Purpose: We conducted a prospective randomized controlled study to evaluate the effect of micronized flavonoid fractions (MFF) on pain after hemorrhoidectomy.
Methods: The subjects were 112 consecutive patients randomly assigned either to receive MFF (group 1) for 1 week or not to receive MFF, as a control (group 2), after hemorrhoidectomy, The severity of pain and the number of intramuscular analgesic injections required were recorded for the first 3 days, then 1 week after hemorrhoidectomy. The number of days that intramuscular analgesic injections were required, hospital stay, and patient satisfaction were also assessed.
Results: On postoperative day (POD) 1, there were no significant differences between the parameters of the two groups, but on PODs 2 and 3, both the pain score ( P = 0.033 and P = 0.011, respectively) and the number of patients who required intramuscular analgesic injections were significantly less in group 1 ( P = 0.022 and P = 0.007, respectively). Moreover, the hospital stay was shorter and patient satisfaction was superior in group 1 ( P = 0.001 and P = 0.001, respectively). After 1 week, the pain score and number of intramuscular analgesic injections given were significantly less in group 1 ( P = 0.001 and P = 0.021).
Conclusion: Using MFF after hemorrhoidectomy reduced the severity of pain and intramuscular analgesic requirement.