选取北京大学深圳医院2010年乳腺癌手术病例为对照组，2011-2014年乳腺癌手术临床路径病例为实验组，以变异分析提供的证据为基础，实施多个周期的PDCA循环，对乳腺癌临床路径进行质量改进。结果显示，通过PDCA循环，乳腺癌临床路径的实施效果得到明显改善：乳腺癌临床路径总变异率从64.23%下降到14.28%，变异频次从平均每例4.16次下降到2.26次；平均住院日从11.23天下降到8.29天；抗菌药物使用率从77.69%下降至8.70%；但是手术病人人均医疗费用从14976.2元增加到17357元。%In the survey, breast cancer surgery cases were selected in 2010 as the control group in Shenzhen Hospital of Peking University, while the breast cancer surgery by clinical pathway were selected as the experimental group from 2011 to 2014. The quality of clinical pathway of curing breast cancer was improved based on the evidence provided by variation analysis, through multiple periods of PDCA cycle implementation. The results showed that through the PDCA cycle, the effect of the implementation of clinical pathway of curing breast cancer was significantly improved: the total variation rate of breast cancer with clinical path decreased from 64.23% to 14.28%, and the variation frequency dropped from average 4.16 times per case to 2.26 times per case; the number of average hospitalized days decreased from 11.23 days to 8.29 days; the usage of anti-bacteria drug from declined 77.69% to 8.70%;but the medical expenditure per capita in surgical patients increased from 14976.2 yuan to 17357 yuan.
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