Harvard
Athanassoglou, V, Hughes-Jones, H, Hadjipavlou, G, Teoh, WH
, Kristensen, MS & Vanner, R 2019, '
Depth to the airway lumen at the level of the cricothyroid membrane measured by ultrasound'
Acta Anaesthesiologica Scandinavica.
https://doi.org/10.1111/aas.13464
APA
Athanassoglou, V., Hughes-Jones, H., Hadjipavlou, G., Teoh, W. H.
, Kristensen, M. S., & Vanner, R. (2019).
Depth to the airway lumen at the level of the cricothyroid membrane measured by ultrasound.
Acta Anaesthesiologica Scandinavica.
https://doi.org/10.1111/aas.13464
CBE
MLA
Vancouver
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Bibtex
@article{836a1274c64d4f0da15e6574cd5ddf0e,
title = "Depth to the airway lumen at the level of the cricothyroid membrane measured by ultrasound",
abstract = "BACKGROUND: Knowing the likely depth to the airway before emergency cricothyroidotomy may improve success in cases where it cannot be measured. Our aim was to measure the depth to the airway at the cricothyroid membrane by ultrasound in a large group of adult patients.METHOD: Prospective, observational study in two centres, Oxford and Gloucester. Patients presenting for a large variety of surgical operations were studied. Patients under 18 years old; pregnant; critically ill; had a history of neck surgery not included. Ultrasound examination was performed pre-operatively while participants lay supine with their head and neck extended, with light transducer pressure. We measured depth to the airway lumen in mm; age; weight; height and sex.RESULTS: In total 352 patients were studied. We found that depth to the airway lumen strongly correlated with weight (r=0.855, p<0.001) and to a lesser extent body mass index (r=0.781, p<0.001) but did not correlate to sex. Statistical analysis produced an equation to predict upper 95{\%} CI of depth to the airway from the patient's weight: Depth to the airway lumen in mm = (0.13 x weight in kg) + 0.86.CONCLUSIONS: If ultrasound measurement is not possible before emergency cricothyroidotomy, the clinician could use our results to predict the depth to the airway by using the patient's weight. If the upper 95{\%} CI were used as the depth of incision, it would enter the airway in 39 out of 40 patients of that weight, without damage to posterior structures in those with a shallower airway. This article is protected by copyright. All rights reserved.",
author = "Vassilis Athanassoglou and Hannah Hughes-Jones and George Hadjipavlou and Teoh, {Wendy Hl} and Kristensen, {Michael S} and Richard Vanner",
note = "This article is protected by copyright. All rights reserved.",
year = "2019",
month = "8",
day = "22",
doi = "10.1111/aas.13464",
language = "English",
journal = "Acta Anaesthesiologica Scandinavica",
issn = "0001-5172",
publisher = "Wiley-Blackwell Munksgaard",
}
RIS
TY - JOUR
T1 - Depth to the airway lumen at the level of the cricothyroid membrane measured by ultrasound
AU - Athanassoglou, Vassilis
AU - Hughes-Jones, Hannah
AU - Hadjipavlou, George
AU - Teoh, Wendy Hl
AU - Kristensen, Michael S
AU - Vanner, Richard
N1 - This article is protected by copyright. All rights reserved.
PY - 2019/8/22
Y1 - 2019/8/22
N2 - BACKGROUND: Knowing the likely depth to the airway before emergency cricothyroidotomy may improve success in cases where it cannot be measured. Our aim was to measure the depth to the airway at the cricothyroid membrane by ultrasound in a large group of adult patients.METHOD: Prospective, observational study in two centres, Oxford and Gloucester. Patients presenting for a large variety of surgical operations were studied. Patients under 18 years old; pregnant; critically ill; had a history of neck surgery not included. Ultrasound examination was performed pre-operatively while participants lay supine with their head and neck extended, with light transducer pressure. We measured depth to the airway lumen in mm; age; weight; height and sex.RESULTS: In total 352 patients were studied. We found that depth to the airway lumen strongly correlated with weight (r=0.855, p<0.001) and to a lesser extent body mass index (r=0.781, p<0.001) but did not correlate to sex. Statistical analysis produced an equation to predict upper 95% CI of depth to the airway from the patient's weight: Depth to the airway lumen in mm = (0.13 x weight in kg) + 0.86.CONCLUSIONS: If ultrasound measurement is not possible before emergency cricothyroidotomy, the clinician could use our results to predict the depth to the airway by using the patient's weight. If the upper 95% CI were used as the depth of incision, it would enter the airway in 39 out of 40 patients of that weight, without damage to posterior structures in those with a shallower airway. This article is protected by copyright. All rights reserved.
AB - BACKGROUND: Knowing the likely depth to the airway before emergency cricothyroidotomy may improve success in cases where it cannot be measured. Our aim was to measure the depth to the airway at the cricothyroid membrane by ultrasound in a large group of adult patients.METHOD: Prospective, observational study in two centres, Oxford and Gloucester. Patients presenting for a large variety of surgical operations were studied. Patients under 18 years old; pregnant; critically ill; had a history of neck surgery not included. Ultrasound examination was performed pre-operatively while participants lay supine with their head and neck extended, with light transducer pressure. We measured depth to the airway lumen in mm; age; weight; height and sex.RESULTS: In total 352 patients were studied. We found that depth to the airway lumen strongly correlated with weight (r=0.855, p<0.001) and to a lesser extent body mass index (r=0.781, p<0.001) but did not correlate to sex. Statistical analysis produced an equation to predict upper 95% CI of depth to the airway from the patient's weight: Depth to the airway lumen in mm = (0.13 x weight in kg) + 0.86.CONCLUSIONS: If ultrasound measurement is not possible before emergency cricothyroidotomy, the clinician could use our results to predict the depth to the airway by using the patient's weight. If the upper 95% CI were used as the depth of incision, it would enter the airway in 39 out of 40 patients of that weight, without damage to posterior structures in those with a shallower airway. This article is protected by copyright. All rights reserved.
U2 - 10.1111/aas.13464
DO - 10.1111/aas.13464
M3 - Journal article
JO - Acta Anaesthesiologica Scandinavica
JF - Acta Anaesthesiologica Scandinavica
SN - 0001-5172
ER -