Document Detail


The evolution of primitive reflexes in extremely premature infants.
MedLine Citation:
PMID:  3797120     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A longitudinal study describes the pattern of appearance of eight primitive reflexes in a population of 47 viable extremely premature infants, beginning as early as 25 wk postconceptional age (PCA). Infants were examined weekly, from 1 wk of age until discharge from the neonatal intensive care unit. Primitive reflexes were graded as to completeness and intensity of response. Three patterns emerged: the upper and lower extremity grasp reflexes were present in all premature infants, from 25 wk and beyond, the Moro, asymmetric tonic neck reflex and Galant (lateral trunk incurvature reflex) were present in some premature infants as early as 25 wk PCA, and in the majority by 30 wk PCA, and the lower extremity placing, positive support, and stepping were occasionally present prior to 30 wk PCA, yet were not uniformly present and/or complete even at term. In each case, the primitive reflex became stronger, more complete, more consistently elicited and more prevalent with increasing postconceptional age. The pattern of primitive reflexes in the premature infant at term (40 wk PCA) is similar to that of full-term newborns. Sequential assessment of the primitive reflexes may be a useful method of evaluating extremely premature infants prior to term.
Authors:
M C Allen; A J Capute
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pediatric research     Volume:  20     ISSN:  0031-3998     ISO Abbreviation:  Pediatr. Res.     Publication Date:  1986 Dec 
Date Detail:
Created Date:  1987-02-19     Completed Date:  1987-02-19     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0100714     Medline TA:  Pediatr Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1284-9     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Birth Weight
Female
Gestational Age
Humans
Infant, Newborn
Infant, Premature / physiology*
Longitudinal Studies
Male
Reflex / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Studies on the effects of L-thyroxine, L-carnitine and an L-thyroxine-L-carnitine combination on dip...
Next Document:  Pulmonary deposition sites of an inhaled radiolabeled submicronic aerosol.