Description

Seetharamaiah et al developed models for predicting survival for infants with congenital diaphragmatic hernia who required extracorporeal membrane oxygenation (ECMO). One of these models is based on presurgical variables. The authors are from the University of Michigan and Mott Children's Hospital in Ann Arbor.


 

Parameters:

(1) birth weight in kilograms

(2) gestational age at birth in weeks

(3) 5 minute Apgar score

(4) cormorbid cardiac anomaly

(5) time of diagnosis

 

Parameter

Finding

Points

birth weight

>= 3 kg

0

 

< 3 kg

0.39

gestational age

>= 38 weeks

0

 

< 38 weeks

0.43

5 minute Apgar score

>= 7

0

 

< 7

0.73

cardiac anomaly

none, mild or moderate

0

 

severe

0.77

time of diagnosis

postnatal

0

 

prenatal

0.50

 

X =

= 1.01 - SUM(points for the 5 parameters)

 

probability of survival =

= 1 / (1 + EXP((-1) * X))

 


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