Not involved
Conditions
Interventions
Traditional Ultrasound Group: In the Traditional Ultrasound Group , the operators viewed real-time images on the ultrasound screen , while maintaining all other conditions identical to the smart glass
Smart Glasses Group:In the smart glasses group, the operators wore smart glasses and viewed ultrasound images displayed on the glasses screen instead of the ultrasound screen. The operators were free
Sponsors
The Second Affiliated Hospital of Anhui Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: Age>=18 years old; BMI>30kg/m^2; ASA grade II.~III.; Planned elective surgery under general anesthesia requiring invasive blood pressure monitoring; agree to participate and sign the informed consent form;
Exclusion criteria
Exclusion criteria: Refusal to participate in the study;Positive Allen’s test or modified Allen’s test;Recent arterial puncture at the radial artery site;Nerve injury, hematoma, or infection at the puncture site;Peripheral vascular disease;Coagulation disorders;Psychiatric conditions affecting cooperation;History of chronic pain;Unstable vital signs;Allergy to local anesthetics or ultrasound gel.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| First-attempt success of catheterization; | — |
Secondary
| Measure | Time frame |
|---|---|
| Procedure time to success within the first attemp;Second attempt success rate;Procedure time to success within the second attempt;Use of the transfixion technique;Overall number of attempts;Overall procedure time of arterial cannulation;Number of ultrasound probe repositioning;Catheter malfunction;Ultrasonic localization time;Number of needle redirections;Frequency of operator's glances at ultrasound display;Operator's ultrasound screen viewing time;Total operator-patient eye contact time;Pre- and post-catheterization radial artery depth & diameter;Incidence of arterial needle absence in imaging;Patient NRS scores and satisfaction;Operator satisfaction;Operator's willingness to reuse ultrasound smart glasses and recommendation intention to colleagues;Total complication rate of first-attempt arterial puncture (including hematoma, vasospasm, distal ischemia, etc.)%;Long-term complications; | — |
Countries
China
Contacts
Public ContactYun Wu
The Second Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province
Outcome results
None listed