Effects of Patient Controlled Analgesia with Morphine after Obstetric or Gynecologic Surgery / 대한마취과학회지

Intravenous patient-controlled analgesia(PCA) is gaining wide spread popularity in management of post-operative pain maintaining an effective blood concentrations of analgesics. We studied 48 patients, ASA class I or II, undergoing obstetric or gynecologic surgery under general anesthesia. We examined postoperative pain control level, patients satisfaction and side effects associated with the use of morphine and Baxter infusor. Each patient received 0.1 mg/kg as a loading dose and 0.0125 mg/kg/hr of morphine as maintenance dose. A unit was fitted with patient control module which had a flow rate of 0.5ml/hr and lockout interval was 15 minutes. Results were as follow. Pain scores were 1.88+/-0.81(first day), 1.31+/-0.71(second day). Visual analogue scales were 4.40+/-2.06(first day), 3.40+/-1.71(second day). 41 out of 48 patients in total were satisfied but nausea, dizziness or pruritus was noted. We recommend the use of PCA with morphine after surgery to improve post-operative pain because it provides adequate pain relief and a few side effects with high patients satisfaction.

Mananagement of Cancer Pain Using Portable Infusor / 대한마취과학회지

Continuous epidural analgesia with morphine via portable infusor(Baxter Infusor, BI) is a good technique for the management of intractable cancer pain. The method of subcutaneous tunnelling with portable infusor has been widely used for the cancer pain management. We examined the doses of morphine, duration of subcutaneous tunnelling, side effects, age distribution and causes of pain. The mean initial dose of morphine was 6.09 and the last 24.02 mg. Mean duration of subcutaneous tunnelling was 53.71 days and voiding difficulty, pruritus, respiratory depression were observed. Most of the patients were at the ages of 6th decade and the most common cause of pain was stomach cancer. It is suggested that the management of intractable cancer pain with epidural morphine through subcutaneous tunnelling via portable infusor is satisfactory and reliable.