ORIGINAL ARTICLE
Year : 2016  |  Volume : 10  |  Issue : 3  |  Page : 255-258

Depth of insertion of right internal jugular central venous catheter: Comparison of topographic and formula methods


1 Department of Anesthesiology, Bangalore Medical College and Research Institute, Bengaluru, Karnataka, India
2 Department of Anesthesiology, MS Ramaiah Medical College and Hospitals, Bengaluru, Karnataka, India

Correspondence Address:
C A Tejesh
Department of Anesthesiology, MS Ramaiah Medical College, Bengaluru, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1658-354X.174904

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Background: Central venous catheters (CVCs) are inserted in many critically ill patients, but there is no gold standard in estimating their approximate depth of insertion. Many techniques have been described in literature. In this study, we compare the topographic method with the standard formula technique. Materials and Methods: 260 patients, in whom central venous catheterization was warranted, were randomly assigned to either topographic method or formula method (130 in each group). The position of the CVC tip in relation to carina was measured on a postprocedure chest X-ray. The primary endpoint was the need for catheter repositioning. Results: The majority of the CVCs tips positioned by the formula method were situated below the carina, and 68% of these catheters required repositioning after obtaining postprocedure chest X-ray (P < 0.001). Conclusion: The topographic method is superior to formula approach in estimating the depth of insertion of right internal jugular CVCs.


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