PMID- 28402864 OWN - NLM STAT- MEDLINE DCOM- 20180312 LR - 20181202 IS - 1879-2472 (Electronic) IS - 0049-3848 (Linking) VI - 154 DP - 2017 Jun TI - Meta-analysis on anticoagulation and prevention of thrombosis and mortality among patients with lung cancer. PG - 28-34 LID - S0049-3848(17)30250-5 [pii] LID - 10.1016/j.thromres.2017.03.024 [doi] AB - BACKGROUND: Venous thromboembolism (Wickham et al., 2012 [1]) is a leading cause of morbidity and mortality among patients with cancer; however, primary thromboprophylaxis is not routinely recommended. We performed a systematic review and meta-analysis of randomized control trials (RCTs) to measure the impact of primary VTE prevention and its effect on mortality among patients with lung cancer. METHODS: With assistance from a master librarian, we searched Ovid, Scopus, DARE, CINAHL, MEDLINE, EMBASE, EBM reviews-Cochrane database of systematic reviews, EBM reviews-ACP journal, and EBM Reviews-Databases for relevant studies following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We included articles addressing the role of anticoagulation in patients with lung cancer for primary VTE prevention for outpatients. The clinical outcomes were VTE occurrence, all-cause mortality, major and clinically relevant non-major bleeding. The results are presented as odds ratio (OR) and data were analyzed using R and R META package (Version 0.8-2, Author: Guido Schwarzer). RESULTS: Eleven studies with 5107 patients were included for the final analysis. We found 50% lower VTE occurrence in the prophylaxis group with low molecular weight heparin (LMWH) (OR: 0.50; 95% Confidence Interval (CI): 0.38-0.66; I2: 0%) without an increased bleeding risk (OR: 2.03; 95% CI: 0.78-5.25; I2: 71.1%). We found a mortality benefit when we grouped all VTE prevention modalities [LMWH, Warfarin, unfractionated heparin (UFH)] (OR: 0.75; 95% CI: 0.58-0.96; I2: 18.4%), but no significant difference when LMWH (OR: 0.74; 95% CI: 0.49-1.11; I2: 56.9%) and warfarin were analyzed individually (OR: 0.75; 95% CI: 0.47-1.21; I2: 0%). We found higher odds of bleeding combining all treatment modalities (OR: 3.06; 95% CI: 1.64-5.72; I2: 64.4%) with the greatest occurrence in the warfarin group (OR: 5.42; 95% CI: 3.48-8.45; I2: 45.7%). CONCLUSION: Primary VTE prophylaxis with LMWH reduces the occurrence of VTE among ambulatory patients with lung cancer, without apparent increase in bleeding risk. There is a measurable mortality benefit of anticoagulation strategies that remains elusive when the analysis is restricted to a single agent. CI - Copyright (c) 2017 Elsevier Ltd. All rights reserved. FAU - Fuentes, H E AU - Fuentes HE AD - Department of Internal Medicine, John Stroger Jr. Hospital, Chicago, IL, United States. FAU - Oramas, D M AU - Oramas DM AD - Department of Pathology, University of Illinois at Chicago, Chicago, IL, United States. FAU - Paz, L H AU - Paz LH AD - Department of Internal Medicine, John Stroger Jr. Hospital, Chicago, IL, United States. FAU - Casanegra, A I AU - Casanegra AI AD - Department of Cardiology - Vascular Medicine, Mayo Clinic, Rochester, MN, United States. FAU - Mansfield, A S AU - Mansfield AS AD - Division of Medical Oncology, Mayo Clinic, Rochester, MN, United States. FAU - Tafur, A J AU - Tafur AJ AD - Cardiology - Vascular Medicine, Northshore University Healthsystem, Evanston, IL, United States. Electronic address: atafur@northshore.org. LA - eng PT - Journal Article PT - Meta-Analysis PT - Systematic Review DEP - 20170401 PL - United States TA - Thromb Res JT - Thrombosis research JID - 0326377 RN - 0 (Anticoagulants) RN - 0 (Heparin, Low-Molecular-Weight) RN - 5Q7ZVV76EI (Warfarin) RN - 9005-49-6 (Heparin) SB - IM MH - Anticoagulants/adverse effects/*therapeutic use MH - Hemorrhage/chemically induced MH - Heparin/adverse effects/*therapeutic use MH - Heparin, Low-Molecular-Weight/adverse effects/therapeutic use MH - Humans MH - Lung Neoplasms/*complications/mortality MH - Odds Ratio MH - Treatment Outcome MH - Venous Thromboembolism/*etiology/mortality/*prevention & control MH - Warfarin/adverse effects/*therapeutic use OTO - NOTNLM OT - Anticoagulation OT - Lung cancer OT - Prevention OT - Systematic review OT - Thromboembolism EDAT- 2017/04/14 06:00 MHDA- 2018/03/13 06:00 CRDT- 2017/04/14 06:00 PHST- 2017/02/10 00:00 [received] PHST- 2017/03/20 00:00 [revised] PHST- 2017/03/29 00:00 [accepted] PHST- 2017/04/14 06:00 [pubmed] PHST- 2018/03/13 06:00 [medline] PHST- 2017/04/14 06:00 [entrez] AID - S0049-3848(17)30250-5 [pii] AID - 10.1016/j.thromres.2017.03.024 [doi] PST - ppublish SO - Thromb Res. 2017 Jun;154:28-34. doi: 10.1016/j.thromres.2017.03.024. Epub 2017 Apr 1.