The emergency physician has a variety of options for providing effective pain relief. A solid understanding of the local anesthetic agents and regional anesthetic techniques is an essential component of every emergency physician's analgesia armamentarium.

The majority of currently used anesthetic agents are derived from or associated with natural products, especially plants, as evidenced by cocaine that was isolated from coca (Erythroxylum coca, Erythroxylaceae) and became a prototype of modern local anesthetics and by thymol and eugenol contained in thyme (Thymus vulgaris, Lamiaceae) and clove (Syzygium aromaticum, Myrtaceae), respectively, bot...

To determine the effects of castration of calves, with or without local anesthesia, on plasma cortisol, scrotal circumference, ADG, and ADFI, 56 Friesian bulls (5.5 mo of age; mean +/- SE BW = 173 +/- 2 kg) were randomly assigned to each of seven treatments: 1) control (CON); 2) s.c. injection of .1 mg of a human serum albumin-GnRH conjugate with DEAE-dextran adjuvant (HSA-GnRH); 3) burdizzo ca...

BACKGROUND Dentists administer thousands of local anesthetic injections every day with few reports of serious complications. However, misjudging the anatomy involved during local anesthetic administration can result not only in inadequate or incomplete anesthesia, but in other complications such as paresthesia, bleeding or hematoma formation, or in serious systemic complications. OVERVIEW The...

To purchase reprints, contact The InnoVision Group, 101 Columbia, Aliso Viejo, CA 92656. Phone, (800) 8092273 or (949) 362-2050 (ext 532); fax, (949) 362-2049; e-mail, [email protected]. patients given local anesthetics also receive intravenous sedatives such as benzodiazepines to relieve anxiety. One of the main risks of local anesthesia is local toxic effects caused by accidental intravascula...

Cephalopod molluscs are among the most behaviorally and neurologically complex invertebrates. As they are now included in research animal welfare regulations in many countries, humane and effective anesthesia is required during invasive procedures. However, currently there is no evidence that agents believed to act as anesthetics produce effects beyond immobility. In this study we demonstrate, ...

BACKGROUND Pain and needle-phobia can be a problem during the application of local anesthesia with syringe and needle. OBJECTIVE To evaluate a jet-injection device (without needle) to deliver local anesthesia. METHODS Two hundred and six minor dermatological procedures using a jet-injection device for administering local anesthesia into skin tissue were performed. We comment on the technica...