Does body mass index predict tracheal airway size?
Laryngoscope
; 125(5): 1093-7, 2015 May.
Article
em En
| MEDLINE
| ID: mdl-25251641
ABSTRACT
OBJECTIVES/HYPOTHESIS:
To determine the relationship between body mass index along with other anthropomorphic variables as they relate to tracheal airway dimensions. STUDYDESIGN:
Retrospective case series.METHODS:
This was a radiographic study of 123 consecutive hospitalized patients undergoing tracheotomy over a 4-year period (2007-2011). We measured airway dimensions in axial computed tomography imaging and made comparisons with height, weight, body mass index, gender, and age. Measurements were taken at the first tracheal ring level including anterior-posterior length, width, and calculated area. We expected higher body mass index not to be a good predictor of larger airway dimensions.RESULTS:
The linear regression model showed body mass index was significantly inversely related to tracheal width after controlling for gender and age (P = .0389). For every 1 kg/m(2) increase in body mass index, the tracheal width decreased by 0.05 mm. There was a trend for airway area to diminish with increasing body mass index.CONCLUSIONS:
These results are consistent with the hypothesis that obese patients do not have larger airways. Our study indicated a trend toward smaller airways as body mass index increased. Specifically, as body mass index increases, tracheal width appears to decrease. This information should help medical professionals avoid the tendency to use a larger tube to secure the airway of an obese patient. Hopefully, this will result in further research into the field and may prevent future airway injuries in a society where obesity has become epidemic. LEVEL OF EVIDENCE 4 Laryngoscope, 1251093-1097, 2015.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Tamanho do Órgão
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Traqueia
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Tomografia Computadorizada por Raios X
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Índice de Massa Corporal
Tipo de estudo:
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article