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Hormonally mediated disturbance of angiogenesis in the human endometrium after exposure to intrauterine levonorgestrel.

BACKGROUND: The levonorgestrel intrauterine system (LNG-IUS) is a contraceptive device that is used for treatment of menorrhagia. The system induces inter-menstrual bleeding within the first few months after insertion. We hypothesized that this bleeding might be associated with a change in vascular development. METHODS: A randomized, controlled study was undertaken on 48 women. RESULTS: Hysterectomy specimens were obtained and immunocytochemistry was carried out with antibodies to CD31, alpha-smooth muscle actin and myosin. Stereological measurement of blood vessels was also undertaken. Most vessels appeared normal, including the arterioles. Large thin-walled vessels were present in the superficial endometrium of the treated group but were almost completely absent in the controls. The distribution of cytoskeletal markers revealed well-formed basal arterioles with more widespread expression in the superficial stroma than was found in untreated tissue. The volume fraction of blood vessels (P = 0.0001), the number of vessel cross-sections per unit area (P = 0.0003) and the cross-sectional diameters of the largest vascular lumens (P = 0.0001) were significantly increased following treatment with LNG-IUS. However, there was no difference in the median values of vessel diameter or the vascular surface density. CONCLUSION: These findings suggest that the LNG has a localized effect on some vessels within the superficial endometrium.

Actins↗

Deep dyspareunia and sex life after laparoscopic excision of endometriosis.

BACKGROUND: Among subjects with endometriosis and deep dyspareunia (DD), those with endometriosis of the uterosacral ligament (USLE) have the most severe impairment of sexual function. This study examines the effect of laparoscopic excision of endometriosis on DD and quality of sex life. METHODS: This observational cohort prospective study included 68 women with endometriosis suffering DD (intensity of pain >or= 6 on a 10-cm visual analogue scale). Patients underwent laparoscopic full excision of endometriosis. Following surgery, they were asked to use nonhormonal contraception devices. Before surgery, at 6- and at 12-month follow-up, patients answered a self-administered questionnaire based on the Sexual Satisfaction Subscale of the Derogatis Sexual Functioning Inventory. RESULTS: At 6- and 12-month follow-up, women with and without USLE had significant improvement in DD. Subjects with USLE reported increased variety in sex life, increased frequency of intercourse, more satisfying orgasms with sex, relaxing more easily during sex and being more relaxed and fulfilled after sex. Similar improvements were observed among women without USLE; however, for some variables statistical significance was not reached. CONCLUSIONS: Surgical excision of endometriosis improves not only DD but also the quality of sex life.

Adult↗

Contraceptive and reproductive risks for cervical dysplasia in southwestern Hispanic and non-Hispanic white women.

BACKGROUND: Various contraceptive practices and reproductive factors have been associated with cervical neoplasia in case-control studies worldwide. METHODS: To investigate contraceptive and reproductive risk factors associated with high-grade cervical dysplasia in southwestern Hispanic and non-Hispanic white women, we carried out a clinic-based case-control study among university-affiliated clinic attendees. RESULTS: Oral contraceptive use ever (odds ratio [OR] = 0.4, 95% confidence interval [CI]: 0.2-0.9) and past diaphragm use (OR = 0.3, 95% CI: 0.1-0.8) were protective for dysplasia in analyses adjusted for age, ethnicity, sexual behaviour, and for cervical papillomavirus (HPV) infection. After further adjustment for Pap smear screening interval, oral contraceptive use ever remained protective for dysplasia. Vaginal deliveries were strongly associated with dysplasia with > 2 vaginal deliveries associated with a 3.9-fold increase in risk after adjustment for age, ethnicity, sexual behaviour, and HPV infection. Using logistic regression models to simultaneously control for effects of multiple factors as potentially related to cervical dysplasia, we found low educational attainment, cervical HPV infection, cigarette smoking, history of any sexually transmitted disease, and having one or more vaginal deliveries to be associated with dysplasia; oral contraceptive use and past diaphragm use also remained protective for high-grade cervical dysplasia in these regression analyses. CONCLUSIONS: The data suggest that use of oral contraceptives (ever) and past diaphragm use are protective for high-grade cervical dysplasia among Hispanic and non-Hispanic white women in New Mexico. The clinic-based perspective of this research (versus population-based studies) may help explain some of these findings.

