Injections of local anesthetics, saline, "dry needling," or other stimuli at specific, tender loci (trigger or acupuncture points) are reportedly efficacious in treatment of chronic pain syndromes. In a randomized, double-blind crossover study, subjective responses of 15 patients with myofascial syndrome to trigger-point injections of either bupivacaine 0.5%, etidocaine 1%, or physiologic saline without preservative were compared. Responses in six pain-related categories were determined before treatment and 15 minutes, 24 hours, and 7 days after treatment. Trigger-point injections with bupivacaine and etidocaine were generally preferred over saline in several pain-tested categories. Implications and possible mechanisms are discussed.
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Objective: This study was conducted to compare the anesthetic and analgesic efficacy of bupivacaine with other local anesthetic agents routinely used for mandibular third molar surgery.
Method And Materials: Four electronic databases (PubMed, Scopus, Cochrane, and Web of Science) were explored to isolate randomized controlled trials up to 10 February 2019. The anesthetic and analgesic efficacies were assessed using six evaluation outcomes: onset of anesthesia, success of anesthesia, duration of anesthesia, duration of analgesia, pain score on the fourth postoperative hour, and number of analgesics consumed.
Toxicol Rev
April 2007
Department of Anesthesiology, University of Illinois College of Medicine, Chicago, and University of Illinois Hospital 60612, USA.
Systemic local anaesthetic toxicity is a rare but potentially fatal complication of regional anaesthesia. This toxicity is due to inhibition of ionotropic and metabotropic cell signal systems and possibly mitochondrial metabolism. It is associated with CNS excitation and, in the extreme, refractory cardiac dysfunction and circulatory collapse.
View Article and Find Full Text PDFBiophys Chem
May 2005
Faculdade de Farmácia, Universidade de Sorocaba, SP, Brazil.
We have collected evidences of a "transient site" for the local anesthetics (LA) lidocaine, etidocaine, bupivacaine and mepivacaine in sonicated egg phosphatidylcholine (EPC) vesicles. The effects of the uncharged anesthetic species at a fixed LA/EPC ratio inside the bilayer were measured by chemical shifts (C.S.
View Article and Find Full Text PDFBest Pract Res Clin Anaesthesiol
March 2003
Department of Anesthesiology, University Hospital Maastricht, PO Box 5800, 6202 AZ Maastricht, The Netherlands.
The complications of failure, neural injury and local anaesthetic toxicity are common to all regional anaesthetic techniques, and individual techniques are associated with specific complications. All potential candidates for regional anaesthesia should be thoroughly evaluated and informed of potential complications. Central neural blockades still account for more than 70% of regional anaesthesia procedures.
View Article and Find Full Text PDFAnaesthesist
April 2003
Abteilung Anästhesie, Orthopädische Universitätsklinik Balgrist, Zürich, Switzerland.
Local anesthetics provoke reversible blockade of nerves by interaction with sodium channels in membranes of nerves. The uncharged molecular configuration of the local anesthetic penetrates the membrane from the outside and the charged configuration then interacts with the sodium channel from the inside. The potency of a local anesthetic is determined mainly by lipid solubility, the time of onset by the pK(a) of the substance and the duration of action by protein binding.
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