ovarian pregnancy การใช้

• Up to 1845, about 80 cases of ovarian pregnancy were proposed.
• An ovarian pregnancy is differentiated from a tubal pregnancy by the Spiegelberg criteria.
• An untreated ovarian pregnancy causes potentially fatal intraabdominal bleeding and thus may become a medical emergency.
• "' Ovarian pregnancy "'refers to an ectopic pregnancy that is located in the ovary.
• Ovarian pregnancies have been successfully treated with methotrexate since it was introduced in the management of ectopic pregnancy in 1988.
• An ovarian pregnancy can be mistaken for a tubal pregnancy or a hemorrhagic ovarian cyst or corpus luteum prior to surgery.
• With Mayer's 1845 denial that ovarian pregnancy could exist, physicians began taking more care in their descriptions and analysis of cases.
• An ovarian pregnancy can develop together with a normal intrauterine pregnancy; such a heterotopic pregnancy will call for expert management as not to endanger the intrauterine pregnancy.
• In 1899, Catharine van Tussenbroek finally settled the question of the existence of ovarian pregnancy, by providing the first accurate clinical and histological description of a case.
• Sometimes, only the presence of trophoblastic tissue during the histologic examination of material of a bleeding ovarian cyst shows that an ovarian pregnancy was the cause of the bleeding.
• Ovarian pregnancies are rare : the vast majority of ectopic pregnancies occur in the fallopian tube; only about 0.15-3 % of ectopics occur in the ovary.
• The etiology of ovarian pregnancy is unknown, specifically as the usual causative factors  pelvic inflammatory disease and pelvic surgery  implicated in tubal ectopic pregnancy seem to be uninvolved.
• Ovarian pregnancies rarely go longer than 4 weeks; nevertheless, there is the possibility that the trophoblast finds further support outside the ovary and thus may affect the tube and other organs.
• An ovarian pregnancy is usually understood to begin when a mature egg cell is not expelled or picked up from its follicle and a sperm enters the follicle and fertilizes the egg, giving rise to an intrafollicular pregnancy.
• Van Tussenbroek settled the question of the existence of ovarian pregnancy with her report finding that the ovary and tube on the right side were normal, that sac upon the ovary contained an embryo, that the gestation-sac was connected via a cord, and that the sac had folds of lutein tissue.