PMID- 37422666 OWN - NLM STAT- MEDLINE DCOM- 20230710 LR - 20230718 IS - 1745-6215 (Electronic) IS - 1745-6215 (Linking) VI - 24 IP - 1 DP - 2023 Jul 8 TI - Effects of low-dose intravenous heparin therapy in aneurysmal subarachnoid hemorrhage: a randomized controlled clinical trial protocol. PG - 447 LID - 10.1186/s13063-023-07493-9 [doi] LID - 447 AB - BACKGROUND: Heparin anticoagulation therapy is a widely used method to prevent cerebral vasospasm (CV) and venous thrombosis in patients with subarachnoid hemorrhage caused by ruptured cerebral aneurysms. Subcutaneous heparin injection is considered safe and effective, whereas continuous intravenous heparin infusion is still being debated due to the risk of bleeding. Although most retrospective studies have confirmed the safety and effectiveness of unfractionated heparin (UFH) after aneurysm embolization therapy and its ability to reduce CV, there is still no randomized clinical trial comparing UFH and subcutaneous low-molecular-weight heparin (LMWH) injection in this population. Therefore, this study aims to compare the clinical outcomes associated with these two treatment approaches. METHODS: The study is an open-label, single-center, randomized controlled trial and aims to recruit 456 patients, with 228 patients in each group. The primary outcome was CV; the second outcomes measures are occurrence of bleeding events, ischemic events, heparin-induced thrombocytopenia, deep vein thrombosis, cerebral venous circulation time, brain edema score, and hydrocephalus incidence. ETHICS AND DISSEMINATION: This study protocol obtained ethical approval from the Ethics Committee of Baoan People's Hospital, Shenzhen, Guangdong (approval number: BYL20220805). This work will be published in peer-reviewed international medical journals and presented at medical conferences. TRIAL REGISTRATION: ClinicalTrials ID: NCT05696639. Registered on March 30, 2023. CI - (c) 2023. The Author(s). FAU - Zhang, Yifan AU - Zhang Y AD - Department of Neurology, ShenZhen BaoAn People's Hospital, ShenZhen, China. FAU - Hu, Jiangang AU - Hu J AD - Department of Neurosurgery, ShenZhen BaoAn People's Hospital, ShenZhen, China. baoanhjg@outlook.com. LA - eng SI - ClinicalTrials.gov/NCT05696639 GR - 202214/Youth Scientific Research Foundation of Shenzhen Baon People's Hospital./ PT - Clinical Trial Protocol PT - Journal Article DEP - 20230708 PL - England TA - Trials JT - Trials JID - 101263253 RN - 9005-49-6 (Heparin) RN - 0 (Heparin, Low-Molecular-Weight) RN - 0 (Anticoagulants) SB - IM MH - Humans MH - *Heparin/adverse effects MH - Heparin, Low-Molecular-Weight/therapeutic use MH - *Subarachnoid Hemorrhage/diagnosis/drug therapy MH - Retrospective Studies MH - Anticoagulants/therapeutic use MH - Randomized Controlled Trials as Topic PMC - PMC10329784 OTO - NOTNLM OT - Aneurysmal subarachnoid hemorrhage OT - RCT protocol OT - Randomized controlled trial COIS- The author declare no competing interests. EDAT- 2023/07/09 01:07 MHDA- 2023/07/10 06:42 PMCR- 2023/07/08 CRDT- 2023/07/08 23:29 PHST- 2023/06/03 00:00 [received] PHST- 2023/07/03 00:00 [accepted] PHST- 2023/07/10 06:42 [medline] PHST- 2023/07/09 01:07 [pubmed] PHST- 2023/07/08 23:29 [entrez] PHST- 2023/07/08 00:00 [pmc-release] AID - 10.1186/s13063-023-07493-9 [pii] AID - 7493 [pii] AID - 10.1186/s13063-023-07493-9 [doi] PST - epublish SO - Trials. 2023 Jul 8;24(1):447. doi: 10.1186/s13063-023-07493-9.