PMID- 30484265 OWN - NLM STAT- MEDLINE DCOM- 20210817 LR - 20230701 IS - 1898-018X (Electronic) IS - 1897-5593 (Print) IS - 1898-018X (Linking) VI - 27 IP - 5 DP - 2020 TI - Low molecular weight heparin in surgical valve procedures: When and how much for an optimal prophylaxis? PG - 548-557 LID - 10.5603/CJ.a2018.0146 [doi] AB - BACKGROUND: Periprocedural antithrombotic prophylaxis in patients undergoing surgical valve procedures (SVP) is insufficiently investigated. Low molecular weight heparin (LMWH) has been considered as an alternative to unfractionated heparin (UFH). However, safety and efficacy of this prophylaxis strategy is unknown. This study aimed to investigate safety and efficacy of periprocedural LMWH prophylaxis and determine optimal dosage and timing for periprocedural cessation and initiation. METHODS: The present study is a retrospective, single-center observational analysis of 388 patients who underwent SVP (valve replacement or valvuloplasty) between 2015 and 2016. In-hospital endpoints were bleeding, transfusions, reoperation due to bleeding, and thromboembolic events. RESULTS: Giving the first dose of LMWH on the day of SVP was a risk factor for bleeding (OR 1.07; 95% CI 1.04-1.10; p < 0.001), transfusions (OR 1.04; 95% CI 1.01-1.07; p = 0.008) and reoperation due to bleeding (OR 1.20; 95% CI 1.12-1.28; p < 0.001), with > 40 mg/day as a predictor. A higher dosage of LMWH premedication was an independent risk factor for bleeding (OR 1.02; 95% CI 1.00-1.04; p = 0.03) and transfusion (OR 1.03; 95% CI 1.01-1.05; p = 0.01), with > 60 mg/day as a predictor for these events. LMWH dosed within 24 h prior to SVP increased the risk of transfusion (AUC 0.636; 95% CI 0.496-0.762; p = 0.04). CONCLUSIONS: Bleeding is an important early concern after surgical valve procedures. Safety and efficacy of periprocedural prophylaxis with LMWH depends on dosage and the timing of its administration. The most optimal periprocedural prophylaxis in the SVP population appears to be LMWH in dosage of 40-60 mg/day, which is recommended for deep vein thrombosis prophylaxis, ceased at least one day before SVP. FAU - Czerwinska-Jelonkiewicz, Katarzyna AU - Czerwinska-Jelonkiewicz K AD - Intensive Cardiac Care Unit, Ist Department of Cardiovascular Surgery. kasia_czerwinska@vp.pl. FAU - Cisowski, Marek AU - Cisowski M AD - Ist Department of Cardiac Surgery, American Heart of Poland Inc, Armii Krajowej 101, 43-316 Bielsko-Biala, Poland. FAU - Bochenek, Andrzej AU - Bochenek A AD - Ist Department of Cardiac Surgery, American Heart of Poland Inc, Armii Krajowej 101, 43-316 Bielsko-Biala, Poland. AD - Medical University of Silesia, Medykow 18, 40-752 Katowice,, Poland. FAU - Buszman, Piotr AU - Buszman P AD - Center for Cardiovascular Research and Development, American Heart of Poland, Katowice, Poland, Poland. FAU - Milewski, Krzysztof AU - Milewski K AD - Center for Cardiovascular Research and Development, American Heart of Poland, Katowice, Poland, Poland. FAU - Kunik, Piotr AU - Kunik P AD - Medical University of Silesia, Medykow 18, 40-752 Katowice,, Poland. FAU - Mularska, Magdalena AU - Mularska M AD - Medical University of Silesia, Medykow 18, 40-752 Katowice,, Poland. FAU - Kocot, Krzysztof AU - Kocot K AD - Medical University of Silesia, Medykow 18, 40-752 Katowice,, Poland. FAU - Politowski, Piotr AU - Politowski P AD - Medical University of Silesia, Medykow 18, 40-752 Katowice,, Poland. FAU - Braczkowski, Jakub AU - Braczkowski J AD - Medical University of Silesia, Medykow 18, 40-752 Katowice,, Poland. FAU - Trznadel, Agata AU - Trznadel A AD - Medical University of Silesia, Medykow 18, 40-752 Katowice,, Poland. FAU - Aboodi, Michael S AU - Aboodi MS AD - Department of Medicine, Montefiore Medical Center, New York, United States. FAU - Buszman, Pawel AU - Buszman P AD - Medical University of Silesia, Medykow 18, 40-752 Katowice,, Poland. AD - Center for Cardiovascular Research and Development, American Heart of Poland, Katowice, Poland, Poland. LA - eng PT - Journal Article DEP - 20181128 PL - Poland TA - Cardiol J JT - Cardiology journal JID - 101392712 RN - 0 (Anticoagulants) RN - 0 (Heparin, Low-Molecular-Weight) RN - 9005-49-6 (Heparin) SB - IM MH - Anticoagulants MH - Female MH - Heparin MH - *Heparin, Low-Molecular-Weight MH - Humans MH - *Percutaneous Coronary Intervention MH - Retrospective Studies MH - Stroke Volume MH - Surgical Instruments MH - Ventricular Function, Left PMC - PMC8078967 OTO - NOTNLM OT - antithrombotic prophylaxis OT - bleeding complications OT - surgical valve procedure COIS- Conflict of interest: None declared EDAT- 2018/11/30 06:00 MHDA- 2021/08/18 06:00 PMCR- 2020/11/06 CRDT- 2018/11/29 06:00 PHST- 2018/09/20 00:00 [received] PHST- 2018/11/20 00:00 [accepted] PHST- 2018/10/26 00:00 [revised] PHST- 2018/11/30 06:00 [pubmed] PHST- 2021/08/18 06:00 [medline] PHST- 2018/11/29 06:00 [entrez] PHST- 2020/11/06 00:00 [pmc-release] AID - VM/OJS/J/60116 [pii] AID - cardj-27-5-548 [pii] AID - 10.5603/CJ.a2018.0146 [doi] PST - ppublish SO - Cardiol J. 2020;27(5):548-557. doi: 10.5603/CJ.a2018.0146. Epub 2018 Nov 28.