Qiao Weiru, Qiao Liping, Li Dongdong, Wang Yuanyong, Ren Yaru, Liu Qiao, Wang Ying, Li Yufang, Wang Dongdong, Lv Feifei, Wu Rong, Shi Yuan, Hou Lihua, Yan Xiaolong
Department of Thoracic Surgery, Tangdu Hospital of Air Force Medical University, Xi'an, China.
Department of Orthopedics, Xianyang First People's Hospital, Xianyang, China.
J Vasc Access. 2025 Jul;26(4):1430-1434. doi: 10.1177/11297298241278384. Epub 2024 Sep 6.
Mirror people have difficulty with PICC placement due to inversion of organs. Intracavitary electrocardiography (IC-ECG) guided peripherally inserted central catheter (PICC) tip location technique has been widely applied in clinical practice.
Herein, we admitted a 59-year-old man diagnosed with esophageal cancer (EC). Chest X-ray and computed tomography (CT) revealed that the patient was with a mirror-image dextrocardia and situs inversus totalis: the heart and stomach located in the right side of the body, whereas the liver located in the left side. Echocardiography suggested that the apex of the heart pointed toward the right, while the left and right chambers were inverted. The relationship of the heart chambers, structure, and function were normal: left ventricular ejection fraction was 0.67, left atrial diameter was 31 mm, and heart output was 4.7 L/min. Surface ECG showed typical features of a dextrocardia: P-wave inverted on lead I. Amplitude of the R-wave and S-wave decreased gradually on lead chest from V1 to V5. Compared with the normal ECG image, the waves completely exchanged on lead II and III, so as on aVR and aVL.
Column of saline technique can assist operator estimate the tip position in real-time according to P-wave changes. When the height of P-wave reaches to its highest, it means that the tip of catheter has advanced to the target position of cavo-atrial junction (CAJ).
Patient was inserted catheter and no adverse events were reported.
Measuring the predicted length of catheter is still an indispensible procedure to help precisely adjusting the tip position in IC-ECG guided PICC. Our work provides both supplement for clinical data to facilitate further research and better understanding of special types of PICC to clinicians.
镜面人由于器官反转,经外周静脉穿刺中心静脉置管(PICC)操作困难。腔内心电图(IC-ECG)引导下的PICC尖端定位技术已在临床实践中广泛应用。
在此,我们收治了一名59岁被诊断为食管癌(EC)的男性患者。胸部X线和计算机断层扫描(CT)显示该患者为镜像右位心及全内脏转位:心脏和胃位于身体右侧,而肝脏位于左侧。超声心动图提示心脏心尖指向右侧,左右心室倒置。心腔的关系、结构及功能正常:左心室射血分数为0.67,左心房内径为31mm,心输出量为4.7L/min。体表心电图显示右位心的典型特征:I导联P波倒置。胸导联从V1到V5,R波和S波振幅逐渐降低。与正常心电图图像相比,II导联和III导联波形完全互换,aVR导联和aVL导联亦是如此。
生理盐水柱技术可辅助操作者根据P波变化实时估计尖端位置。当P波高度达到最高时,意味着导管尖端已推进到腔房交界(CAJ)的目标位置。
患者成功置管,未报告不良事件。
测量导管的预计长度仍是在IC-ECG引导下PICC精确调整尖端位置时不可或缺的步骤。我们的工作既为临床数据提供了补充,以促进进一步研究,也有助于临床医生更好地了解特殊类型的PICC。