Transient neonatal hyperammonemia: Squeezing an iceberg into a pigeon hole
Yugen Edward Hsia – 1 November 1986 – Transient neonatal hyperammonemia (TNH) was reviewed in six cases seen by the authors and in 27 selected from the literature. These 33 cases were compared with 13 infants with urea cycle enzyme deficiencies (UCED). The two groups were similar in sex distribution, routes of delivery, time of onset of seizures, Apgar scores and in the prevalence of perinatal complications. Patients with TNH had significantly lower birth weights (2,282±78 gm vs. 3,336±222; mean±SEM; P < 0.001) and gestational ages (35±0.5 vs. 40±0.5 weeks; p e 0.001).