Abstract：【Objective】To investigate the impact of ultrasound-guided sciatic nerve block anesthesia on lower limb blood circulation in patients undergoing foot surgery.【Methods】A total of 78 patients undergoing foot surgery from our two hospitals were randomly divided into the observation group and the control group, with 39 patients in each group. The anesthetic effects and related indicators were compared between the two groups. Hemodynamic parameters such as heart rate (HR) and mean arterial pressure (MAP) were measured before anesthesia (T0), 30 minutes after anesthesia (T1), and at the end of the surgery (T2). Coagulation function indices, including thrombin time (TT), prothrombin time (PT), and activated partial thromboplastin time (APTT), were compared before and after surgery. The incidence of adverse reactions was also compared between the two groups.【Results】The duration of motor and sensory block in the observation group was significantly longer than that in the control group, while the time to urination and lower limb motor recovery of the observation group was shorter than of in the control group, with statistically significant differences (P<0.05). In the control group, HR and MAP at T1 and MAP at T2 were lower than those at T0 (P<0.05). HR and MAP at T1 and MAP at T2 in the observation group were higher than those in the control group at the same time points (P<0.05). Postoperative levels of TT, PT, and APTT were higher than preoperative levels in both groups (P<0.05), and postoperative TT, PT, and APTT levels in the observation group were significantly higher than those in the control group (P<0.05). The excellent rate of anesthesia in the observation group (97.44%) was significantly higher than in the control group (79.49%) (P<0.05). The total incidence of adverse reactions in the observation group was 7.69%, which was significantly lower than that in the control group (25.64%) (P<0.05).【Conclusion】Ultrasound-guided sciatic nerve block anesthesia for foot surgery has excellent anesthetic effects and safe clinical application, which effectively improves coagulation function and has fewer adverse reactions.
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2024, Vol. 41 
