Evaluation of Lateral Sagittal Infraclavicular Block According to Vena Cava Inferior Collapsibility Index (VCI-CI): An Observational Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- Doppler flow change from baseline to postoperative period
研究概览
简要总结
In patients with fluid deficit, vasoconstriction occurs in peripheral tissues and blood circulation is kept in the central area. It causes arterial vasodilation and hemodynamic variability by increasing the blood volume of the extremity due to the sympathectomy occurring after the block. When the investigators classify patients according to VCI-CI, it will be questioned whether there is a difference between patients' block quality and hemodynamic variability.
详细描述
VCI-CI helps us to have an idea about the amount of fluid in patients according to the vena cava Inferior (VCI) diameter and the diameter between the inspiring and expiration. Low arterial diameter and high inspiratory and expiratory variability indicate that the patient's fluid volume may be lower.
In the measurement of VCI diameter, VCI has visualized in the craniocaudal plane thanks to the transverse ultrasound probe. Changes in VCI diameter are observed depending on the negative pressure in the thoracic area during inspiration and expiration. When the difference between this rate of change is greater than 50%, it indicates that the patient has a fluid deficit. The fact that the VCI diameter is also below 1.5 cm indicates that this amount of fluid requirement is more serious. In this study, the investigators will question whether there is a difference between patients' block quality and hemodynamic variability when they classify patients according to VCI-CI.
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 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- •Contraindication for central or peripheral blocks
- •Cognitive dysfunction
- •History of chronic opioid use
- •severe organ dysfunction
- •Allergy to any drug used in the study
- •Body mass index (BMI) ≥30
- •Infection in the area to be treated
- •Refusal to participate in the research
结局指标
主要结局
Doppler flow change from baseline to postoperative period
时间窗: Perioperative period
Before the block, with the help of 8-12 mHz linear probe, the axillary artery of the patients will be determined in the lateral sagittal plane and their diameters at the time of systole and diastole will be determined. After the arterial diameters are determined, the probe will be positioned to view the artery in a linear line with 90 degree rotation. After imaging the axillary artery in the long axis, confirming it with 5 sequential flows in B-mode Doppler, PSV (Peak systolic velocity), EDV (End diastolic velocity), mV (mean velocity), RI index and PI index probe angulation at 30-60 degree angle, ultrasound will be measured automatically. After the block, the sensory and motor block times of the patients were determined and these times were recorded.
次要结局
- VAS (Visual Analog Scala) score(Postoperative 24th hour)
- Postoperative nausea and vomiting(Postoperative 24th hour)
- Analgesic consumption(Postoperative 24th hour)
研究者
Ergün Mendeş
Principal Investigator
Başakşehir Çam & Sakura City Hospital