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A retrospective analysis of associations between BMI and days spent on mechanical ventilation in a level 1 trauma
Kyle J Brandenberger1, Rachel Culbreth1, Samuel Shan1
1Department of Respiratory Therapy, Georgia State University, 140 Decatur Street P.O. Box 4019, Atlanta, GA 30302-4019, USA.
Insights
Underweight and morbidly obese patients on mechanical ventilation had longer intensive care unit stays. These findings suggest tailored interventions may be needed for these BMI groups.
Area of Science:
- Critical Care Medicine
- Trauma Surgery
- Public Health & Epidemiology
Background:
- Body Mass Index (BMI) is a key indicator of body fatness.
- Understanding BMI's impact on patient outcomes is crucial for effective treatment strategies.
- Mechanically ventilated patients represent a vulnerable population in intensive care.
Purpose of the Study:
- To investigate the association between Body Mass Index (BMI) and outcomes in mechanically ventilated patients.
- To determine if different BMI categories correlate with varying lengths of mechanical ventilation.
- To identify potential disparities in intensive care unit (ICU) stay based on BMI.
Main Methods:
- Retrospective data analysis of 2,802 trauma patients admitted to an intensive care unit.
- Patients were classified into five BMI groups: underweight, normal weight, overweight, obese, and morbidly obese.
- Ventilator days were compared across the different BMI categories.
Main Results:
- The study included 2,802 patients: 3% underweight, 34% normal weight, 30% overweight, 27% obese, and 6% morbidly obese.
- Normal weight patients averaged 4.6 ventilator days.
- Underweight and morbidly obese patients experienced significantly longer mechanical ventilation durations (10.3 and 7.4 days, respectively).
Conclusions:
- Underweight and morbidly obese patients may require specialized interventions during ICU stays.
- Unhealthy BMI categories are associated with prolonged mechanical ventilation.
- Further research into BMI-specific care protocols in critical care settings is warranted.
Objective:
To examine whether BMI impacts the outcomes of mechanically ventilated patients.
Methods:
Data was collected retrospectively among patients involved in motor vehicle accidents in intensive care at a major trauma center in Atlanta, GA. Patients were categorized into five BMI groups: underweight (BMI < 18.5), normal weight (BMI of 18.5-24.9), overweight (BMI of 25-29.9), obese (BMI of 30-39.9), and morbidly obese (BMI of >40).
Results:
Among all patients (n=2,802), 3% of patients were underweight, 34% were of normal weight, 30% were overweight, 27% were obese, and 6% were morbidly obese. The mean number of ventilator days for normal weight patients was 4.6, whereas the mean number of ventilator days for underweight and morbidly obese patients were higher (10.3 and 7.4, respectively).
Conclusions:
Underweight and morbidly obese populations may require additional interventions during their ICU stays to address the challenges presented by having an unhealthy BMI.
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