Abolfazl Firouzian1, Abbas Alipour2, Hale Rashidian Dezfouli3, Alieh Zamani Kiasari1, Afshin Gholipour Baradari1, Amir Emami Zeydi4, Hamed Amini Ahidashti3, Maryam Montazami1, Seyed Mohammad Hosseininejad5, Farideh Yazdani Kochuei6. 1. Department of Anesthesiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran. 2. Department of Epidemiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran. 3. Department of Emergency Medicine, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran. 4. Student Research Committee, Department of Medical-Surgical Nursing, School of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran. 5. Department of Emergency Medicine, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran. Electronic address: drhoseininejad@yahoo.com. 6. Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
Abstract
OBJECTIVE:Renal colic (RC) is a common clinical presentation in the emergency department (ED). Prompt and effective pain control is one of the first responsibilities of emergency physicians. The aim of this study was to evaluate the analgesic effect of adding lidocaine to morphine compared to morphine alone in patients presenting to the ED with RC. METHODS: In a double-blind, randomized controlled trial, a total of 110 adult patients of both sexes, aged 18 to 50 years, who presented to the ED with signs and symptoms suggestive of RC were randomly assigned into 1 of 2 groups. Patients in group A received morphine (0.1 mg/kg) plus lidocaine (1.5 mg/kg), whereas those in group B received morphine (0.1 mg/kg) plus normal saline 0.9% as placebo. All patients were asked to rate the intensity of their pain and nausea on a 0- to 10-point visual analog scale before and at 5, 10, 30, 60, and 120 minutes after intervention. RESULTS: There was a statistically significant time trend decline in both groups for both pain and nausea scores (P < .01). Repeated-measures analysis showed a significant effect for the interaction between group and time of persistent pain (P = .034), but there was no significant group effect in this regard (P = .146). Median times to being pain free in the group receiving morphine plus lidocaine and in the group taking morphine alone were 87.02 minutes (95% confidence interval [CI], 74.23-94.82) and 100.12 minutes (95% CI, 89.95-110.23), respectively (P = .071). Repeated-measures analysis also showed a significant group effect for nausea (P = .038), but there was no interaction between group and time in this regard (P = .243). The median nausea-free times in the group receiving morphine plus lidocaine and the group receiving morphine alone were 26.6 minutes (95% CI, 14.16-39.03) and 58.33 minutes (95% CI, 41.85-74.82), respectively. This time difference was statistically significant (P < .001). CONCLUSIONS: Using lidocaine may be recommended as an effective, safe, and inexpensive adjuvant to morphine in improving nausea and reducing the time needed to achieve pain and nausea relief in patients visiting the ED with acute RC.
RCT Entities:
OBJECTIVE:Renal colic (RC) is a common clinical presentation in the emergency department (ED). Prompt and effective pain control is one of the first responsibilities of emergency physicians. The aim of this study was to evaluate the analgesic effect of adding lidocaine to morphine compared to morphine alone in patients presenting to the ED with RC. METHODS: In a double-blind, randomized controlled trial, a total of 110 adult patients of both sexes, aged 18 to 50 years, who presented to the ED with signs and symptoms suggestive of RC were randomly assigned into 1 of 2 groups. Patients in group A received morphine (0.1 mg/kg) plus lidocaine (1.5 mg/kg), whereas those in group B received morphine (0.1 mg/kg) plus normal saline 0.9% as placebo. All patients were asked to rate the intensity of their pain and nausea on a 0- to 10-point visual analog scale before and at 5, 10, 30, 60, and 120 minutes after intervention. RESULTS: There was a statistically significant time trend decline in both groups for both pain and nausea scores (P < .01). Repeated-measures analysis showed a significant effect for the interaction between group and time of persistent pain (P = .034), but there was no significant group effect in this regard (P = .146). Median times to being pain free in the group receiving morphine plus lidocaine and in the group taking morphine alone were 87.02 minutes (95% confidence interval [CI], 74.23-94.82) and 100.12 minutes (95% CI, 89.95-110.23), respectively (P = .071). Repeated-measures analysis also showed a significant group effect for nausea (P = .038), but there was no interaction between group and time in this regard (P = .243). The median nausea-free times in the group receiving morphine plus lidocaine and the group receiving morphine alone were 26.6 minutes (95% CI, 14.16-39.03) and 58.33 minutes (95% CI, 41.85-74.82), respectively. This time difference was statistically significant (P < .001). CONCLUSIONS: Using lidocaine may be recommended as an effective, safe, and inexpensive adjuvant to morphine in improving nausea and reducing the time needed to achieve pain and nausea relief in patients visiting the ED with acute RC.
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