PMID- 32617214 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2168-8184 (Print) IS - 2168-8184 (Electronic) IS - 2168-8184 (Linking) VI - 12 IP - 5 DP - 2020 May 28 TI - Bleeding and Thrombotic Risk in Low Dose Heparin Infusion as Compared to Standard Dose Heparin Infusion. PG - e8339 LID - 10.7759/cureus.8339 [doi] LID - e8339 AB - Intravenous unfractionated heparin (UFH) remains one of the most commonly used anticoagulants in the hospital setting. The optimal protocol for initiation and maintenance of UFH has been difficult to determine. Over the past two decades, weight-based nomogram protocols have gained favor. Herein, we present a retrospective study of 377 patients at a single tertiary academic center treated with low intensity (LI) and standard intensity (SI) UFH protocols for therapeutic anticoagulation. UFH levels are measured by anti-Xa assay activity with therapeutic levels of 0.30 to 0.70 IU/mL for SI and 0.25 to 0.35 IU/mL for LI. Patients treated on the LI protocol were more likely to have had a previous history of bleeding and lower baseline hemoglobin. Incidence of new or worsening thrombus while on UFH was comparable between both protocols (odds ratio (OR) 0.93, 95% confidence interval (CI) 0.29-2.98, p=0.899). Patients on LI protocol had higher incidence of bleeding while on UFH (OR 1.21, 95% CI 0.51-2.89, p=0.667). Our study thus suggests that the LI protocol may have comparable efficacy to the SI protocol in treating venous thromboembolism (VTE) and that target anti-Xa levels of 0.25 to 0.35 IU/mL may be more optimal in high-risk patients. CI - Copyright (c) 2020, Lutfi et al. FAU - Lutfi, Forat AU - Lutfi F AD - Hematology and Oncology, University of Maryland Medical Center, Baltimore, USA. FAU - Bishnoi, Rohit AU - Bishnoi R AD - Hematology and Oncology, University of Florida Health, Gainesville, USA. FAU - Patel, Vikas J AU - Patel VJ AD - Gastroenterology, University of Florida Health, Gainesville, USA. FAU - Elfasi, Aisha AU - Elfasi A AD - Neurology, University of Florida Health, Gainesville, USA. FAU - Setteducato, Michael AU - Setteducato M AD - Internal Medicine, University of Florida Health, Gainesville, USA. FAU - Zhang, Shuyao AU - Zhang S AD - Internal Medicine, University of Texas Southwestern Medical Center, Dallas, USA. FAU - Shah, Chintan P AU - Shah CP AD - Hematology and Oncology, University of Florida Health, Gainesville, USA. FAU - Kurian, Saji AU - Kurian S AD - Internal Medicine, University of Florida Health, Gainesville, USA. FAU - Kamath, Chethana AU - Kamath C AD - Internal Medicine, University of Florida Health, Gainesville, USA. FAU - Kim, Dae Jun AU - Kim DJ AD - Internal Medicine, University of Florida Health, Gainesville, USA. FAU - Zumberg, Marc S AU - Zumberg MS AD - Hematology and Oncology, University of Florida Health, Gainesville, USA. FAU - Murphy, Martina AU - Murphy M AD - Hematology and Oncology, University of Florida Health, Gainesville, USA. LA - eng PT - Journal Article DEP - 20200528 PL - United States TA - Cureus JT - Cureus JID - 101596737 PMC - PMC7325397 OTO - NOTNLM OT - anticoagulant therapy OT - hemorrhage OT - heparin OT - thrombosis OT - venous thromboembolism COIS- The authors have declared that no competing interests exist. EDAT- 2020/07/04 06:00 MHDA- 2020/07/04 06:01 PMCR- 2020/05/28 CRDT- 2020/07/04 06:00 PHST- 2020/07/04 06:00 [entrez] PHST- 2020/07/04 06:00 [pubmed] PHST- 2020/07/04 06:01 [medline] PHST- 2020/05/28 00:00 [pmc-release] AID - 10.7759/cureus.8339 [doi] PST - epublish SO - Cureus. 2020 May 28;12(5):e8339. doi: 10.7759/cureus.8339.