Ramakrishna R, Rehman A, Ramakrishna S, Alexander W, Yeo W W
Southern Haematology and Cancer Research Institute, University of Wollongong, Wollongong, New South Wales, Australia.
Graduate School of Medicine, University of Wollongong, Wollongong, New South Wales, Australia.
Intern Med J. 2015 Jul;45(7):718-24. doi: 10.1111/imj.12794.
In patients with chronic idiopathic thrombocytopenic purpura (cITP), the platelet count tends to be quite variable and, in the majority of cases, specific therapy is not warranted on a regular basis. However, patients with low platelet count (<30 nL) or with bleeding complications would require therapy, such as prednisolone, intravenous immunoglobulin infusions, splenectomy and/or immunosuppression. Romiplostim, a thrombopoietin agonist, has also proven to be useful in improving platelet counts. cITP can be associated with bleeding complications perioperatively. As such, a higher platelet count is warranted (approximately 80 nL), particularly for invasive surgeries, such as orthopaedic surgery, cardio-thoracic surgery, head and neck surgery and abdominal surgery, where risk of bleeding is quite high already.
The aim of this study is to evaluate the safety and efficacy of short-term use of romiplostim, perioperatively.
Patients with chronic ITP requiring major surgical interventions were enrolled in the study. Patients with malignancies or myelodysplastic syndromes, major bleeding disorders, under 18 years of age or pregnancy were excluded.
This study has shown that the use of romiplostim is safe and effective in improving platelet counts preoperatively and that this could achieve excellent haemostasis, with no associated bleeding complications or rebound thrombocytopenia. A larger study involving multiple centres is required to verify these findings.
在慢性特发性血小板减少性紫癜(cITP)患者中,血小板计数往往变化很大,并且在大多数情况下,通常不需要进行特定治疗。然而,血小板计数低(<30 nL)或有出血并发症的患者需要进行治疗,如泼尼松龙、静脉注射免疫球蛋白、脾切除术和/或免疫抑制。罗米司亭是一种血小板生成素激动剂,已被证明对提高血小板计数有效。cITP可能与围手术期出血并发症相关。因此,需要较高的血小板计数(约80 nL),特别是对于骨科手术、心胸外科手术、头颈外科手术和腹部手术等高风险出血的侵入性手术。
本研究的目的是评估围手术期短期使用罗米司亭的安全性和有效性。
纳入需要进行重大手术干预的慢性ITP患者。排除患有恶性肿瘤或骨髓增生异常综合征、严重出血性疾病、18岁以下或怀孕的患者。
本研究表明,使用罗米司亭术前提高血小板计数是安全有效的,并且可以实现良好的止血效果,无相关出血并发症或血小板减少反弹。需要进行一项涉及多个中心的更大规模研究来验证这些发现。