Document Detail


Acute drop in blood monocyte count differentiates NEC from other causes of feeding intolerance.
MedLine Citation:
PMID:  24674979     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objective:Necrotizing enterocolitis (NEC) is characterized by macrophage infiltration into affected tissues. Because intestinal macrophages are derived from recruitment and in situ differentiation of blood monocytes in the gut mucosa, we hypothesized that increased recruitment of monocytes to the intestine during NEC reduces the blood monocyte concentration and that this fall in blood monocytes can be a useful biomarker for NEC.Study Design:We reviewed medical records of very-low-birth-weight (VLBW) infants treated for NEC and compared them with a matched control group comprised of infants with feeding intolerance but no signs of NEC. Clinical characteristics and absolute monocyte counts (AMCs) were recorded. Diagnostic accuracy of AMC values was tested using receiver-operator characteristics (ROC).Result:We compared 69 cases and 257 controls (median 27 weeks, range 26 to 29 in both the groups). In stage II NEC, AMCs decreased from median 1.7 × 10(9) l(-1) (interquartile range (IQR) 0.98 to 2.4) to 0.8 (IQR 0.62 to 2.1); P<0.05. In stage III NEC, monocyte counts decreased from median 2.1 × 10(9) l(-1) (IQR 0.1.5 to 3.2) to 0.8 (IQR 0.6 to 1.9); P<0.05. There was no change in AMCs in control infants. ROC of AMC values showed a diagnostic accuracy (area under the curve) of 0.76. In a given infant with feeding intolerance, a drop in AMCs of >20% indicated NEC with sensitivity of 0.70 (95% confidence interval (CI) 0.57 to 0.81) and specificity of 0.71 (95% CI 0.64 to 0.77).Conclusion:We have identified a fall in blood monocyte concentration as a novel biomarker for NEC in VLBW infants.Journal of Perinatology advance online publication, 27 March 2014; doi:10.1038/jp.2014.52.
Authors:
J Remon; R Kampanatkosol; R R Kaul; J K Muraskas; R D Christensen; A Maheshwari
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-3-27
Journal Detail:
Title:  Journal of perinatology : official journal of the California Perinatal Association     Volume:  -     ISSN:  1476-5543     ISO Abbreviation:  J Perinatol     Publication Date:  2014 Mar 
Date Detail:
Created Date:  2014-3-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8501884     Medline TA:  J Perinatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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