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中低收入国家 COVID-19 住院患者抗凝和静脉血栓疾病管理的实用建议。

Pragmatic Recommendations for the Management of Anticoagulation and Venous Thrombotic Disease for Hospitalized Patients with COVID-19 in Low- and Middle-Income Countries.

机构信息

1Division of Pulmonary and Critical Care Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.

2Division of Pulmonary and Critical Care Medicine, Atrium Health, Charlotte, North Carolina.

出版信息

Am J Trop Med Hyg. 2021 Jan 11;104(3_Suppl):99-109. doi: 10.4269/ajtmh.20-1305.

Abstract

New studies of COVID-19 are constantly updating best practices in clinical care. Often, it is impractical to apply recommendations based on high-income country investigations to resource limited settings in low- and middle-income countries (LMICs). We present a set of pragmatic recommendations for the management of anticoagulation and thrombotic disease for hospitalized patients with COVID-19 in LMICs. In the absence of contraindications, we recommend prophylactic anticoagulation with either low molecular weight heparin (LMWH) or unfractionated heparin (UFH) for all hospitalized COVID-19 patients in LMICs. If available, we recommend LMWH over UFH for venous thromboembolism (VTE) prophylaxis to minimize risk to healthcare workers. We recommend against the use of aspirin for VTE prophylaxis in hospitalized COVID-19 and non-COVID-19 patients in LMICs. Because of limited evidence, we suggest against the use of "enhanced" or "intermediate" prophylaxis in COVID-19 patients in LMICs. Based on current available evidence, we recommend against the initiation of empiric therapeutic anticoagulation without clinical suspicion for VTE. If contraindications exist to chemical prophylaxis, we recommend mechanical prophylaxis with intermittent pneumatic compression (IPC) devices or graduated compression stockings (GCS) for hospitalized COVID-19 patients in LMICs. In LMICs, we recommend initiating therapeutic anticoagulation for hospitalized COVID-19 patients, in accordance with local clinical practice guidelines, if there is high clinical suspicion for VTE, even in the absence of testing. If available, we recommend LMWH over UFH or Direct oral anticoagulants for treatment of VTE in LMICs to minimize risk to healthcare workers. In LMIC settings where continuous intravenous UFH or LMWH are unavailable or not feasible to use, we recommend fixed dose heparin, adjusted to body weight, in hospitalized COVID-19 patients with high clinical suspicion of VTE. We suggest D-dimer measurement, if available and affordable, at the time of admission for risk stratification, or when clinical suspicion for VTE is high. For hospitalized COVID-19 patients in LMICs, based on current available evidence, we make no recommendation on the use of serial D-dimer monitoring for the initiation of therapeutic anticoagulation. For hospitalized COVID-19 patients in LMICs receiving intravenous therapeutic UFH, we recommend serial monitoring of partial thromboplastin time or anti-factor Xa level, based on local laboratory capabilities. For hospitalized COVID-19 patients in LMICs receiving LMWH, we suggest against serial monitoring of anti-factor Xa level. We suggest serial monitoring of platelet counts in patients receiving therapeutic anticoagulation for VTE, to assess risk of bleeding or development of heparin induced thrombocytopenia.

摘要

新的 COVID-19 研究不断更新临床护理的最佳实践。通常情况下,将高收入国家调查的建议应用于资源有限的低收入和中等收入国家(LMICs)是不切实际的。我们为资源有限的低收入和中等收入国家(LMICs)中住院的 COVID-19 患者的抗凝和血栓疾病管理提出了一套实用的建议。在没有禁忌症的情况下,我们建议所有住院的 COVID-19 患者预防性抗凝,使用低分子量肝素(LMWH)或未分级肝素(UFH)。如果有条件,我们建议使用 LMWH 而不是 UFH 进行静脉血栓栓塞(VTE)预防,以最大限度地减少对医护人员的风险。我们不建议在资源有限的低收入和中等收入国家(LMICs)中使用阿司匹林预防 VTE。因为证据有限,我们建议在资源有限的低收入和中等收入国家(LMICs)中不建议使用 COVID-19 患者的“强化”或“中等”预防。基于目前可用的证据,我们不建议在没有 VTE 临床怀疑的情况下开始经验性治疗性抗凝。如果存在化学预防的禁忌症,我们建议使用间歇充气压缩(IPC)设备或分级压缩袜(GCS)进行机械预防,以预防 COVID-19 患者的深静脉血栓形成。在资源有限的低收入和中等收入国家(LMICs)中,如果有很高的 VTE 临床怀疑,即使没有检测,我们建议根据当地临床实践指南开始对住院的 COVID-19 患者进行治疗性抗凝。如果有条件,我们建议使用 LMWH 而不是 UFH 或直接口服抗凝剂治疗 VTE,以最大限度地减少对医护人员的风险。在资源有限的低收入和中等收入国家(LMICs)中,如果无法使用或无法使用连续静脉 UFH 或 LMWH,我们建议对有高 VTE 临床怀疑的 COVID-19 住院患者使用固定剂量肝素,根据体重调整。我们建议在有条件和负担得起的情况下,在入院时进行 D-二聚体测量,以进行风险分层,或在怀疑 VTE 高时进行。对于资源有限的低收入和中等收入国家(LMICs)中的住院 COVID-19 患者,根据目前可用的证据,我们不建议使用连续 D-二聚体监测来启动治疗性抗凝。对于接受静脉内治疗性 UFH 的资源有限的低收入和中等收入国家(LMICs)中的住院 COVID-19 患者,我们建议根据当地实验室能力,连续监测部分凝血活酶时间或抗因子 Xa 水平。对于接受 LMWH 治疗的资源有限的低收入和中等收入国家(LMICs)中的住院 COVID-19 患者,我们建议不要连续监测抗因子 Xa 水平。我们建议对接受 VTE 治疗性抗凝的患者连续监测血小板计数,以评估出血或肝素诱导的血小板减少症的风险。

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