Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Contraception Failure”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,207 records · Page 67Linked to original sources
PubMedDate not supplied

Risk-benefit assessment of anticonvulsants in women of child-bearing potential.

Problems with anticonvulsants in women of child-bearing potential include potential adverse effects on appearance, contraception and pregnancy. These effects must be weighed against the overwhelming benefits of anticonvulsant treatment in the majority of women with epilepsy. Coarsened features, hirsutism and acne may occur in both men and women, particularly if they are exposed to phenytoin. Valproic acid may cause weight gain and hair loss, while carbamazepine treatment carries a significant risk of skin rashes. Anticonvulsants which are liver enzyme inducers (phenytoin, phenobarbital, primidone and carbamazepine) reduce the efficacy of the oral contraceptive pill. No 'pill failure' has been reported with valproic acid. There is a risk of increased seizure frequency in pregnancy irrespective of whether anticonvulsant treatment is taken. Individual seizures carry little risk to the mother or the fetus but status epilepticus has a significant maternal and fetal mortality. The risk of status epilepticus must be taken into account when deciding whether to stop anticonvulsant treatment before pregnancy. There is a 2 to 3 times increased malformation rate in the offspring of epileptic women on treatment. This is primarily due to the drug treatment, but epilepsy itself may also increase the malformation rate. Most malformations are mild and include facial clefts, congenital heart disease and skeletal abnormalities. Valproic acid, however, carries a 1% risk of causing neural tube defects: women receiving this drug who become pregnant should have an ultrasound and alpha-fetoprotein estimation at 16 to 18 weeks of pregnancy. If any abnormality is detected then amniocentesis should be carried out. Women with epilepsy should be counselled before conception and during pregnancy. Before achieving pregnancy a women should be on optimum treatment, preferably on one anticonvulsant. Consideration should be given to withdrawal of anticonvulsant drugs in any woman who has been seizure free for 2 years or who has only mild and infrequent seizures. Folate supplementation should be started prior to conception and should continue during pregnancy. There is a tendency for anticonvulsant drug concentrations to fall during pregnancy, and the dose may need to be increased if clinically indicated. Over 90% of epileptic women who become pregnant will have uneventful pregnancies and will produce healthy infants.

Anticonvulsants↗
PubMed1999

Breakage and slippage of condoms among users in north Gondar Province, Ethiopia.

OBJECTIVE: To determine the frequency of condom breakage and slippage among male condom users and to analyse some factors affecting condom breakage. DESIGN: Prospective study undertaken from March to June 1996. SETTING: Gondar, Teda and Aykel health centres in north Gondar province. PARTICIPANTS: One hundred and seventy literate male condom users who volunteered to participate in the study were enrolled, but data were collected and analysed for 143 persons. MAIN OUTCOME MEASURES: Condom breakage was measured as the number of condom broken while opening the package, putting on, during intercourse or withdrawal; and condom slippage was measured as the number of condoms slipped off the penis during intercourse or withdrawal. RESULTS: Of 143 participants, 26.6% broke condoms. Total condom breakage rate was 4.6% and slippage rate was 0.1%; half of the condom breakage occurred at the tip. Condom breakage was more observed in less educated (p < 0.05). Breakage rate and experience of condom use were negatively correlated (r = -0.214, P < 0.05). CONCLUSION: User's knowledge and experience reduce the breakage of condom.

Adolescent↗
PubMed1989

Secondary amenorrhea at Maharaj Nakhon Chiang Mai Hospital.

One hundred and thirty-seven patients attending the gynaecological endocrine clinic at Maharaj Nakhon Chiang Mai hospital between April 1, 1982 and July 31, 1987 were studied. Detailed history, physical and pelvic examination were obtained on all patients, followed by progesterone withdrawal test and other appropriate laboratory studies including thyroid and reproductive hormone profiles. The most common cause of secondary amenorrhea in this study was hypothalamic-pituitary dysfunction (54.7%), not unlike those reports from other foreign series. However, it was notable that nearly 40 per cent of our patients in this group experienced amenorrhea after discontinuation of contraceptive steroids. Premature ovarian failure was the second leading cause of amenorrhea in our patients (13.9%) and, perhaps, deserve future detailed studies. The other causes of amenorrhea in decreasing frequency were: hyperprolactinemia (11.7%), hypothalamic-pituitary failure (8.0%), Asherman's syndrome (5.1%) and androgen excess (2.9%). Primary hypothyroidism was a rare cause of amenorrhea in this study.

Adolescent↗
PubMed2002

Socio-demographic determinants of intrauterine device use and failure in China.

