Comparative study on the effect of addition of potassium chloride to bupivacaine on the onset time and duration of inter scalene block
Journal Title: Medpulse International Journal of Anesthesiology - Year 2018, Vol 5, Issue 3
Abstract
Background: The interscalene block is a more established technique and has been used routinely for shoulder surgery. It is also more associated with well known, but short-lived, side effects than the supraclavicular technique. Aims and Objectives: to Study the Effect Of Addition Of Potassium Chloride To Bupivacaine On The Onset Time And Duration Of Inter Scalene Block. Methodology: The present study was carried out at Rajah Muthiah Medical College Hospital in a double blind-manner. Sixty patients of age group between 20-70 years of either sex of ASA grade I and II, were selected for the study. Each patient was randomly assigned to one of the two groups (30 patients each), group I or Group II. Group I (Potassium group) received 30 ml of 0.375% bupivacaine with 0.2 mmol of potassium chloride (prepared by adding 0.1ml of potassium chloride and 10ml distilled water to 20 ml of 0.5% bupivacaine). Group, II (Plain bupivacaine group) received 30ml of 0.375% bupivacaine only. These injections were given by interscalene approach. Statistical comparison was performed by student-'t' test and CHI-SQUARE test. Statistical analysis done by SPSS 19 version software. Result: The quality of sensory blockade was better in group I and the value was statistically significant when compared with group II. (X2 (1) =7.34, p=0.028). The quality of Motor blockade was better in group I and the value was statistically significant when compared with group II (X2 (1) =8.42, p=0.028). The number of adjutants used in group I were significantly less when compared to group II. The p value was <0.05 which is significant. Conclusion: It can be concluded that addition of potassium chloride to bupivacaine for brachial plexus block by interscalene route significantly decreases onset time, increases depth of blockade and prolongs the duration.
Authors and Affiliations
Swetha H R
Keywords
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- EP ID EP453543
- DOI 10.26611/1015535
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