Document Detail

Outcome of very-low-birth-weight infants exposed to beta-sympathomimetics in utero.
MedLine Citation:
PMID:  2048614     Owner:  NLM     Status:  MEDLINE    
In this study we examined neonatal and early childhood outcomes after intrauterine exposure to beta-sympathomimetic agents on infants with birth weights less than or equal to 1500 gm. The hospital courses and anthropomorphic, developmental, and neurologic development of 201 infants exposed to one or more beta-sympathomimetic agents (isoxsuprine, 33; ritodrine, 70; terbutaline, 43; combination, 55) were analyzed and compared with those of 130 control infants of similar birth weight. One hundred and seventy-seven infants had follow-up to 1 year of age, 101 to age 3, and 58 to age 4. When treatments consisting of a single beta-sympathomimetic or no treatment were compared, there were no statistically significant overall differences found in growth and development or in most of the short-term measures of infant well-being. However, significant overall differences with no evidence of confounding by time-related effects were found for the following; mortality, none greater than terbutaline; maximum positive inspiratory pressure when respiratory distress syndrome was present, none greater than terbutaline; neonatal trauma, terbutaline greater than ritodrine. Other differences were found in conjunction with evidence of time-related confounding, or within specific time intervals. It should be noted that these differences are not necessarily due to effects of the different treatments, as the data are observational.
R K Laros; J A Kitterman; D C Heilbron; R M Cowan; W H Tooley
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  American journal of obstetrics and gynecology     Volume:  164     ISSN:  0002-9378     ISO Abbreviation:  Am. J. Obstet. Gynecol.     Publication Date:  1991 Jun 
Date Detail:
Created Date:  1991-07-12     Completed Date:  1991-07-12     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0370476     Medline TA:  Am J Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1657-64; discussion 1664-5     Citation Subset:  AIM; IM    
Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco 94143-0132.
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MeSH Terms
Infant, Low Birth Weight*
Infant, Newborn
Isoxsuprine / adverse effects
Longitudinal Studies
Prenatal Exposure Delayed Effects*
Ritodrine / adverse effects
Statistics as Topic
Sympathomimetics / adverse effects*
Terbutaline / adverse effects
Time Factors
Tocolytic Agents / adverse effects
Grant Support
Reg. No./Substance:
0/Sympathomimetics; 0/Tocolytic Agents; 23031-25-6/Terbutaline; 26652-09-5/Ritodrine; 395-28-8/Isoxsuprine

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