Radial Artery
Conditions
Keywords
anatomical snuffbox, distal radial artery, radial artery
Brief summary
Radial access is recommended as the standard approach for coronary angiography (CAG) and percutaneous coronary intervention (PCI) based on the evidence in which RA reduced mortality and bleeding events compared with femoral access. Recently, the use of distal radial artery (DRA) is rapidly increasing in accordance with the publication of several studies that have shown easy hemostasis, reduced bleeding complications and low arterial occlusion rate via distal radial approach. However, the diameter of DRA is relatively smaller than radial artery (RA) which can limit the widespread use of this access route. Regarding the size discrepancy, there is a lack of evidence to guide which patients are acceptable or not for CAG and PCI. Therefore, the main purpose of this study was to provide the reference diameter of DRA using ultrasonography in Korean patients. The clinical predictors for small DRA also were evaluated.
Detailed description
Radial access is recommended as the standard approach for coronary angiography (CAG) and percutaneous coronary intervention (PCI) based on the evidence in which RA reduced mortality and bleeding events compared with femoral access. Recently, the use of distal radial artery (DRA) is rapidly increasing in accordance with the publication of several studies that have shown easy hemostasis, reduced bleeding complications and low arterial occlusion rate via distal radial approach. However, the diameter of DRA is relatively smaller than radial artery (RA) which can limit the widespread use of this access route. Regarding the size discrepancy, there is a lack of evidence to guide which patients are acceptable or not for CAG and PCI. Therefore, the main purpose of this study was to provide the reference diameter of DRA using ultrasonography in Korean patients. The clinical predictors for small DRA also were evaluated. Assessment of arterial diameter by ultasonography Patients were lying on the bed with relaxation in an quiet room. The outer diameters of both DRA and RA were assessed by a perpendicular angle using a linear ultrasound probe (3-4-10.8 MHz) and the average values were recorded. The diameter of RA was measured from 2-3 cm above wrist crease. Anatomical landmark for the measurement of DRA was the bony surface area just distal space from extensor pollicis longus tendon in which the DRA was best palpable then runs down between the first metacarpal and second metacarpal bone (just out of anatomical snuffbox area)
Interventions
PROCEDUREUltrasonography
The diameters of both the radial artery and the distal radial artery were measured by ultrasonography.
Sponsors
Wonju Severance Christian Hospital
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Patients planned to perform transthoracic echocardiography with arterial ultrasonography
Exclusion criteria
* Age under 20-year * Poor image quality * repeated measurement
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The diameter of distal radial artery | Through ultrasonographic evaluation (within 1 hour) | Mean diameter of distal radial artery on both left and right hand |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The diameter of radial artery | Through ultrasonographic evaluation (within 1 hour) | Mean diameter of radial artery on both left and right hand |
| Arterial diameter index | Through ultrasonographic evaluation (within 1 hour) | Diameter of measure artery divided by body surface area |
| Proportion of small distal radial artery | Through ultrasonographic evaluation (within 1 hour) | Proportion of small distal radial artery (\<2.3mm) |
| Predictor for small distal radial artery | Through ultrasonographic evaluation (within 1 hour) | Clinical predictor associated with small distal radial artery |
Countries
South Korea
Outcome results
None listed