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1.
Anesthesia and Pain Medicine ; : 75-83, 2023.
Article in English | WPRIM | ID: wpr-966215

ABSTRACT

Changes in tissue oxygen saturation determined by near-infrared spectroscopy (NIRS) may help predict and determine the success of a lateral infraclavicular (LIC) block.We investigated whether evaluation of tissue oxygen saturation determined by NIRS couldbe an indicator of LIC block success.Methods: Forty patients scheduled for hand or forearm surgery under LIC block were studied. NIRS sensors were placed on the ventral aspect of both mid-forearms, and the contralateral hand was used as the control group. NIRS values were recorded before the block andat regular intervals during the following 30 min.Results: NIRS values were significantly higher in the successfully blocked patients whencompared to the complete failure, partial failure, and contralateral hand groups at the 10thmin. In the successfully blocked patients, NIRS values (mean ± SD [change in %]) increasedby 11.09 ± 4.86 (16.03%), 15.00 ± 4.53 (21.76%), 16.35 ± 5.14 (23.77%), 16.38 ± 4.88(23.85%), 16.67 ± 5.04 (24.29%), and 16.96 ± 5.71 (24.78%), respectively, from baselineto 5, 10, 15, 20, 25, and 30 min. ΔTs values were significantly higher in the successfullyblocked patients than in the complete failure patients and contralateral hand at the 30thmin. However, there was no statistically significant difference when comparing ΔTs values ofsuccessful block and partial failure block patients at the 30th min.Conclusions: We conclude that measurement of tissue oxygen saturation by NIRS withinthe scope of evaluation of the lateral infraclavicular block is a rapid, effective, and applicabletechnique.

2.
Pakistan Journal of Medical Sciences. 2016; 32 (4): 869-874
in English | IMEMR | ID: emr-182496

ABSTRACT

Objective: The McGrath Video laryngoscope is a newly developed video laryngoscope that significantly improves laryngeal view and facilitates endotracheal intubation in difficult airways. However in patients with normal airway that is not mentioned before. The aim of this study was to compare the McGrath video laryngoscope with the Macintosh laryngoscope in patients with normal airways


Methods: A total of 100 patients requiring orotracheal intubation, were randomized to either having intubation with the McGrath video laryngoscope or the Macintosh laryngoscope. The primary outcome was the laryngoscopy view using percentage of glottic opening [POGO] score. Secondary outcomes included Cormack and Lehane grading system, time to intubation, number of failed intubations, number of attempts before successful intubation and hemodynamic parameters during intubation


Results: POGO scores were significantly higher in the McGrath group compared with the Macintosh group [p<0.001] despite time to successful intubation was similar in both groups. The McGrath video laryngoscope provided more Grade-l laryngoscopic views than the Macintosh laryngoscope [p<0.001]. Number of more than one attempts in order to achieve success was significantly higher in the Macintosh group [p=0.001]


The number of minor complications were significantly higher in the Macintosh group [p=0.004].There were no significant changes in hemodynamic responses between the two groups [p>0.05]


Conclusion: McGrath video laryngoscope allows patients with normal airways to achieve higher POGO scores and significantly more Grade-l laryngoscopic views when compared with the Macintosh laryngoscope

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