BET 1: Everything in graduation: arterial/end-tidal CO2 gradient and the diagnosis of pulmonary embolism

2021 ◽  
Vol 38 (7) ◽  
pp. 361-363
Author(s):  
John O'Rourke ◽  
Bethany MacDonald
Keyword(s):  
Pulmonary Embolism ◽  
Good Evidence ◽  
Clinical Prediction ◽  
Alveolar Dead Space ◽  
Author Study ◽  
Clinical Prediction Model ◽  
Diagnostic Characteristics ◽  
End Tidal ◽  
Study Type ◽  
End Tidal Co2

A short cut review was carried out to establish the diagnostic characteristics of alveolar dead space fraction (AVDSf) in the diagnosis of pulmonary embolism (PE). This is calculated from the arterial and end-tidal CO2. Three papers were selected to answer the clinical question. The author, study type, relevant outcomes, results and weaknesses are tabulated. It is concluded that there is good evidence to support the use of AVDSf within a clinical prediction model to exclude a PE in patients when there is a low pretest probability. However, the specificity is not sufficient to support it as a ‘rule in’ test.

EVALUATION OF THE USEFULNESS OF BEDSIDE MEASUREMENT OF END-TIDAL CO2 FOR DIAGNOSING PULMONARY EMBOLISM

2002 ◽  
Vol 30 (Supplement) ◽  
pp. A90
Author(s):  
Warren D Widmann ◽  
Benjamin Fleischer ◽  
Kara B Chenitz ◽  
Rula Geha ◽  
Steven Aranoff ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
End Tidal ◽  
End Tidal Co2

A new niche for end-tidal CO2 in pulmonary embolism

2000 ◽  
Vol 28 (11) ◽  
pp. 3752-3754 ◽  
Author(s):  
Stephen D. Surgenor John G. Weg
Keyword(s):  
Pulmonary Embolism ◽  
End Tidal ◽  
End Tidal Co2

scholarly journals Bedside end-tidal CO2 tension as a screening tool to exclude pulmonary embolism

2009 ◽  
Vol 35 (4) ◽  
pp. 735-741 ◽  
Author(s):  
A. R. Hemnes ◽  
A. L. Newman ◽  
B. Rosenbaum ◽  
T. W. Barrett ◽  
C. Zhou ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Screening Tool ◽  
End Tidal ◽  
End Tidal Co2
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