Case-Control Studies↗

Why do women complain of vaginal discharge? A population survey of infectious and pyschosocial risk factors in a South Asian community.

BACKGROUND: Vaginal discharge is a common complaint, particularly among women in Asia. Although presumed to be caused by reproductive tract infections (RTIs), the association between the complaint and the presence of RTIs is weak. This study aimed to investigate the risk factors of the complaint of vaginal discharge. METHODS: We conducted a community-based survey of 3000 women aged 18-50 years, randomly sampled from a population in Goa, India. Women who gave informed consent were invited to participate in a structured interview, which elicited data on the primary outcome (the experience of current abnormal vaginal discharge) and psychosocial exposures: gender adversity; symptoms of somatoform disorders; and common mental disorders (CMD). All women were required to provide vaginal and/or urine samples for diagnosis of RTIs using gold standard laboratory tests. Risk factors were analysed using logistic regression with the binary outcome of the complaint of vaginal discharge. RESULTS: Of the 2494 women (83%) who agreed to participate, 14.5% complained of having an abnormal vaginal discharge. Stress was the most common causal attribution for the complaint. The final multivariate model found that high scores for CMD (OR 2.16, 1.4-3.2) and somatoform disorders (6.23, 4.0-9.7) and the use of an intrauterine contraceptive device (1.86, 1.0-3.4) were independently associated with the complaint. Low literacy (0.54, 0.4-0.8) and age >40 years (0.29, 0.2-0.4) were associated with a reduced risk. RTI were not associated with the complaint (1.24, 0.9-1.6). CONCLUSIONS: Psychosocial factors have the strongest association with the complaint of vaginal discharge. Syndromic management algorithms need refinement so that women with complaints that are non-infectious in aetiology are offered psychosocial interventions.

Adolescent↗

Copper and zinc inhibit the metabolism of prostaglandin by the human uterus.

Prostaglandins (PGs) have often been cited as intermediates in the action of the inert and copper-bearing intrauterine contraceptive device (IUD). Although investigations have shown an effect of copper at high (approx. 1 x 10(-4) mol/l) concentrations on PG synthesis, little consideration has been given to the possible effects of copper on PG metabolism. In this study the effect of copper and zinc ions on PG metabolism by human endometrium and myometrium has been investigated using radiolabel techniques together with gas chromatography mass spectrometry (GCMS) measurements of metabolites of PGE2. These experiments showed that concentration of 1 X 10(-5) mol/l of copper and zinc were sufficient to inhibit significantly (P less than 0.01) PGE metabolism. These levels of copper are within the physiological range of levels thought to be present in the uterine tissue and fluid of wearers of the copper-containing IUD and the inhibition of PG metabolism in these women might account for the small but significant decrease in the length of the luteal phase of their menstrual cycles.

Adult↗

Contraception in teenagers.

This review of the special problems of contraception in teenagers has focused on the need for increased efforts in sex education and family-planning and abortion services for this age group. A clear-cut need for new imperatives in these areas is apparent from the data showing an alarming increase in the incidence and rates of unwanted teenage pregnancy and the increased incidence of teenage sexual activity, as compared with earlier times, and its occurrence at earlier ages than previously. Special counseling, education, physical examination procedures, and care and prescription are required when the physician is considering various methods of contraception for adolescents. In the development of adolescent education for responsible sexual behavior, it behooves physicians to keep in mind that it is the members of this age group, in part on the basis of their reactions to the quality of medical care they receive, who will decide and instill the attitudes toward these important issues in the next generation of Americans.

Abortion, Induced↗

Anaerobic infections of the pelvis.

