[Optimal dose of local anesthetic mixture in ultrasound-guided infraclavicular brachial plexus block via coracoid approach: analysis of 160 cases].
Zhonghua Yi Xue Za Zhi
; 89(7): 449-52, 2009 Feb 24.
Article
em Zh
| MEDLINE
| ID: mdl-19567091
ABSTRACT
OBJECTIVE:
To investigate the optimal dose of local anesthetic mixture in ultrasound-guided infraclavicular brachial plexus block via coracoid approach.METHODS:
160 patients scheduled for surgery of the hand or forearm were randomly divided into 4 equal groups (Groups A, B, C, and D). To receive 8, 7, 6, or 5 ml of anesthetic mixture of 0.75% ropivacaine and 2% lidocaine for radial nerve, axillary nerve, median nerve, ulnar nerve, median cutaneous nerve of arm, median antebrachial cutaneous nerve, and lateral antebrachial cutaneous nerve respectively ultrasound-guided infraclavicular brachial plexus block via coracoid approach. The time for anesthesia taking effect, anesthesia maintenance time, and quality of sensory block were observed.RESULTS:
Anesthesia took effect about 4 minutes after injection in these 4 groups without significant differences among then (all P > 0.05). The good analgesic effect rates of Groups A, B, and C were all 100%, all significantly higher than that of Group D (87.5%, P = 0.027). The block maintenance times of Groups A, B, and C were (377 +/- 111) min, (369 +/- 135) min, and (351 +/- 112) min respectively, all significantly longer than that of Group D [(296 +/- 101) min, P = 0.024]. No anesthesia-related complication was found in these 4 groups.CONCLUSION:
Ultrasound-guided infraclavicular brachial plexus block via coracoid approach can reduce the volume of local anesthetic mixture. The dose of 6 ml local anesthetic mixture for each nerve fascicle, totally 18 ml, provides good analgesic effect and does not seem to affect the time for anesthesia taking effect.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Plexo Braquial
/
Extremidade Superior
/
Anestésicos Locais
/
Bloqueio Nervoso
Tipo de estudo:
Clinical_trials
/
Diagnostic_studies
Limite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Zh
Revista:
Zhonghua Yi Xue Za Zhi
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
China