目的分析Ⅲ导联联合心电定位在左侧入路经外周静脉穿刺中心静脉置管(peripherally inserted central venous cathe‐terization,PICC)中的应用效果。方法选取2016年9月至2018年6月本院行左侧入路PICC置管的60例患者,随机分为对照组与观...目的分析Ⅲ导联联合心电定位在左侧入路经外周静脉穿刺中心静脉置管(peripherally inserted central venous cathe‐terization,PICC)中的应用效果。方法选取2016年9月至2018年6月本院行左侧入路PICC置管的60例患者,随机分为对照组与观察组,各30例。对照组患者PICC置管过程中采用Ⅱ导联联合心电定位,观察组患者PICC置管过程中应用Ⅲ导联联合心电定位,经统计学处理比较两组患者的心电定位成功率。结果观察组患者中出现特征性P波28例(93.3%),未出现特征性P波或P波无改变2例(6.7%),其心电定位成功率明显高于对照组,差异具有统计学意义(P<0.05);观察组心电定位成功患者导管尖端为最佳位置25例(89.3%),置入过深1例(3.6%),置入过浅2例(7.1%)其导管尖端位置明显好于对照组,差异具有统计学意义(P<0.05)。结论在左侧入路PICC患者中应用Ⅲ导联联合心电定位具有良好可行性,能够提高心电定位成功率,并改善导管尖端位置,避免了由于反复调整尖端位置而对患者形成的身心损害,促进其静脉通道应用的安全程度。展开更多
ST-segment elevations in the right ventricular lead and those greater in lead Ⅲthan in lead Ⅱstrongly suggest that right, rather than left circumflex, coronary arterial occlusion occurs in acute myocardial infarctio...ST-segment elevations in the right ventricular lead and those greater in lead Ⅲthan in lead Ⅱstrongly suggest that right, rather than left circumflex, coronary arterial occlusion occurs in acute myocardial infarction in the inferior wall. Our study demonstrated that, in the very early stages of infarction, a T wave amplitude that is greater in lead Ⅲthan in lead Ⅱand an upright or positive biphasic T wave in lead V5R are just as predictive as ST-segment changes and are often easier to measure.展开更多
文摘目的分析Ⅲ导联联合心电定位在左侧入路经外周静脉穿刺中心静脉置管(peripherally inserted central venous cathe‐terization,PICC)中的应用效果。方法选取2016年9月至2018年6月本院行左侧入路PICC置管的60例患者,随机分为对照组与观察组,各30例。对照组患者PICC置管过程中采用Ⅱ导联联合心电定位,观察组患者PICC置管过程中应用Ⅲ导联联合心电定位,经统计学处理比较两组患者的心电定位成功率。结果观察组患者中出现特征性P波28例(93.3%),未出现特征性P波或P波无改变2例(6.7%),其心电定位成功率明显高于对照组,差异具有统计学意义(P<0.05);观察组心电定位成功患者导管尖端为最佳位置25例(89.3%),置入过深1例(3.6%),置入过浅2例(7.1%)其导管尖端位置明显好于对照组,差异具有统计学意义(P<0.05)。结论在左侧入路PICC患者中应用Ⅲ导联联合心电定位具有良好可行性,能够提高心电定位成功率,并改善导管尖端位置,避免了由于反复调整尖端位置而对患者形成的身心损害,促进其静脉通道应用的安全程度。
文摘ST-segment elevations in the right ventricular lead and those greater in lead Ⅲthan in lead Ⅱstrongly suggest that right, rather than left circumflex, coronary arterial occlusion occurs in acute myocardial infarction in the inferior wall. Our study demonstrated that, in the very early stages of infarction, a T wave amplitude that is greater in lead Ⅲthan in lead Ⅱand an upright or positive biphasic T wave in lead V5R are just as predictive as ST-segment changes and are often easier to measure.