Baricity, Needle Direction, and Intrathecal Sufentanil Labor Analgesia

1997 ◽  
Vol 86 (3) ◽  
pp. 592-598 ◽  
Author(s):  
Fazeela Ferouz ◽  
Mark C. Norris ◽  
Valerie A. Arkoosh ◽  
Barbara L. Leighton ◽  
Louis M. Boxer ◽  
...  

Background Intrathecal sufentanil relieves labor pain but centrally mediated side effects are common. Preventing rostral spread of intrathecal sufentanil should limit these side effects. Both direction of the lateral opening of a pencil-point needle and drug baricity modify the spread of intrathecal local anesthetics. This randomized, prospective, double-blind study examines the effects of these variables on intrathecal sufentanil labor analgesia. Methods Forty laboring, full-term parturients, whose cervixes were dilated less than 5 cm and who requested analgesia for labor were enrolled. Combined spinal epidural analgesia was induced in patients in the sitting position. They were allocated to receive 10 micrograms intrathecal sufentanil diluted with either normal saline or dextrose with the aperture of the pencil-point needle directed cephalad or caudad during drug injection. Thus there were four groups of ten patients: dextrose up, dextrose down, saline up, and saline down. Sufentanil was diluted with normal saline to a concentration of 10 micrograms/ml. The study drug was made by mixing 1 ml sufentanil solution with either 1 ml 10% dextrose or 1 ml normal saline. Visual analog scores for pain, pruritus, nausea, and pain relief were recorded before and 5, 10, 15, and 30 min after drug injection. Results Baricity, but not needle orientation, influenced pain relief and pruritus. Sufentanil in dextrose produced less itching but also less analgesia. Nine of 20 women in the dextrose groups compared with 1 of 20 in the saline groups requested additional analgesia by 30 min. Conclusions Little or no labor analgesia developed for patients receiving sufentanil with dextrose. A supraspinal action may contribute to intrathecal sufentanil's analgesic efficacy.

2010 ◽  
Vol 1 (3) ◽  
pp. 122-141 ◽  
Author(s):  
Harald Breivik ◽  
Tone Marte Ljosaa ◽  
Kristian Stengaard-Pedersen ◽  
Jan Persson ◽  
Hannu Aro ◽  
...  

