Subject(s)
Cerebellar Diseases/diagnostic imaging , Chromosome Disorders/diagnostic imaging , Cleft Palate/diagnostic imaging , Hearing Loss, Central/diagnostic imaging , Heart Defects, Congenital/diagnostic imaging , Intellectual Disability/diagnostic imaging , Magnetic Resonance Imaging , Muscle Hypotonia/diagnostic imaging , Ultrasonography, Prenatal , Adult , Cerebellar Diseases/embryology , Chromosome Disorders/embryology , Cleft Palate/embryology , Female , Hearing Loss, Central/embryology , Heart Defects, Congenital/embryology , Humans , Intellectual Disability/embryology , Medical Illustration , Muscle Hypotonia/embryology , Phenotype , Pregnancy , SyndromeABSTRACT
Neonatal seizures are frequent in neonatal intensive care and the most common cause is perinatal asphyxia. Among other causes, toxin exposure is rare.We present a boy with an uneventful vaginal birth, who presented one hour after birth with apnea, hypotonia, mydriasis, tongue fasciculation, and tonic seizures. There was no hypoxic ischemic encephalopathy and brain imaging was normal. Toxicology screening revealed a toxic concentration of lidocaine in his blood. The intoxication was transplacental, as a cord blood sample confirmed the toxic level. This was probably due to maternal perineal nerve block with lidocaine.Perineal local infiltration of lidocaine is not without risk for the newborn. Toxicology screen remains an important tool in the work-up of neonatal seizures and sudden unexpected postnatal collapse.