Subclavian -Infraclavicular Axillary vein collapsibility index as predictor of hypotension after subarachnoid block in lower limb surgeries in geriatric patients - A prospective observational study.
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 164
- 试验地点
- 1
- 主要终点
- Determine the ability of SVCI to predict hypotension after sub-arachanoid block (SAB) in geriatric patients.
研究概览
简要总结
Ultrasonography of right subclavian vein (SCV) will be performed in supine position to visualise the SCV or infraclavicular axillary vein(AV) in short axis view.
Short axis view of the vein will be obtained while the patient is breathing normal (spontaneous breathing) and while breathing deep (deep breathing) .
Minimum and maximum diameters of the SCV or AV (dSCVmin and dSCVmax, respectively will be assessed in M-mode at a medium sweep speed and collapsibility index (CI) will be calculated as (3).
(dSCVmax-dSCVmin)/dSCVmax × 100
研究设计
- 研究类型
- Observational
入排标准
- 年龄范围
- 60.00 Year(s) 至 99.00 Year(s)（—）
- 性别
- All
入选标准
- •American society of anaesthesiologist physical status I , II , III.
排除标准
- •1.Refusal to participate.
- •2.Requirement for vasopressors to maintain a mean arterial blood pressure ( MAP) greater than 65mmhg, baseline MAP less than 70 mmhg.
- •3.Presence of major peripheral vascular disease , severe valvular disease , right sided heart failure , respiratory distress.
- •Hepatic or renal disorders .
- •Absolute contraindication to spinal block.
结局指标
主要结局
Determine the ability of SVCI to predict hypotension after sub-arachanoid block (SAB) in geriatric patients.
时间窗: Every 2 minutes after SAB.
To calculate the sensitivity and specificity of SVCI in predicting hypotension.
时间窗: Every 2 minutes after SAB.
次要结局
- To investigate the relationship between SVCI & haemodynamic changes.(To identify the risk factors for hypotension after SAB.)
研究者
Vandana rana
Graphic era institute of medical sciences