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At least 109 records · Page 6Linked to original sources

Two-year rates for Nova T and Copper T in a comparative study.

A random assignment comparative study between Nova T and Copper T 200 after two years of use revealed that the Nova T resulted in a significantly lower pregnancy rate than the Copper T. The study was performed simultaneously in Denmark, Sweden and Finland. The pregnancy rate in Nova T users was lower than in Copper T users in every country and in every age and parity group. There was no clinic effect in the pregnancy rate of Nova T users. The other termination rates of these two devices were not significantly different. The first segment continuation rates at two years of postmenstrual insertions were 64.7 for Nova T and 65.5 for Copper T 200. It seems that Nova T is an improved copper-releasing IUD.

Actuarial Analysis↗

Self-checking the intrauterine device.

The self-examination habits of 155 women wearing an intrauterine device have been analyzed. One-third were persistently unable to find the tail. There was a loose relationship between the type of device, the length of the tail, and failure to detect. The more parous and those of higher social class were more adept at detection, as were those who examined themselves each month.

Female↗

Intrauterine contraception with levonorgestrel: a comparative randomised clinical performance study.

Two levonorgestrel-releasing intrauterine devices (IUD) with different release rates of levonorgestrel and a 'Nova-T' copper-releasing device were compared in a randomised clinical performance study. 327 women had a levonorgestrel IUD and 156 women a nova-T device inserted postmenstrually. No statistically significant differences in the reasons for termination between the three devices were found in 12 months. The continuation rates for the two levonorgestrel IUDs were 84.1 and 81.4 and for the nova-T device 87.5. Duration of menstrual bleeding and spotting was highly significantly shorter with the levonorgestrel IUDs than with the nova-T device. There were no infections.

Adolescent↗

Use of intrauterine devices (IUDs) for contraception in the common chimpanzee (Pan troglodytes).

The common chimpanzee (Pan troglodytes) is a species phylogenetically very close to man. It was not many years ago that the captive population of chimpanzees (P. troglodytes) was considered at risk because of perceived problems with reproductive success. With the potential need for many individuals for research in a variety of areas, particularly in the areas of parasitic and viral infections, an NIH-funded program was established to promote the breeding of the species. That program, the 'National Chimpanzee Breeding and Research Program', was highly successful, so successful, in fact, that there is now a surplus of animals available for current research programs. This situation has prompted the use of intrauterine devices (IUDs) as a method of fertility control. Overall, this method is successful and associated with a failure (of pregnancy) rate similar to that reported in the human. Physical and logistic constraints, however, render the method less than ideal for situations where a pregnancy rate of zero is desired.

Animals↗

Colposcopy in the localization of missing intrauterine devices.

The use of colposcopy as an office procedure is shown to be an effective method in localizing the IUD's string deep in the cervical canal, and for following those patients who wish to continue with IUD, thus avoiding replacement of the device. In 24 patients with missing string, colposcopy was used, and was found to be an effective procedure which obviates the use of unnecessary x-ray exposure, invasive procedures and expensive ultrasonography.

Abdomen↗

[Side effects of intrauterine pessaries--a retrospective study].

Based upon a retrospective evaluation of 27,519 cycles in 932 patients, we determined the type and rate of incidence of side effects. In 57.2% of the patients, the course was without any complaints. Approximately 80% of all complications, induced by IUD, occur already during the first 3 months after insertion, with the exception of pelvic inflammation and pregnancy. 62.5% of the adnexitides and/or endometritides were observed during the 4-year observation period during the first 12 months without time cumulation; this applies likewise to the pregnancies occurring with IUD. The largest proportion of side effects were haemorrhagic disorders (33.2%), followed by recurrent pain in the lower abdomen (9.9%).

Adult↗

[74 pregnancies despite a retained IUD].

The author's study of 74 pregnancies where an IUD had been inserted was unable to find any tangible reason for the failure of the contraceptive in 40 cases. In 26 cases, dislocation of the spiral was established, while in eight cases anatomical changes were presumed to be the reason for conception. Of the 154 "spiral pregnancies" recorded in Upper Austria in the study period (1984-1985), 92 (i.e., 77.3% of the 119 intact intrauterine pregnancies) culminated in termination, while there were 35 extrauterine pregnancies (22.7%). Of the remaining 27 pregnancies which went to term, there was not a single case of septic complication in the mother or of abnormality in the child. In the author's opinion this argument would seem to present a well-founded challenge to the widespread view that, for the sake of the mother or the fetus, termination is to be recommended if an IUD has been inserted.

Abortion, Incomplete↗

[Long-term experience in intrauterine contraception a comparison between Lippes' loop, Dalcon-shield and copper-t (author's transl)].

Three different models of intrauterine pessaries are compared with each other in respect of tolerance and safety. They were worn for different lengths of time, partly for up to ten years. The comparison shows that the Pearl index in its conventional form is not a suitable indicator. It does provide a pointer if the individual collectives are reduced to the same wearing period. The Life-Table method yields better results. It relates the events for a total of 100 women in each case to the same interval periods. This shows that the most favourable rate of complications and quota of failures is obtained with Cu-T 200. During the first three years this quota decreases steadily. Hence it is recommended to effect intrauterine contraception according to this model wherever suitable and to allow Cu-T to be retained in position for at least three years if it is well tolerated.

Adult↗

Preventing copper intrauterine device removals due to side effects among first-time users: randomized trial to study the effect of prophylactic ibuprofen.

BACKGROUND: Increased menstrual bleeding and pain are the primary side effects that lead to early removal of the copper intrauterine device (IUD). Ibuprofen and other non-steroidal anti-inflammatory drugs (NSAIDs) are proven treatments for such IUD-induced problems, but their effect on early IUD removal is unknown. METHODS: A total of 2019 first-time IUD users were recruited in Chile for this double-blind, randomized, placebo-controlled trial. Half of the participants were given ibuprofen and instructions to take 1200 mg daily during menses (for up to 5 days each cycle) for the first 6 months of IUD use. The other half were asked to take an identical appearing placebo in the same manner. The primary outcome was IUD removal within 12 months of insertion. RESULTS: A total of 1011 and 1008 women were randomly assigned to ibuprofen and placebo, respectively. During 12 months of observation, 190 had the device removed because of dysmenorrhoea and/or increased menstrual bleeding: 85 in the placebo group and 105 in the ibuprofen group. For ibuprofen users, the hazard ratio for removal for these IUD-induced side effects was 1.0 and 1.2 at 6 and 12 months, respectively (both not significant). CONCLUSION: Although increased menstrual bleeding and pain are common reasons for early IUD removal, prophylactic use of ibuprofen, at the dosage used here, does not reduce removal rates.

Adolescent↗

Update on IUDs.

Explore the source record for details and available documents.

Abortion, Spontaneous↗

Clinical experience with today's IUDs.

Today's IUDs are an extremely safe and effective method of contraception. The progesterone-containing system is associated with diminished menstrual blood loss; however, it must be removed and reinserted annually. The copper-containing IUD is effective for up to 10 years, and is protective against ectopic pregnancy. When used for at least 18 months, the copper IUD is the most cost-effective of all contraceptive methods available in the U.S. (37). There are low rates of adverse events associated with IUD use, with no systemic metabolic effects. There is a rapid return to previous fertility, comparable to other contraceptive methods, including oral contraceptives. In addition, in the event that a woman does become pregnant when using an IUD, the IUD does not increase the risk of congenital abnormalities. Finally, when inserted into appropriate candidates, there is a low risk of pelvic inflammatory disease.

Contraindications↗