PMID- 25534987 OWN - NLM STAT- MEDLINE DCOM- 20150915 LR - 20181202 IS - 1557-8615 (Electronic) IS - 0883-9441 (Linking) VI - 30 IP - 2 DP - 2015 Apr TI - Unfractionated heparin dosing for therapeutic anticoagulation in critically ill obese adults. PG - 395-9 LID - S0883-9441(14)00486-9 [pii] LID - 10.1016/j.jcrc.2014.11.020 [doi] AB - PURPOSE: Research evaluating unfractionated heparin (UFH) dosing in obese critically ill populations is limited. This study aimed to determine optimal weight-based and total therapeutic infusion rates of UFH in this population. METHODS: This retrospective cohort study compared adults on UFH infusions in intensive care units from May 2011 through October 2013 across 3 weight strata: 95 to 104 kg (control), 105 to 129 kg (high weight), and greater than or equal to 130 kg (higher weight). Primary outcomes included total and weight-based infusion rates for therapeutic anticoagulation. RESULTS: To achieve therapeutic activated partial thromboplastin times, higher weight patients had higher mean infusion rates compared with control (2017 vs 1582 U/h; P = .002). Mean weight-based therapeutic infusion rate was lower in the higher weight group compared with control (13.1 vs 15.8 U kg(-1) h(-1); P = .008). Post hoc analyses indicated mean weight-based infusion rate to achieve therapeutic anticoagulation was 15 U kg(-1) h(-1) in patients less than 165 kg and 13 U kg(-1) h(-1) in patients greater than 165 kg. CONCLUSIONS: Patients greater than or equal to 130 kg have lower weight-based heparin requirements compared with patients 95 to 104 kg. This difference appears to be driven by patients greater than 165 kg. Patients greater than 165 kg have lower weight-based heparin requirements, whereas patients from 105 to 164 kg have weight-based requirements similar to a normal-weight patient population. Initiating heparin at appropriate weight-based doses for obese patients may optimize anticoagulation. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - Hohner, E M AU - Hohner EM AD - Department of Pharmacy, The Johns Hopkins Hospital, 600 N Wolfe St, Carnegie 180, Baltimore, MD 21287, USA. Electronic address: ehohner1@jhmi.edu. FAU - Kruer, R M AU - Kruer RM AD - Department of Pharmacy, The Johns Hopkins Hospital, 600 N Wolfe St, Carnegie 180, Baltimore, MD 21287, USA. FAU - Gilmore, V T AU - Gilmore VT AD - Department of Pharmacy, The Johns Hopkins Hospital, 600 N Wolfe St, Carnegie 180, Baltimore, MD 21287, USA. FAU - Streiff, M AU - Streiff M AD - Department of Medicine, Division of Hematology, Johns Hopkins Medical Institutions, 600 N Wolfe St, #800, Baltimore, MD 21287, USA. FAU - Gibbs, H AU - Gibbs H AD - Department of Pharmacy, The Johns Hopkins Hospital, 600 N Wolfe St, Carnegie 180, Baltimore, MD 21287, USA. LA - eng PT - Journal Article DEP - 20141203 PL - United States TA - J Crit Care JT - Journal of critical care JID - 8610642 RN - 0 (Anticoagulants) RN - 9005-49-6 (Heparin) SB - IM MH - Adult MH - Aged MH - Anticoagulants/*administration & dosage MH - Atrial Fibrillation/complications/*drug therapy MH - Cohort Studies MH - Comorbidity MH - Critical Illness MH - Female MH - Heparin/*administration & dosage MH - Humans MH - Infusions, Intravenous MH - Intensive Care Units MH - Male MH - Middle Aged MH - Obesity/*complications MH - Partial Thromboplastin Time MH - Pulmonary Embolism/complications/*drug therapy MH - Retrospective Studies MH - Time Factors MH - Venous Thromboembolism/complications/*drug therapy OTO - NOTNLM OT - Anticoagulation OT - Critically ill OT - Heparin OT - Obesity EDAT- 2014/12/24 06:00 MHDA- 2015/09/16 06:00 CRDT- 2014/12/24 06:00 PHST- 2014/08/10 00:00 [received] PHST- 2014/10/27 00:00 [revised] PHST- 2014/11/26 00:00 [accepted] PHST- 2014/12/24 06:00 [entrez] PHST- 2014/12/24 06:00 [pubmed] PHST- 2015/09/16 06:00 [medline] AID - S0883-9441(14)00486-9 [pii] AID - 10.1016/j.jcrc.2014.11.020 [doi] PST - ppublish SO - J Crit Care. 2015 Apr;30(2):395-9. doi: 10.1016/j.jcrc.2014.11.020. Epub 2014 Dec 3.