Comparative study on the onset time and duration of brachial plexus block with addition of potassium chloride to bupivacaine versus plain bupivacaine
Journal Title: Asian Pacific Journal of Health Sciences - Year 2016, Vol 3, Issue 3
Abstract
Background: Peripheral nerve blockade remains a well accepted component of comprehensive anaesthetic care. The onset of brachial plexus block is slow because the anaesthetic is usually deposited at some distance from the nerve and must diffuse through various tissue barriers before reaching the nerve membrane. Aim: Comparative study on the onset time and duration of supraclavicular brachial plexus block with addition of potassium chloride to bupivacaine versus plain bupivacaine. Methodology: Sixty patients belonging to ASA class I and II were included in the study and were randomly divided into two groups with 30 patients in each group. Group – I: KCl group received 30 ml of 0.375% bupivacaine with 0.2 mmol of potassium chloride (prepared by adding 0.1 ml (0.2mmol) of potassium chloride and 7.5 ml of distilled water to 22.5 ml of 0.5% bupivacaine). Group – II: Non KCl group/ plain bupivacaine group received 30 ml of 0.375% bupivacaine. Results: The mean time for onset of sensory block in group I was 17.7 ± 2.80 min which was significantly faster when compared to group II with a mean time of 27.86 ± 2.55 min. The mean time for onset of motor block in group I was 14.86 ± 2.56 min which was significantly faster compared to group II with a mean time of 25.46 ± 3.04 mins. The mean duration of sensory block in group I was 357.8 ± 101.9 min which was significantly prolonged when compared to group II mean duration of 256.1 ± 71.48 min. The mean duration of motor block in group I was 429.1 ± 85.09 min which was significantly prolonged when compared to group II mean duration of 336.46 ± 81.88 min. The number of supplements used in group I were significantly less when compared to group II. There was no statistically significant difference found between the group’s in terms of duration of surgery Conclusion: On the basis of the study one can draw the conclusion that addition of potassium chloride to bupivacaine hastens the onset of blockade and improves the duration of analgesia and motor blockade. It also improves the quality of analgesia, whereas quality of motor blockade remains the same.
Authors and Affiliations
Dr. R Pandu Naik
Keywords
Related Articles
- EP ID EP524479
- DOI 10.21276/apjhs.2016.3.3.5
- Views 173
- Downloads 0
Hepatoprotective activity of aqueous and ethanol extracts of Feronia elephantum Correa. Stem bark and Root
In the present study, the hepatoprotective activity of aqueous and ethanol extracts of Feronia elephantum Correa. (Rutaceae) stem bark and root was evaluated against carbon tetrachloride (CCl4)-induced hepatic damage in...
Pattern of comorbidities in psoriasis patients from western India and the relation between disease severity and systemic comoridities: cross sectional study at a tertiary care centre
Background: Various studies have shown association of much physical and psychosocial comorbidity with psoriasis. Aims & Objectives: To note pattern of various comorbidities in psoriasis patients and the association of sy...
Histopathological spectrum of meningioma and its variants
Background: Meningiomas are tumors that arise from the lepto meningeal covering of brain and spinal cord, accounting for upto 34% of all CNS tumors. Mostly meningiomas are slow growing and are generally considered benign...
Endometrial histopathological changes associated with dysfunctional uterine bleeding
Dysfunctional uterine bleeding occurs in the absence of any pelvic pathology with disruption of normal patterns of endometrial stimulation. It is diagnosed by exclusion and is found more commonly in women around perimeno...
A comparative study of intravenous tramadol versus butorphanol for control of shivering in patients undergoing spinal anesthesia
Background: Shivering in patients following spinal anesthesia is a common problem which is cumbersome for the operating room personnel as well as the patient. Various methods, both pharmacological and non-pharmacological...