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Earlier detection of coagulopathy with thromboelastometry during pediatric cardiac surgery: a prospective observational study.
MedLine Citation:
PMID:  23302040     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: Earlier detection of coagulopathy in pediatric cardiac surgery patients. AIM: To determine whether thromboelastometry (TEM) analysis before weaning from cardiopulmonary bypass (CPB) and hemoconcentration is predictive of post-CPB results and whether analysis of clot firmness already after 10 min yields reliable results. BACKGROUND: Cardiac surgery with CPB induces a coagulopathy that may contribute to postoperative complications. Earlier detection increases the possibility of initiating countermeasures. METHODS/MATERIAL: Fifty-six pediatric cardiac surgery patients were included in a prospective observational study. HEPTEM and FIBTEM clotting time (CT), clot formation time (CFT), and clot firmness after 10 min (A10) and at maximum (MCF) were analyzed during CPB and after CPB and ultrafiltration with modified rotational thromboelastometry (ROTEM(®) ). The analyses were compared, and correlations and differences were calculated. RESULTS: Hemoconcentration with modified ultrafiltration increased hematocrit from 28 ± 3 to 37 ± 4% (P < 0.001). Correlation coefficients of the TEM variables during and after CPB ranged from 0.61 to 0.82 (all P < 0.001). HEPTEM-CT and HEPTEM-MCF differed significantly but the differences were marginal. Both HEPTEM and FIBTEM A10 measurements during CPB were significantly less than MCF (P < 0.001 for both), but the correlations were highly significant (HEPTEM: r = 0.95, P < 0.001; FIBTEM: r = 0.96, P < 0.001), and the differences were predictable, with narrow confidence intervals (HEPTEM: -8.2 mm (-8.9 to -7.5); FIBTEM: -0.5 mm (-0.7 to -0.3). CONCLUSION: The results suggest that intraoperative TEM analyses can be accelerated by analyzing HEPTEM/FIBTEM on CPB before hemoconcentration and by analyzing clot firmness already after 10 min.
Authors:
Birgitta S Romlin; Håkan Wåhlander; Mats Synnergren; Fariba Baghaei; Anders Jeppsson
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-10
Journal Detail:
Title:  Paediatric anaesthesia     Volume:  -     ISSN:  1460-9592     ISO Abbreviation:  Paediatr Anaesth     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9206575     Medline TA:  Paediatr Anaesth     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 Blackwell Publishing Ltd.
Affiliation:
Department of Pediatric Anesthesia and Intensive Care, Queen Silvia's Children Hospital, Gothenburg, Sweden.
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