Score of Saito et al for Predicting Failed Facemask Ventilation

Description

Saito et al reported a simple score for identifying a patient who may fail facemask ventilation. The patient may also experience difficulties with intubation and ventilation via a supraglottic airway. The authors are from multiple institutions in Japan and Singapore.

Patient selection: preoperative

Parameters:

(1) sex

(2) age of the patient in years

(3) neck movement

(4) thyromental distance in cm

Parameter	Finding	Points
sex	female	0
	male	1
age	<= 45 years	0
	> 45 years	1
neck movements	unlimited	0
	limited	2
thyromental distance	>= 5.5 cm	0
	< 5.5 cm	3

total score =

= SUM(points for all of the parameters)

Interpretation:

• minimum score: 0

• maximum score: 7

Total Score	Risk Group
0 to 3	low
4 to 7	high

A patient at high risk may experience difficulties in:

(1) intubation

(2) facemask ventilation

(3) ventilation via a supraglottic airway

Performance:

• The area under the ROC curve was 0.71 for difficult facemask ventilation.

• The area under the ROC curve was 0.81 for difficult intubation and supraglottic airway ventilation.

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Score of Saito et al for Predicting Failed Facemask Ventilation

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