Đánh giá một số yếu tố tương quan ảnh hưởng đến gây tê đám rối thần kinh cánh tay trong phẫu thuật chi trên

Abstract

EVALUATION OF SOME CORRELATIVE FACTORS AFFECTING TO BRACHIAL PLEXUS BLOCK IN UPPER LIMB SURGERIES Objective: To assess correlations between age and onset sensory block, age and duration of sensory block, the procedure time and BMI. As well as evaluating the degree of sensory and motor blockade. Subjects and methods: 120 patients underwent upper limb surgery in Hue Central Hospital from 5/2017 to 6/2018. Patients were divided into two groups, group I was 60 patients undergoing ultrasound-guided supraclavicular brachial plexus block, group II was 60 patients with nerve stimulor technique. Each group received 25ml levobupivacaine 0.5% and 1 / 200,000 adrenalin. Results: There were the strong positive correlation between the procedure time and BMI, age and duration of sensory block. There was an inverse correlation between age and onset sensory block. The procedure time was 9,82 ± 4,55 minutes in group I and 14,73 ± 4,73 minutes in group II (p < 0,05). The onset of sensory and motor block was 6,15 ± 1,60 minutes and 7,95 ± 1,05 minutes in group I and 9,92 ± 2,88 minutes and 12,63 ± 2,15 minutes respectively in group II (p < 0,05). The duration of sensory and motor block was 481,38± 116,66 minutes and 412,97 ± 107,32 minutes for group I and 319,22 ± 143,14 minutes and 205,88 ± 48,96 minutes respectively in group II. Conclusion: The procedure time and BMI, age and duration of sensory block, age and onset sensory block, all of them were strongly correlated. Ultrasound guidance for supraclavicular brachial plexus blockade provides a block that was faster in onset, longer duration of block. Key words: brachial plexus block, upper limb surgeries