未经授权:中心静脉导管(CVC)尖端的位置对于减少并发症非常重要。我们研究的目的是使用穿刺部位与右第三肋间隙(PS-RTICS)之间的距离比较改良的Peres高度公式和界标方法,并开发出正确定位CVC尖端的可靠公式。
未经批准:此预期,随机研究是对400名男女患者进行的,18岁及以上,计划进行右颈内静脉插管。根据用于确定要插入的CVC长度的技术,将患者随机分为两组:A组,使用修改后的Peres\'高度公式,也就是说,患者身高(cm)/10-2和B组,使用PS-RTICS之间的距离并从中减去一个,即(PS-RTICS)-1。隆突被认为是CVC最佳插入的标志,这在术后胸部X光检查中得到证实。将如此获得的数据制成表格并进行分析。P<0.05的相关系数和回归系数具有统计学意义。
未授权:在A组中,插入导管的平均长度为15.18±0.73cm,导管尖端位于隆突远端2.41±0.85cm(P=0.001).在A组中98.45%的患者发现过度插入。在B组中,插入导管的平均长度为14.12±0.85cm,导管尖端位于隆突远端0.20±1.18cm.
UASSIGNED:尽管地标和修改后的Peres\'高度公式精度都很低,界标技术在预测右颈内静脉插管导管的正确深度方面具有优越性。
UNASSIGNED: The position of the tip of the central venous catheter (CVC) is important to minimise complications. The aim of our
study was to compare modified Peres\' height formula and landmark method using distance between puncture site and right third intercostal space (PS-RTICS) and to develop a reliable formula for correct positioning of tip of the CVC.
UNASSIGNED: This prospective, randomised
study was conducted on 400 patients of either gender, of age 18 years and older, scheduled to undergo right internal jugular venous cannulation. Depending on the technique used for deciding the length of CVC to be inserted, the patients were randomly allocated into two groups: Group A, using modified Peres\' height formula, that is, height of patient (cm)/10-2 and Group B, using distance between PS-RTICS and subtracting one from it, that is (PS-RTICS)-1. The carina was taken as the landmark for optimum insertion of CVC, which was confirmed on postprocedure chest X-ray. Data so obtained were tabulated and analysed. P<.05 was considered statistically significant for correlation and regression coefficients.
UNASSIGNED: In group A, the mean length of catheter inserted was 15.18 ± 0.73 cm and the catheter tip was found to be 2.41 ± 0.85 cm distal to carina (P =0.001). Over-insertion was found in 98.45% patients in group A. In group B, the mean length of catheter inserted was 14.12 ± 0.85 cm and the catheter tip was found to be 0.20 ± 1.18 cm distal to carina.
UNASSIGNED: Though both landmark and modified Peres\' height formula has low accuracy, landmark technique is superior in predicting correct depth of right internal jugular venous cannulation catheter.