Department of Healthcare Administration and Medical Informatics, College of Health Sciences, Kaohsiung Medical University.
Department of Medical Research, Kaohsiung Medical University Hospital.
QJM. 2019 Jul 1;112(7):489-495. doi: 10.1093/qjmed/hcz051.
BACKGROUND: Kidney transplantation (KT) has been found to reduce cardiovascular events and mortality in chronic dialysis patients. There is little data, however, regarding the risk reduction of cerebrovascular events after KT in Asian populations. This study evaluates the risk of cerebrovascular events after KT in Taiwan. METHODS: Tapping Taiwan's National Health Insurance claims data of patients with a diagnosis of end-stage renal disease (ESRD), we enrolled all KT recipients from 1999 to 2011 (n = 2908). For each KT patient, four controls (patients also diagnosed with ESRD) without KT were propensity matched by birth date, sex, selected comorbidities and duration of dialysis. All subjects were followed to the end of 2011. RESULTS: The incidence rate for stroke in the KT recipients and comparison group were 52.63 and 137.26 per 10 000 person-years, respectively. After adjustment for age, gender and comorbidities with competing mortality, KT recipients had 60% reduction in all kinds of stroke, compared to those who did not receive procedure. They were found to have a 48 and 74% reduction in ischemic and hemorrhagic stroke risk, respectively. Subgroup analyses also showed similar trends in the improvement of stroke after KT. While elderly patients, men, and those with diabetes, hypertension and coronary artery disease are at increased risk for stroke, our log-rank test revealed those that received KT had significantly lower cumulative incidence rates of stroke than those that did not (P < 0.001). CONCLUSIONS: KT was associated with reduced risk of new onset stroke in chronic dialysis patients in Taiwan.
背景:肾移植(KT)已被发现可降低慢性透析患者的心血管事件和死亡率。然而,关于亚洲人群 KT 后脑血管事件风险降低的数据很少。本研究评估了台湾 KT 后脑血管事件的风险。
方法:利用台湾全民健康保险理赔数据中终末期肾病(ESRD)患者的诊断信息,我们纳入了 1999 年至 2011 年期间所有接受 KT 的患者(n=2908)。对于每一位 KT 患者,我们通过出生日期、性别、选定的合并症和透析时间匹配了四名未接受 KT 的对照组患者(也被诊断为 ESRD 的患者)。所有患者均随访至 2011 年底。
结果:在 KT 受者和对照组中,中风的发生率分别为 52.63 和 137.26 例/10000 人年。在调整了年龄、性别和与竞争死亡相关的合并症后,与未接受该程序的患者相比,KT 受者的所有类型中风风险降低了 60%。他们发现缺血性中风和出血性中风的风险分别降低了 48%和 74%。亚组分析也显示了 KT 后中风改善的类似趋势。虽然老年患者、男性以及患有糖尿病、高血压和冠心病的患者中风风险增加,但我们的对数秩检验显示,接受 KT 的患者中风的累积发生率明显低于未接受 KT 的患者(P<0.001)。
结论:在台湾,慢性透析患者的 KT 与新发中风风险降低相关。
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