Formula based on X ray chest and ultrasound may help place CVC tip successfully during axillary vein cannulation
Maintaining a central venous catheter tip in a secure position is crucial. There are a number of methods for calculating an approximate catheter insertion length in both the subclavian and internal jugular veins. However, the techniques for calculating the axillary route insertion length have not been verified. A recently published research tested a straightforward approach to estimating catheter insertion length to see whether it reliably forecasts where the catheter tip should be placed.
The axillary vein (AxV) was successfully cannulated in 60% of the 102 patients who needed central venous cannulation before surgery. By measuring the clavicular length (A), the vertical distance between the sternal head and carina (B), and the perpendicular distance from the skin to the AxV (Y), we were able to determine the insertion length. The precise location of the tip (2 cm above the carina to 0.5 cm below it) was evaluated using a postoperative CXR. Successful placement of the central venous catheter (CVC) in terms of the right location of the catheter tip was the main result of the research when the insertion length was predicted using the formula mentioned above. Eighty-three percent of the time, the location was just right. Female patients (P = 0.03) and shorter patients (P = 0.01) had a significantly greater accuracy rate. High levels of concordance were shown via a Bland-Altman scatter plot.
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