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서혜부 탈장 복원수술시 Lidocaine 의 침윤이술후 통증에 미치는 영향
이인배,이상록,김홍렬,조성정,정창우,고활영 대한마취과학회 1996 Korean Journal of Anesthesiology Vol.31 No.2
Background: Recently many studies reported that the postoperative pain was prevented or decreased from preoperative regional anesthesia by preventing the establishment of central sensitization(pre-emptive analgesia). Therefore, we evaluated the efficacy of preincisional lidocaine infiltration on the postoperative pain. Methods: We conducted a study to compare preinfiltrating group with 1% lidocaine(30ml), postinfiltrating group with 1% lidocaine(30 ml) and non-infiltrating group in 45 patients scheduled for elective inguina1 herniorrhaphy. During operation, all patients received a general anesthesia with thiopental, isoflurane and nitrous oxide in oxygen. Postoperatively, pain scores on visual analogue scale(VAS) and on verbal rating scale(VRS) at rest, coughing and movement from supine into sitting position were assessed. Also the time to first request for an on-demand postoperative analgesics and the total dose of postoperative analgesics were assessed. And the number of patients who didnt require any analgesics during postoperative period was assessed. Results: The VAS and VRS at rest, coughing, movement were low in preinfiltrating group than in non-infiltrating group and postinfiltrating group postoperatively, but it was statistically significant only in early postoperative period. The time to first request for an on-demand postoperative analgesics occurred later in preinfiltrating group than in non-infiltrating group and in postinfiltrating group and the total dose of supplemental analgesics(ketorolac) was smaller in the preinfiltrating group than in non-infiltrating group and postinfiltrating group, and the patients without analgesic treatment was less in the preinfiltrating group than in non-infiltrating group and postinfiltrating group, but it was not statistically significant. Conclusions: In patients with inguinal herniorrhaphy, we can not support the pre-emptive analgesia clinically with preincisional lidocaine infiltration.
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이재철,이인배,이상록,김홍렬,정창우,고활영 대한마취과학회 1996 Korean Journal of Anesthesiology Vol.30 No.4
Background: Laparoscopic cholecystectomy has emerged rapidly as a popular alternative to tradidonal laparotomy and cholecystectomy in the management of cholelithiasis. The advantages of shorter hospital stay, more rapid return to normal activities are combined with less pain associated with the small limited incisions. But it has some disadvantages related to insufflation of a large amount of carbon dioxide into peritoneal cavity. Methods: To investigate ventilatory and hemodynamic changes during laparoscopic cholecystectomy, we observed the changes in blood pressure (systole, diastole, mean), heart rate, end-tidal carbon dioxide tension (PerCO₂), arterial carbon dioxide tension(PaCO₂), and arterial oxygen tension(PaO₂) at intervals during general anesthesia with controlled ventilation (tidal volume: 10 mg/kg, ventilatory rate: 10 breaths/min). Results: Mean arterial pressure was increased significantly until 30 minutes after carbon dioxide insufflation(p$lt;0.05). Heart rate was not changed significantly thrhout the operation. End-tidal carbon dioxide tension and arterial carbon dioxide tension were increased significantly during carbon dioxide insufflation(p$lt;0.01), but arterial oxygen tension was not decreased significantly throughout the operation. Conclusion: This study described 19 patients who underwent laparoscopic cholecystectomy and analyzed the changes in hemodynamic and ventilatory parameters. It is important for anesthesiologist to monitor ventilation and hemodynamics carefully because the patients with cardiac or pulmonary diseases may be adversely affected by the hypercarbia associated with carbon dioxide insufflation.
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