PEDIATRICS Vol. 107 No. 6 June 2001, pp. 1277-1282
Impact of Prenatal Diagnosis on Survival and Early Neurologic Morbidity in Neonates With the Hypoplastic Left Heart Syndrome
Received Jun 1, 2000; accepted Sep 27, 2000.
, §,
,
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From the Divisions of * Cardiology and Background. Prenatal echocardiography
can identify the fetus that has complex congenital heart disease and
may improve early management and surgical outcome. Prenatal diagnosis
may be particularly beneficial to patients who have hypoplastic left
heart syndrome (HLHS) and who are at risk for hypoxic-ischemic insult
at presentation.
Objectives. We sought to determine whether prenatal
diagnosis reduces neurologic morbidity and operative mortality in
patients who undergo palliative surgery for the HLHS.
Methods. Data from all patients who had HLHS, except for
those with lethal genetic anomalies, and who were admitted to our
institution between July 1992 and September 1997 were analyzed to
assess the impact of prenatal diagnosis on preoperative management,
neurologic morbidity, and surgical mortality. The primary outcome
measures were hospital mortality and the incidence of adverse
neurologic events (seizure or coma).
Results. There were 216 patients who had HLHS and were
referred for surgical palliation, 79 (36.6%) of whom had been
diagnosed prenatally. All patients who had been diagnosed prenatally
were delivered in an advanced nursery and were started on prostaglandin
E1 on the first day of life. Patients whose HLHS was
diagnosed postnatally were begun on prostaglandin
E1 later in life (median = day 2 [range = 1-28 days]). There were 4 preoperative deaths and 53 operative or postoperative deaths. Overall hospital mortality was
26.4% and did not differ between patients whose HLHS had been
diagnosed prenatally and those whose HLHS had been diagnosed
postnatally. With the use of multivariable analysis, prenatal diagnosis
was associated with fewer adverse perioperative neurologic events in
the patients whose HLHS had been diagnosed prenatally than in those
whose HLHS had been diagnosed postnatally (odds ratio = 0.46).
Conclusions. These data suggest that prenatal diagnosis
has a favorable impact on treatment of patients who have HLHS and are
undergoing staged palliation and reduces early neurologic morbidity.
Prenatal diagnosis was not associated with reduced hospital mortality. It is possible that prenatal diagnosis may improve long-term neurologic outcome.
Neurology at the
Children's Hospital of Philadelphia and the Departments of
§ Pediatrics and
Neurology at the University of Pennsylvania School
of Medicine, Philadelphia, Pennsylvania; and ¶ DataMedix Corporation,
Media, Pennsylvania.
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