Abstract: Objective To investigate the knowledge,clinical application and training needs of Chinese anesthesiologists for ultrasound-guided intrathecal puncture technique.Methods The survey objects were anesthesiology clinicians in China. The questionnaire was designed by ourselves, and the survey time was from October to November 2023. Questionnaires were sent through wechat platform.The questionnaire was divided into three parts: general demographic information, application of intraspinal puncture, application of intraspinal puncture under ultrasound guidance, and training needs for intraspinal puncture under ultrasound guidance.The influencing factors were analyzed by ordered Logistic regression.Results A total of 1001 questionnaires were collected with a valid ratio was 94.2% (942/1 001).The respondents’ knowledge of ultrasound-guided intrathecal puncture was 3.21±1.03,while the clinical application level was 2.43±1.25 (P<0.01).According to ordinal logistic regression analysis,senior doctor (OR=0.312,95%CI 0.117-0.829,P=0.019),male (OR=0.658,95%CI 0.511~0.846,P=0.001),central region (OR=0.690,95%CI 0.523-0.911,P=0.009) and percentage of neuraxial anesthesia less than 20% (OR=0.426,95%CI 0.200-0.905,P=0.026) were significantly negatively correlated with the knowledge of ultrasound-guided intrathecal puncture technique.The main obstacle for the clinical application was unfamiliarity of the technique (83.9%) and the equipment (54.6%).The key technical challenges were finding the correct ultrasound views (69.6%),recognizing anatomical structures (69.2%) and poor ultrasound imaging(63.0%).The preferred training methods were simulation training (87.4%) and clinical instruction based on cases (90.0%).Conclusion There is still room for improvement in the understanding and clinical application of ultrasound-guided intrathecal puncture technique for the Chinese anesthesiologists.In the future,more training on ultrasound-guided intrathecal puncture technique could be provided according to our survey.

Key words: questionnaires；ultrasound-guided；intrathecal puncture