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Ultrasound guided percutaneous central venous access using a head-up display - A feasibility study
Anne-Sophie Holler1, Luise Marie Böhm2, Oliver J Muensterer1
1Department of Pediatric Surgery, Dr. von Hauner Children's Hospital, LMU University Hospital, Munich, Germany.
Background:
Ultrasound guidance for percutaneous central venous access (CVA) insertion has become standard of care. Due to the design of ultrasound devices, the screen is usually positioned in an unergonomic location. In this study, we evaluated the use of a head-up display (HUD) to project the ultrasound image above the eye of the surgeon, overcoming the above limitations.
Methods:
Children 0-18 years of age who required CVA were randomized to ultrasound-guided percutaneous cannulation with (+HUD) or without a HUD (-HUD) projecting the live ultrasound image. Patient demographics, time and number of attempts, and complications were recorded.
Results:
A total of 40 patients were randomized in the study, 20 in each group. Patient age, weight, height and gender were equally distributed. There was no statistically significant difference in time to first successful intravenous access (+HUD: 43.13sec.
, -Hud:
30.02sec., p = 0.38) and number of attempts for cannulation (+HUD: 1/2/3/4 attempts: 80 %/15 %/0/5 %, -HUD: 1/2/3/4 attempts: 85 %/10 %/5 %/0 %, p = 0.53). There were minor complications in the +HUD group in 25 %, and 10 % in the -HUD group (p = 0.21).
Conclusion:
This study showed that using a HUD for ultrasound-guided CVA is an ergonomic alternative with comparable results to the standard approach. It is easily implementable in most settings. More future studies on the ergonomic impact of using a HUD for this and other pediatric surgical applications are warranted.
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