Clinical Utility of Ultrasonographic Guidance for Arterial Catheterization in Patients with Obesity: A Randomized Controlled Trial
Authors' conclusion
The results of this study do not support the routine use of ultrasonography during radial arterial catheterizations for obese adults when junior practitioners perform the procedure.
Study context
- Population
- Adults with body mass index (BMI) ≥30 kg/m²; catheterization by anesthesia residents
- Participants
- 80 adults
- Comparison
- Ultrasound guidance vs Conventional palpation
- Primary endpoint
- First-attempt success rate of arterial catheterization
Methodological detailsprospective, single tertiary center
- Prospective
- Single tertiary center
Primary result
As reported in the abstract
P = 0.6331
Further findings
| Outcome | Mean difference (mm) (95% CI) | P value | |
|---|---|---|---|
| Radial artery skin-to-artery distance by BMI groupBMI 40-49 kg/m² vs BMI 30-39 kg/m² | 1.0 (0.4–1.7) | P = 0.0029 | |
| Radial artery skin-to-artery distance by BMI groupBMI ≥50 kg/m² vs BMI 30-39 kg/m² | 1.5 (0.6–2.4) | P = 0.0015 | |
| −10123Difference, mm (linear scale) |
Radial artery skin-to-artery distance by BMI group
- Similar findings for the brachial artery
Association of BMI with first-attempt success and time to successful catheterization
- BMI inversely associated with first-attempt success rates
- P = 0.0145
- BMI positively associated with time to successful catheterization
- P = 0.0271
Safety
Vascular complications · did not differ significantly
P = 0.6531
Original publication
Clinical Utility of Ultrasonographic Guidance for Arterial Catheterization in Patients with Obesity: A Randomized Controlled Trial. J Cardiothorac Vasc Anesth. Published 8 August 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →