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Veterinary anaesthesia and analgesia ; 35(1): 80-89, Aug 2007. ilus
Artigo em Inglês | MedCarib | ID: med-17790


OBJECTIVE: To investigate the anatomy of the brachial plexus, sciatic, and femoral nerves for the use of a peripheral nerve-stimulator to perform nerve blocks in dogs. STUDY DESIGN: Prospective experimental trial. ANIMALS: Four canine cadavers and four healthy adult dogs weighing 23 +/- 2.5 kg. METHODS: Phase I: in four canine cadavers, an anatomical study was conducted to evaluate accurate needle-insertion techniques. Phase II: the utility of these techniques, and the value of electrostimulation, were evaluated in four anesthetized dogs in lateral recumbency (medetomidine, 5 microg kg(-1)/ketamine 5 mg kg(-1)) using an electrical stimulator and shielded needles. RESULTS: For the brachial plexus, the needle was inserted cranial to the acromion, medial to the subscapularis muscle, at an angle of approximately 20-30 degrees in relation to a plane vertical to the surface on which the animal was lying, oriented parallel to the long axis of the animal, in a ventro-caudal direction. For the sciatic nerve, the needle was inserted just cranial to the sacrotuberous ligament, through the gluteus superficialis muscle, at an angle of approximately 60 degrees in relation to the horizontal plane, in a ventro-cranial direction, and up to the level of the ischium. For the femoral nerve, the needle was inserted perpendicular to the skin, just cranial to the femoral artery, and directed a little caudally. Using a peripheral nerve-stimulator, all nerves were located, and muscle contractions were elicited at a current of 0.2-0.4 mA. No complications were observed during the procedures. CONCLUSION: Electrostimulation of peripheral nerves is useful in locating the branches of the brachial plexus as well as the sciatic and femoral nerves in dogs. CLINICAL RELEVANCE: Peripheral nerve stimulation increases the reliability of a nerve block when compared with blind needle-insertion.

Cães , Animais , Analgesia , Plexo Braquial , Bloqueio Nervoso , Nervo Isquiático , Trinidad e Tobago
West Indian med. j ; 38(2): 116-7, June 1989.
Artigo em Inglês | MedCarib | ID: med-9856


A case is described in which the patient developed hoarseness following a left brachial plexus block, using the supraclavicular approach. Possible paralysis of the left recurrent laryngeal nerve is discussed. (AU)

Humanos , Adulto , Masculino , Plexo Braquial , Rouquidão/etiologia , Bloqueio Nervoso/efeitos adversos , Bupivacaína/efeitos adversos , Lidocaína/efeitos adversos
West Indian med. j ; 37(suppl): 46-7, 1988.
Artigo em Inglês | MedCarib | ID: med-6583


We decided to use the technique of supraclavicular brachial block at the Georgetown Public Hospital on patients undergoing surgery on the upper limb. A total of sixty patients were studied from January, 1986 to August, 1986. A supraclavicular brachial block was done using 40cc of 1 percent lignocaine with 0.02 mg of epinephrine. The results obtained showed that supraclavicular block is as effective as the other methods and has minimal side-effects (AU)

Humanos , Braço , Plexo Braquial/efeitos dos fármacos , Anestesia Local , Guiana
West Indian med. j ; 37(suppl): 46, 1988.
Artigo em Inglês | MedCarib | ID: med-6584


The upper extremity has a specially organized innervation, the brachial plexus, which can be easily blocked by a supraclavicular approach. However, its use for prolonged intra-operative and post-operative analgesia has only been recently explored. The rising costs of general anaesthetic agents and the associated hospital stay, together with the desirability of reducing, or eliminating, the need for systemic narcotic analgesics, prompted us to investigate prolonged brachial plexus analgesia. The method is inexpensive, usually not technically difficult, as safe as conventional local anaesthesia and suitable for both emergency and elective cases. A pilot study on 10 healthy patients was carried out between June and November, 1987. Patients of either sex, from 14 to 47 years old, were included. The three-dimensional approach to the brachial plexus of McIntosh and Mushin, using an intravenous cannula, was employed throughout. After injecting an initial test dose of local anaesthetic, the cannula was left in-situ for further "top up" doses, through a suitable injection port. Xylocaine (1-2 percent) was used for the initial block and bupivacaine, (0.5 percent) for the post-operative maintenance of analgesia. The mean dose of xylocaine for surgical anaesthesia was 5.42 mg/kg body weight, and the mean duration of anaesthesia 137.8 minutes. The mean time lapse to the first "top up" dose was 225.4 minutes and the mean duration of effect to the 2nd "top up" dose 412.5 minutes. No patient required more than two post-operative doses. This pilot study appears to be sufficiently promising to warrant a more extensive trial of prolonged brachial plexus analgesia (AU)

Masculino , Feminino , Adolescente , Adulto , Plexo Braquial/efeitos dos fármacos , Anestesia Local/métodos , Jamaica
Mona; Medical Learning Resources Unit, The University of the West Indies; 2 ed; 1986. 35-Pt.1; 28-Pt.2 p. ilus, tab.
Monografia em Inglês | MedCarib | ID: med-16561
Kingston; University of the West Indies (Mona). Medical Learning Resources Unit; 1980. 33 p. ills.
Monografia em Inglês | MedCarib | ID: med-13980
Kingston; University of the West Indies (Mona).Medical Learning Resources Unit; 1980. 41 p. ills.
Monografia em Inglês | MedCarib | ID: med-13981