SONOLOCATION GUIDED AXILLARY BRACHIAL PLEXUS BLOCK USING BUPIVACAINE AND HYPERBARIC BUPIVACAINE IN DOGS AND GOATS
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Date
2012
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Publisher
Anand Agricultural University, Anand
Abstract
The present clinical study evaluated the efficacy of bupivacaine HCl (0.5%)
and hyperbaric bupivacaine (0.5%) for axillary brachial plexus block in 12 dogs and
12 goats under ultrasonographic guidance with aid of peripheral nerve stimulator
(PNS). Ultrasonography of axillary brachial plexus was performed using 7.5-10 MHz
linear transducer in all dogs and goats. The axillary brachial plexus was identified as
three rounded hyperechoic structures with axillary artery as pulsative hypoechoic
structure kept as land mark, also located with the maximum muscle twitching at 0.4
mA current with aid of peripheral nerve stimulator in all animals. Axillary BPB
performed using bupivacaine HCl (0.5%) in six dogs, showed complete BPB at dose
rate of 2.5 mg/kg b.wt. in two dogs only with mean full onset of 140 + 40 minutes;
while in six dogs, wherein hyperbaric bupivacaine was used, four dogs showed a
complete BPB at dose rate of 3.0 mg/kg b.wt. with mean full onset of 100 + 40
minutes. Axillary BPB performed using bupivacaine HCl (0.5%) in six goats, showed
complete BPB at dose rate of 3.0 mg/kg b.wt. in three goats with mean full onset of
180 + 40 minutes; while in six goats, wherein hyperbaric bupivacaine, four goats
showed a complete BPB at dose rate of 3.0 mg/kg b.wt. with mean full onset of
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Keywords
Veterinary Surgery, Study