Endometriosis: physiopathology and investigation lines (part two)

Sampson's menstrual reflux theory (1927) is widely accepted as an explanation of endometriosis physiopathology, it proposes five basic necessary processes to its development: adhesion, invasion, recruitment, angiogenesis and proliferation. Several factors and physiologic processes are necessary for the survival and growth of endometrial tissue. Clinical manifestations of these disease are: dysmenorrhoea, dyspareunia, and peritoneal adhesions, that with other findings reveal an inflammatory process that requires cytokines, macrophages, NK cells, lymphocytes and prostaglandins whose qualitative functions may be compromised or may contribute to the peripheral generation of estrogens. Angiogenesis benefits the development of these endometrial tissue foci and probably stimulates several vascular growth factors, and sexual steroids. Endocrine factors are capital for this entity, as is demonstrated by the presence of estrogen receptors in macrophages, fibroblasts and endometrium among others, as well as the clinical symptoms control trough the blockage of the hypothalamus-pituitary-ovary axis. Studies on the genetic and antioxidant factors have revealed key points that may be helpful in determining a proper diagnosis and treatment for endometriosis.     

Spontaneous uterine rupture in a patient with polyhydramnios as only risk factor. Case report, literature review and institutional experience

The uterine rupture is a catastrophic obstetric complication. The main risk factor is an antecedent of uterine surgery, usually caesarean. It is reported the case of a 39-years-old patient with 37 week-pregnancy and polyhydramnios, without surgical antecedents, whose was not in labor and developed complete rupture of the lateral face of the uterus, which was spontaneous, without previous uterine scar and with a unusual outcome.     

Análisis de los factores de influencia sobre el resultado de 500 ciclos de inseminación intrauterina homóloga

Objective

To evaluate the results and analyse different factors influencing pregnancy rate using homologous intrauterine insemination.

Subjects and methods

Retrospective analysis of 500 homologous intrauterine insemination cycles in 183 infertile couples. Only one insemination per stimulated ovarian cycle was performed in patients with: mild endometriosis, ovulatory factor, male subfertility or unexplained infertility. We studied female age, duration of infertility, stimulation protocol, number of cycle, number of preovulatory follicles, motile sperm count and endometrial thickness related to pregnancy rate.

Results

Pregnancy rate per couple was 24% and per intrauterine insemination 9%, 11% was multiple pregnancies. Best outcome has been got in women younger than 37 years (P=.048) and in cycles with more than one preovulatory follicle. Other studied factors did not have influence in homologous intrauterine insemination outcome.

Conclusions

Female age is a prognostic factor for homologous intrauterine insemination with poor outcome in women older than 38 years. Cycles with more than one preovolatory follicle have better outcome. No differences in pregnancy rate have been achieved with motile sperm count over 1.5 millions/0.3 ml.     

Spontaneous regression of a breast carcinoma: a case report

Spontaneous regression of malignant tumors is a rare event. It is defined as partial or total disappearance of a proven malignant tumor without adequate medical treatment. The causes of this phenomenon are various. Nevertheless, malignant tumors do regress occasionally for no apparent reason, as evidenced by many clinical observations. We report a case of a 68-year-old woman, who was presented with a several-month history of a painless firm lump, initially of 1 cm in diameter and growing to a large solid regular tumor of 2.5 x 2.5 cm in size, in the upper outer quadrant of her right breast. Preoperative histopathological diagnosis revealed ductal invasive carcinoma. Later on, while awaiting surgical treatment, she suffered an arm injury requiring a 1-month delay of surgery. After recovery, on the date of surgery the tumor disappeared, and, in addition, it was not found in tissue specimens obtained from quadrantectomy. After 78 months of follow-up there was no evidence of relapse. In this report, we discuss clinical and histopathological findings, patient management and possible mechanisms of cancer regression.     

Association of ovarian and uterine cancers with postmenopausal hormonal treatments

During hormone treatments for the relief of the symptoms of postmenopausal women a number of side effects may occur. Some may be due to the wrong choice of the steroids used for treatment or to the route of administration. However, the more important ones deserving much attention are the rare occurrences of malignancies of the uterus and ovaries. The risk for ovarian cancer, if it exists, is minimal and clinically irrelevant. Estrogen only treatments are used only in hysterectomized women. Continuous combined estrogen-progestin treatments have a very low risk of association with endometrial cancers compared with sequential regimens. Tibolone may be associated with a very small risk for endometrial cancers and thus must be properly monitored by transvaginal ultrasound. Breast cancer patients being treated with tamoxifen require careful attention to the endometrium to exclude a carcinoma. For the protection of the endometrium, a progestin-releasing intrauterine devise is an attractive choice. Raloxifene used for a long time to prevent osteoporosis is safe for the endometrium. None of the above-mentioned side effects is enough to prevent a physician from using hormone treatment in postmenopausal women if there are no past or current contraindications.