all surgical procedures for pNETs.
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