Abstract
ObjectiveTracheostomy is one of the oldest operations for the management of airway obstruction. With time, indications expanded to prolonged mechanical ventilation, and currently, the majority of tracheostomies are done for this reason. There are several techniques used in a tracheostomy procedure, depending on surgeon preference. Immediate complications such as bleeding, pneumothorax, pneumomediastinum, airway fire, and posterior tracheal wall perforation with esophageal injury are rare, although they do occur, and must be managed accordingly. This study aimed to assess differences in types and rates of immediate postoperative complications in patients undergoing tracheostomy when performed under general anesthesia and local anesthesia (awake tracheostomies) at a large academic institution. This is a continuing ongoing literature reporting tracheostomy adverse events.MethodsA retrospective chart review was performed to identify patients who underwent tracheostomy placement between January 1, 2013 and December 31, 2019 at the Detroit Medical Center, USA. Postoperative complications such as bleeding, pneumothorax, pneumomediastinum, airway fire, and posterior tracheal perforation were collected along with gender, age, and revision tracheostomy status. IBM SPSS Statistics (IBM Inc., Armonk, USA) was used for statistical analysis with the statical significance defined as a p<0.05.ResultsA total of 1,469 patient charts were reviewed. Of these, 1,342 met the inclusion and exclusion criteria, of which, males were 57.2% (n=768), and females were 42.8% (n=574). The age range was 18 years to 96 years (mean=58.03; SD= 15.97), and BMI range was 12-83 (mean=28.77; SD=7.885).Multinomial logistic regression was performed to determine whether age, BMI, sex, and revision tracheostomies were represented across both general and awake tracheostomy groups proportionally to their numbers in the total sample. It showed non-significant value for age (χ2=0.776, p=0.378), BMI (χ2=0.004, p=0.947), but significant value for sex (χ2=4.645, p=0.031), revision tracheostomy (χ2=18.282, p<0.001), indicating that males and revision tracheostomies over-represented in awake tracheostomies.Next, Pearson correlation analysis was performed to determine any significant linear relationship between age, sex, and tracheostomy complications. It showed a significant positive correlation between age and tracheal stomal infection [r(1,340)=0.062, p=0.022].An independent sample t-test showed a statistically significant difference between the mean pneumothorax and pneumomediastinum of general (n=1,277, mean=0.01, SD=0.088) and awake tracheostomies (n=65, mean=0.08, SD=0.269, t=2.069, p=0.043).Pneumothorax pneumomediastinum complications between the general tracheostomy and awake tracheostomy odds ratio (OR)-6.22, indicates the chance of pneumothorax /pneumomediastinum complication is 6.22 times more in awake tracheostomy than general tracheostomy. Based on the above statistical analysis, we rejected the null hypothesis.ConclusionsTracheostomy is the procedure of choice to relieve the upper airway obstruction and treat patients requiring prolonged mechanical ventilation. A slightly higher number of Immediate postoperative complications in awake tracheostomy were noticed in patients with more surgically challenging revision tracheostomies.
Highlights
Tracheostomy is one of the oldest operations for the management of airway obstruction
Multinomial logistic regression was performed to determine whether age, BMI, sex, and revision tracheostomies were represented across both general and awake tracheostomy groups proportionally to their numbers in the total sample
Tracheostomy is the procedure of choice to relieve the upper airway obstruction and treat patients requiring prolonged mechanical ventilation
Summary
Tracheostomy is one of the oldest operations for the management of airway obstruction. Depictions of tracheostomy are visible on Egyptian tablets from 3600 BCE [1]. Tracheostomy surgery was widely used during the polio epidemic to relieve upper airway obstruction after introducing a safer standardized technique, introduced by Chevalier Jackson in the 20th century [2]. The American College of Chest Physicians recommends considering a tracheostomy for patients who require an endotracheal tube for more than 21 days [3]. Benefits of establishing a tracheostomy rather than using an endotracheal tube include decreasing direct laryngeal injury, improving comfort, and improving daily living activities such as mobility, speech, eating, and lower intensive care unit (ICU) and in-hospital length of stays [4,5,6]
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