AbstractObjectivePatients with osteoarthritis (OA) pain often have insufficient pain relief from non-opioid analgesics. The aim of this trial was to study efficacy and tolerability of a low dose 7-day buprenorphine transdermal delivery system, added to a NSAID or coxib regimen, in opioid-naïve patients with moderate to severe OA pain.MethodsA 6 months randomised, double-blind, parallel-group study at 19 centres in Denmark, Finland, Norway, and Sweden, in which OA patients (>40 years) with at least moderate radiographic OA changes and at least moderate pain in a hip and/or knee while on a NSAID or a coxib were randomised to a 7-day buprenorphine patch (n = 100) or an identical placebo patch (n = 99). The initial patch delivered buprenorphine 5 μg/h. This was titrated to 10 or 20 μg/h, as needed. Rescue analgesic was paracetamol 0.5–4 g daily. Statistical analysis of outcome data was mainly with a general linear model, with treatment as factor, the primary joint of osteoarthritis, baseline scores, and season as covariates.ResultsMost patients had OA-radiographic grade II (moderate) or grade III (severe), only 8 in each group had very severe OA (grade IV). The median buprenorphine dose was 10 μg/h. 31 buprenorphine-treated patients and 2 placebo-treated patients withdrew because of side effects. Lack of effect caused 12 placebo-treated and 7 buprenorphine-treated patients to withdraw. The differences in effects between treatments: Daytime pain on movement, recorded every evening on a 0–10 numeric rating scale decreased significantly more (P = 0.029) in the buprenorphine group. Patients’ Global Impression of Change at the end of the double blind period was significantly improved in the buprenorphine group (P = 0.017). The chosen primary effect outcome measure, the Western Ontario and McMaster Universities (WOMAC) OA Index for Pain (P = 0.061), and secondary outcome measures, the WOMAC OA score for functional abilities (P = 0.055), and the WOMAC total score (P = 0.059) indicated more effects from buprenorphine than placebo, but these differences were not statistically significant. In a post-hoc, subgroup analysis with the 16 patients with radiographic grad IV (very severe) excluded, WOMAC OA Index for Pain was significantly (P = 0.039) reduced by buprenorphine, compared with placebo. WOMAC OA score for stiffness and the amount of rescue medication taken did not differ. Sleep disturbance, quality of sleep, and quality of life improved in both groups. Side effects: Typical opioid side effects caused withdrawal at a median of 11 days before completing the 168 days double blind trial in 1/3 of the buprenorphine group. Mostly mild local skin reactions occurred equally often (1/3) in both groups.ConclusionsAlthough the 24 hours WOMAC OsteoArthritis Index of pain was not statistically significantly superior to placebo, day-time movement-related pain and patients’ global impression of improvement at the end of the 6-months double blind treatment period were significantly better in patients treated with buprenorphine compared with placebo. Opioid side effects caused 1/3 of the buprenorphine-patients to withdraw before the end of the 6-months double blind study period.ImplicationsA low dose 7-days buprenorphine patch at 5–20 μg/h is a possible means of pain relief in about 2/3 of elderly osteoarthritis patients, in whom pain is opioid-sensitive, surgery is not possible, NSAIDs and coxibs are not recommended, and paracetamol in tolerable doses is not effective enough. Vigilant focus on and management of opioid side effects are essential.


2020 ◽  
pp. 1-3
Author(s):  
Renjith I ◽  
Renu Devaprasath ◽  
Geo Navin Jude ◽  
T. S. Ambujam

BACKGROUND: Adjuvants to local anaesthetics improve the block properties and reduce opioid consumption. This study compared combination of local anaesthetic bupivacaine with buprenorphine and dexamethasone in ultrasound guided sciatico-popliteal and saphenous nerve block for below knee surgeries. STUDY DESIGN:A prospective, double-blind, randomized, comparative study. MATERIAL AND METHODS: 82 patients posted for elective or emergency below knee surgeries were randomly divided into 2 groups. Group X received 25ml block solution made up of 2mg/kg of 0.5% bupivacaine with 2mcg/kg buprenorphine and normal saline and group Y received 25ml block solution made of 2mg/kg of 0.5% bupivacaine with 0.1mg/kg dexamethasone and normal saline. Onset of sensory block, onset of motor block, duration of analgesia, hemodynamic parameters, and side effects were noted in each group. RESULTS: The mean time of onset of sensory block was earlier in group X (6.730±1.871 min) as compared to group Y (11.340±3.038min). The mean time of onset of motor block was also rapid in group X (9.000±2.121 min) than in group Y (13.020±2.286min). The mean total duration of analgesia was longer in group Y (1098.000±169.216) as compared to group X (794.070±145.084). There was no signicant difference in the mean duration of motor block between the groups. Both the groups were hemodynamically stable, and no signicant side effects were noted. CONCLUSIONS: Onset of sensory and motor blockade was faster in the buprenorphine group, however duration of analgesia was much longer in the dexamethasone group without any signicant side effects.


