Obesity is a risk factor for prolonged mechanical ventilation after tracheotomy

Area of Science:

• Medical Research
• Clinical Outcomes
• Patient Care

Background:

• Body Mass Index (BMI) is a critical factor in patient outcomes.
• Tracheotomy is a procedure that requires careful consideration of patient factors.
• Understanding the impact of BMI on tracheotomy patients is essential for optimizing care.

Purpose of the Study:

• To compare patient outcomes across different body mass index (BMI) subgroups following tracheotomy.
• To investigate the relationship between BMI and key clinical outcomes such as length of stay and mechanical ventilation duration.

Main Methods:

• Retrospective chart review of 391 adult patients who underwent tracheotomy.
• Patients categorized into five BMI groups: underweight, normal weight, overweight, obese, and morbidly obese.
• Statistical analyses included Kruskal-Wallis, Chi-square, log-rank tests, and Cox regression.

Main Results:

• Significant differences observed in length of stay (p=.015) and mechanical ventilation duration (p<.001) among BMI groups.
• Obese patients experienced longer hospital stays and ventilation durations compared to normal weight patients.
• Higher BMI correlated with increased likelihood of ventilator dependency at discharge (p<.001) and a decreased rate of tracheotomy change (adjusted HR 0.86).

Conclusions:

• Obese and morbidly obese patients undergoing tracheotomy face longer hospital stays and mechanical ventilation durations.
• Increased BMI is associated with a higher likelihood of ventilator dependency at discharge.
• Informed patient and family counseling regarding BMI's impact on tracheotomy outcomes is recommended.