Normal values for phrenic nerve latency in children.
Data derived from detailed studies of normal phrenic nerve latency in a large group of children are presented. They highlight the major differences between the three previously published studies of normal children. Phrenic nerve latency shows a curvilinear relationship with age, averaging 6.0 ms at 0-6 months, falling to 4.8 ms between 1 and 2 years, then rising to 6.3 ms between 10 and 18 years of age. These data represent the largest published study on normal phrenic nerve latency in children.
Russell
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RI
Department of Paediatrics, Box 181, Addenbrooke's Hospital, Hills Road, Cambridge CB2 2QQ, UK. robert-ross-russell@addenbrookes.nhs.uk
Helps
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Helms
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D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009431:Neural Conduction; D010791:Phrenic Nerve / Q000502:physiology*; D011930:Reaction Time; D012016:Reference Values