Abstract: Objective  To explore the effect of PDCA circulation management on complications in stroke patients.
Methods  Patients with stroke who were hospitalized in the Department of Neurology, Beijing Tiantan Hospital, Capital Medical University from January 1, 2021 to October 31, 2022 were enrolled. The control group consisted of patients who were hospitalized from January 1 to October 31, 2021 before the PDCA circulation management was implemented. The observation group consisted of patients who were under PDCA circulation management from January 1 to October 31, 2022. Demographic characteristics and clinical characteristics of the enrolled patients were recorded, and the incidence of stroke complications (pulmonary infection, deep vein thrombosis, urinary tract infection) during hospitalization was compared between the two groups. 
Results  1480 patients were included in this study, including 767 patients in the observation group and 713 patients in the control group. The mean age of enrolled patients was 71.9±13.6, and the male proportion was 75.3%. The observation group had a higher proportion of patients with previous atrial fibrillation (9.9% vs. 5.9%, P=0.004) and a lower proportion of patients with previous diabetes than that in the control group(30.0% vs. 34.9%, P=0.043). There were no significant differences in other baseline indicators between the two groups. In terms of stroke complications, the incidence of pulmonary infection (1.3% vs. 3.4%, P=0.008) and deep vein thrombosis (1.0% vs. 2.4%, P=0.045) during hospitalization in the observation group was lower than that in the control group, and the differences were statistically significant.
Conclusions  PDCA circulation management could reduce the incidence of pulmonary infection and deep vein thrombosis in stroke patients during hospitalization. 

Key words: Stroke; Complications; PDCA circulation management

摘要： 目的 探索PDCA循环管理模式对卒中患者住院期间并发症的影响。
方法 连续纳入2021年1月1日—2022年10月31日首都医科大学附属北京天坛医院血管神经病学病区的住院卒中患者作为研究对象。将2021年1月1日—10月31日，即PDCA循环管理模式实施前的住院患者设为对照组；2022年1月1日—10月31日，即实施PDCA循环管理模式后的住院患者设为观察组，进行回顾性分析。收集入组患者的人口学特征、临床特点等信息，比较两组患者住院期间卒中并发症（肺部感染、深静脉血栓、尿路感染）的发生率。 
结果 本研究共纳入1480例患者，其中观察组患者767例，对照组患者713例。入组患者平均年龄为（71.9±13.6）岁，男性比例为75.3%。观察组患者既往心房颤动病史的比例显著高于对照组（9.9% vs. 5.9%，P=0.004），既往糖尿病病史比例低于对照组（30.0% vs. 34.9%，P=0.043），两组其他基线指标差异无统计学意义。卒中并发症方面，观察组患者住院期间肺部感染（1.3% vs. 3.4%，P=0.008）及深静脉血栓（1.0% vs. 2.4%，P=0.045）的发生率均较对照组低。
结论 采用PDCA循环管理模式能够降低卒中患者住院期间肺部感染及深静脉血栓的发生率。

关键词: 卒中; 并发症; PDCA循环管理模式