Predictors of the need for extracorporeal membrane oxygenation and survival in congenital diaphragmatic hernia: a center's 10-year experience.
OBJECTIVE
To determine the prenatal factors associated with the need for extracorporeal membrane oxygenation (ECMO) and neonatal survival in congenital diaphragmatic hernia (CDH).


METHODS
A retrospective cohort study of all cases of CDH seen in our center between 1998 and 2008. Prenatal ultrasound and neonatal records were reviewed. Both univariable and logistic regression analyses were performed to determine the significant factors associated with the use of ECMO and survival.


RESULTS
Among 107 cases of CDH seen during the study period, 62 were evaluated prenatally in our center and 49 had information on all variables evaluated. The overall rate of ECMO use was 27/107 (25%) and survival rate was 53/107 (49.5%). The lung area to head circumference ratio (LHR) and gestational age (GA) at delivery were the only significant factors associated with ECMO use, and the LHR and absence of liver herniation were significantly associated with survival. LHR values under 1.0 were associated with 57% need for ECMO and 100% neonatal death. Although, overall, the observed:expected LHR (O:E LHR) was not significantly associated with ECMO use or survival, levels below 65% were associated with 58% need for ECMO (p = 0.004) and 100% neonatal death (p = 0.002).


CONCLUSIONS
The study confirms the LHR, GA at delivery and liver herniation as significant prenatal predictors of the need for ECMO or survival in cases with CDH. This information is helpful for counseling women with fetuses complicated by CDH.
Odibo
Anthony O
AO
Fetal Care Center, Division of Maternal Fetal Medicine and Ultrasound, Washington University Medical Center, St Louis, MO 63110, USA. odiboa@wudosis.wustl.edu
Najaf
Tasnim
T
Vachharajani
Akshaya
A
Warner
Barbara
B
Mathur
Amit
A
Warner
Brad W
BW
D002508:Cephalometry; D015331:Cohort Studies; D015199:Extracorporeal Membrane Oxygenation / Q000706:statistics & numerical data; D005260:Female; D005865:Gestational Age; D006301:Health Services Needs and Demand / Q000706:statistics & numerical data; D006548:Hernia, Diaphragmatic / Q000175:diagnosis* / Q000401:mortality* / Q000628:therapy*; D065630:Hernias, Diaphragmatic, Congenital; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011296:Prenatal Diagnosis; D011379:Prognosis; D012372:ROC Curve; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D015996:Survival Rate