미양(微量) Morphine 지주막하(蜘蛛膜下) 주입(注入)에 의(依)한 항문각위술후(肛門脚圍術後) 제통효과(除痛效果)에 대(對)한 임상연구(臨床硏究)

In order to control the pain after hemorrhoidectomy and anal fistulectomy, 6 mg of 0.5% hyperbaric tetracaine without(control, group I) or wilt 0.3 mg(group II) or 0.5 mg (group III) of 0.1% morphine was injected with a 22 gauge spinal needle into the subarachnoid space through L 3-4 interspace of patients in lateral position. About 30 minutes in Fowler' sposition after injection, operation was performed in lithotomy position. All the patients who ha4 morphine showed remarkable relief of postoperative pain for an average of 27 hours. However, the dosage(0.3 or 0.5 mg) of morphine administered did not affect the duration of pain relief. Blood pressure, pulse rate and pupil size were unchanged in all patients. Dysuria after block developed for on average of 5,6, 13.2 and 14.6 hours in group I, II and III respectively. Most of these cases required urethral catheterization. Minor complications such as nausea, vomiting, itching, fever, burning sensation and paresthesia were observed 16.7, 20 and 20% of cases in group I, II and III respectively; however, no treatment was required.