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Revista mexicana de anestesiología

versión impresa ISSN 0484-7903


OROZCO-RAMIREZ, Sergio Manuel; CHAVEZ-MUNOZ, Carlos Adrián  y  ALVAREZ-CANALES, José Antonio de Jesús. King Vision vs Truview EVO in experienced residents in direct laryngoscopy (conventional). Rev. mex. anestesiol. [online]. 2019, vol.42, n.4, pp.275-280.  Epub 23-Ago-2021. ISSN 0484-7903.


Fundamental responsability of anesthesiologist is to secure and to maintain a secure airway. The complications that arise in the failure of intubation are cause of morbidity and mortality. The use of video laryngoscopes give us a better view of glottis, although it may increase the intubation time due to its shape. No studies have been found made in anesthesiology residents; most of the studies are carried out in experienced personnel in the use of video laryncoscopes.

Material and methods:

25 laryngoscopies were performed with each videolaryngoscope in patients over 18 years old, ASA I-III, without difficult airways predictors, under general anesthesia. The differences between hemodynamic variables (blood pressure, heart rate, oxygen saturation) as well as time and number of intubation attempts were determined.


We found statistical significance for the number of intubation attempts (p = 0.037) and for the intubation time (p = 0.011).


The better handling was in favor of the Truview EVO, we could observe a greater difficulty to introduce the endotracheal tube in King Vision. The results obtained in our study are comparable with those obtained in other studies perform in experienced personnel.

Palabras llave : Videolayringoscope; King Vision; Truview EVO; residents; indirect laryngoscopy.

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