Airtraq-AirView® vs. King Vision® video laryngoscope: A randomized comparative study to evaluate the intubation dynamics in adult patients for general anesthesia

Abstract

Background: Airtraq®-Airview (AA) and King Vision® (KV) video laryngoscopes are two new video laryngoscopes(VLS). Many studies have been carried out to compare the both regarding efficacy, ease of use etc., but the matter remains undecided.
We compared AA to KV(channeled) primarily for total intubation time and secondarily for success rate, number of attempts, optimization maneuvers, percentage of glottis opening (POGO) score, Cormack-Lehane (CL) score, degree of difficulty of intubation (Likert scale) and adverse effects.
Methodology: After obtaining institutional ethical committee approval and written informed consent from study subjects, this randomized control study was conducted in the Department of Anesthesiology & Critical Care, Mathura Das Mathur Hospital, Jodhpur from January 2019 to September 2019. Seventy ASA- I and II patients of age 20-60 y, weighing 40-70 kg, irrespective of their Mallampati class, posted for elective surgery under general anesthesia, were included in the study. Patients were randomly divided into two groups, Group AA (n = 35) intubated using AA and Group KC (n = 35) intubated using KV (channeled). Pregnant patients, patients with mouth opening less than 18 mm and any oral pathology, neck deformities and refusal to consent were excluded. Statistical analyses were performed using SPSS 22.0 software package (SPSS Inc., Chicago, IL, USA). Chi square test, Fisher’s exact test and Fisher-FreemanHalton test were used. All data were summarized as mean ± SD for continuous variables, numbers and percentages for categorical variables. P < 0.05 was accepted as significant.
Results: Total intubation time was significantly longer in group AA. Demographic and hemodynamic data of patients and intubation attempts, CL score, POGO score, degree of difficult intubation on Likert scale and adverse effects such as airway trauma in both the groups were comparable.
Conclusions: Although both video laryngoscopes are similar in intubating conditions, intubation with King’s Vision®
video laryngoscope was faster; hence might be preferable for intubation.
Key words: Airway management; glottis; Humans; Intubation, Intratracheal / instrumentation; Intubation,
Intratracheal / methods; Laryngoscopy / instrumentation; Laryngoscopy / methods; Trachea; Video laryngoscopy
Citation: Gupta M, Soni S, haudhary D, Khatri C, Karnawat R. Airtraq-AirView® vs King Vision® video laryngoscope: A randomized comparative study to evaluate the intubation dynamics in adult patients for general anesthesia. Anaesth. pain intensive care 2022;26(4):433-438; DOI: 10.35975/apic.v26i4.1944
Received: March 14, 2022; Reviewed: April 13, 2022; Accepted: July 10, 2022