桡动脉入路穿刺前检查1. AIIen,s试验被选择进行经桡动脉入路的患者首先应该进行手掌侧支循环的评估，以避免缺血并发症。通常包括Allen's试验和Barbeau 试验
若15秒后手掌仍未转红，为Allen , s试验为阳性，说明尺动脉在侧枝循环差，不能 做桡动脉穿刺和插管。
选桡动脉穿刺时应先做Allen试验。
2. Barbeau-test
Assess ulnar artery collateralization in case of a radial occlusion
Pre-procedure assessment: Barbeau test
考虑合适的的患者只有A型或B型波形。 |
 |
 |
| Normal anatomy |
High bifurcation
|
 |
 |
| TRA显示桡动脉的高分叉（红线） |
 |
 |
|
Radial Artery Loop
|
Tortuous Radial Artery |
经桡动脉入路用于周围动脉治疗-解剖上的考虑
RADIAL ACCESS FOR PERIPHERAL ARTERIAL THERAPY – ANATOMICAL CONSIDERATIONS
RADIAL ACCESS FOR PERIPHERAL ARTERIAL THERAPY – ANATOMICAL CONSIDERATIONS
1. 对于锁骨下动脉、椎动脉和某些颈动脉（经桡动脉）路径更近，导管支持更好
Better proximity and catheter support for subclavian, vertebral, and certain carotid.
Better proximity and catheter support for subclavian, vertebral, and certain carotid.
2. 更容易进入肾动脉和肠系膜上动脉 Easier access for renal and mesenteric vessels.
3. 髂动脉和近端股浅动脉，从手臂当对侧疾病或髂动脉分叉疾病更容易进入iliac and proximal superficial femoral artery, are more accessible from the arm when there is contralateral disease or if the iliac bifurcation is hostile.