PREANAESTHETIC ULTRASONOGRAPHIC MEASUREMENT OF RIGHT INFRACLAVICULAR AXILLARY VEIN FOR PREDICTING HYPOTENSION AFTER INDUCING GENERAL ANAESTHESIA– A PROSPECTIVE OBSERVATIONAL STUDY
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 82
- 试验地点
- 1
- 主要终点
- 1.To assess the association between preoperative infraclavicular axillary vein measurement and change in BP
研究概览
简要总结
Induction of anesthesia is associated with risk of hypotension as anesthetic agents have cardiovascular depressant and vasodilatory effects . Ultrasound examination of inferior venacava in patients with spontaneous respiration has been recommended as anon invasive method for estimation of volume status .However IVC assessment has limitations in patients with abdominal distension and tenderness. In this study we intend to measure the preoperative diameter and collapsibility index of right infraclavicular axillary vein during spontaneous breathing and deep inspiration and then examine whether these parameters could predict hypotension after induction of general anesthesia
研究设计
- 研究类型
- Observational
入排标准
- 年龄范围
- 19.00 Year(s) 至 60.00 Year(s)（—）
- 性别
- All
入选标准
- •Patients aged between 19 to 60 years , with American society of anaesthesiology (ASA) 1 and 2 statuses coming for elective surgery under General anaesthesia(GA) with endotracheal intubation.
排除标准
- •Patients who refuse participate, requirement for vasopressors to maintain a mean arterial blood pressure (MAP) greater than 65 mmHg, baseline MAP less than 70 mmHg, the proximal and /or distal axillary vein not clearly visualized , fracture of ipsilateral clavicle or anterior proximal ribs, axillary vein thrombosis, presence of major peripheral vascular disease, severe vascular disease, unstable angina, respiratory distress, implanted pacemaker/cardioverter, mental incompetence, tricuspid failure, right-sided heart disease, portal hypertension, increased intra-abdominal pressure or expectation of difficult intubation.
结局指标
主要结局
1.To assess the association between preoperative infraclavicular axillary vein measurement and change in BP
时间窗: Baseline
2. To predict the incidence of intraoperative hypotension and percentage decrease in Mean arterial pressure
时间窗: Baseline
次要结局
- Incidence of postoperative major cardiovascular events and associated mortality and morbidity(1 year)