FALLOPIAN TUBE PROLAPSE FOLLOWING HYSTERECTOMY

Objective To investigate the clinical diagnosis, treatment, and prevention of fallopian tube prolapse (FTP) after hysterectomy.Methods A total of 7949 patients received hysterectomy from January 1983 to August 2005 in Peking Union Medical College Hospital, and 9 cases (including 1 case from other hospital) of FTP after hysterectomy were involved during this period.All of them were diagnosed according to pathological results and were followed up.The symptoms, diagnosis, and treatment of the FTP patients were analyzed retrospectively.Results The incidence of FTP after hysterectomy was 0.1% (8/7949), with the incidence of FTP after trans- abdominal hysterectomy being 0.06% (4/6229), after trans-vaginal hysterectomy being 0.5% (4/780), after laparoscopic assistant vaginal hysterectomy being 0 (0/940).There was no symptom in 3 cases.The pelvic examination revealed the typical prolapsed fimbrial end of a fallopian tube in 3 cases and the other 6 cases revealed red granulation tissue.All of them were excised vaginally and cauterized.The results were proved by pathological examination.No recurrence was reported during follow-up.Conclusions FTP is a rare complication after hysterectomy.The prognosis is well after proper diagnosis and treatment.Fixation of accessories onto the pelvic wall and complete peritonealization at the time of hysterectomy are the most important methods to prevent FTP after hysterectomy.

COMBINED EFFECT OF MODIFIED ZEOLITE 13X AND β-NUCLEATING AGENT ON IMPROVING β-CRYSTAL CONTENT AND TOUGHENING POLYPROPYLENE RANDOM COPOLYMER

Although addition of β-NUCLEATING agent directly into homo-polypropylene(PPH) is a useful method to improve β-CRYSTAL content and toughen PPH, polypropylene random copolymer(PPR) makes this method powerless due to its random structure and low crystallinity. In this study, the-nucleated PPR with high β-CRYSTAL content was prepared by a novel high effective β-NUCLEATING system which consists of-nucleation agent(TMB-5) and modified zeolite 13X(M13X). It was found that M13X and TMB-5 had a synergistic influence on improving β-CRYSTAL content and toughening PPR. The content of β-CRYSTAL in PPR/M13X/TMB-5 was significantly larger than the sum of that in PPR/M13X and PPR/TMB-5. Besides,fracture behavior, phase morphology and relaxation of matrix chain segments were also investigated. The results showed that M13X and TMB-5 improved the mobility of amorphous chain segments at low temperature and contributed to much energy dissipation. This work provides a powerful method to modify PPR.

Pathogenetic gene changes of eutopic endometrium in patients with ovarian endometriosis

To the Editor:Endometriosis refers to the endometrial tissue (interstitial substance and gland) with growth function occurring in the uterine lining of uterine cavity and the places outside myometrium.It often leads to pain,infertility,nodules or masses and other symptoms and signs,and thus,brings a heavy burden on individuals and society.Traditional blood reflux theory,immune theory,inflammatory theory,hormone theory,etc.,cannot fully elucidate the pathogenesis of endometriosis.

Establishment of endometriotic models: the past and future

Endometriosis is a prevalent chronic disease that affects approximately 6%to 10%of reproductive-aged women.Although numerous researchers have endeavored to explore the etiology of endometriosis over a century,its etiology still remains an enigma.The exploration of pathophysiologic mechanism and novel therapy for endometriosis depends on ideal endometriotic models.In the previous decade,various endometriotic models have been established;therefore,we made a conclusion for available information on these models.This review summarized the common experimental models used in endometriotic studies,including their origins,characteristics,applications,and limitations.Endometriotic models played an important role in studying etiologies and novel treatments of endometriosis during the last decades.Among them,animal models and endometriotic cell lines were viewed as most common studying tools to explore the intrinsic entities of endometriosis.In addition,endometrial organoid also emerged and was regarded as an ideal studying tool for endometriosis research.Different research models collectively complement each other to advance the endometriosis research.The successful establishment of endometrial organoids means that organoids are expected to become an ideal model for studying endometriosis in the future.

Chinese Expert Consensus on Clinical Application of Female Contraceptive Methods

Unintended pregnancy is a global issue, with approximately 85,000,000 women around the world having unintended pregnancy annually. The contents of clinical application of women’s contraceptive methods are very wide, involving multiple areas. This consensus deeply discusses the specific contraceptive needs at different statuses, combined with gynecological diseases, postabortion contraception, and postpartum family planning, ensuring the correct use of contraceptive methods under the corresponding status. The top priority of the consensus is the specific contraception consensus section for women combined with gynecological diseases because medical treatment effect as well as side effects should be weighed carefully. The consensus is to make high-efficiency and individual contraceptive strategy for different groups based on multidisciplinary (gynecology, obstetrics, and family planning) and multidimensional aspects, which can provide uniform guidance for medical and health organizations under the condition as relevant global guidance or consensus is still lacking.