Comparison of the Effect of Mammary Artery Harvesting Technique to Sternal Blood Supply Using Non-contact Dynamic Thermography
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 90
- 试验地点
- 1
- 主要终点
- Rewarming time difference
研究概览
简要总结
The skeletonization technique of left internal artery (LIMA) harvesting is reported as more spar-ing to the vascular supply of the sternum. Some studies report a greater length and greater flow of the graft additionally. The aim of our study was to measure the difference in post-op sternal blood supply compared to the pedicle harvesting technique and to measure the length and flow of the LIMA graft.
详细描述
A total of 90 patients were examined in a prospective randomized study. In 60 patients referred for coronary artery bypass grafting (CABG), LIMA was harvested, one-half (n=30) skeletonized, and one-half (n=30) with a pedicle. Thirty patients operated via sternotomy without LIMA harvesting (other procedures, for instance, valve surgery) were the control group. In patients undergoing LIMA harvest, harvest duration, graft length, and graft free flow were measured at defined arterial pressure. In all patients, the sternal blood flow was examined by active dynamic thermography (DIRT): first preoperatively and on 4th postoperative day. During this, the time of spontaneous rewarming of the skin surface after the application of a cold stimulus was measured in the caudal part of the sternum. The difference between postoperative and preoperative time was calculated and compared between groups.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 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
- •Elective cardiac surgery procedure via median sternotomy
- •The left mammary artery (LIMA) harvesting for coronary bypass planned as a part of the operation - Group 1 and 2
- •Other cardiac surgery procedures without the LIMA harvesting (valve surgery for instance) - Control group
- •Signing of the informed consent
排除标准
- •Emergent surgery
- •Re-operation
- •Re-sternotomy
- •Thoracotomy approach
- •Harvesting of both mammary arteries (BIMA)
- •Endocarditis
- •Ongoing non-cardiac infection
- •Circulatory failure
- •Ongoing administration of catecholamines to patient
- •Unsigned informed consent
结局指标
主要结局
Rewarming time difference
时间窗: first preoperatively and on 4th postoperative day
Duration of spontaneous rewarming of the skin surface of the caudal sternum after a cold stimulus, measured from 24°C to 27°C. Unit: seconds (s)
次要结局
- Free outflow of the mammary artery(during surgery, just before the graft use)
- Length of the mammary artery graft(during surgery, immediately after the graft harvesting)
- Duration of the mammary graft harvesting(during surgery, immediately after the graft harvesting)