BACKGROUND: This study examines social, demographic and family planning programme factors influencing intrauterine device (IUD) use, failure and subsequent resolution ('use dynamics') in the 1988 Chinese National Survey of Fertility and Contraceptive Prevalence. METHOD: A time-to-failure model was used to identify independent determinants of IUD failure. Logistic regression was used to identify independent predictors of abortion in women after failure. RESULTS: Being younger at IUD fitting [<25 versus > or = 35 years, hazard ratio 5.9, 95% confidence interval (CI) 4.3, 7.7] and having a larger number of living children (> or = 3 versus <2 children, hazard ratio 1.2, 95% CI 1.1, 1.4) predict higher risk of IUD failure when controlled for each other; but in women with IUD failure, being older and having fewer children predict a much higher chance of resulting abortion. Contraceptive history and social/regional factors were also associated with higher IUD failure risk, in particular, use before 1984 (hazard ratio 1.3, 95% CI 1.2,1.4); and some of these factors were also predictive of abortion following failure. CONCLUSIONS: The determinants of IUD use dynamics suggest two main possible mechanisms. Some determinants may reflect effects of the Chinese family planning programme; some may indicate women's physiological and biological reactions to IUD. Health implications and relevant policy recommendations are discussed.

Abortion, Induced↗
PubMed1983

Why do inadvertent pregnancies occur in oral contraceptive users? Effectiveness of oral contraceptive regimens and interfering factors.

Inadvertent pregnancies in combined pill users are not uncommon, and are usually due to errors of tablet taking. However, many factors may contribute to 'pill failure'. In this review the endocrine pharmacology of pill use and the changes reported with missed pills have been considered in detail. The influences of other factors including drug interactions have been reviewed and a series of recommendations made for reducing the risk of pregnancy in each of these circumstances.

Anti-Bacterial Agents↗
PubMed2001

Factors influencing contraceptive use in Tehran.

BACKGROUND: Despite reluctance to conceive, approximately 30% of couples do not use any method of contraception. Health concerns, side effects, failure of the method and some demographic issues such as education, age, residential region and number of living children have a major effect on contraceptive use. OBJECTIVE: The aim of the present study was to determine those factors which influence contraceptive use in Tehran. METHODS: Data from the project "The Study of the Effectiveness of Postpartum Consultation about Family Planning on Contraceptive Practice during 2 years after Parturition in University Hospitals of Tehran in 1996" were applied for the analysis of those factors which influence contraceptive use by Iranian couples. A total of 4177 women of reproductive age who gave birth in one of the 12 hospitals in Tehran during the 24 hours following the interview of the initial study and had at least one living child were enrolled in the present study. The questionnaire used included some questions about socio-demographic status, fertility history, knowledge of contraceptives and the source of this knowledge, and previous contraception practice and its effectiveness. RESULTS: Using a logistic regression model, it was found that age, women's level of education, their husbands' level of education and previous familiarity with contraceptive methods were the most significant factors influencing contraceptive use. CONCLUSIONS: It is suggested that health policy makers strengthen the family planning services through providing appropriate counselling in family planning clinics.

Adult↗
PubMedDate not supplied

Asian workshop recommends injectables.

Injectable contraceptives are now in use in over 65 countries, including 15 developed nations. At the 1st Asian Regional Workshop on Injectable Contraceptives, held in Thailand in May, this fact was underlined and the conclusion reached that it was time that other countries should review the acceptability of and need for injectable contraceptives in the context of their own national family planning programs. Over 50 people from 11 countries, including Bangladesh, India, Indonesia, the Philippines, Sri Lanka, and Thailand, took part. The workshop was also attended by IPPF's deputy medical director, Dr. Pramilla Senanayake. The largest clinical experience in the use of injectable contraceptives is in Asia, and the participants of the workshop were able to meet 10 of the Thai women who had had the injectable, Depo-Provera, continuously for over 10 years. These women had not missed a single injection, and had had no serious side effects, nor any unwanted pregnancies during this time. In a discussion on the recent decision of the U.S. Food and Drug Administration (FDA) to refuse a license for Depo-Provera in the U.S., it was pointed out that on 2 successive occasions Depo-Provera had been recommended for approval to the FDA by its own Obstetric and Gynecological Advisory Committee. (The membership of this advisory committee was made up of U.S. experts in obstetrics and gynecology.) Medical data were considered which showed that the return of fertility with Depo-Provera was comparable to that with oral contraceptives or IUDs, and method failure extremely low. On the evidence now available the workshop agreed that on the grounds of safety, exceptional use-effectiveness, and acceptability, injectable contraceptives had a valuable role to play in family planning. No serious adverse effects had been reported, freedom from metabolic effects was important, and earlier concern about the return of fertility after discontinuation had been dispelled. The current evidence on the safety of injectables did not indicate that this method would be less safe than oral contraceptives or IUDs.

