PMID- 19714446 OWN - NLM STAT- MEDLINE DCOM- 20100813 LR - 20211020 IS - 1573-742X (Electronic) IS - 0929-5305 (Linking) VI - 29 IP - 4 DP - 2010 May TI - Monitoring unfractionated heparin in pediatric patients with congenital heart disease having cardiac catheterization or cardiac surgery. PG - 429-36 LID - 10.1007/s11239-009-0391-6 [doi] AB - Determine the effect of age and congenital heart disease (CHD) on whole blood tests for monitoring unfractionated heparin (UFH) in children. Determine correlation with anti-Xa levels in children undergoing cardiac catheterization or cardiac surgery. A prospective cross-sectional study of 211 healthy children about to have minor surgery (median age 3.5 years) and 110 CHD patients (median age 2.1 years) undergoing cardiac catheterization or cardiac surgery. Commonly used whole blood tests (two activated clotting times and an activated partial thromboplastin time; ACT+, ACT-LR, and APTT, respectively) were obtained before procedures and after UFH in CHD patients. Data were analyzed for effect of age and CHD and correlation with anti-Xa levels. In healthy subjects the ACT+ was lower in younger (<3 years) patients while the ACT-LR and APTT were unaffected. CHD patients exhibited an opposite trend with higher values in the younger patients. After bolus heparin the ACT+ exhibited the strongest correlation (r = 0.89) with anti-Xa levels in both locations (the APTT was too sensitive at post-bolus levels). When anti-Xa levels were below 1.0 IU/ml (range of thromboembolism therapy 0.35-0.7 IU/ml), the APTT correlation coefficient was 0.72. Some whole blood coagulation tests are affected by age in healthy children similar to laboratory tests and are variably influenced by the presence of CHD. ACT+ is the most reliable predictor of anti-Xa levels in both catheterization and surgery for pediatric patients. The APTT exhibited stronger correlation with anti-Xa than previous reports of laboratory APTT and warrants further evaluation for monitoring heparin thromboembolism therapy. FAU - Kim, G G AU - Kim GG AD - Department of Anesthesiology and Critical Care, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA. FAU - El Rouby, S AU - El Rouby S FAU - Thompson, J AU - Thompson J FAU - Gupta, A AU - Gupta A FAU - Williams, J AU - Williams J FAU - Jobes, D R AU - Jobes DR LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Thromb Thrombolysis JT - Journal of thrombosis and thrombolysis JID - 9502018 RN - 0 (Anticoagulants) RN - 0 (Blood Coagulation Factor Inhibitors) RN - 0 (Factor Xa Inhibitors) RN - 9005-49-6 (Heparin) SB - IM MH - Adolescent MH - Age Factors MH - Anticoagulants/administration & dosage/*pharmacokinetics MH - Blood Coagulation Factor Inhibitors/blood MH - *Cardiac Catheterization MH - Cardiac Surgical Procedures MH - Child MH - Child, Preschool MH - Cross-Sectional Studies MH - Factor Xa Inhibitors MH - Female MH - Heart Defects, Congenital/blood/*therapy MH - Heparin/administration & dosage/*pharmacokinetics MH - Humans MH - Infant MH - Infant, Newborn MH - Male MH - *Monitoring, Physiologic MH - Partial Thromboplastin Time MH - Prospective Studies MH - Thromboembolism/blood/drug therapy EDAT- 2009/08/29 09:00 MHDA- 2010/08/14 06:00 CRDT- 2009/08/29 09:00 PHST- 2009/08/29 09:00 [entrez] PHST- 2009/08/29 09:00 [pubmed] PHST- 2010/08/14 06:00 [medline] AID - 10.1007/s11239-009-0391-6 [doi] PST - ppublish SO - J Thromb Thrombolysis. 2010 May;29(4):429-36. doi: 10.1007/s11239-009-0391-6.