Cherif Honar, Karlsson Torbjörn
Department of Haematology, Uppsala University Hospital , Uppsala , Sweden.
Ups J Med Sci. 2014 Nov;119(4):350-3. doi: 10.3109/03009734.2014.955619. Epub 2014 Sep 4.
Patients with hereditary haemorrhagic telangiectasia (HHT) suffer from recurrent epistaxis and bleeding from gastrointestinal telangiectasias that occur despite otherwise normal haemostasis and result in iron deficiency anaemia with increasing severity. In advanced disease, anaemia may be severe, be irresponsive to iron supplementation, and may lead to red blood cell transfusion dependency.
We conducted a retrospective study at our Centre for Osler's Disease to evaluate the effectiveness of adding an erythropoiesis-stimulating agent (ESA) to intravenous iron supplementation in the management of anaemic HHT patients. Blood values and treatment parameters were collected for nine months before combination therapy (iron supplementation only) and 12 months during combination therapy (iron supplementation plus ESA).
Four patients received intravenous iron and an ESA with mean weekly doses of 126 mg and 17,300 units (U), respectively. Mean haemoglobin improved significantly during combination therapy, from 106 g/L to 119 g/L (p < 0.001).
Anaemia can be alleviated in patients with HHT who are irresponsive to intravenous iron supplementation, by addition of an ESA. The proposed mechanism behind the iron irresponsiveness is that the anaemia is caused by a combination of recurrent haemorrhage and anaemia of chronic disease.
遗传性出血性毛细血管扩张症(HHT)患者反复鼻出血,胃肠道毛细血管扩张出血,尽管止血功能正常,但随着病情加重会导致缺铁性贫血。在疾病晚期,贫血可能严重,对铁补充剂无反应,并可能导致依赖红细胞输血。
我们在奥氏病中心进行了一项回顾性研究,以评估在贫血HHT患者的管理中,在静脉补铁的基础上加用促红细胞生成素(ESA)的有效性。在联合治疗前(仅补铁)9个月和联合治疗期间(补铁加ESA)12个月收集血液值和治疗参数。
4例患者接受静脉补铁和ESA,平均每周剂量分别为126mg和17300单位(U)。联合治疗期间平均血红蛋白显著改善,从106g/L升至119g/L(p<0.001)。
对于静脉补铁无反应的HHT患者,加用ESA可缓解贫血。补铁无反应背后的机制推测是,贫血是由反复出血和慢性病贫血共同引起的。