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Objective <p>The study aims to investigate how the radial artery diameter (RAD) predicts post-procedural radial artery occlusion (RAO) in patients undergoing transradial coronary catheterization (TRC).</p> Background <p>RAO is the most frequent complication of TRC. However, the cut-off value of RAD for predicting RAO remains uncertain.</p> Methods <p>A total of 2073 patients undergoing TRC were consecutively screened, and 1023 were enrolled. The participants were divided into 6 French (Fr) coronary angiography (CAG), 6 Fr percutaneous coronary intervention (PCI), and 7 Fr PCI groups. Ultrasound examination was performed before and after the procedure to measure RAD and to assess RAO. The primary endpoint was the rate of RAO at 12–24&#xa0;h post-TRC.</p> Results <p>RAO was observed in 11.2% (115/1023) of patients. RAO was significantly lower in the 6 Fr PCI group than in the 6 Fr CAG and 7 Fr PCI groups (6.6% <i>vs.</i> 14.3%, <i>P</i> = 0.003, 6.6% vs. 15.4%, <i>P</i> = 0.001, respectively). The RAD cut-off values for predicting RAO were 2.42&#xa0;mm in the 6 Fr CAG group, 2.38&#xa0;mm in the 6 Fr PCI group, and 2.85&#xa0;mm in the 7 Fr PCI group. The larger pre-procedural RAD was an independent protective factor for preventing RAO (odds ratio [OR]: 0.239, 95% confidence interval [CI]: 0.099–0.561, <i>P</i> &lt; 0.001), while 7 Fr sheath (OR: 4.610, 95% CI: 2.159–9.938,<i> P</i> &lt; 0.001) and local complaints at access site (OR: 4.782, 95% CI: 2.815–8.150,<i> P</i> &lt; 0.001) were associated with an increased risk of RAO post-TRC.</p> Conclusion <p>Pre-procedural ultrasound measurements of RAD can help to choose an optimal sheath size to prevent RAO after TRC.</p> Graphical Abstract <p></p>

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Optimal radial artery diameter for predicting radial artery occlusion after transradial coronary catheterization

  • 期刊论文

  • 发表日期：

    2026年1月8日

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  • Inam Ullah,
  • Tong Wang,
  • Xiaoru Cheng,
  • Suling Wu,
  • Tian Wu,
  • Bowen Xie,
  • Jiaqi Chai,
  • Han Xu,
  • Xiaojiao Zhang,
  • Zhiwen Tao,
  • Xiaoxuan Gong,
  • Chunjian Li

摘要

Objective

The study aims to investigate how the radial artery diameter (RAD) predicts post-procedural radial artery occlusion (RAO) in patients undergoing transradial coronary catheterization (TRC).

Background

RAO is the most frequent complication of TRC. However, the cut-off value of RAD for predicting RAO remains uncertain.

Methods

A total of 2073 patients undergoing TRC were consecutively screened, and 1023 were enrolled. The participants were divided into 6 French (Fr) coronary angiography (CAG), 6 Fr percutaneous coronary intervention (PCI), and 7 Fr PCI groups. Ultrasound examination was performed before and after the procedure to measure RAD and to assess RAO. The primary endpoint was the rate of RAO at 12–24 h post-TRC.

Results

RAO was observed in 11.2% (115/1023) of patients. RAO was significantly lower in the 6 Fr PCI group than in the 6 Fr CAG and 7 Fr PCI groups (6.6% vs. 14.3%, P = 0.003, 6.6% vs. 15.4%, P = 0.001, respectively). The RAD cut-off values for predicting RAO were 2.42 mm in the 6 Fr CAG group, 2.38 mm in the 6 Fr PCI group, and 2.85 mm in the 7 Fr PCI group. The larger pre-procedural RAD was an independent protective factor for preventing RAO (odds ratio [OR]: 0.239, 95% confidence interval [CI]: 0.099–0.561, P < 0.001), while 7 Fr sheath (OR: 4.610, 95% CI: 2.159–9.938, P < 0.001) and local complaints at access site (OR: 4.782, 95% CI: 2.815–8.150, P < 0.001) were associated with an increased risk of RAO post-TRC.

Conclusion

Pre-procedural ultrasound measurements of RAD can help to choose an optimal sheath size to prevent RAO after TRC.

Graphical Abstract