Pregnancy Dating Test - The Fall of hPL in Urine Over Time
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 11
- 试验地点
- 1
- 主要终点
- The rate of change in human placental lactogen concentration in urine post delivery by Caesarian section
研究概览
简要总结
Earlier studies describe the half-life of hPL in serum as being ninety minutes and that the hormone is excreted unchanged in urine; consequently, there is real potential to use the fall in hormone levels in urine to monitor bleeding in pregnancy, the outcome of natural and artificial abortions or placental health.
This study will focus on the fall of hPL following delivery by Caesarean section when women have a urinary catheter in place and sampling urine is simple to achieve.
详细描述
The hormone hPL has a 90 minute half life in serum and the consequently since it is excreted unchanged in the urine it could be a useful marker to evaluate bleeding in pregnancy, determine if a pregnancy has ended by natural and artificial abortion or if there has been a change in placental function during a normal pregnancy.
The project will recruit twelve pregnant women having an elective Caesarean section to determine the fall in hPL over time. Urine samples will be taken just prior to and then every 30 minutes for the first six hours after delivery by Caesarean section.
Pregnant women presenting for an elective Caesarean section at Guy's & St Thomas' NHS Foundation Trust (GSTFT) will be approached to join this study and the following will be done:
- Invited to participate in study and given Patient Information Leaflet
- Informed consent obtained
- Eligibility for inclusion determined
- A urine sample (20ml) will be collected prior to the Caesarean from the urinary catheter
- Then urine samples (20mls) will be collected every 30 minutes for the first six hours following Caesarean section delivery
- The result of the dating ultrasound scan will be added to the trial documentation record
- The weight of the baby will be added to the trial documentation record
Consent The patient information leaflet clearly states the purpose of the research and the low risk of participation. The co-signing researcher on the consent form will ensure that the signee understands the alternative, is able to retain the relevant information, has capacity and is exercising free choice.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 52 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •The women is 18 years of age or older
- •She understands the patient information leaflet, trial requirements and has signed the consent form
- •The Caesarean delivery will be at GSTFT
- •Prepared for urine to be collected for up to when the urinary catheter is removed or six hours, whichever is sooner
- •Agrees for the demographic and medical history data to be collected.
排除标准
- •Under 18 years of age
- •Unable to understand the patient information leaflet or consent to join the trial
- •The Caesarean delivery will not be at GSTFT
- •The women is not for urine to be collected
- •The women does not agree for demographic or history data to be collected.
- •The women has a haemorrhage greater than one litre during the Caesarean delivery
结局指标
主要结局
The rate of change in human placental lactogen concentration in urine post delivery by Caesarian section
时间窗: Baseline and then 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330 & 360 minutes after delivery of the baby by Caesarean section
次要结局
未报告次要终点
研究者
Anatole S Menon-Johansson
Deputy Clinical Lead, Sexual & Reproductive Health Department
Guy's and St Thomas' NHS Foundation Trust