Back to Search
Start Over
Motor nerve conduction velocity in very preterm infants.
- Source :
-
Muscle & nerve [Muscle Nerve] 1999 Mar; Vol. 22 (3), pp. 372-7. - Publication Year :
- 1999
-
Abstract
- Sufficient reference values for motor nerve conduction velocity (MNCV) in very preterm infants are not yet available. In the placebo infants within an L-thyroxine supplementation trial, born at less than 30 weeks' gestation, ulnar and posterior tibial MNCV measurements were performed shortly after birth. Repeated measurements were done at 2 weeks, at term, and at 6 months corrected age. Cross-sectional MNCV values obtained in 50 infants and longitudinal MNCV values obtained in 15 infants were analyzed in relation to postmenstrual age (PMA). Mean ulnar MNCV increased from 13 to 44 m/s and mean tibial MNCV from 11 to 37 m/s. Motor nerve conduction velocity was clearly related to PMA. Longitudinal MNCV values were consistent with cross-sectional MNCV values. Possible confounding factors did not have any significant effect on MNCV. In the ulnar nerve, extrauterine maturation during the first 2 weeks of life was delayed compared with intrauterine maturation.
- Subjects :
- Aging physiology
Child Development physiology
Cross-Sectional Studies
Embryonic and Fetal Development physiology
Female
Fetus physiology
Humans
Infant, Newborn
Longitudinal Studies
Male
Reference Values
Tibial Nerve embryology
Tibial Nerve physiology
Time Factors
Ulnar Nerve embryology
Ulnar Nerve physiology
Infant, Premature physiology
Motor Neurons physiology
Neural Conduction physiology
Subjects
Details
- Language :
- English
- ISSN :
- 0148-639X
- Volume :
- 22
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Muscle & nerve
- Publication Type :
- Academic Journal
- Accession number :
- 10086898
- Full Text :
- https://doi.org/10.1002/(sici)1097-4598(199903)22:3<372::aid-mus10>3.0.co;2-b