超声引导下桡动脉穿刺置管

大于女性,长期从事体力活动的更粗大文献:硬化的动脉更容易引起血管痉挛SaitoS,etInfluenceoftheratiobetweenradialarteryinnerdiameterandsheathouterdiameteronradialarteryflowaftertransradialcoronaryintervention.CatheterCardiovascInterv1999;46:173–8.血压正常血压情况下,动脉充盈、饱满容易触及或显影血压低于80mmHg,动脉会变扁平,触摸法相对困难,远端加压起到一个局部相对充盈的桡动脉升压药?休克状态相对血管扩张最佳手腕位置最佳的手腕位置:45°。Forty-fivedegreewristangulationisoptimalforultrasoundguidedlongaxisradialarterycannulationinpatientsover60yearsold:arandomizedstudy.AhmetKucuk.et.put(2014)28:567–essful(n=75)failed(n=25)pHeight(mm)3.02±0.532.49±3.48<0.001Skindistance(mm)2.63±0.642.58±0.590.71AhmetKucuk.et.Forty-fivedegreewristangulationisoptimalforultrasoundguidedlongaxisradialarterycannulationinpatientsover60yearsold:arandomizedstudy.put(2014)28:567–572皮肤至动脉浅壁的深度太浅:无法起到引导的作用T皮肤至动脉浅壁的深度太深:穿刺针血管外路径太长,缩短穿刺针管外距离会增加针和血管的角度T