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A eutectic mixture of lidocaine and prilocaine (EMLA) is used topically to provide local anesthesia for a variety of painful superficial procedures. Although the side effects of EMLA are usually mild and transient local reactions, potentially life-threatening complications can occur. We report a
Systemic toxic reactions to local anesthetics are brought about by absolute overdosage, and, most commonly, inadvertent intravascular injections. The anti-convulsant action of ketamine has been studied. However, the effect of ketamine on lidocaine-induced convulsions has not been reported. This
We investigated the effect of clonidine on intravenous (i.v.) lidocaine-induced haemodynamic changes and convulsions in awake rats. Wistar rats (200-250 g) were divided into three groups of eight and were pretreated with i.v. clonidine or normal saline 15 min before lidocaine infusion. Group 1
Lidocaine has been widely used as a local anesthetic as well as an antiarrhythmic. Its use in epidural anesthesia is increasing, which has introduced new risk and potential for harm not associated with older indications. We present a case of convulsion and atrial fibrillation seen after
Large concentrations of sevoflurane and isoflurane, but not halothane, induce spikes in the electroencephalogram. To elucidate whether these proconvulsant effects affect lidocaine-induced seizures, we compared the effects of sevoflurane, isoflurane, and halothane in cats. Fifty animals were
We investigated the effect of flumazenil on intravenous (IV) lidocaine-induced convulsions with and without diazepam pretreatment in rats. Wistar rats (200-250 g) were divided into four groups of seven each and were pretreated with IV diazepam or normal saline solution at 6 min and flumazenil or
Lidocaine and MgSO4 are often coadministered to patients with pregnancy-induced hypertension. This study examined whether MgSO4 alters the lidocaine-seizure threshold in the rat and, if so, whether systemic MgSO4 administration is as effective as intracerebroventricular MgSO4 infusion. In Experiment
Hypothesizing that propofol's pro and anticonvulsant effects might be dose dependent, we determined the effect of 25, 50, and 100% of a previously determined anesthetic dose of propofol for rats on the amount of lidocaine required to induce seizures. Lidocaine was infused at 2.5 mg kg-1 min-1 into
Surgical procedures require general anesthesia using combinations of drugs including fentanyl and/or lidocaine. Because many of these drugs have bimodal anticonvulsant/proconvulsant effects, they must be administered carefully. We herein report a case of seizure attack during anesthesia induction
An experimental animal model of complex partial seizures which become secondarily generalized is produced by microinfusion of the GABA antagonist bicuculline (BIC) into the deep prepiriform cortex (DPC) of rats. In the present study, we investigated the effects of microinfusion of the local
Electroconvulsive shock (ECS) has anticonvulsant properties while a proconvulsant effect has not, so far, been documented. In the present experiments, we determine whether repeated ECSs lead to an increased seizure susceptibility to lidocaine (lignocaine) in rats. Furthermore, we investigated
Ivermectin is one of the most commonly used drugs in pharmacotherapy of parasitic diseases in domestic and wild animals caused by parasitic nematodes and arthropods. However, ivermectin and other avermectins very often produce side-effects in hosts. The most dominant clinical symptom of ivermectin
We studied intravenous lidocaine-induced convulsions in rats to determine whether added epinephrine influences the provocation of lidocaine toxicity. Wistar rats (200-250 g) were divided into three groups of ten, depending on the concentration of epinephrine added to lidocaine. Group 1: plain 1.5%
The influence of sevoflurane on lidocaine-induced convulsions was studied in cats. The convulsive threshold (mean +/- SD) was 41.4 +/- 6.5 mg. l(-1) with lidocaine infusion (6 mg.kg(-1).min(-1)), increasing significantly to 66.6 +/- 10.9 mg. l(-1) when the end-tidal concentration of sevoflurane was
Influences of drug-induced manipulations of central serotonergic function on lidocaine- and pentylenetetrazol (PTZ)-induced convulsions were examined in mice. Agents that suppressed serotonergic transmission increased, whereas drugs that facilitated serotonin (5-HT) function decreased the incidence