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Comparison of Intraocular Pressure and Hemodynamic Response Subsequent to Tracheal Tube versus Laryngeal Tube Insertion during General Anesthesia

AUTHORS

SH Taregh 1 , MR Katbab 1 , Asadollah Katbab 2 , * , H Eghbal 1 , A Amini 1

1 Department of Anesthesiology, School of Medicine, Shiraz University of Medical Sciences, Fars, Iran

2 Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, dr_aktb@yahoo.com, Fars, Iran

How to Cite: Taregh S, Katbab M, Katbab A, Eghbal H, Amini A. Comparison of Intraocular Pressure and Hemodynamic Response Subsequent to Tracheal Tube versus Laryngeal Tube Insertion during General Anesthesia, Iran Red Crescent Med J. Online ahead of Print ; 11(1):52-56.

ARTICLE INFORMATION

Iranian Red Crescent Medical Journal: 11 (1); 52-56
Article Type: Research Article
Received: March 18, 2008
Accepted: June 22, 2008

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Abstract

Background: It is well accepted that intraocular pressure should be controlled during general anesthesia (G/A) for intraocular procedures. This study was performed to compare the effects of the laryngeal and tracheal tubes on intraocular pressure (IOP), mean arterial pressure (MAP) and heart rate (HR) during the course of G/A.

 

Methods: Eighty adult patients were randomly allocated to two groups for cataract surgery. Group A (n=40) underwent laryngeal tube (LT) placement and group B (n=40) had tracheal tube (TT) insertion. Anesthesia was induced by midazolam, fentanyl, propofol and atracurium and was maintained by propofol and 50% nitrous oxide in oxygen. IOP, MAP and HR were measured before and 3 minutes after induction of G/A, 1 and 5 minutes after tube placement, at the end of the operation, and 1 minute after extubation.

 

Results: The IOP at 1 minute after removal of the tubes was significantly higher in the TT group than the LT group. The MAP at 1 minute and heart rate at 1 and 5 minutes after placement of the tubes were significantly higher in TT group than the LT group.

 

Conclusion: In the course of G/A, using the same anesthetic agents such as propofol, and atracurium, LT had better control than TT on IOP, MAP and HR.

 

Keywords

Heart Rate Intraocular pressure (IOP) Laryngeal tube Mean Arterial Pressure Tracheal tube

© 0, Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

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