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Comparison between Dexmedetomidine and Midazolam for Postoperative Analgesia and Sedation in Mechanically Ventilated Patients

Hassaan Muhammed , Shishir KR , Hassaan Muhammed , Ravikumar Manchala

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Indian Journal of Anesthesia and Analgesia 7(2):p 547-553, Mar-Apr 2020. | DOI: http://dx.doi.org/10.21088/ijaa.2349.8471.7220.16

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Shishir KR, Hassaan Muhammed, Ravikumar Manchala. Comparison between Dexmedetomidine and Midazolam for
Postoperative Analgesia and Sedation in Mechanically Ventilated Patients. Indian J Anesth Analg. 2020;7(2):547–553.

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Received : N/A         Accepted : N/A          Published : N/A

Abstract

 

Context: Postoperative patients requiring mechanical ventilation in surgical ICU’s require adequate sedation and analgesia in order to modulate physiological response to stress and pain, hence reducing morbidity and mortality in the ICU. The consequences of inadequate sedation and analgesia can be sustained, including selfremoval of intraluminal tubes and vascular catheters, aggressive behavior by patients against care providers, and poor patient-ventilator synchrony. Oversedation can lead to prolonged duration of mechanical ventilation,
more prolonged ICU, and hospital stays. Aims: To evaluate the effects of dexmedetomidine and midazolam for sedation in postoperative mechanically ventilated patients. Study Design: Arandomized prospective study. Methods: 100 patients aged above 18 years after major abdominal or pelvic surgeries requiring a minimum of 6 hours of artificial ventilation admitted to intensive care units were included as subjects, and they were randomly divided into two groups of fifty each. Group D received Dexmedetomidine, a loading dose of 2.5 μg/kg, and a maintenance dose of 0.5 g/kg/hr, and Group M received Midazolam a loading dose of 0.05 mg/kg and a maintenance dose of 0.025 mg/kg/hr. Both groups were compared for the level of sedation using Ramsay sedation score, hemodynamic variables, safety profile. Statistical analysis used: Chi-square test and Student’s unpaired t-test. Results: Ramsay sedation score was within the desired level (2–4) in both
dexmedetomidine and midazolam group (p > 0.05). Patients who received dexmedetomidine infusion had significantly lower heart rates compared to patients who received midazolam infusion (p < 0.00), there
were no significant differences in SBP, DBP, MAP and oxygen saturation between two groups. Conclusion: Dexmedetomidine and midazolam are safe sedative drugs for postoperative mechanically ventilated patients.
Patients were easily aroused to cooperate without signs of irritation within the dexmedetomidine group.

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Cite this article

 

Shishir KR, Hassaan Muhammed, Ravikumar Manchala. Comparison between Dexmedetomidine and Midazolam for
Postoperative Analgesia and Sedation in Mechanically Ventilated Patients. Indian J Anesth Analg. 2020;7(2):547–553.

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Received Accepted Published
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DOI: http://dx.doi.org/10.21088/ijaa.2349.8471.7220.16

Keywords

Dexmedetomidine; Midazolam; Mechanical ventilation.

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