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World J Gastroenterol ; 19(47): 9012-9, 2013 Dec 21.
Artículo en Inglés | MEDLINE | ID: mdl-24379626

RESUMEN

AIM: To study the epidemiologic changes of gastroenteropancreatic neuroendocrine tumors (GEP-NET) in Germany, we analyzed two time periods 1976-1988 and 1998-2006. METHODS: We evaluated epidemiological data of GEP-NET from the former East German National Cancer Registry (DDR Krebsregister, 1976-1988) and its successor, the Joint Cancer Registry (GKR, 1998-2006), which was founded after German reunification. Due to a particularly substantial database the epidemiological data from the federal states of Mecklenburg-Western Pomerania, Saxony, Brandenburg and Thuringia, covering a population of more than 10.8 million people, were analyzed. Survival probabilities were calculated using life table analysis. In addition, GEP-NET patients were evaluated for one or more second (non-GEP-NET) primary malignancies. RESULTS: A total of 2821 GEP neuroendocrine neoplasms were identified in the two registries. The overall incidence increased significantly between 1976 and 2006 from 0.31 (per 100.000 inhabitants per year) to 2.27 for men and from 0.57 to 2.38 for women. In the later period studied (2004-2006), the small intestine was the most common site. Neuroendocrine (NE) neoplasms of the small intestine showed the largest absolute increase in incidence, while rectal NE neoplasms exhibited the greatest relative increase. Only the incidence of appendiceal NET in women showed little change between 1976 and 2006. Overall survival of patients varied for sex, tumor site and the two periods studied but improved significantly over time. Interestingly, about 20% of the GEP-NET patients developed one or more second malignancies. Their most common location was the gastrointestinal tract. GEP-NET patients without second malignancies fared better than those with one or more of them. CONCLUSION: The number of detected GEP-NET increased about 5-fold in Germany between 1976 and 2006. At the same time, their anatomic distribution changed, and the survival of GEP-NET patients improved significantly. Second malignancies are common and influence the overall survival of GEP-NET patients. Thus, GEP-NET warrant our attention as well as intensive research on their tumorigenesis.


Asunto(s)
Neoplasias Intestinales/epidemiología , Neoplasias Primarias Secundarias/epidemiología , Neoplasias Pancreáticas/epidemiología , Neoplasias Gástricas/epidemiología , Femenino , Alemania/epidemiología , Humanos , Incidencia , Neoplasias Intestinales/diagnóstico , Neoplasias Intestinales/mortalidad , Tablas de Vida , Masculino , Neoplasias Primarias Secundarias/diagnóstico , Neoplasias Primarias Secundarias/mortalidad , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/mortalidad , Pronóstico , Sistema de Registros , Distribución por Sexo , Factores Sexuales , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/mortalidad , Análisis de Supervivencia , Factores de Tiempo
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