Document Detail

Elevated Interleukin-6 Concentration and Alterations of the Coagulation System Are Associated with the Development of Intraventricular Hemorrhage in Extremely Preterm Infants.
MedLine Citation:
PMID:  22906886     Owner:  NLM     Status:  Publisher    
Background: Pathogenesis of intraventricular hemorrhage (IVH) in premature infants is multifactorial. Little is known about the influence of pro-inflammatory cytokine activation on the coagulation system in extremely preterm infants and its impact on the development of IVH. Objective: To determine the interaction between serum interleukin-6 (IL-6) and the coagulation system in preterm infants predisposed to the development of IVH. Methods: Vitamin K-dependent coagulation factors were examined retrospectively in 132 extremely preterm infants prior to vitamin K administration at the first day of life. Patients were grouped according to the occurrence of IVH and serum concentration of IL-6 >/<100 pg/ml. Results: Occurrence of IVH was associated with clinical diagnosis of chorioamnionitis, low gestational age, high CRIB score, air leak, catecholamine treatment, low initial hematocrit and increased serum concentration of IL-6. Infants developing IVH showed a diminished coagulation profile. Multivariable logistic regression analysis revealed decreased activity of coagulation factor VII, development of pneumothorax and low hematocrit as independent risk factors for the development of IVH. An increased IL-6 serum concentration was associated with a significantly decreased activity of coagulation factor VII and increased levels of fibrinogen. Conclusions: The association of elevated IL-6 levels with alterations of the coagulation profile and development of IVH found in our study supports the assumption of a close pathophysiological relation between inflammation and IVH.
Christine Poralla; Hans-Jörg Hertfelder; Johannes Oldenburg; Andreas Müller; Peter Bartmann; Axel Heep
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-18
Journal Detail:
Title:  Neonatology     Volume:  102     ISSN:  1661-7819     ISO Abbreviation:  Neonatology     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101286577     Medline TA:  Neonatology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  270-275     Citation Subset:  -    
Copyright Information:
Copyright © 2012 S. Karger AG, Basel.
Department of Neonatology, University of Bonn, Bonn, Germany.
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