Document Type : Original Article
Department of Emergency Medicine, Mazandaran University of Medical Science, Sari, Iran
Department of Urology, Mazandaran University of Medical Science, Sari, Iran
Objective: The main purpose in the treatment of renal colic patients in emergency department is pain management. This study aimed to compare the analgesic effects of intravenous (IV) acetaminophen and morphine sulfate in this regard.
Methods: This double blind clinical trial was conducted on >18 years old renal colic patients in need of pain management in emergency department. Pain severity was recorded as 15, 30, and 60 minutes before injection, and 120 minutes after injection. In addition, side effects were compared between IV acetaminophen and morphine sulfate groups using SPSS version 16.
Results: A total of 355 patients were randomly allocated to one of the treatment groups. There were no significant differences between the two groups regarding baseline characteristic of participants. There was no significant difference in the pain intensity of the groups; 15 (P = 0.13) and 30 (P = 0.15) minutes after treatment. Although, the difference in pain severity was statistically significant between the two groups; 60 (P = 0.02) and 120 (P = 0.003) minutes after the infusion. This was not clinically important. The prevalence of side effects in morphine group was higher than the acetaminophen group (RR: 2.14, 95% CI: 1.53-2.98, P< 0.0001).
Conclusion: Based on the findings, IV morphine sulfate and acetaminophen had equal effectiveness regarding acute renal colic pain management, but considering the significantly higher frequency of side effects, IV acetaminophen seems to be a more reasonable choice in this regard.
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