Articles: pain-measurement.
-
Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
Use of a simple pain model to evaluate analgesic activity of ibuprofen versus paracetamol.
To evaluate the analgesic activity of ibuprofen against paracetamol using a simple pain model. ⋯ Sore throat pain provided a sensitive model to assess the analgesic efficacy of class I analgesics and discriminated between the analgesic efficacy of ibuprofen and paracetamol.
-
Ugeskrift for laeger · Aug 2000
Randomized Controlled Trial Clinical Trial[Neutralization of lidocaine-adrenaline. A simple method for less painful application of local anesthesia].
The amount of sodium bicarbonate necessary to neutralise commercially available lignocaine-epinephrine (pH 4.7) to physiologically neutral pH (7.4) was established. The analysis showed that neutral pH could be accomplished by adding 1.0 ml sodium bicarbonate (8.4 g/l) to 10 ml lignocaine-epinephrine (1%, 5 microgram/ml). Chemical analysis also established that the neutralised lignocaine-epinephrine was stable for 24 hours after adding sodium bicarbonate. A double-blinded randomised clinical trial with crossover design done on volunteers from hospital staff proved that injection of neutralised lignocaine-epinephrine is less painful than commercially available lignocaine-epinephrine (p < 0.001).
-
Anesthesia and analgesia · Jun 2000
Randomized Controlled Trial Clinical TrialThe assessment of dermatomal level of surgical anesthesia after spinal tetracaine.
Transcutaneous electrical stimulation (TES), a 60-mA, 50-Hz continuous square wave, has been considered equivalent to surgical incision. We examined whether TES at a smaller current (10 mA) can be used to predict surgical anesthesia and compare the results with sensory block to cold, pinprick, and touch after the administration of spinal tetracaine. Two groups of 40 consecutive patients, 17-69 yr old and 70 yr old or older received a subarachnoid injection of 0. 5% tetracaine in 10% glucose or saline according to the type of surgery. Patients undergoing abdominal surgery received glucose solution, and those scheduled for lower extremities surgery received saline solution, and thus, the resultant four groups of patients were studied. Neural block was assessed by the loss of sensation to cold, pinprick, touch, and TES at 10 mA (T10s), and tolerance (i.e., the loss of pain or discomfort) to TES at 10 (T10p) and 60 (T60) mA. Dermatomal levels of sensory block to cold, pinprick, and touch that were cephalad to T60 varied widely. In contrast, dermatomal levels of T10s and T10p cephalad to T60 were less variable, and the difference between T10s and T60 was the smallest among all the differences in any groups. Our results demonstrate that, regardless of patient age and baricity of a local anesthetic solution, T10s is a good predictor of T60 equivalent to the dermatomal level of surgical anesthesia. ⋯ Our results show that the loss of sensation to transcutaneous electrical stimulation at 10 mA, but not cold, pinprick, or touch, is a good predictor of the dermatomal level of block to transcutaneous electrical stimulation at 60 mA, which is considered equivalent to the dermatomal level of surgical anesthesia after the administration of spinal anesthesia.
-
Fertility and sterility · Jun 2000
Randomized Controlled Trial Clinical TrialStepwise pain score analysis of the effect of local lignocaine on outpatient hysteroscopy: a randomized, double-blind, placebo-controlled trial.
To assess the efficacy of lignocaine gel in reducing the overall pain and pain of individual steps during outpatient hysteroscopy in comparison with placebo (no anesthesia). ⋯ Outpatient hysteroscopy without anesthesia is acceptable to most Chinese women, and the local application of lignocaine gel is not effective in reducing pain.
-
Drug Alcohol Depend · Jun 2000
Randomized Controlled Trial Clinical TrialAntinociceptive, subjective and behavioral effects of smoked marijuana in humans.
The purpose of this study was to determine whether marijuana produced dose-dependent antinociception in humans and, if so, whether endogenous opiates modulate this effect. A total of five male regular marijuana users participated in three test sessions during which they smoked cigarettes containing 0% (placebo) and 3. 55% Delta(9)-tetrahydrocannabinol (Delta(9)-THC) (active). Each of four controlled smoking bouts per session, spaced at 40-min intervals, consisted of nine puffs from active and placebo cigarettes (three cigarettes, three puffs per cigarette, one puff per min). ⋯ Before smoking, between smoking bouts and postsmoking, participants completed an assessment battery that included antinociceptive (finger withdrawal from radiant heat stimulation), biological, subjective, observer-rated signs and performance measures. Marijuana produced significant dose-dependent antinociception (increased finger withdrawal latency) and biobehavioral effects. Naltrexone did not significantly influence marijuana dose-effect curves, suggesting no role of endogenous opiates in marijuana-induced antinociception under these conditions.