阵发性夜间血红蛋白尿
医学
血栓形成
胃肠病学
华法林
伊库利珠单抗
累积发病率
队列
静脉血栓形成
外科
内科学
儿科
免疫学
心房颤动
抗体
补体系统
作者
Carmelo Gurnari,Hussein Awada,Simona Pagliuca,Danai Dima,Fauzia Ullah,Naomi Kawashima,Yasuo Kubota,Ceylan Çolak,Valeria Visconte,Bhumika J. Patel,Vikram Dhillon,Naimisha Marneni,Suresh Kumar Balasubramanian,Ashwin Kishtagari,Taha Bat,Jaroslaw P. Maciejewski
出处
期刊:Blood
[American Society of Hematology]
日期:2024-03-21
卷期号:144 (2): 145-155
被引量:1
标识
DOI:10.1182/blood.2024023988
摘要
Abstract Thrombophilia is one of the principal features of paroxysmal nocturnal hemoglobinuria (PNH) and constitutes the main cause of disease morbidity/mortality. Anticomplement treatment has revolutionized the natural history of PNH, with control of the hemolytic process and abolition of thrombotic events (TEs). However, no guidelines exist for the management of thromboembolic complications in this setting, with type and duration of anticoagulation depending on individual practices. Besides, a scarcity of data is present on the efficacy of direct oral anticoagulants (DOACs). Herein, we accrued a large real-world cohort of patients with PNH from 4 US centers to explore features, predictors of TE, and anticoagulation strategies. Among 267 patients followed up for a total of 2043 patient-years, 56 (21%) developed TEs. These occurred at disease onset in 43% of cases, involving more frequently the venous system, typically as Budd-Chiari syndrome. Rate of TEs was halved in patients receiving complement inhibitors (21 vs 40 TEs per 1000 patient-years in untreated cases, with a 2-year cumulative incidence of thrombosis of 3.9% vs 18.3%, respectively), and varied according to PNH granulocytes and erythrocytes clone size, type, disease activity parameters, as well as number (≥2 mutations, or less) and variant allelic frequency of PIGA mutations. Anticoagulation with warfarin (39%), DOACs (37%), and low-molecular weight heparin (16%) was administered for a median of 29 months (interquartile range [IQR], 9-61.8). No thrombotic recurrence was observed in 19 patients treated with DOACs at a median observation of 17.1 months (IQR, 8.9-45) whereas 14 cases discontinued anticoagulation without TE recurrence at a median time of 51.4 months (IQR, 29.9-86.8).
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