In normal nonpregnant women anaerobes predominate in the cervicovaginal flora. The frequency of Bacteroides fragilis isolation ranges up to 16%. In pregnancy anaerobic prevalence falls progressively from the first to the third trimester and increases precipitously immediately after delivery. Anaerobes are often responsible for infections from vulva to ovaries, but the microbial etiology of post-cesarean section endometritis remains unclear. Risk factors for pelvic infection include cesarean delivery as contrasted with vaginal delivery; among those undergoing cesarean section, risk factors for infection are prolonged labor, prolonged membrane rupture, excessive numbers of vaginal examinations, and perhaps age of less than 17 years. Gonorrhea is also a risk factor for subsequent pelvic infection. The use of an intrauterine contraceptive device is associated with increased risk of pelvic actinomycosis. Anaerobic disease often is associated with a putrid odor and may present as 1 or more pulmonary emboli. Optimal treatment of pelvic anaerobic infections is not yet agreed upon. Clindamycin and chloramphenicol are the 2 documented first-line agents. Penicillin is often effective but a substantial percentage of B fragilis strains resist it; this is also true of carbenicillin. The data on cefoxitin look encouraging, but more data are needed on both the efficacy and the frequency of superinfection.

Adolescent↗

Chlamydia trachomatis infection in women with ectopic pregnancy.

Fifty women with ectopic pregnancy and 49 control women with intrauterine pregnancy were interviewed and evaluated for evidence of Chlamydia trachomatis infection. Among women with ectopic pregnancy, 14 women were wearing an intrauterine contraceptive device or had a tubal ligation (group A), and 36 women had no readily identifiable risk factors (group B). Group B women had greater total numbers of sexual partners than did control women with intrauterine pregnancy (P less than .005). Group B women more often had C trachomatis antibody than group A (P = .03) and control women (P = .002). Of 27 C trachomatis cultures from fallopian tube tissue from women with ectopic pregnancy, none were positive. Fallopian tube tissue distant from the site of ectopic implantation was available for histopathology of 41 cases. Nine (22%) had extensive subepithelial plasma cell infiltration. All nine were among group B women (P = .06) and all seven with plasma cell salpingitis who were tested for C trachomatis antibody were seropositive (P = .004). It is concluded that a subset of women with ectopic pregnancy were at increased risk for acquiring a sexually transmitted disease by virtue of their sexual behavior and that women in this subset frequently have serologic evidence of C trachomatis infection and histologic evidence of plasma cell salpingitis. Because few of these women recall having had pelvic infection, the authors speculate that subclinical C trachomatis tubal infection producing plasma cell salpingitis may commonly underly ectopic pregnancy.

Adolescent↗

Decreasing incidences of gonorrhea- and chlamydia-associated acute pelvic inflammatory disease. A 25-year study from an urban area of central Sweden.

BACKGROUND AND OBJECTIVES: Acute pelvic inflammatory disease (PID) affects women in their reproductive years and is often a complication of a sexually transmitted disease (STD), particularly Neisseria gonorrhoeae and Chlamydia trachomatis. Infertility, ectopic pregnancy, and chronic lower abdominal pain are common long-term sequelae to acute PID. Through different preventive measures, endemic N. gonorrhoeae is almost eliminated, and C. trachomatis has been reduced almost fourfold in Sweden. GOALS: To investigate variations in STD-associated acute PID and the extent to which this influenced the yearly incidences of patients hospitalized for this complication during a 25-year-period. STUDY DESIGN: Hospital records of 2499 patients admitted and treated for acute PID from January 1, 1970 to December 31, 1994 were analyzed for infection with N. gonorrhoeae. Routine laboratory diagnosis for C. trachomatis infection started June 1, 1980. Detailed statistical analysis for chlamydial-associated PID in this study, therefore, covers the period January 1, 1981 to December 31, 1994 and includes 1030 patients. RESULTS: Gonorrhea occurred in 42% of patients with acute PID in 1970 and decreased continuously to zero in 1988 and beyond. Concomitant urogenital chlamydial infection reduced almost fourfold from 28.4% in 1985 to 7.7% in 1994. Yearly admissions for acute PID fluctuated slightly (< or = 16%) in the early 1970s and early 1980s but increased greatly (> 60%) in the middle and late 1970s; the highest was 180 per year in 1976. This coincided with high incidence rates of gonorrhea in the general population, and probably of genital C. trachomatis infection as well, coupled with an increased use of intrauterine contraceptive device in nulliparous women. The largest increase in admissions for acute PID was in the 15- to 29-year-old group. A steady decrease started in 1987 and reached the low figure of 26 admissions in 1994. The greatest decrease occurred in the 15- to 19-year-old group, from the relative age distribution of 28.9% in the period 1970 to 1974 to 12.9% in 1990 to 1994. Yearly admissions for the > or = 35-year-old group remained almost constant during the study period, but the relative age distribution shifted from second lowest (excluding those 14 years or younger, totaling 15 admissions for the entire study period), 9.1% at the beginning of the study period, to the second largest, 24.9% at the end of it. The study also showed that the total and relative rates of recurrence decreased. CONCLUSIONS: Measures aimed at reducing incidences of gonorrhea and genital chlamydial infection will reduce the incidences of one of the most serious complications of these STDs, acute PID, and, in turn, its long-term sequelae.

