Pressure Dynamics in the Non-gravid Uterus: Development of an Intrauterine Pressure Threshold to Confirm Tubal Occlusion After Nonsurgical Permanent Contraception
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Intrauterine Fluid Volume Lost
研究概览
简要总结
The overarching goal of this study is to find an alternative method to hysterosalpingogram (HSG) to confirm bilateral tubal occlusion after permanent contraception.
详细描述
The hystero-(uterus)salpingo-(fallopian tube)graphy (HSG) study is a standard radiological imaging study used to evaluate the internal female reproductive parts, the uterus and fallopian tubes. The tubes are a passage that allows fluid and cells to flow between the body cavity and the uterus. Normally, both tubes are open to this flow, a condition called "tubal patency". If one or both tubes is blocked preventing flow of fluid, this is called "tubal occlusion". If there is tubal patency, as the pressure increases in the uterine cavity, fluid will move through the tubes into the body cavity. If the tubes are occluded, pressure will increase in the uterus but the fluid will not move into the tubes.
The long-term goal is to develop an alternative test to confirm both fallopian tubes are blocked after a non-surgical permanent contraception (sterilization) procedure. Currently tubal patency is determined by HSG.
In this study, the investigators evaluate the potential for alternative diagnostic office tests. The study will evaluate whether uterine pressure measurements can predict tubal patency, or whether the change in volume following intrauterine administration of a fixed volume of saline followed by aspiration predicts tubal patency.
Prior to the instillation of contrast solution, investigators will administer a fixed volume of saline at a constant rate until we reach a volume of 10 ml, or the limit of tolerability for the patient. After a wait of 1 min, they will attempt to aspirate the saline, and measure the difference between fluid in and fluid out. The study will also measure intrauterine pressure during the procedure.
Following the saline test, an HSG is done to assess tubal patency.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Literate in English
- •Ages 18-50 years
- •No history of infertility, and current regular menstrual cycles occurring every 24-37 days
- •At least one full-term vaginal delivery
- •Not be at risk for pregnancy
- •Be willing to undergo a one month washout period if using the pill, patch or ring, or a three month wash out period if using Depo-Medroxyprogesterone acetate (DMPA)
- •Willing to undergo intrauterine saline infusion followed by a single HSG procedure
- •Able to understand and sign approved study informed consent form
- •Willing to complete a pre-procedure questionnaire
排除标准
- •Currently pregnant as confirmed by positive high-sensitivity urine pregnancy test
- •Currently using an intrauterine device (IUD) or contraceptive implant
- •Hypersensitive to radio-opaque contrast
- •History of cesarean section
- •History of tubal ligation by a method other than Essure® or Adiana
- •History recognized as clinically significant by the investigator, such as symptoms of untreated or recent pelvic infection
结局指标
主要结局
Intrauterine Fluid Volume Lost
时间窗: 5 minutes
After placement of the hysterosalpingogram catheter, investigators use an infusion pump to deliver normal saline under continuous pressure monitoring until reaching one of the following endpoints: delivery of the entire volume of 10mL (milliliter); a peak pressure of 450mmHg (millimeters of Mercury); or the participant requested the infusion to stop due to intolerable discomfort. After one minute, investigators withdraw the delivered fluid through the hysterosalpingogram catheter and record the volume instilled and recovered. They then repeat the procedure using contrast under fluoroscopy to confirm tubal patency or occlusion.
次要结局
- Tolerance of 10 ml Saline Infusion(5 minutes)
研究者
Jeffrey Jensen
Principal Investigator
Oregon Health and Science University