Washington Hospital Center, Washington, DC 20010, USA.
Stroke. 2011 Aug;42(8):2217-21. doi: 10.1161/STROKEAHA.111.613828. Epub 2011 Jun 30.
Some prior studies have shown that racial disparities exist in intravenous tissue plasminogen activator (tPA) use for acute ischemic stroke. We sought to determine whether race was associated with tPA treatment for stroke in a predominantly black urban population.
Systematic chart abstraction was performed on consecutive hospitalized patients with ischemic stroke from all 7 acute care hospitals in the District of Columbia from February 1, 2008, to January 31, 2009.
Of 1044 patients with ischemic stroke, 74% were black, 19% non-Hispanic white, and 5% received intravenous tPA. Blacks were one third less likely than whites to receive intravenous tPA (3% versus 10%, P<0.001). However, blacks were also less likely than whites to present within 3 hours of symptom onset (13% versus 21%, P=0.004) and also less likely to be tPA-eligible (5% versus 13%, P<0.001). Of those who presented within 3 hours, blacks were almost half as likely to be treated with intravenous tPA than whites (27% versus 46%, P=0.023). The treatment rate for tPA-eligible patients was similar for blacks and whites (70% versus 76%, P=0.62).
In this predominantly black urban population hospitalized for acute ischemic stroke, blacks were significantly less likely to be treated with intravenous tPA due to contraindications to treatment, delayed presentation, and stroke severity. Effective interventions designed to increase treatment in this population need to focus on culturally relevant education programs designed to address barriers specific to this population.
一些先前的研究表明,在接受急性缺血性脑卒中静脉组织型纤溶酶原激活剂(tPA)治疗方面存在种族差异。我们旨在确定在以黑人为主要人口的城市中,种族是否与脑卒中的 tPA 治疗相关。
从 2008 年 2 月 1 日至 2009 年 1 月 31 日,对来自哥伦比亚特区的所有 7 家急性护理医院的连续住院脑卒中患者进行系统的图表摘录。
在 1044 例缺血性脑卒中患者中,74%为黑人,19%为非西班牙裔白人,5%接受了静脉内 tPA 治疗。黑人接受静脉内 tPA 的可能性比白人低三分之一(3%对 10%,P<0.001)。然而,与白人相比,黑人也更不可能在症状发作后 3 小时内就诊(13%对 21%,P=0.004),也更不可能符合 tPA 治疗标准(5%对 13%,P<0.001)。在 3 小时内就诊的患者中,黑人接受静脉内 tPA 治疗的可能性比白人低近一半(27%对 46%,P=0.023)。符合 tPA 治疗标准的患者的 tPA 治疗率在黑人和白人之间相似(70%对 76%,P=0.62)。
在这个以黑人为主要人口的急性缺血性脑卒中住院患者中,由于治疗禁忌、就诊延迟和卒中严重程度,黑人接受静脉内 tPA 治疗的可能性显著降低。为了增加该人群的治疗效果,需要设计针对该人群的文化相关教育计划,以解决具体的障碍。