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(Chest. 1995;107:1662-1664.)
© 1995 American College of Chest Physicians

Evaluation of Formulas for Optimal Positioning of Central Venous Catheters

Christine A. Czepizak MS, PA-C1; James M. O'Callaghan PA-C1; and Bahman Venus MD, FCCP1

1 From the Department of Critical Care Medicine, Colombia Memorial Hospital, Jacksonville, Fla.

Objective: To evaluate the accuracy of formulas designed to estimate the optimum intravenous length of central venous catheters.

Design: A prospective study of catheter insertion sites to evaluate the accuracy of predetermined formulas that predict the intravascular insertion length required to avoid intracardiac catheter tip placement.

Setting: A 320-bed tertiary hospital.

Patients: Critically ill patients requiring central venous access for therapy or monitoring.

Main results: The formulas accurately predicted required intravascular length of the central venous catheter in 217 of 228 (95%) cases. The formula for predicting catheter length was most accurate when the subclavian vein was used. It was least accurate when the right internal jugular vein was selected.

Conclusions: The formulas can accurately predict the required length of catheters and thereby reduce the possibility of complications and save time and expense.

Key Words: catheter • central venous access • tamponade • vascular erosion

Submitted on July 19, 1994
Accepted on October 7, 2007




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