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Sublingual buprenorphine for acute renal colic pain management: a double-blind, randomized controlled trial.

ABSTRACT: BACKGROUND:The aim of this study was to compare the efficacy and safety of sublingual buprenorphine with intravenous morphine sulfate for acute renal colic in the emergency department. METHODS:In this double-dummy, randomized controlled trial, we enrolled patients aged 18 to 55 years who had a clinical diagnosis of acute renal colic. Patients received either 2 mg sublingual buprenorphine with an IV placebo, or 0.1 mg/kg IV morphine sulfate with a sublingual placebo. Subjects graded their pain with a standard 11-point numeric rating scale (NRS) before medication administration and 20 and 40 minutes after that. The need for rescue analgesia and occurrence of side effects were also recorded in the two groups. RESULTS:Of 69 patients analyzed, 37 had received buprenorphine, and 32 had taken morphine. Baseline characteristics were similar in both groups. NRS pain scores were reduced across time by administration of both buprenorphine (from 9.8 to 5.22 and then 2.30) and morphine (from 9.78 to 4.25 and then 1.8), significantly (P <0.0001). The two regimens did not differ significantly for pain reduction (P?=?0.260). Dizziness was more frequently reported by the buprenorphine group (62.1% versus 37.5%, P <0.05) but other adverse effects observed within 40 minutes were similar in the two groups. CONCLUSIONS:Sublingual buprenorphine (2 mg) is as effective as morphine sulfate (0.1 mg/kg) in acute renal colic pain management.

SUBMITTER: Payandemehr P

PROVIDER: S-EPMC3892119 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature

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Sublingual buprenorphine for acute renal colic pain management: a double-blind, randomized controlled trial.

Payandemehr Pooya P Jalili Mohammad M Mostafazadeh Davani Babak B Dehpour Ahmad Reza AR

International journal of emergency medicine 20140103 1

<h4>Background</h4>The aim of this study was to compare the efficacy and safety of sublingual buprenorphine with intravenous morphine sulfate for acute renal colic in the emergency department.<h4>Methods</h4>In this double-dummy, randomized controlled trial, we enrolled patients aged 18 to 55 years who had a clinical diagnosis of acute renal colic. Patients received either 2 mg sublingual buprenorphine with an IV placebo, or 0.1 mg/kg IV morphine sulfate with a sublingual placebo. Subjects grade ...[more]

PMID: 24386894

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Project description:ObjectiveTo determine whether the probiotic Lactobacillus reuteri DSM 17938 reduces crying or fussing in a broad community based sample of breastfed infants and formula fed infants with colic aged less than 3 months.DesignDouble blind, placebo controlled randomised trial.SettingCommunity based sample (primary and secondary level care centres) in Melbourne, Australia.Participants167 breastfed infants or formula fed infants aged less than 3 months meeting Wessel's criteria for crying or fussing: 85 were randomised to receive probiotic and 82 to receive placebo.InterventionsOral daily L reuteri (1 × 10(8) colony forming units) versus placebo for one month.Main outcomes measuresThe primary outcome was daily duration of cry or fuss at 1 month. Secondary outcomes were duration of cry or fuss; number of cry or fuss episodes; sleep duration of infant at 7, 14, and 21 days, and 1 and 6 months; maternal mental health (Edinburgh postnatal depression subscale); family functioning (paediatric quality of life inventory), parent quality adjusted life years (assessment of quality of life) at 1 and 6 months; infant functioning (paediatric quality of life inventory) at 6 months; infant faecal microbiota (microbial diversity, colonisation with Escherichia coli), and calprotectin levels at 1 month. In intention to treat analyses the two groups were compared using regression models adjusted for potential confounders.ResultsOf 167 infants randomised from August 2011 to August 2012, 127 (76%) were retained to primary outcome; of these, a subset was analysed for faecal microbial diversity, E coli colonisation, and calprotectin levels. Adherence was high. Mean daily cry or fuss time fell steadily in both groups. At 1 month, the probiotic group cried or fussed 49 minutes more than the placebo group (95% confidence interval 8 to 90 minutes, P=0.02); this mainly reflected more fussing, especially for formula fed infants. The groups were similar on all secondary outcomes. No study related adverse events occurred.ConclusionsL reuteri DSM 17938 did not benefit a community sample of breastfed infants and formula fed infants with colic. These findings differ from previous smaller trials of selected populations and do not support a general recommendation for the use of probiotics to treat colic in infants.Trial registrationCurrent Controlled Trials ISRCTN95287767.

Project description:PurposeOpioid therapy is associated with the development of tolerance and paradoxically increased sensitivity to pain. It has been suggested that buprenorphine is associated with a higher antihyperalgesia/analgesia ratio than μ-opioid receptor agonists. The primary outcome of this study was therefore to investigate relative differences in antihyperalgesia and analgesia effects between morphine and buprenorphine in an inflammatory pain model in volunteers. The secondary outcome was to examine the relationship between pain sensitivity and opioid-induced effects on analgesia, antihyperalgesia, and descending pain modulation.Subjects and methodsTwenty-eight healthy subjects were included. The study was a double-blind, randomized, placebo-controlled, five-arm crossover study with a multimodal (electrical, mechanical, and thermal stimuli) testing technique. After baseline assessments, intravenous infusions of morphine (10/20 mg), buprenorphine (0.3/0.6 mg), or placebo (normal saline) were administered over a 210-minute period, during which a cold pressor test, heat injury (47°C, 7 minutes, 12.5 cm(2)), and the first postburn assessment were done. After completion of the drug infusions, two additional postburn assessments were done. The subjects were monitored during each 8-hour session by an anesthesiologist.ResultsFor nearly all tested variables, significant dose-dependent analgesic effects were demonstrated. The median antihyperalgesia/analgesia ratio (secondary hyperalgesia/heat injury relative to placebo) for low-dose morphine was 0.01 (interquartile range: -6.2; 9.9), 0.00 (-2.4; 2.1) for high-dose morphine, 0.03 (-1.8; 2.1) for low-dose buprenorphine, and 0.00 (-3.2; 1.1) for high-dose buprenorphine (P > 0.466). There were no significant differences in opioid responses between high and low pain-sensitive subjects (P > 0.286). High-dose buprenorphine, compared to placebo, was associated with a significantly enhanced action of the descending inhibitory pain control system (P = 0.004).ConclusionThe present study, using multimodal testing technique, could not demonstrate any significant differences between morphine and buprenorphine in the profiles of antihyperalgesia and analgesia. Only high-dose buprenorphine was associated with a significant effect on the descending inhibitory pain control system.

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Sublingual buprenorphine for acute renal colic pain management: a double-blind, randomized controlled trial.

Publications

Sublingual buprenorphine for acute renal colic pain management: a double-blind, randomized controlled trial.

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