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The Visible Embryo provides visual references for changes in fetal development throughout pregnancy and can be navigated via fetal development or maternal changes.

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The World Health Organization (WHO) has created a new Web site to help researchers, doctors and patients obtain reliable information on high-quality clinical trials. Now you can go to one website and search all registers to identify clinical trial research underway around the world!



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Pregnancy Timeline by SemestersFemale Reproductive SystemFertilizationThe Appearance of SomitesFirst TrimesterSecond TrimesterThird TrimesterFetal liver is producing blood cellsHead may position into pelvisBrain convolutions beginFull TermWhite fat begins to be madeWhite fat begins to be madeHead may position into pelvisImmune system beginningImmune system beginningPeriod of rapid brain growthBrain convolutions beginLungs begin to produce surfactantSensory brain waves begin to activateSensory brain waves begin to activateInner Ear Bones HardenBone marrow starts making blood cellsBone marrow starts making blood cellsBrown fat surrounds lymphatic systemFetal sexual organs visibleFinger and toe prints appearFinger and toe prints appearHeartbeat can be detectedHeartbeat can be detectedBasic Brain Structure in PlaceThe Appearance of SomitesFirst Detectable Brain WavesA Four Chambered HeartBeginning Cerebral HemispheresEnd of Embryonic PeriodEnd of Embryonic PeriodFirst Thin Layer of Skin AppearsThird TrimesterDevelopmental Timeline
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August 17, 2012--------News Archive Return to: News Alerts


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WHO Child Growth Charts

       

Continuous Oral Contraceptives Offer Earlier Pain Relief

Taking oral contraceptives continuously, rather than as traditionally prescribed for each cycle, provides earlier relief for moderate to severe menstrual cramps - dysmenorrhea


Dysmenorrhea occurs during menstruation,
resulting from abnormal uterine contractions,
increased sensitivity to pain
and added pressure in the pelvic area.
It is often accompanied by nausea, vomiting,
diarrhea, headache and fatigue.


"Between 50 and 90 percent of women suffer from this condition, and it can really limit work, school, or athletic performance," said Dr. Richard Legro, professor of obstetrics and gynecology at Penn State College of Medicine. "Previous studies have estimated that dysmenorrhea accounts for 600 million lost work hours and $2 billion annually."

Participants in this study suffered from unexplained menstrual pain. Their pain was not attributable to previous surgeries, ovarian cysts, endometriosis, or other pelvic or bowel diseases. Results were published in Obstetrics and Gynecology.

Legro: "Oral contraceptives are often prescribed to treat this condition, since reducing menstruation is a relatively straightforward way to relieve this cramping. However, we wanted to determine whether there was a measurable difference between cyclic and continuous oral contraceptive treatment methods."


Cyclic treatment with oral contraceptives
mimic a woman's natural cycle by
preventing menstruation for 21 days,
then stopping the pills for the next 7
so bleeding can occur.

The continuous method consists of
28 days of active contraception,
with no break for menstruation.


After six months of evaluation, both treatment groups experienced a significant reduction in menstrual pain.


However, women taking the continuous
contraceptive treatment reported
significant pain relief earlier due to
the uninterrupted nature of treatment.


While there is little or no difference in the composition of these two methods -- only the time they're taken -- there are different side effects with each. Patients should consult their doctor before making any changes to their regimen, as further research is needed to determine the risk-to-benefit ratio of extended use of continuous contraception for treatment of primary dysmenorrhea.

Other researchers on this project are Romana Dmitrovic of the BetaPlus Center for Reproductive Medicine in Zagreb, Croatia, who was the lead clinical investigator, and Allen R. Kunselman, senior instructor, Department of Public Health Sciences, Penn State College of Medicine.

The National Institute of Child Health and Human Development of the National Institutes of Health funded this study.

Original article: http://www.eurekalert.org/pub_releases/2012-08/ps-coc081512.php