Dimensional variations of left-sided double-lumen endobronchial tubes: an observational study

2019 ◽  
Author(s):  
Niels Hegland ◽  
Sebastian Schnitzler ◽  
Jan Ellensohn ◽  
Marc P Steurer ◽  
Markus Weiss ◽  
...  
Keyword(s):  
Observational Study ◽  
Airway Management ◽  
Double Lumen ◽  
Tube Size ◽  
Size Selection ◽  
Dimensional Parameters

Abstract Background: Tube size selection is critical in ventilating patient`s lungs using double-lumen endobronchial tubes. Little information about relevant parameters is readily available from manufacturers. Methods: In this observational study in a benchmark in-vitro setup, several dimensional parameters of four sizes of left-sided double-lumen endobronchial tubes from six different manufacturers were assessed, such as distances and diameters of tube shaft, cuff lengths and diameters as well the angle at the tip. Results: Endobronchial tubes of ostensibly the same size revealed wide variation in measured parameters between brands from different manufacturers. In some parameters, there was an overlap between different sizes from the same manufacturer, i.e. diameters and distances did not increase with increasing nominal endobronchial tube size. The information about dimensions of endobronchial tubes provided by manufacturers’ leaflets is insufficient. Conclusions: Endobronchial tube size selection is complicated because clinically relevant parameters are unknown and vary considerably between different manufacturers. Keywords: Airway management, double-lumen endobronchial tubes

scholarly journals Dimensional variations of left-sided double-lumen endobronchial tubes

2019 ◽  
Author(s):  
Niels Hegland ◽  
Sebastian Schnitzler ◽  
Jan Ellensohn ◽  
Marc P Steurer ◽  
Markus Weiss ◽  
...  
Keyword(s):  
Reference Data ◽  
Double Lumen ◽  
Tube Size ◽  
Size Selection ◽  
Dimensional Parameters

Abstract Background Tube size selection is critical in ventilating patients` lungs using double-lumen endobronchial tubes (DLTs). Little information about relevant parameters is readily available from manufacturers. The aim of this study is to provide reference data for relevant dimensions of conventionally available DLTs. Methods In this study in a benchmark in-vitro setup, several dimensional parameters of four sizes of left-sided double-lumen endobronchial tubes from six different manufacturers were assessed, such as distances and diameters of tube shaft, cuff lengths and diameters as well the angle at the tip. Results Endobronchial tubes of ostensibly the same size revealed wide variation in measured parameters between brands from different manufacturers. In some parameters, there was an overlap between different sizes from the same manufacturer, i.e. diameters and distances did not increase with increasing nominal endobronchial tube size. The information about dimensions of endobronchial tubes provided by manufacturers’ leaflets is insufficient. Conclusions Endobronchial tube size selection carries unnecessary uncertainty because clinically relevant parameters are unknown and vary considerably between different manufacturers.

scholarly journals Dimensional Variations of Left-Sided Double-Lumen Endobronchial Tubes

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Niels Hegland ◽  
Sebastian Schnitzler ◽  
Jan Ellensohn ◽  
Marc P. Steurer ◽  
Markus Weiss ◽  
...  
Keyword(s):  
Reference Data ◽  
Double Lumen ◽  
Tube Size ◽  
Size Selection ◽  
Dimensional Parameters

Background. Tube size selection is critical in ventilating patients’ lungs using double-lumen endobronchial tubes (DLTs). Little information about relevant parameters is readily available from manufacturers. The aim of this study is to provide reference data for relevant dimensions of conventionally available DLTs. Methods. In this study in a benchmark in vitro setup, several dimensional parameters of four sizes of left-sided double-lumen endobronchial tubes from six different manufacturers were assessed, such as distances and diameters of tube shaft, cuff lengths, and diameters as well the angle at the tip. Results. Endobronchial tubes of ostensibly the same size revealed wide variation in measured parameters between brands from different manufacturers. In some parameters, there was an overlap between different sizes from the same manufacturer, i.e., diameters and distances did not increase with increasing nominal endobronchial tube size. The information about dimensions of endobronchial tubes provided by manufacturers’ leaflets is insufficient. Conclusions. Endobronchial tube size selection carries unnecessary uncertainty because clinically relevant parameters are unknown and vary considerably between different manufacturers.

How clinical experience leads anesthetists in the choice of double-lumen tube size

2016 ◽  
Vol 32 ◽  
pp. 1-3 ◽  
Author(s):  
Gianluca Zani ◽  
Maitan Stefano ◽  
Bizzarri Federico Tommaso ◽  
Rispoli Marco ◽  
Buono Salvatore ◽  
...  
Keyword(s):  
Clinical Experience ◽  
Double Lumen Tube ◽  
Double Lumen ◽  
Tube Size ◽  
Lumen Tube

scholarly journals Anaesthesia Trainees’ Exposure to Airway Management in an Australian Tertiary Adult Teaching Hospital

2008 ◽  
Vol 36 (4) ◽  
pp. 513-515
Author(s):  
R. C. Clarke ◽  
A. I. Gardner
Keyword(s):  
Airway Management ◽  
Teaching Hospital ◽  
Full Time ◽  
Laryngoscopic View ◽  
Double Lumen ◽  
Management Techniques ◽  
Grade 3

The purpose of this study was to estimate the exposure of trainees to airway management techniques in an Australian tertiary adult teaching hospital. Anaesthesia records for all patients over a 20-week period were reviewed and the following data were obtained: the presence of a trainee, the type of airway used, the grade of the laryngoscopic view and the use of non-standard laryngoscopy for intubation. Data was recorded contemporaneously and analysed retrospectively. The data was then extrapolated to give a yearly estimate of airway procedures per trainee. There were 28 full-time trainees in the department over the study period. The estimated mean number of standard intubations performed per trainee per year was 157.4, with 2.9% being grade 3 or 4 laryngoscopies. The estimated mean annual numbers for other airway techniques were: 1.2 fibreoptic intubations, 0.5 mask-only anaesthetics and 3.7 endobronchial double-lumen tubes. Our results suggest that trainees’ exposure to airway management techniques is not extensive. As there is no previous study to determine experience gained by trainees, we are unable to establish whether there has been a decrease in experience, however we believe this is likely. Although competency is difficult to assess, it may be that this data has implications for training, unsupervised practice and rostering. Experience in certain airway skills may need to be supplemented using techniques such as simulation.

380 Emergency Airway Management in Japan: Interim Analysis of a Multi-Center Prospective Observational Study

2011 ◽  
Vol 58 (4) ◽  
pp. S306
Author(s):  
K. Hasegawa ◽  
Y. Hagiwara ◽  
T. Chiba ◽  
H. Watase ◽  
C.A. Brown ◽  
...  
Keyword(s):  
Observational Study ◽  
Airway Management ◽  
Interim Analysis ◽  
Prospective Observational Study ◽  
Emergency Airway Management ◽  
Emergency Airway

Bronchial Cuff Sealing Volume of Left - sided Double - lumen Endobronchial Tube according to Bronchus Diameter and Tube Size in Man

1995 ◽  
Vol 28 (2) ◽  
pp. 210
Author(s):  
Young Cheol Woo ◽  
Hun Cho ◽  
Hae Ja Lim ◽  
Nan Suk Kim ◽  
Seong Ho Chang
Keyword(s):  
Double Lumen ◽  
Tube Size ◽  
Bronchial Cuff ◽  
Double Lumen Endobronchial Tube
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