Evaluation of external and radiological landmark methods for optimizing ultrasound-guided right internal jugular venous catheterization depth in cardiac surgery
Abstract The formula-based estimation of the right internal jugular venous (IJV) catheterization depth can be inaccurate when using ultrasound guidance. External landmark-based and radiological landmark-based methods have been proposed as alternatives to estimate the insertion depth. This study aime...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-85906-2 |
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| Summary: | Abstract The formula-based estimation of the right internal jugular venous (IJV) catheterization depth can be inaccurate when using ultrasound guidance. External landmark-based and radiological landmark-based methods have been proposed as alternatives to estimate the insertion depth. This study aimed to evaluate these methods using transesophageal echocardiography (TEE)-guided insertion depth as the reference. Ninety-seven adult cardiac surgery patients underwent real-time ultrasound-guided right IJV catheterization, with placement at the superior vena cava-right atrium (SVC-RA) junction under TEE guidance. The primary outcome compared the accuracy of external-landmark and radiological-landmark methods in estimating optimal catheter position (2 cm above to 1 cm below the SVC-RA junction), while secondary outcomes assessed their reliability and agreement with TEE. The external-landmark method proved more accurate than the radiological-landmark method (91.8% vs. 68%, p < 0.001) and had a higher correlation with TEE (r = 0.83 vs. 0.67). Bland–Altman analysis showed a mean difference of 0.08 cm between external-landmark and TEE methods (limits of agreement: -1.75 to 1.90 cm) and 0.43 cm for radiological-landmark (limits of agreement: -2.63 to 3.49 cm). Overall, the external-landmark method is a reliable and simple technique for estimating right IJV catheter depth and is more useful in cardiac surgery compared to the radiological-landmark method. Trial registration Thai Clinical Trials Registry (TCTR20200410012). Date registered April 9, 2020. |
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| ISSN: | 2045-2322 |