1987 ◽  
Vol 15 (2) ◽  
pp. 83-88 ◽  
Author(s):  
S. Sagne ◽  
P.-Å. Henrikson ◽  
K.-E. Kahnberg ◽  
H. Thiiander ◽  
S. O. Bertilson

A double-blind randomized analgesic trial was carried out on 180 patients undergoing surgical removal of an impacted lower wisdom tooth. The patients took their first dose of either 1000 mg paracetamol plus 60 mg codeine or 650 mg paracetamol plus 65 mg dextropropoxyphene when pain appeared after the decline of the local anaesthesia. If needed, another two doses were available during the observation period (≤10 h). The analgesic efficacy of paracetamol/codeine was overall superior to paracetamol/dextropropoxyphene in all variables. Sufficient pain relief was obtained in most patients. The pain reduction after the first dose was 64% in the group receiving paracetamol/codeine compared with 53% in the group receiving paracetamol/dextropropoxyphene and the mean durations of effect of the first dose were 6.6 and 5.8 h, respectively. Side-effects appeared in all patient groups but were most frequent in women taking paracetamol/codeine.


2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Simona Cionac Florescu ◽  
Denisa Madalina Anastase ◽  
Ana Maria Munteanu ◽  
Cristian Ioan Stoica

Objective. This randomized double-blind study compared the analgesic efficacy and tolerability of etoricoxib versus ketoprofen in 165 patients with elective total primary knee arthroplasty. Methods. After ethical committee approval, 165 patients were randomized in 3 groups: the etoricoxib group (E) receiving etoricoxib 120 mg/day, at the end of surgery and in the first postoperative day; the ketoprofen group (K) receiving ketoprofen 2 pills of 100 mg/day, the first at the end of surgery and then 1 pill every 12 hours in the surgery day and the first postoperative day; the placebo group (P). All groups received postoperatively the same analgesia protocol when NRS is over 3 with IV Perfalgan and morphine. The effectiveness was evaluated by the time from the initiation of spinal anesthesia until the first analgesic dose, the total amount of morphine administered in the surgery day and the first postoperative day, and the frequency of patients with side effects and necessary amount of adjuvant medication. Results. The baseline demographic characteristics were similar among the 3 groups. In both study days etoricoxib provided an analgesic effect superior to placebo and to ketoprofen, the total administered morphine being significantly lower in etoricoxib group. There were no statistically significant differences between groups regarding the side effects.


1970 ◽  
Vol 3 (1) ◽  
pp. 14-18 ◽  
Author(s):  
O Kuti ◽  
AF Faponle ◽  
AB Adeyemi ◽  
AT Owolabi

Aim: To assess and compare the analgesic efficacy and side effects of Pentazocine and Tramadol. Method: This double blind randomised controlled trial was carried out at the labour ward of Wesley Guild Hospital Ilesa Nigeria. One hundred normal pregnant women in active labour at term were randomly assigned to receive either intramuscular Pentazocine 30mg or intramuscular tramadol 100mg, at request for analgesia. Analgesic efficacy was assessed by verbal scales of pain intensity and relief; maternal and neonatal side effects were determined. Results: At 60 minutes after drug administration 47.7% and 30.9% of women, in the pentazocine and tramadol group respectively, experienced moderate to good pain relief. Significantly more women in the pentazocine group (34.1%) than in the tramadol group(14.3%) rated their pain as mild (P < 0.05) sixty minutes after drug administration. Mean time to first subsequent request for analgesia was greater in the pentazocine group (181 minutes vs 113 minutes; P < 0.05). There was no significant differences between the drugs in maternal side effects, labour and neonatal outcomes. Conclusion: Pentazocine provides better pain relief than tramadol in labor. Key words: Labour pain, pentazocine, tramadol doi:10.3126/njog.v3i1.1433NJOG 2008 May-June; 3(1): 14 - 18


