PDF(Pubmed)
Abstract：
This prospective observational study investigated the optimal insertion depth of the central venous catheter through the right internal jugular vein using transesophageal echocardiography. After tracheal intubation, the anesthesiologist inserted a probe for esophageal echocardiography into the patient\'s esophagus. The investigators placed the catheter tip 2 cm above the superior edge of the crista terminalis with echocardiography, which was defined as the optimal point. We measured the inserted length of the catheter. Pearson correlation tests were performed with the measured optimal depth and some patient parameters. We made a new formula for placing the catheter at the optimal position. A total of 89 subjects were enrolled in this trial. The correlation coefficient between the measured optimal depth and the patient\'s parameters was the highest for patient height (0.703, p < 0.001). We made a new formula of \'height (cm)/10 - 1.5 cm\'. The accuracy rate of this formula for the optimal zone was 71.9% (95% confidence interval; 62.4 - 81.4%), which was the highest among the previous formulas or guidelines when we compared. In conclusion, the central venous catheter tip was evaluated with transesophageal echocardiography, and we could make a new formula of \'height (cm)/10 - 1.5\', which seemed to be better than other previous guidelines.
摘要：
这项前瞻性观察性研究使用经食道超声心动图研究了中心静脉导管通过右颈内静脉的最佳插入深度。气管插管后,麻醉师在病人的食道中插入了一个食道超声心动图探针。研究人员用超声心动图将导管尖端放置在cristaterminalis上边缘上方2cm处，它被定义为最佳点。我们测量了导管的插入长度。使用测得的最佳深度和一些患者参数进行Pearson相关性测试。我们提出了将导管放置在最佳位置的新公式。共有89名受试者参加了该试验。测量的最佳深度与患者身高参数之间的相关系数最高（0.703，p<0.001）。我们做了一个新的公式\'高度（厘米）/10-1.5厘米\'。该公式对最优区的准确率为71.9%(95%置信区间;62.4-81.4%),当我们比较时，这是以前的公式或指南中最高的。总之,经食管超声心动图评估中心静脉导管尖端,我们可以做一个新的公式\'高度（厘米）/10-1.5\'，这似乎比以前的其他指导方针更好。
