مقایسه بیهوشی عمومی با بی حسی نخاعی از نظر میزان خونریزی حین عمل نفرولیتوتریپسی جلدی

Background and aims: Percutaneus nephrolithotrips is commonly used for the removal ofstones. This procedure can be performed under general or spinal anesthesia. In this study weevaluated amount of Bleeding and transfusion needs between two mentioned anesthesia routes.Methods and materials: A total of 80 ASA I-II patients undergoing PCNL were randomlyallocated to receive spinal anesthesia (3 ml bupivacain % 0. 5) or general anesthesia which wasinduced with Thiopentone and maintained with propofol. Estimated blood loss and transfusionrates, postoperative pain (scored from 0 to 10 on a visual analog scale), in two groups wererecorded separately then collected data were analyzed by SPSS13 software.Results: Mean blood loss was 262±113.8 ml & 148.1±55.8 ml in general & spinal group,respectively. There is meaningful difference between two groups (p<0.001).Rate of transfusion was 7.5 % in general group & no one in spinal group .The spinal group hadbetter patient satisfaction and lower pain scores (p<0.001). Post operative pain after 1 hr (VAS)was 4.2± 1.0.1 & 2.3± 0.9 in general group & in spinal group respectively.Conclusion: Spinal anesthesia decreased blood loss versus general anesthesia up to 50%, andhad less postoperative pain score and is an attractive alternative to general anesthesia in thesepatients