Normal values for the soleus H-reflex in newborn infants 31-45 weeks post conceptional age.

Publication/Presentation Date

1-1-1991

Abstract

Normal values for the soleus H-reflex were established in 83 preterm and term infants 31 to 45 weeks postconceptional age. Infants at conceptional ages 31 to 34 weeks (n = 30) had a mean H-latency (msec) of 19.2 +/- 2.16; infants 35 to 39 weeks (n = 26), 16.67 +/- 1.48; and infants 40 to 45 weeks (n = 27), 15.94 +/- 1.45. Simple linear regression shows a significant relationship between conceptional age and H-latency (Pearson correlation = .68, R2 = 0.47, f = 71.31, p = .0001). Adjusting H-latency values for leg length, the regression of H-soleus latency/leg length (msec/cm) against conceptional age provides an even stronger relationship (r = 0.81, R2 = 0.66, f = 154.5, p = .0001). These results reflect the degree of myelination in infants of increasing conceptional ages. They can indicate the gestational age of the infants and afford comparative data in the event of peripheral nerve pathology.

Volume

72

Issue

1

First Page

28

Last Page

30

ISSN

0003-9993

Disciplines

Medicine and Health Sciences | Pediatrics

PubMedID

1985620

Department(s)

Department of Pediatrics

Document Type

Article

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