1979 ◽  
Vol 7 (3) ◽  
pp. 240-246 ◽  
Author(s):  
Leo Winter ◽  
Arthur Post

Two hundred male and female patients underwent a variety of oral surgical procedures and were treated qfterwards in four test groups. They took a combination of orphenadrine (25 mg) and acetaminophen (325 mg), either drug alone, or placebo. A double-blind study design was used. All patients had moderately severe baseline pain intensity; post-treatment pain relief was recorded at 30 minutes, one, two, four and six hours. A back-up analgesic (codeine-ASA) was made available if needed. Pain intensity difference (PID) and sums of pain intensity difference (SPID) were calculated using established analgesic study techniques. Statistical analyses indicated better analgesic efficacy in both PID and SPID scores for the orphenadrine-acetaminophen combination over the three other treatments. This was evident at 30 minutes and continued through the sixth hour. Each active drug, in turn, was also significantly better throughout than placebo for pain relief. Sub-groups in each treatment regimen required additional pain relief prior to six hours, with significantly more placebo than orphenadrine-acetaminophen patients needing remedication. Side-effect incidence was very low and randomly distributed among the four groups-


2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Khaise Hareed ◽  
Nisha Kachru ◽  
Rupesh Yadav

Abstract Background Myoclonus is reported to occur in 50–80% of patients receiving etomidate in the absence of pretreatment. The study aimed to evaluate the efficacy of pretreatment with low-dose midazolam and fentanyl, and midazolam alone to reduce the occurrence of etomidate-induced myoclonus. Sixty patients were randomly divided into 2 groups. In group MF, patients received pretreatment with intravenous (IV) midazolam 0.015mg/kg in a volume of 5 ml normal saline, followed by IV fentanyl 1μg/kg in a volume of 5 ml normal saline. In group M, patients received pretreatment with IV midazolam 0.03mg/kg in a volume of 5 ml normal saline, followed by 5ml of IV normal saline. The test drug was injected over 30 s, and after 120 s, IV etomidate 0.3 mg/kg was injected over 30 s. The patients were observed for 120 s for myoclonus and graded as mild, moderate, or severe. Heart rate, blood pressure, and oxygen saturation were recorded immediately after test drug injection and at every minute for 5 min. Results The demographic parameters and hemodynamic parameters were comparable between the two groups. In group M, the incidence of myoclonus was 36.67% (26.67% mild and 10% moderate) whereas, in the group MF, the incidence of myoclonus was 26.67% (3.33% mild, 16.67% moderate, and 6.67% severe). This incidence of myoclonus was significantly lower in group MF (p=0.030). Conclusions The incidence of etomidate-induced myoclonus is significantly lower in patients pretreated with midazolam and fentanyl combination as compared to midazolam alone. Trial registration Clinical Trial Registry Details: CTRI/2019/05/018920


2017 ◽  
Vol 11 (1) ◽  
pp. 101-106
Author(s):  
Mohammadreza Maleki Verki ◽  
Kambiz Masoumi ◽  
Hassan Motamed ◽  
Meisam Moezi ◽  
Arash Forouzan ◽  
...  

Background:More than half of the patients attending emergency centers need analgesics. Injectable analgesics are currently the most common pain control strategy, but entail complications. Fentanyl is one of the most commonly used pain-relief opiates available in various forms.Objective:The present study aims to compare analgesic effects of nebulized against intravenous fentanyl for controlling pain due to limb fracture.Method:The present double-blind clinical trial recruited 213 patients presenting with fractured limbs to emergency departments. The first group of patients received 1 micg/kg of intravenous fentanyl citrate from a solution of 50 micg/ml and 5 ml of normal saline in nebulized form (group A), and the second group intravenously received 5 ml of normal saline and 4 micg/kg of 50 micg/ml solution of fentanyl citrate in nebulized form, whose volume reached 5 ml with the addition of normal saline (group B). Then, pain level was frequently measured and compared in the two groups for 20 minutes.Results:The results obtained showed reduced pain level in both the groups. However, point-by-point comparison of pain in the two groups revealed significantly greater pain reduction in intravenous fentanyl group (P<0.001). The need for adjuvant pain relief medication was 8.3% in intravenous fentanyl group and 24% in nebulized fentanyl group, with a significant difference between the two groups (P=0.002).Conclusion:According to the results, although nebulized fentanyl is effective in controlling pain due to limb fracture, it was less effective than intravenous type, and unable to control pain in many cases.


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