Gastric Ultrasound in Pregnant Women at Term
Qualitative Ultrasound Assessment of the Gastric Content of Pregnant Women at Term
研究概览
详细说明
Food residue in the stomach of patients scheduled to have surgery is considered a major risk factor for pulmonary aspiration of gastric contents. The resulting respiratory compromise after aspiration is associated with significant morbidity and mortality. The risk of pulmonary aspiration is especially important in pregnant women, as they may often require surgery without having observed appropriate fasting. A bedside ultrasound assessment fo the status of the gastric content would be of great value for the clinician. This technique has recently been shown very promising in non-pregnant patients and it is important to study its feasibility in the pregnant population.
In this study, patients fast overnight and are randomized to the following groups: empty, fluid (250 mL of apple juice before scanning) or solid (full breakfast). Their gastric contents are then assessed by 3 different anesthesiologists, using ultrasound. At the end of the scanning, the true stomach contents are revealed. The ability of the assessors to accurately predict stomach contents, as well as the inter-observer agreement, will be examined.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
-
-
Ontario
-
Toronto、Ontario、加拿大、M5G 1X5
- Mount Sinai Hospital
-
-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Volunteer non-laboring pregnant women >32 weeks gestation
- 18 years or older
- ASA status I-III
- Weigh between 50 and 120kg
- Height at least 150cm or taller
- Written informed consent
Exclusion Criteria:
- Known pre-existing abnormal anatomy of the upper GI tract
- Protocol violation
学习计划
研究是如何设计的?
设计细节
- 主要用途:诊断
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:单身的
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
其他:Empty stomach
Patients have fasted for 8 hours.
|
overnight fast
|
其他:Fluid
Patients have fasted for 8 hours, followed by the consumption of 250mL of apple juice.
|
250mL apple juice
|
其他:Solid
Patients have fasted for 8 hours, followed by the consumption of their breakfast.
|
breakfast
|
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Reliability of the ultrasonographic diagnosis of the gastric status
大体时间:30 minutes
|
Three physicians trained in gastric ultrasound will be blinded to the treatment group the patient was in, perform an ultrasound, and try to guess whether the patient has an empty stomach, consumed fluids only, or consumed a full meal.
|
30 minutes
|
次要结果测量
结果测量 |
大体时间 |
---|---|
Inter-observer agreement of gastric content diagnosis
大体时间:30 minutes
|
30 minutes
|
合作者和调查者
出版物和有用的链接
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.