![]() In all, 139 were eligible for the trial and were asked to wear the AmnioSense panty-liner for 20 minutes, or until they were aware of any dampness. Some had been referred to the unit by their GP or midwife, while some had been so concerned they went straight to the hospital. This study also demonstrated the results are clear enough to be interpreted accurately by pregnant women, with 97% alignment between subjects and healthcare professionals.Īnother trial investigated the use of AmnioSense with 157 women attending the antenatal unit at St Thomas’ Hospital in London with a suspected leak of amniotic fluid. ![]() The results could be read for up to 12 hours, which is important in a real-world setting as a woman could carry out the test at home, and still have time to get to her midwife or healthcare provider and show them the result.Ī further study involving 339 women attending hospital with unexplained vaginal wetness found that AmnioSense correctly detected 96% of cases where a leak of amniotic fluid was confirmed. Samples of amniotic fluid taken from 50 women, between 16 and 23 weeks gestation, who were undergoing checks for foetal abnormalities showed that in all cases the AmnioSense test gave a positive response to the presence of amniotic fluid. Several studies have confirmed the accuracy, sensitivity and ease of use of AmnioSense. AmnioSense provides reassurance and peace of mind for pregnant women. Unlike a speculum examination, AmnioSense allows for constant monitoring and ensures small, difficult to diagnose ruptures, such as hind leaks, are detected. The strip changes colour from yellow to blue or green when it comes into contact with any fluid which has a pH of more than 6.5, as is the case with amniotic fluid. Each liner can be worn for up to 12 hours to ensure continuous monitoring and can detect as little as 100 microliters of amniotic fluid - the equivalent of 2 drops. NICE approved, AmnioSense is a two-stage diagnostic polymer strip within the comfortable and familiar format of a panty-liner. ĪmnioSense TM, is a new evidence based test which has been proven to be as accurate as hospital-based examinations (Ferning test, sterile speculum examination and pH test). However current testing methods do not always detect small ruptures and hind leaks, which is of concern for all maternity and midwifery professionals as any leak of amniotic fluid increases the risk of a serious neonatal infection (1% compared to 0.5% for women with intact membranes) and early onset of labour in that 60% of women will go into labour within 24 hours. ![]() In around 50% of cases, the wetness is urine and women are sent home. It is not standard NHS practice to use acidity or Ferning tests to confirm any pooling is amniotic fluid. Unless there is an obvious rupture, a speculum examination will be performed to determine if there is any pooling of amniotic fluid. However, dampness may indicate a rupture of the membranes. In most cases, it is harmless, resulting from urinary incontinence or changes to the vaginal secretions. Around 20% of pregnant women report to hospital or birth units reporting wetness. Vaginal wetness is common during pregnancy.
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