Abstract: Ultrasound‑guided radial artery puncture and cannulation had significant advantages compared with the traditional palpation blind puncture method. The application of ultrasound‑guided technique can improve the success rate of radial artery puncture and cannulation in adults and children, and reduce the incidence of adverse reactions. However, different techniques have their advantages and disadvantages. The risk of penetrating the posterior wall, hematoma, and spasm may also occur due to operating skills. This review describes the method of ultrasound‑guided radial artery puncture, the related factors which influence the success rate of operation, and related complications. The application of ultrasound technology can improve the success rate of radial artery puncture and cannulation, which has been certified. The real‑time ultrasound‑guided clinical application still needs in‑depth study and continuous exploration to give full play to its due medical value.
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