Microvascular Effects of Intravenous Esmolol in Patients With Normal Cardiac Function Undergoing Postoperative Atrial Fibrillation: a Prospective Pilot Study in Cardiothoracic Surgery
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 25
- 主要终点
- effects of POAF without hemodynamic instability on near infrared spectroscopy (NIRS) parameters in combination with a vascular occlusion test
研究概览
简要总结
Background: Postoperative atrial fibrillation (POAF) is commonplace after cardiothoracic surgery. A rate control strategy by using short-acting beta blockers is recommended as a first-line therapy in patients without hemodynamic instability. Microcirculatory effects of POAF and esmolol have not been yet investigated. The investigators made the hypothesis that POAF without hemodynamic instability would induce microvascular dysfunction which could be reversed by intravenous esmolol.
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 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •conventional cardiac surgery
- •thoracic surgery
排除标准
- •Postoperative atrial fibrillation leading to hemodynamic instability
结局指标
主要结局
effects of POAF without hemodynamic instability on near infrared spectroscopy (NIRS) parameters in combination with a vascular occlusion test
时间窗: Day 7
NIRS parameters were restoration speed and desaturation speed. Desaturation speed and resaturation speed of the study were assessed during POAF without esmolol and after a stabilization period of 45 min between each dose of esmolol. An automated pneumatic cuff inflator was positioned at the upper extremity of the ipsilateral upper limb. After completion of a baseline set of measurements for each patient, a rapid arterial occlusion of the upper limb was provoked by inflation of the pneumatic cuff at 50 mmHg above the systolic arterial pressure, up to the StO2 value decreases to 40% or for a maximal period of 10 minutes. The arterial cuff was then rapidly deflated to initiate reperfusion.
次要结局
未报告次要终点