Clinical uses of prostaglandins in human reproduction.
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Although MR and PT are post-conception family planning measures, a large number of women were found to be non-pregnant. In the absence of direct evidence, presence of necrosis in the placental tissue in 20.8% cases is regarded as suggestive of abnormal ova which might have ended in abortion.
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A variety of psychologic disorders may present as physical complaints without organic basis. As characterized by Sydenham over 300 years ago, such disorders "mimic all the physical disease to which man is heir." The case here presents the evolution of a conversion disorder (urinary retention) in response to a decision to terminate pregnancy. The predominant disturbance in a conversion disorder is an involuntary loss or alteration in somatic function that is temporally related with an environmental stressor. Conversion, as a defense mechanism, provides primary gain by keeping the conflict from the patient's awareness and secondary gains by generating environmental support and avoidance of undesired activities. Awareness of a patient's current life events, past responses to stress, and support systems is essential in order to recognize and manage this array of physical complaints of functional origin.
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The development of generally applicable, simple non-surgical methods for menstrual regulation has been desired for a long time. Such an approach to fertility control depends on the availability of a suitable therapeutic agent that should be effective, reliable, simple to administer and free from disturbing side effects. The classical prostaglandins have shown the capability but are unsuitable mainly due to high incidence of side effects. Most of these drawbacks seem to be overcome when prostaglandin analogues are used; however, vaginal administration caused appreciable pain in 10-30% of women, and so severely limits self-administration of these analogues.
As an increasing percentage of adolescents reach their sexual debut at younger ages, effective contraceptive methods, which will decrease the risks of unintended pregnancies and sexually transmitted diseases (STDs), become even more critical. Contraceptive methods which are less 'compliance-dependent', such as the implantable subdermal levonorgestrel and the injectable depot formulation of medroxyprogesterone acetate, are popular in adolescents but careful counseling before method selection and on-going counseling when side-effects are experienced are necessary and essential. The use of condoms to decrease the risks of STDs will continue to be important for adolescents, and it remains to be seen what impact the long-term methods will have on effective condom use. Adolescents' access to abortions when contraceptive methods fail, or when no method is used, is being challenged with state laws which mandate parental notification or permission. A greater knowledge about the option of emergency contraception could potentially lead to increased use of this method, particularly when the option of medications such as RU486 becomes available. The potential for a reduction in unintended pregnancies in adolescents, and a reduced need for abortions is a welcome prospect.
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The use of drugs to terminate pregnancy could cut the number of unsafe abortions, according to the Wellcome Trust and the Population Council. A specialist conference in January this year concluded that the technique is safe and effective and would be particularly valuable in resource-poor countries. In an article in the journal Science staff of the two organizations outline the research that will be necessary before medical abortion can be made widely available in the developing world. It is estimated that half of all surgical abortions are conducted in unsafe conditions. Drug-induced (medical) abortion has been available in developed countries for over 10 years, usually involving the use of the drug mifepristone. A cheaper drug, misoprostol, is already in use in some developing countries. Meanwhile, WHO has published a booklet on "emergency contraception." The term refers to contraceptive methods that can be used by women in the first few days following unprotected intercourse to prevent an unwanted pregnancy. This would not be considered as abortion by most authorities. The emergency methods available are: increased doses of combined oral contraceptive pills, high doses of progestogen-only pills, or inserting of copper releasing IUDs.