Purpose: To validate the formula-based central venous catheter (CVC) length measurement “tailored” to individual's height and access site for predicting optimum SVC tip position.

Method: A prospective study of 3 percutaneous insertion sites (PICC, SCC and JC). Formula-based “LUM'S CVC MEASUREMENT GUIDE” was used to determine the catheter length.

Results: Overall, 97% (373) of the total 382 insertions were successfully placed with CVC tip in the distal SVC (SVC between carina and atrio-cava junction) location.

Conclusion: The “tailored fit” formula to individual patient height is a reliable tool to predict CVC length. Appropriate catheter length can greatly reduce the guesswork and possibility of complications related to tip malposition.

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