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Year : 2021  |  Volume : 15  |  Issue : 1  |  Page : 81-86

Comparison of oral versus intramuscular clonidine for prolongation of bupivacaine spinal anesthesia in patients undergoing total abdominal hysterectomy

1 Department of Anesthesia and Critical Care, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
2 Department of Anesthesia and Critical Care, Tirthanker Mahaveer Medical College and Research Centre, Moradabad, Uttar Pradesh, India

Correspondence Address:
Dr. Manoj Tripathi
Department of Anesthesia and Critical Care, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/aer.aer_84_21

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Background: Clonidine is a commonly used agent for premedication through oral, intravenous, and intramuscular route. Very few studies mentioned intramuscular clonidine as premedication. Aims and Objectives: The aim of the present study is to compare oral and intramuscular clonidine as predication agent in bupivacaine spinal anesthesia patients. Materials and Methods: In our study, recruited patients were randomly allocated in three groups of 32 each. All patients received intrathecal bupivacaine heavy 3 mL with oral 150 μg clonidine in Group 1, intramuscular 150 μg clonidine in Group 2, and oral placebo tablet in Group 3 1 h before taking the patient in operation theater. We have assessed for duration of sensory block, duration of motor block, duration of analgesia, sedation score, and hemodynamic changes in groups. Statistical Analysis: The parametric data were expressed as mean ± standard deviation. Primary analysis of parametric data between the two groups was done by student's t-test, and among three groups, analysis of variance was used. Results: Duration of motor block was found significantly high in Group 2 than Group 1 (208.06 ± 9.48 vs. 200.25 ± 9.42; P < 0.05). Duration of sensory block was also found significantly high in Group 2 than Group 1 (219.69 ± 9.44 vs. 210.25 ± 9.68; P < 0.05). Time to give first dose of analgesia was also found greater in Group 2 than Group 1 (234.66 ± 11.76 vs. 217.75 ± 10.09; P < 0.05). Sedation score and other side effects were found statistically nonsignificant between Group 1 and 2. Conclusion: We can conclude that preoperative intramuscular clonidine is a better alternate of oral clonidine for bupivacaine spinal anesthesia in terms of long duration of motor and sensory block and less requirement of analgesic with clinically insignificant side effects.

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