Key result
The Circle absorption system and Bain breathing system were equally effective in maintaining hypocapnia during intracranial surgery, although the Bain system demonstrated significantly higher rebreathing.
Why the study?
Does the Circle absorption system compared to the Bain breathing system improve the maintenance of effective hypocapnia in adult patients undergoing intracranial surgery?
Population
50 adult patients of ASA-I or II physical status requiring intracranial surgeries under General Anesthesia
Comparison
Circle absorption system with a fresh gas flow… vs Bain breathing system with a fresh gas flow of 6…
Design
RCT, randomly allocated in two groups
Follow-up
till the time of reversal
Authors
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Both systems maintain effective hypocapnia in intracranial surgery; confirms equivalence but flags rebreathing risk with Bain.
RCT (n=50)
Randomly allocated
No
Does the Circle absorption system compared to the Bain breathing system improve the maintenance of effective hypocapnia in adult patients undergoing intracranial surgery?
Absolute Event Rate: 28.23% vs 28.4%
p-value: p=>0.05
Joyanta Kumar Choudhury (2015) conducted an RCT in Intracranial surgery (n=50). Circle absorption system vs. Bain breathing system (Fresh gas flow of 6 Liters) was evaluated on Average End Tidal Carbon Dioxide (EtCO2) in mm Hg (p=>0.05). The Circle absorption system and Bain breathing system were equally effective in maintaining hypocapnia during intracranial surgery, although the Bain system demonstrated significantly higher rebreathing.
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