web analytics

Description

Chen et al reported the Flu-IV score for predicting invasive mechanical ventilation for a patient with influenza pneumonia. The authors are from Nanjing Lishui People's Hospital, Beijing Jishuitan Hospital, 4th Medical College of Peking University, and multiple affiliated hospitals.


Flu-IV = influenza invasive ventilation

 

Parameters:

(1) early neuraminidase inhibitor (NAI) therapy

(2) multilobar infiltrate

(3) absolute lymphocyte count in 10^9/L

(4) use of systemic corticosteroids

(5) age in years

(6) PaO2 to FIO2 ratio

(7) respiratory rate in breaths per minute

(8) arterial pH

 

Parameter

Finding

Points

early NAI therapy

no

0

 

yes

-3

multilobar infiltrate

no

0

 

yes

1

absolute lymphocyte count

>= 0.8 * 10^9/L

0

 

< 0.8 * 10^9/L

1

systemic corticosteroids

no

0

 

yes

1

age in years

< 65 years

0

 

>= 65 years

1

PaO2 to FIO2 ratio

>= 300

0

 

< 300

2

respiratory rate

<= 30 breaths per minute

0

 

> 30 breaths per minute

3

arterial pH

>= 7.35

0

 

< 7.35

4

 

total score =

= SUM(points for all of the parameters)

 

Interpretation:

• minimum score: -3

• maximum score: 13

• A score >= 5 was associated with invasive mechanical ventilation.

 

Performance:

• The area under the ROC curve is 0.91.


To read more or access our algorithms and calculators, please log in or register.