Asia↗
PubMed2001

[Contraception and pregnancy in adolescence]

OBJECTIVE: To review and discuss different contraceptive methods currently used by adolescents, and also discuss adolescent pregnancy, including the associated risks and the importance of prenatal care. METHODS: Review of literature and clinical experience with different contraceptive methods and with adolescent pregnancy. RESULTS: The oral contraceptive pill is the most common method used by teenagers due to its low failure rate and other non-contraceptive effects. Emergency contraception is a good option in cases of rape, unplanned sexual intercourse, condom rupture, nonuse of oral contraceptives during short intervals. In this case, the pill should be taken within 72 hours after the intercourse (preferably before 24 hours for best effect). Most problems related to adolescent pregnancy have a social or economic origin; however, some medical complications such as preterm labor and anemia are frequently reported. CONCLUSIONS: The use of male and female condoms combined with other contraceptive methods should be encouraged to prevent sexually transmitted diseases. If pregnancy is confirmed, prenatal care must be implemented as soon as possible in order to minimize the risks of complication and to allow for an effective multidisciplinary approach.

Journal Article↗
PubMed1999

[A randomized multicentre clinical trial on different doses of mifepristone alone and in combination with anordrin as emergency contraception].

OBJECTIVES: To investigate the effectiveness and side-effects of different doses of mifepristone alone or in combination with anordrin given orally within 96 hours after unprotected intercourse as an emergency contraceptive. METHODS: 2,400 cases of healthy women were recruited and allocated randomly in 4 groups: single dose of 25 mg mifepristone, 25 mg mifepristone plus 7.5 mg anordrin, 10 mg mifepristone plus 5 mg anordrin and 10 mg mifepristone alone. The efficacy rates of contraception were estimated according to Dixon method. RESULTS: The total expected number of pregnancy was 171.9 for 2,387 subjects enrolled in the study. The number of observed pregnancies related to method failure was 32 cases. The contraceptive effectiveness rates for the above 4 groups were 80.9%, 85.3%, 90.6% and 67.3%, respectively. For the group received 10 mg mifepristone plus 5 mg anordrin, pregnancy rate was 0.7% which was significantly lower than that in 10 mg mifepristone alone group (2.2%, P < 0.05). The incidences of withdrawal bleeding were 9.2%, 4.9%, 3.4% and 6.7% for the 4 group respectively. Two groups received mifepristone in combination with anordrin showed significant lower incidence of withdrawal bleeding than those in mifepristone alone groups. CONCLUSION: Single oral administration of 25 mg mifepristone alone, and the combination of 10 mg mifepristone plus 5 mg anordrin were safe and effective treatment regimen for emergency contraception with no serious adverse reaction and disturbance on menstrual pattern.

Adolescent↗
PubMed2002

Unresolved issues in contraceptive health policy.

The year 2000 marked the fortieth anniversary of the oral contraceptive known as the "pill." Despite the availability of the pill, and other contraceptives, many unresolved issues remain. Concerns with contraceptive side effects, high use-failure rates, and high rates of both unintended pregnancies and abortions indicate a need for improved contraceptive choices. Experts have called for a second contraceptive revolution that would bring radically new contraceptive products to the market. Unfortunately, this second revolution has not occurred, and contraceptive research has been virtually abandoned by most major pharmaceutical firms. We suggest that inclusion of contraceptives within the 1983 Orphan Drug Act and U.S. federal legislation known as the Food and Drug Administration (FDA) defense could provide the economic incentives needed to spark the second contraceptive revolution.

Contraception↗
PubMed2004

Gram-negative bacterial endotoxin- induced infertility: a birds eye view.

Alleviation of infertility on the one hand and development of improved methods of contraception on the other are global concerns to woman's health. The molecular signals that regulate implantation are of clinical relevance since understanding the nature of these signals may lead to strategies to correct implantation failure and to develop novel contraceptive approaches. The other pressing concern is the poor pregnancy rate resulting from in vitro fertilization (IVF). The pregnancy rate in IVF programs remains about 20-30% in spite of the high rate of successful fertilization. This has led to the proposition that additional uterine factors, critical for the implantation process, must be limiting. Identification of such parameters could help in determining the appropriate physiological state of the uterus for embryo transfer. Several factors are known to have a direct or indirect impact on the ability of the uterus to develop to a functionally receptive state. This would disrupt the normal coordination between embryonic and uterine development even though all molecular players may seem otherwise normal.

