Ultrasonographic Assessment of Neck Vessels as Predictors of Spinal Anesthesia Induced Hypotension in Elderly
Pre-anesthetic Ultrasonographic Assessment of Neck Vessels as Predictors of Spinal Anesthesia Induced Hypotension in Elderly: a Prospective Observational Study.
Spinal anesthesia induces sympathetic blockade and venodilation, thus reducing venous return and the cardiac output. Therefore, assessment of intravascular volume deficit before anesthesia might predict a critical decrease in blood pressure after anesthesia.
Recently, ultrasonographic evaluation of the internal jugular vein (IJV) has been used to reflect intravascular volume status and fluid and as a predictor of hypotension after induction of general anesthesia.
Carotid intima-media thickness (CIMT) has been used to predict atherosclerosis-related events, such as stroke, myocardial infarction, peripheral artery disease, and hypotension after induction of anesthesia with a cut-off value of 0.65 mm of CIMT as a threshold level.
研究概览
地位
条件
详细说明
This study aims to evaluate the ability of preoperative Ultrasonographic assessment of the internal jugular vein (IJV) and Carotid intima-media thickness (CIMT) to predict spinal anesthesia induced hypotension (SAIH).
Participants will be elderly patients (above 60 years), ASA I-II-III, scheduled for elective surgeries under spinal anesthesia.
研究类型
注册 (实际的)
联系人和位置
学习地点
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Cairo、埃及
- Kasr Alainy Hospital
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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
取样方法
研究人群
描述
Inclusion Criteria:
- Adult patients (>60 years)
- ASA I-II-III
- Patients scheduled for elective surgeries under spinal anesthesia.
Exclusion Criteria:
- Operations which will last for less than 15 minutes.
- Deep vein thrombosis in the upper extremities.
- History of radiotherapy or neck surgery.
- Previous sonographic data show tricuspid or mitral regurgitation or a very distended right atrium and ventricle.
- Patients with history of valvular or carotid artery surgery, arrhythmia, heart failure.
- Being unable to lie in a supine position for the necessary measurements.
- Technical limitations to imaging of the IJV and carotid artery.
学习计划
研究是如何设计的？
设计细节
- 观测模型：队列
- 时间观点：预期
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 |
|---|---|---|
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Accuracy of IJV collapsibility index as predictor of Spinal anesthesia induced hypotension.
大体时间：10 minutes
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(Area under receiver operating characteristic curves)
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10 minutes
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Accuracy of rate of change in IJV area with change in posture as a predictor of Spinal anesthesia induced hypotension.
大体时间：10 minutes
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(Area under receiver operating characteristic curves)
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10 minutes
|
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Incidence of Spinal anesthesia induced hypotension
大体时间：20 minutes
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Change in mean arterial blood pressure 25% less than the preoperative baseline level.
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20 minutes
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Carotid intima media thickness.
大体时间：10 minutes
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IMT is measured as the distance between lumen-intima and media-adventitia interfaces
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10 minutes
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Norepinephrine consumption
大体时间：20 minutes
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the total dose of norepiniphrine and number of boluses
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20 minutes
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合作者和调查者
调查人员
- 首席研究员：Bassant abdelhamid、Cairo University
出版物和有用的链接
一般刊物
- Singh Y, Anand RK, Gupta S, Chowdhury SR, Maitra S, Baidya DK, Singh AK. Role of IVC collapsibility index to predict post spinal hypotension in pregnant women undergoing caesarean section. An observational trial. Saudi J Anaesth. 2019 Oct-Dec;13(4):312-317. doi: 10.4103/sja.SJA_27_19.
- Pre-operative ultrasonographic evaluation of inferior vena cava collapsibility index and caval aorta index as new predictors for hypotension after induction of spinal anaesthesia: A prospective observational study: erratum. Eur J Anaesthesiol. 2019 Nov;36(11):888. doi: 10.1097/EJA.0000000000001094. No abstract available.
研究记录日期
研究主要日期
学习开始 (实际的)
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 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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