The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
SRJ is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and qualitative measure of the journal's impact.
La hemorragia digestiva baja masiva secundaria es una forma rara de presentación de un embarazo ectópico. Presentamos un caso intervenido en nuestro servicio en el que se encontró una implantación del embarazo en sigma, situación que no hemos encontrado en la bibliografía. Revisamos en la bibliografía la frecuencia, diagnóstico y tratamiento de esta entidad tan poco frecuente
Palabras clave:
Embarazo ectópico
Rectorragia masiva
Embarazo intestinal
Massive rectal bleeding is a rare manifestation of ectopic pregnancy. We present a case of a sigmoid ectopic pregnancy, an association which, to our knowledge, has not previously been reported in the literature. We review the literature dealing with the incidence, diagnosis and treatment of this rare entity.