Characteristics of distal radial artery diameter and its related factors
and predictors
Abstract
Objective: The distal transradial access (dTRA) is a new access
for Coronary angiography (CAG) and percutaneous Coronary intervention
(PCI). The distal radial artery diameter is smaller than the radial
artery diameter. At present, there are very few studies about the
diameter of the distal radial artery. Methods: This is a
cross-sectional single-center study. A total of 106 hospitalized
patients were included. The distal radial artery diameters of the left
hand of all patients were measured. Clinical and ultrasound data were
collected. Results: The mean of the distal radial artery
diameter of all patients was 2.0586 ± 0.33 mm. According to the mean,
the patients were divided into two groups——diameter ≥ 2.0586 mm
group and diameter < 2.0586 mm group. By comparing the two
groups, the related factors and independent predictors of the distal
radial artery diameter ≥ 2.0586 mm were obtained. Male gender, height ≥
160 cm, weight ≥ 63 kg, body mass index (BMI) ≥ 24 kg/m2, and body
surface area (BSA) ≥ 1.6573 m2 were related factors. Male gender and BMI
≥ 24 kg/m2 were independent predictors. Conclusions: Male
gender and BMI ≥ 24 kg/m2 patients may have a larger distal radial
artery diameter.