Many children with trisomy 18 have apneas from the neonatal period. It has been reported that some children with trisomy 18 have epilepsy, including epileptic apneas. However, no previous report has described epileptic apneas in trisomy 18 neonates. We retrospectively reviewed the clinical records of neonates with trisomy 18 who were born at Anjo Kosei Hospital between July 2004 and October 2013 and investigated whether they had epileptic apneas during the neonatal period and whether antiepileptic drugs (AEDs) were effective for treating them. We identified 16 patients with trisomy 18. Nine patients who died within 3 days of birth were excluded. Five of the remaining seven patients had apneas. All five patients underwent electroencephalograms (EEGs) to assess whether they suffered epileptic apneas. Three of the five patients had EEG-confirmed seizures. In two patients, the apneas corresponded to ictal discharges. In one patient, ictal discharges were recorded when she was under mechanical ventilation, but no ictal discharges that corresponded to apneas were recorded after she was extubated. AEDs were effective for treating the apneas and stabilizing the SpO2 in all three patients. Among neonates with trisomy 18 who lived longer than 3 days, three of seven patients had EEG-confirmed seizures. AEDs were useful for treating their epileptic apneas and stabilizing their SpO2. Physicians should keep epileptic apneas in mind when treating apneas in neonates with trisomy 18.
Background Bilateral congenital diaphragmatic hernia (CDH) is very rare. A few studies have reported the pathogenic role of 5p in CDH. Case presentation A 23-year-old primigravida Japanese woman was referred for the following abnormal findings at 33 weeks of gestation: polyhydramnios, macroglossia, talipes equinovarus, and levocardia. A marker chromosome was detected by amniocentesis. Fluorescence in situ hybridization with whole chromosome paint 5 and nucleolus organizer region probes confirmed its origin from chromosome 5 and an acrocentric chromosome. The karyotype of the fetus was diagnosed as 47, XY, +mar. ish +mar(WCP5+). At 39 + 5 weeks, a 2462 g male infant was delivered, with a specific facial configuration. Bilateral CDH, hypoplasia of the corpus callosum, atrial septal defect, and hypothyroidism were also detected in the baby. The karyotype of the peripheral blood was consistent with that of the amniocentesis. Conclusion Genes coded on 5p might be associated with the pathogenesis of CDH; however, further investigation is required.
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