Endotoxins↗
PubMed1999

Depo Provera. Position paper on clinical use, effectiveness and side effects.

Depo Provera (medroxyprogesterone acetate, DMPA) when given as 150 mg by deep intramuscular injection every 12 calendar weeks (84 days+5 days), is a highly effective contraceptive with a very low failure rate comparable to modern copper IUDs and lower than many other methods. It should be available as a first line method to all who wish to make an informed choice about reversible methods of contraception. Pre-use counselling is essential to minimise the effect of menstrual change which occurs in most patients. However there is great patient variability. Use of DMPA is independent of intercourse and also independent of the user's memory (and thus of continuing motivation), other than remembering the 12 weekly appointments. For many women this is a great advantage. Oral contraceptive methods involve remembering to take a pill each day, in the case of the progestogen only pill within the same three hours each day. This places considerable strain on women who lead irregular lifestyles, who are very busy or travel frequently. Such women often describe a constant 'fear of forgetting', especially with the POP. The main potential disadvantage of DMPA in this country are likely to be menstrual disturbance and weight gain. The combined oral contraceptive pill gives the appearance of excellent cycle control because it removes the natural cycle altogether and replaces it with an artificial one. All progestogen-only methods, whether low or high dose, lead to menstrual disturbances, so in this respect DMPA is not unique. Although troublesome, the menstrual disturbances which occur in DMPA users very rarely require operative medical intervention, and can often be improved simply by short courses of oestrogen or shorter injection intervals. Again, women need to know what can be done so that they are aware that they should seek advice early, rather than miserably waiting.for their 12 week appointment. DMPA has no appreciable effects on blood pressure or thrombosis risk. In this it has an advantage over the combined oral contraceptive pill, and provides a simple, effective alternative for women who cannot use the pill for these reasons. Similarly, it has been suggested that women who suffer from focal migraine and are therefore advised against use of the combined oral contraceptive pill can still use progestogen-only contraceptives. Although the POP is medically safe in these circumstances, in young women it is less effective, and involves strict time keeping, which will be disadvantageous for some women. Side effects, long term use and schedules of administration are also discussed. The use of local protocols to allow nurse administration is to be supported both in general practice and the clinic situation. Perhaps the most important issue surrounding the use of DMPA is that of patient information. The method has had a particularly bad public image, which naturally makes potential users anxious and subject to misinformation from poorly informed or biased sources. Also, it is temporarily irreversible during its three months duration, so the duration of any problems or anxieties resulting from side effects may be longer than for other methods. It is of paramount importance that easily understood, accurate patient information leaflets are available, since biased and inaccurate information is readily available from women's magazines, perpetuating the myths surrounding the method.

Adolescent↗
PubMed1988

Failure of hepatic adenomas (HCA) to regress after discontinuance of oral contraceptives. An association with focal nodular hyperplasia (FNH) and uterine leiomyoma.

Oral contraceptives have been implicated in the development of hepatic cellular adenomas (HCA) and associated in at least one report with focal nodular hyperplasia (FNH). Recurrence of lesions or progression while the patient is no longer receiving exogenous steroids is less well documented. Three cases are reported in which progression or recurrence of HCA after the discontinuance of steroids was documented. In addition, FNH and uterine leiomyomas with HCA were observed in all three cases. The mechanism of tumor formation secondary to the use of oral contraceptives remains undetermined. In two cases, liver tissues were tested for estrogen receptors; both were found to be negative. Although technique as well as the observed progression of these lesions or development of new lesions after the discontinuance of steroids may account for this negative finding, it suggests that induction of this process may be caused by means other than direct cellular stimulation by the exogenous hormones. Finally, these three cases call attention to a potential subgroup of patients having oral contraceptive-associated HCA who may have progression of their liver tumors when no longer receiving steroids and who require an aggressive treatment program and noninvasive follow-up examinations.

Adult↗
PubMed2004

Determinants of pill failure in rural Bangladesh.

The pill is the most popular family planning method in Bangladesh. However, the failure rate of this method in Matlab, a typical rural area, has been found to be very high. It is estimated that with the current level of failure of the pill and other temporary contraceptives in Matlab, it is unlikely that fertility in Bangladesh will come down to replacement level without a change in contraceptive method mix. It is, therefore, important to know the reasons for the high failure in pill use. Data for this study came from a case-control study in Matlab. A pill failure was considered a case, and no-failure was considered a control. The study included 167 cases and 167 controls. In addition, five focus group discussions were conducted to supplement the data collected from the cases and controls to gain a deeper understanding of pill failure. Results of the analysis of both quantitative and qualitative data suggested that the following were the risk factors for pill failure: no mobility of women, poor knowledge of women about the effectiveness and consequences of drop-out from pill use, weak confidence in the pill, a gap between the use of subsequence pill cycles, delay in starting the pill after menstruation for the first use, not taking any measures consistently for missing the pill, and not following the arrow sign given on the pill cycle. Extensive training of field workers and pill users, covering the reasons for pill failure identified in this study and strong supervision of the work of field workers, is likely to reduce the rate of pill failure in Bangladesh. Also, information, education and communication services for users, and management of side-effects, may be helpful in reducing pill failure.

