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A weight-based formula for the estimation of gastric tube insertion length in newborns.
MedLine Citation:
PMID:  22668691     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVE: : Safe and effective functioning of nasogastric and orogastric tubes in the neonatal intensive care unit (NICU) is achieved by ensuring their correct placement within the stomach. Insertion length has traditionally been estimated using morphological measures, but studies have indicated that these are frequently inaccurate. This study aimed to evaluate the frequency of correct tube placement and to determine a weight-based formula for estimation of insertion length.
STUDY DESIGN: : A prospective study was performed over a 6-month period in a tertiary NICU. Infants with gastric tubes who required radiography for clinical reasons were included. The infant's weight and the type and length of tube were documented. A radiologist assessed the tube position to be high, borderline, correct, or long.
RESULTS: : A total of 218 radiographs of infants weighing 397 to 4131 g were included. Correct tube position was achieved on 74% of occasions. By analyzing data for correct tube positions, formulas were derived to predict tube insertion length in centimeters: orogastric = [3 × weight (kg) + 12] and nasogastric = [3 × weight (kg) + 13]. The formulas correctly predicted 60% of misplaced orogastric tubes and 100% of misplaced nasogastric tubes.
CONCLUSION: : We propose a novel weight-based formula for estimation of gastric tube insertion length in newborn infants to improve the accuracy of this routine procedure.
Authors:
Danielle Freeman; Virginia Saxton; James Holberton
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Advances in neonatal care : official journal of the National Association of Neonatal Nurses     Volume:  12     ISSN:  1536-0911     ISO Abbreviation:  Adv Neonatal Care     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-06-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101125644     Medline TA:  Adv Neonatal Care     Country:  United States    
Other Details:
Languages:  eng     Pagination:  179-82     Citation Subset:  IM    
Affiliation:
Departments of Paediatrics (Drs Freeman and Holberton) and Medical Imaging (Dr Saxton), Mercy Hospital for Women, Melbourne, Victoria, Australia.
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