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Needle Guide Improves Catheterization of Subclavian Vein

Multi-angle guide improves aligning needle and ultrasound plane compared with freehand technique

TUESDAY, Sept. 1, 2015 (HealthDay News) -- A multi-angle needle guide can improve ultrasound-guided catheterization of the subclavian vein, according to a study published online Aug. 28 in Anaesthesia.

Tim Maecken, M.D., from the BG University Hospital Bergmannsheil in Bochum, Germany, and colleagues conducted a randomized study to examine the impact of a multi-angle needle guide for ultrasound-guided, in-plane central venous catheter placement in the subclavian vein. A total of 160 patients were randomized to freehand or needle-guided technique; 159 catheterizations were analyzed.

The researchers found that in 96.9 percent of cases, cannulation of the first examined access site was successful, with no significant between-group difference noted. Three arterial punctures and no other severe injuries were identified. There was no between-group difference in catheter misplacements. In the needle-guided group there were higher success rates within the first and second attempts (P = 0.041 and 0.019, respectively). The access time was reduced with use of the needle guide (from 30 to 16 seconds; P = 0.0001), and needle visibility was increased (from 31.8 to 86.2 percent; P < 0.0001).

"A multi-angle needle guide significantly improved aligning the needle and ultrasound plane compared with the freehand technique when cannulating the subclavian vein," the authors write.

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