Division of Hematology and Oncology, The Brooklyn Hospital Center, 121 Dekalb Avenue, Brooklyn, NY 11201, USA.
Int J Hematol. 2012 Oct;96(4):513-5. doi: 10.1007/s12185-012-1161-3. Epub 2012 Aug 15.
We report a case of heparin-induced thrombocytopenia with thrombosis type 2 (HITT 2) that was first complicated by intracerebral hemorrhage (ICH) and later by deep venous thrombosis (DVT). HITT 2 was initially managed conventionally with argatroban, which was stopped when ICH was discovered. The size of ICH increased despite attempts to increase platelet count by platelet transfusions. At this point of the clinical dilemma, plasma exchange was utilized effectively to recover the platelet count and deter ICH progression. The clinical course was later complicated by DVT, for which fondaparinux was given. This case represents a rare clinical scenario of HITT 2 resulting in progressive ICH that excluded the use of antithrombotic agents as part of HITT therapy. We believe that the use of plasmapheresis as a salvage procedure in such situations is effective and life-saving. Physicians should be aware of plasmapheresis as a therapeutic option in HITT 2 in cases in which anticoagulation is contraindicated.
我们报告了一例肝素诱导的血小板减少症伴血栓形成 2 型(HITT 2)病例,该病例最初并发脑出血(ICH),随后并发深静脉血栓形成(DVT)。HITT 2 最初采用常规方法用阿加曲班治疗,但当发现 ICH 时停止了治疗。尽管尝试通过血小板输注增加血小板计数,但 ICH 的大小仍在增加。在这种临床困境中,采用血浆置换有效地恢复了血小板计数并阻止了 ICH 的进展。此后,该病例又并发了 DVT,给予了磺达肝素钠进行治疗。该病例代表了一种罕见的临床情况,即 HITT 2 导致进行性 ICH,排除了将抗血栓药物作为 HITT 治疗的一部分。我们认为,在这种情况下,使用血浆置换作为抢救程序是有效和救命的。在抗凝治疗禁忌的情况下,医生应将血浆置换作为 HITT 2 的治疗选择之一。