Zaragoza-Lemus G, Sánchez-Velasco B, Pantoja-Herrera M

Language: Spanish
References: 17
Page: 191-195
PDF size: 65.87 Kb.

ABSTRACT

Background: Once in the axillary region, the branches of the brachial plexus spread apart. This spreading may be taken advantage of by using large volumes of local anesthetic to obtain a uniform blockade, with a better success rate. bjective: To compare the use of small volumes vs large volumes of local anesthetic to reach complete sensitive and motor blockade for hand surgery. Methods: One hundred and twenty patients scheduled for hand surgery, ASA class I-II-E, were divided into two groups. Patients in group I received a small volume of local anesthetic (40 ml). Patients in group II received a volume according to their weight (1 ml/kg body weight), which was considered a large volume. An external observer blind recorded the effectiveness in terms of motor and sensitive blockade and its side effects, both in the operating room and in the post-anesthetics care unit. Results: Complete anesthesia was obtained in 78% of patients in Group I vs 96% in Group II. Motor blockade was longer in Group II (p ‹ 0.005). Vital signs remained within safe ranges. Conclusion: Large volumes of anesthetic are necessary to bathe all nervous trunks. This may lead to higher success rates and better quality anesthesia and analgesia.

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