[Balloon dilation of critical neonatal aortic stenosis: early and midterm results].
OBJECTIVE
We evaluated our immediate and midterm results of balloon dilation of critical valvular aortic stenosis in 15 consecutive neonates.


METHODS
Balloon dilatation was attempted in 15 neonates at a mean age of 14 days. Three patients (20%) had associated left heart hypoplasia.


RESULTS
Balloon dilation could be performed in 14 out of the 15 neonates (93.3%). The average immediate maximal gradient reduction was 80 +/- 26%. The immediate mortality rate was nil, but 7 deaths (46%) occurred afterwards all not related to the dilation. Moderate to severe aortic regurgitation was noted in 7/14 (50%) of the dilated neonates but none has necessitated reintervention. At a mean follow-up of 11.5 months, survival and freedom of reintervention rates were respectively 40% and 50%. At last follow-up, 87.5% of the survivors were asymptomatic.


CONCLUSIONS
This study confirms that dilation of aortic stenosis in neonates is effective, with encouraging immediate success but still disappointing short and midterm results.
Lteif
Julien
J
Service de Pédiatrie, Hôpital Tel-Chiha, Zahlé, Liban.
El-Rassi
Issam
I
Chéhab
Ghassan
G
Abdelmassih
Tony
T
Daou
Linda
L
Gerbaka
Bernard
B
Ashoush
Ramzi
R
Saliba
Zakhia
Z
D001024:Aortic Valve Stenosis / Q000401:mortality / Q000628:therapy*; D002404:Catheterization; D016638:Critical Illness; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D012086:Reoperation; D015996:Survival Rate; D016896:Treatment Outcome