Are There Prognostic Factors Related to Recurrence in Pancreatic Endocrine Tumors?Casadei R. · Ricci C. · Pezzilli R. · Campana D. · Tomassetti P. · Calculli L. · Santini D. · D’Ambra M. · Minni F.
Aims: The aim of this study was to evaluate the rate, site, time of recurrence and prognostic factors related to the appearance of recurrences in patients affected by pancreatic endocrine tumors (PETs). Methods: Data from 67 consecutive patients with PETs who underwent R0 resection were analyzed. The prognostic factors considered were: gender, age, type of tumor, presence of symptoms, size of tumor, tumor node metastasis (TNM) stage, WHO classification and adjuvant therapy. Results: The recurrence rate was 24.6%, with a mean time of 7.3 ± 4.5 years. The majority were in the liver (75% of cases) and were rarely local (25%). Univariate analysis of the prognostic factors showed that the risk of recurrences is significantly higher in PETs in MEN-1 syndrome, in tumor size ≧4 cm, in the presence of liver metastases, in TNM stages III–IV and, finally, in PD-Cas and WD-Cas. Multivariate Cox regression analysis showed that only MEN-1 syndrome and the WHO classification were independent predictors of an increased risk of recurrence. Conclusions: Several prognostic factors were related to recurrences in PETs. MEN-1 syndrome and the WHO classification can be considered independent factors of an increased risk of recurrence.
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