Objective: To study on the application of ultrasound-based vascular puncture location technology in patients with difficult arteriovenous fistula in hemodialysis. Methods: This study was a single-center prospective cohort study. One hundred and nineteen patients with difficult arteriovenous fistula in hemodialysis treated in our hospital from March 2021 to May 2021 were included. The subjects who met the inclusion and exclusion criteria were numbered according to the order of admission, and the patients were divided into control group(59 cases) and observation group(60 cases) in accordance with odd and even numbers. The control group received traditional puncture, while the observation group used ultrasound-based vascular puncture positioning technology. Both groups were followed up for 3 months after puncture. The occurrence of puncture injury and puncture pain, hemostasis time after needle withdrawal, puncture point blood oozing during the follow-up, incidence of subcutaneous hematoma, the rate of patients' satisfaction after 3 months' follow-up were compared between the two groups. Results: The time of evaluation and puncture in the observation group was longer than that in the control group(P<0.05), and the hemostasis time after needle withdrawal was shorter than that in the control group(P<0.05). The first-attempt success rate of puncture and pain tolerance rate in the observation group were higher than those in the control group(P<0.05), and the incidence of puncture injury was lower than that in the control group(P<0.05). During the follow-up, the occurrence of puncture point blood oozing and subcutaneous hematoma in the observation group was lower than that in the control group(P<0.05). After 3 months' follow-up, the total satisfaction rate of the observation group was higher than that of the control group(P<0.05). Conclusion: Compared with traditional puncture, the time of evaluation and puncture before vascular puncture is longer by using ultrasound-based vascular puncture positioning technology, but the first-attempt success rate of puncture is high, which can effectively reduce the puncture injury and pain of the patients, shorten the hemostasis time after needle withdrawal, reduce the occurrence of blood oozing and subcutaneous hematoma at the puncture point, and improve the patients' satisfaction. |
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