Acute Disease↗

Medicolegal aspects of an unusual uterine perforation with multiload-Cu 375R.

Perforation of the uterus is one of the most serious complications associated with insertion of intrauterine contraceptive devices (IUD). According to recent studies, this lesion occurs in 0.87 per 1000 cases, but statistics generally fluctuate between 0.05 and 13 per 1000 insertions. "Primary" perforations occur at the time of IUD insertion, and "secondary," or delayed, perforations are usually assumed to be caused by reactive uterine contractions. We report an unusual case of uterine perforation, which occurred 9 days after the insertion of a Multiload-Cu 375 IUD. The criteria for differential diagnosis between primary and secondary complications are discussed, particularly from the perspective of medical malpractice cases.

Device Removal↗

Isolation and characterisation of two strains of Herpesvirus hominis type 1 from fallopian tubes.

Herpesvirus hominis type 1 (HSV-1) was isolated from fallopian-tube biopsies of two women who were using an intra-uterine contraceptive device; the strains were isolated on different dates and at different hospitals. Both the isolates were shown to be HSV-1 by restriction-enzyme analysis, polypeptide profiles and indirect immuno fluorescence; the two isolates could not be distinguished by these tests, but the tests distinguished them from HSV-1 strain 71-15 and HSV-2 strain 333. The viruses were again isolated from samples of fallopian-tube tissue stored in liquid nitrogen, and their polypeptide and restriction-enzyme profiles were the same as those in the initial isolates. Virus was not isolated from fallopian-tube samples obtained from other IUD patients undergoing surgery at the same two hospitals at the same time.

Biopsy↗

Risk factors for ectopic pregnancy in Lagos, Nigeria.

BACKGROUND: Ectopic pregnancy is an important cause of maternal deaths in Nigeria and in other developing countries. In Lagos, Nigeria, it is responsible for 8.6% of maternal deaths, and has a case fatality rate of 3.7%. The purpose of this study was to determine the risk factors for ectopic pregnancy in Lagos. METHODS: A case-control study of 100 patients and 280 controls was performed in the three hospitals--Lagos University Teaching Hospital, Ayinke House Maternity Hospital, and Lagos Island Maternity Hospital--in Lagos from June 1999 to December 1999. Data were analyzed by using logistic regression. RESULTS: The incidence was 23.1/1000 (1 : 43) deliveries and was responsible for 48.5% of gynecologic emergencies. Age, marital status, socioeconomic status, and parity were not the significant risk factors for ectopic pregnancy. An early age of sexual debut increased the risk of ectopic pregnancy almost two-fold (adjusted OR = 1.93; 95% CI = 1.71-2.93), whereas a late age of sexual debut was protective (adjusted OR = 0.37; 95% CI = 0.19-0.59). History of multiple lifetime sexual partners, induced abortions, pelvic inflammatory disease, sexually transmitted disease (STD), miscarriage, and pelvic surgery independently and significantly increased the risk of ectopic pregnancy. Induced abortion and STD increased the risk 14-fold and nine-fold, respectively. Previous use of intrauterine contraceptive device increased the risk almost four-fold (adjusted OR = 3.76; 95% CI = 2.12-6.69), whereas the use of condoms was protective (adjusted OR = 0.35; 95% CI = 0.17-0.71). CONCLUSIONS: Proper sex education, prevention of unwanted pregnancy, and prevention and proper treatment of sexually transmitted infections will reduce the incidence of ectopic pregnancy.

