Use of smart glasses for ultrasound-guided central venous catheterization in adults: a randomized clinical trial
Main finding · Overall CVC procedural timeResult — go to the resultMedian difference (reduced in the smart glasses group) 26.0 s 95% CI [16.0-37.0]Authors' conclusion
Smart glasses modestly improved procedural efficiency in ultrasound-guided CVC, potientially for novices, without improving success or complication rates. Larger-sample studies with more diverse operators and patients are warranted.
Study context
- Population
- Adult patients who underwent elective surgery requiring central venous catheterization (CVC)patients analyzed
- Participants
- 124 patients
- Exposure
- Smart glasses vs conventional ultrasound-guided CVC
- Outcome
- Overall CVC procedural time
Methodological detailsstratified randomization according to operator qualification, randomized clinical trial
- Stratified randomization according to operator qualification
- Randomized clinical trial
Main finding
As reported in the abstract
Median difference (reduced in the smart glasses group)
26.0 s
95% CI [16.0-37.0]
P < 0.001
Observational data: associations, not effects.
Secondary outcomes
| Outcome | Estimate | P value |
|---|---|---|
| Ultrasound scanning time | median difference (reduced in the smart glasses group) 3.0 s | P = 0.004 |
| Venous access time | median difference (reduced in the smart glasses group) 2.0 s | P = 0.013 |
| Number of needle redirections | median difference (reduced in the smart glasses group) 1.0 | P = 0.003 |
| Number of probe repositionings | median difference (reduced in the smart glasses group) 0.0 | P = 0.005 |
Procedural success rate
- Comparable between groups
Safety
Complication rate
- Comparable between groups
Original publication
Use of smart glasses for ultrasound-guided central venous catheterization in adults: a randomized clinical trial. J Clin Anesth. Published 3 October 2026. doi:10.
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