Open AccessHEMODYNAMIC CHANGES AMONG PATIENTS UNDERGOING LOWER LIMB ORTHOPAEDIC SURGERIES UNDER HYPERBARIC BUPIVACAINE WITH CLONIDINE IN TWO DIFFERENT DOSES
Author(s) -
Preethi Hn,
Santhosh Nv,
Ravishankar Bm
Publication year - 2020
Publication title -
indian journal of applied research
Language(s) - English
DOI - 10.36106/ijar/7901530
Subject(s) - medicine , anesthesia , bupivacaine , heart rate , brachial plexus block , bradycardia , hemodynamics , clonidine , blood pressure , surgery , brachial plexus
Absorption of local anaesthetics is determined by site of injection, dosage and addition of a vasoconstrictor. Absorption is faster in regions of higher vascularity and also in some regions eg. Absorption of drug after inter-costal block is faster than after brachial plexus block. Higher dosage tends to be absorbed faster. Addition of vasoconstrictor does not prolong the duration of action of bupivacaine significantly but decrease its absorption. Methodology: Baseline heart rate, non Invasive blood pressure, spo2, respiratory rate was recorded every minute for 5 minute, then every 5 minutes till 1 hour of surgery, then every 15 minutes till the end of surgery postoperatively every 30 minutes till patients complain of pain. Results: Heart rate variability noticed and compared between the two groups in our study revealed a significant difference in the mean heart rate between Group BC30 and Group BC60 at 1,10,15,20,25 and 30 minute respectively. Otherwise the mean HR of the Groups are comparable at other time intervals. Conclusion: However, there was not statistical difference in the incidence of bradycardia noted between the two groups.