Adolescent↗

Variable effects of RU 486 on endometrial maintenance in the luteal phase extended by exogenous hCG.

This study was designed to assess the features and conditions for endometrial bleeding induction with the synthetic antiprogestin and antiglucocorticoid RU 486 during hCG-induced prolongation of the luteal phase. Eighteen healthy, surgically sterilized women and another five women with an intrauterine contraceptive device (IUD) participated. All subjects received hCG which was injected daily in increasing doses (500 to 15,000 IU) from day 9 to day 15 of the luteal phase. Ten subjects received hCG alone, and groups of three to 16 subjects received hCG combined with RU 486 (25, 50, 100, 200 or 400 mg/day). RU 486 administration was commenced on day 12 following the LH surge and given either for 1, 4 or 7 consecutive days. In certain cycles, tamoxifen (20 mg/day) was given for 4 consecutive days with hCG, or with hCG and RU 486. All treatment cycles were separated by one or two resting cycles. Frequent blood samples were taken to monitor the endocrine response. Treatment with hCG alone or with the various combinations of RU 486 produced similar serum levels of oestradiol and progesterone which were equivalent to those observed during early pregnancy. With hCG alone, the onset of bleeding was on day 21-24 after the LH surge, coinciding with the drop in oestradiol and progesterone. With RU 486 doses of 50 mg/day or more, an early bleeding episode almost invariably occurred on day 14-17 after the LH surge in the presence of high circulating steroid levels. In contrast, 25 mg/day RU 486 for 4 days failed to induce this early onset of bleeding in three out of six cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

The varied appearances of starch particles in smears and paraffin sections.

Evidence is presented to show that maize starch particles, usually recognized in histological sections by their Maltese cross birefringence under cross-polarized light, lose this characteristic appearance when transected by the microtome blade. Such particles are, therefore, likely to be overlooked. Though maize starch usually enters the abdomen during surgery, the female genital tract is another possible route from sources such as contraceptive devices. Other types of starch particle have different shapes, sizes and surface markings and these may be distinguished from maize starch by light and electron optical methods.

Adult↗

Deaths associated with intrapartum asphyxia in Jamaica.

The Jamaican Perinatal Mortality Survey compared all 2069 perinatal deaths occurring during the 12 months between 1 September 1986 and 31 August 1987 with 10,086 survivors born in the 2 months of September and October 1986. The Wigglesworth classification identified 44% of the deaths as attributable to intrapartum asphyxia (IPA), and this grouping was largely confirmed by post-mortem examination where it had been carried out. About half of these babies weighted 2500 g+ and death should have been largely preventable. Comparison of the 813 IPA singleton deaths with 9919 singleton survivors using logistic regression showed independent associations with maternal employment status, the number of children in the household, maternal height, whether or not the mother was trying to get pregnant, or had ever used an intrauterine contraceptive device. Medical conditions such as syphilis, untreated vaginal infection, bleeding < 28 weeks, bleeding 28+ weeks, highest diastolic and first diastolic blood pressures and eclamptic fits antenatally were all strongly associated. Mothers who commenced antenatal care in the first trimester were at reduced risk as were those who took iron during pregnancy. There were substantial reductions in mortality in areas where better medical facilities were available. To this model, features of previous obstetric history were offered, but the only variables which entered were those relating to prior perinatal deaths and immediately preceding miscarriage and termination. Examination of specific features in the management of labour and delivery is a logical basis for the introduction of changes in practice. Caesarean section is unlikely to be appropriate but it is suggested that more active interventions in terms of use of forceps and/or vacuum extraction may be useful.

Asphyxia Neonatorum↗

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