Prevalencia de la vía aérea difícil y factores asociados en pacientes con predictores de vía aérea difícil mediante intubación con fibroscopio flexible o videolaringoscopio en los hospitales Vicente Corral Moscoso y José Carrasco Arteaga. Cuenca, 2017

Abstract

INTRODUCTION: The difficult airway is an important cause of morbidity and mortality in anesthesia, it can be approached by an adequate assessment of difficult airways predictors to estimate the risk and allow an intervention with adequate instruments like videolaryngoscope or flexible fibroscope. OBJECTIVE: To determine the prevalence of difficult airway and associated factors in patients with difficult airway predictions by intubation with a flexible fibroscope or videolaryngoscope. MATERIAL AND METHODS: this is an observational transversal, analytic study, in patients with difficult airway predictors who are submitted to general anesthesia, a probabilistic sample of 305 patients was studied, with the following restrictions: 95% confidence level, prevalence of difficult airway: 25%, margin of error 5%, with unknown population. For the hypothesis test RP, IC95% and p-value were used. RESULTS: The prevalence of difficult airway was 17.4%. Of the predictors studied, Mallampati III-IV, thyromenthian distance <6 cm, cervical mobility I-II presented more significance with difficult airway. Of the associated factors, the intubation time, number of tries and oxygen desaturation was major with the flexible fibroscope than videolaryngoscope, the most frequent complication was lacerations in the oral mucosa. CONCLUSIONS: The difficult airway prevalence was 17.4%, and in the associated factors the intubation time was 60 seconds, the number of tries was greater than 3 seconds, oxygen desaturation was less than 90% with the flexible fibroscope