| Objective To investigate the anesthesia efficacy of lumbar plexus popliteal fossa sciatic nerve block guided by ultrasound and nerve stimulator in the patients undergoing unilateral great saphenous varicose veins surgery.Methods Sixty patients scheduled for unilateral great saphenous varicose veins surgery in our hospital from Jan 2015 to Dec 2015, in ASA grade I and II, were selected and divided into the nerve block group (group NB, 30 cases) and the epidural anesthesia group (group EA, 30 cases) by randomized number table method. The systolic blood pressure (SBP), diastolic blood pressure (DBP) and heart rate (HR) of all patients at the time of before anesthesia (T0) and 10 min (T1), 30 min (T2), 60 min (T3) after anesthesia were recorded. And the onset time and sustained time of sensory block, use of ephedrine after anesthesia, anesthesia efficacy and postoperative adverse reactions (nausea and vomiting, urinary retention) in the two groups were also recorded. Results Compared with the EA group, the NB group had significant higher SBP and DBP at the time of T2(P<0.05), and it had shorter onset time of sensory block and longer sustained time of sensory block. The cases of ephedrine usage after anesthesia in the NB group were significantly fewer than those in the EA group (P<0.05). There was no significantly difference in the excellent and good anesthesia efficacy between the two groups, so was the difference in the incidence of nausea and vomiting between them (P>0.05). But the incidence of urinary retention in the NB group was significantly lower than that in the EA group (P<0.05). Conclusion In the patients undergoing unilateral great saphenous varicose veins surgery, the anesthesia efficacy of lumbar plexus popliteal fossa sciatic nerve block guided by ultrasound and nerve stimulator would be similar to that of epidural anesthesia, with further advantages of stable hemodynamics and fewer complications. |
