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Pol. Merkur. Lek (Pol. Med. J.), 2019, XLVI/275: 205-208 Maximize

Pol. Merkur. Lek (Pol. Med. J.), 2019, XLVI/275: 205-208

Title: Comparison of intubation using duoscope double blade laryngoscope and standard Macintosh blade laryngoscope in manikin model 

Authors: Pondel J, Gaszyński T. 

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SUMMARY IN POLISH & ENGLISH. FULL ARTICLE ONLY IN POLISH.

Comparison of intubation using duoscope double blade laryngoscope and standard Macintosh blade laryngoscope in manikin model

Pondel J, Gaszyński T.

Katedra Anestezjologii i Intensywnej Terapii Uniwersytetu Medycznego w Łodzi Laryngoscope Duoscope (LD) is a disposable, plastic laryngoscope consisting of two different spoons connected by proximal parts, so that one alternately serves as a handle.
The aim of study
was to compare classical laryngoscope with the one-time Duoscope type.
Material and methods
. The study was carried out on 30 patients of the third year of Medical Emergency, previously trained in instrumental airway clearance. It consisted of intubation of the phantom using a standard metal laryngoscope (MR) and a disposable plastic laryngoscope with a double spoon – Duoscope Laryngoscope (LD). After the intubation, each student completed an anonymous questionnaire regarding the time and effectiveness of intubation and the visibility of vocal folds and the general assessment of both laryngoscopes.
Results
. The minimum time needed to perform intubation with MR is 16.02 s, and the maximum is 44.17 s, for LD analogically – 17.92 sec. 52.72 s. Mean MR intubation time was shorter than LD (26.43±6.22 s vs. 32.24±8.51 s, statistical significance level p <0.001). The average difference between the time of MR and LD intubation was 7.12 s. The second analyzed factor was the effectiveness of intubation; significantly higher with MR in relation to LD (90% vs. 43.3% efficiency, statistical significance level p<0.0001). The next analyzed factor was the visibility of vocal folds at laryngoscopy. It was after averaging for MR 84.3%, for LD 23%. The average LD score in the 10-point scale of the subjective assessment of the usability of the laryngoscope for intubation was 3.13 points (standard deviation 1.92, median 3 points).
Conclusion
. The results of the study strongly support the predominance of the classical laryngoscope over the one-time Duoscope type.

Key words: endotracheal intubation, Macintosh laryngoscope, Duoscope laryngoscope, emergency medical services

Pol Med J, 2019; XLVI (275); 205–208