There will be compared the postoperative analgesic effect of infiltration or spinal block for hemorrhoidectomy
This is a prospective, randomized study, including 40 patients between 18 and 60 years, of both genders, ASA 1 or 2. Patients in group 1 (n = 20) will be submitted to spinal block and group 2 (n = 20) to infiltration. The spinal block will be performed with 10 mg of 0.5% bupivacaine. The infiltration will be performed with 10 ml of 0.5% bupivacaine with epinephrine on each side. Will be evaluated: intensity of pain on a numerical scale from 0 to 10 every 15 minutes, relaxation of the sphincter muscles, intensity of pain after the operation every 30 minutes until reached the criteria for discharge, muscle strength of the lower limbs every 30 minutes, BP, HR, SO2, FR, other items that determine the conditions of discharge (urine output, nausea and vomiting), time to hospital discharge, and duration of analgesia. Adverse effects and complications will be noted.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
40
injection of local anesthetic, associated with general anesthesia
injection of anesthetic
10ml 0.5% bupivacaine.
Universidade Federal de São Paulo
São Paulo, São Paulo, Brazil
Pain intensity
Numerical score
Time frame: 24 hours
Time to discharge
Time frame: 24 hours
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Spinal punction and injection of local anesthetic