COMPARISON OF INTRATHECAL HYPERBARIC ROPIVACAINE 0.5% WITH AND WITHOUT 75 MG MAGNESIUM SULFATE AS AN ADJUVANT FOR INFRA UMBILICAL SURGERIES: A DOUBLE-BLIND RANDOMIZED CLINICAL TRIAL

SRINIDHI SRIKANTH; ANTONY JOHN CHARLES S; KAMESHWAR YV; GAYATRI MISHRA

doi:10.22159/ajpcr.2021.v14i9.42497

Authors

SRINIDHI SRIKANTH Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth Deemed to be University, Pillayarkuppam, Puducherry, India.
ANTONY JOHN CHARLES S Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth Deemed to be University, Pillayarkuppam, Puducherry, India.
KAMESHWAR YV Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth Deemed to be University, Pillayarkuppam, Puducherry, India.
GAYATRI MISHRA Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth Deemed to be University, Pillayarkuppam, Puducherry, India.

DOI:

https://doi.org/10.22159/ajpcr.2021.v14i9.42497

Keywords:

Intrathecal magnesium sulfate, Intrathecal hyperbaric ropivacaine, Day care anesthesia

Abstract

Objective: Intrathecal magnesium as an adjuvant to hyperbaric ropivacaine could extend duration of sensory blockade and improve the quality of post-operative analgesia; thereby reducing opioid requirements and its adverse effects. Hence, we conducted this prospective, randomized, double-blind clinical trial to observe its effects for day care surgeries.

Methods: After obtaining institutional ethical committee approval and registration of trial, patients’ informed consent was taken and eighty adult patients of either gender, ASA 1 and 2, posted for infra umbilical surgeries were divided into two groups: Group RM received 3 ml hyperbaric Ropivacaine with 0.75 ml magnesium sulfate (75 mg) and Group R received 3 ml hyperbaric Ropivacaine with 0.75 ml sterile water. Sensory and motor blockade parameters, hemodynamic variables, and adverse effects were monitored, analyzed using appropriate statistical tests.

Results: Total duration of sensory blockade was significantly prolonged in Group RM compared to Group R (242.8 ± 9.9 versus 186.6 ± 8.4 min) (***p<0.001). Complete motor regression was observed significantly earlier in Group RM than in Group R (151.3 ± 7.8 versus 184.7 ± 5.6 min) (*p<0.05). Post-operative pain free interval was significantly prolonged in group RM compared to group R (725.2 ± 18.6 vs. 515.2 ± 17.8 min) (***p<0.001).

Conclusion: We concluded that intrathecal magnesium as an adjuvant to hyperbaric Ropivacaine significantly prolonged both sensory blockade duration, post-operative pain-free interval without increasing motor blockade duration and the incidence of adverse effects.

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Author Biographies

SRINIDHI SRIKANTH, Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth Deemed to be University, Pillayarkuppam, Puducherry, India.

Resident. Anaesthesiology.

ANTONY JOHN CHARLES S, Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth Deemed to be University, Pillayarkuppam, Puducherry, India.

Associate Professor. Anaesthesiology.

KAMESHWAR YV, Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth Deemed to be University, Pillayarkuppam, Puducherry, India.

Assistant Professor. Anaesthesiology.

GAYATRI MISHRA, Department of Anaesthesiology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth Deemed to be University, Pillayarkuppam, Puducherry, India.

Associate Professor. Anaesthesiology.

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