Adult↗
PubMed1997

[A case of arterial hypertension after use of oral contraceptives].

It is known that oral contraceptives may induce high blood pressure that usually returns to normal values a few weeks after interruption of the drugs, and without any specific treatment. The precise mechanism by which oral contraceptives cause hypertension is not clear. A severe hypertension and mild heart failure in a young woman using oral contraceptives has been observed in the case described. The patient needed a careful and prolonged therapy to maintain a normal blood pressure.

Adult↗
PubMed2000

The female condom.

BACKGROUND: The female condom has been available in numerous countries for some years. It was launched in Australia on March 8th, 2000 and is an important addition to the range of barrier contraceptives. OBJECTIVE: This article aims to provide an overview of the female condom to enable GPs and nurse practitioners to advise clients and provide information about its use. DISCUSSION: The female condom is an effective form of contraception. When used correctly it has a failure rate of about 5%, which compares favourably with other forms of barrier contraception. It is important that users are instructed on insertion, in particular the need to guide the penis into the condom. Evidence shows that it reduces the incidence of sexually transmitted infections. There may also be additional benefit in reducing wart virus and herpes transmission, as there is greater protection to the vulva and the base of the penis, when compared with the male condom. The female condom has high user acceptability, and offers advantages in terms of sensitivity and also ease of use by men with erectile dysfunction. It is the only barrier protection under a woman's control, giving protection to the vagina and vulva as well as the cervix.

Australia↗
PubMedDate not supplied

Tubal ectopic pregnancy after bilateral tubal ligation: A case report.

BACKGROUND: Tubal ligation is a common method of contraception, and pregnancy after this method of sterilization is uncommon. We here present a report of Tubal pregnancy after a Bilateral Tubal Ligation (BTL). METHOD: The case notes of a 35 year Nigerian female who presented with a tubal pregnancy after BTL and a review of literature on the subject was used. RESULT: A 35-year-old para 4=0 had bilateral tubal ligation during caesarean section for her last childbirth. She presented 3 years later with a six weeks history of irregular vaginal bleeding and lower abdominal pain and had a laparotomy for a right tubal ectopic pregnancy. CONCLUSION: Ectopic pregnancy after bilateral tubal ligation is uncommon. Females who undergo BTL should be adequately counseled on the possibility of failure of this procedure for contraception.

Adult↗
PubMed1992

Noninvasive diagnosis of resistant ovary syndrome by ultrasonography.

OBJECTIVE: To compare transvaginal ultrasonographic features of the ovaries and endometrium of patients with premature ovarian failure to normally cycling women on oral contraceptives (OCs), menopausal women with an equivalent duration of amenorrhea to the premature ovarian failure group, and patients with Turner's syndrome. DESIGN: Transvaginal ultrasonography in groups of women with premature ovarian failure, OC, and menopause. SETTING: All subjects were studied in an academic tertiary care center. PATIENTS/PARTICIPANTS: Seventeen women with premature ovarian failure, 20 volunteers on OC, 20 with menopause, and 4 patients with Turner's syndrome were studied. INTERVENTION: None, except for OCs in the OC group only. MAIN OUTCOME MEASURES: Frequency of ovarian, ovarian follicle, and endometrial visualization and their respective measurement in the three groups. RESULTS: At least one ovary was visualized in 84% of the premature ovarian failure patients as compared with 95% of the OC and menopause groups and 25% of the Turner patients. Mean ovarian volume was smaller in the premature ovarian failure group as compared with the OC group but equal to that of the menopause group. In the premature ovarian failure group, 41% had follicles in their ovaries as compared with 95% in the OC group, 5% in the menopause group, and none in the Turner group. The number of follicles per ovary was significantly lower in the premature ovarian failure as compared with the OC group, whereas only one subject had a single follicle in the menopause group. Premature ovarian failure subjects with follicles had larger ovaries than those without follicles. Endometrial thickness was not different among the groups. CONCLUSION: Ultrasonography may serve to identify a substantial subset (approximately 40%) of premature ovarian failure patients with ovarian follicles and potential for fertility consistent with the diagnosis of resistant ovary syndrome.

Adult↗