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Abstract：
OBJECTIVE: The ERCP volume in developed countries has decreased recently, whereas the ERCP trend is unknown in developing countries. This study aimed to evaluate the ERCP development in China between 2006 and 2012.
METHODS: All hospitals performing ERCP in mainland China in 2012 participated in an online survey. Data on ERCP infrastructure, volume, indication, and adverse events were collected and compared with those in a previous national survey and in developed countries.
RESULTS: From 2006 to 2012 the number of hospitals performing ERCP in China increased from 470 to 1156. The total ERCP volume increased from 63,787 to 195,643, of which >95% were therapeutic. The ERCP rate in China (14.4 per 100,000 inhabitants) in 2012 was still much lower than that in developed countries. There was significant imbalance between different regions (1.3-99.1 per 100,000 inhabitants). The median ERCP volume per hospital decreased from 80 (interquartile range [IQR], 31-150) in 2006 to 52 (IQR, 20-146) in 2012. The median volume of the 686 hospitals that started ERCP after 2006 was 31.5 (IQR, 11-82). The post-ERCP adverse event rate in 2012 was comparable between hospitals in terms of volume (≥500 or <500 per year: 5.8% vs 5.6%) and practice durations (starting ERCP before or after 2006: 5.5% vs 5.6%).
CONCLUSIONS: ERCP has developed considerably in China in recent years. Despite low annual volume, the hospitals starting ERCP after 2006 have acceptable adverse event rates and will be promising and important sources of ERCP development in China.
METHODS: All hospitals performing ERCP in mainland China in 2012 participated in an online survey. Data on ERCP infrastructure, volume, indication, and adverse events were collected and compared with those in a previous national survey and in developed countries.
RESULTS: From 2006 to 2012 the number of hospitals performing ERCP in China increased from 470 to 1156. The total ERCP volume increased from 63,787 to 195,643, of which >95% were therapeutic. The ERCP rate in China (14.4 per 100,000 inhabitants) in 2012 was still much lower than that in developed countries. There was significant imbalance between different regions (1.3-99.1 per 100,000 inhabitants). The median ERCP volume per hospital decreased from 80 (interquartile range [IQR], 31-150) in 2006 to 52 (IQR, 20-146) in 2012. The median volume of the 686 hospitals that started ERCP after 2006 was 31.5 (IQR, 11-82). The post-ERCP adverse event rate in 2012 was comparable between hospitals in terms of volume (≥500 or <500 per year: 5.8% vs 5.6%) and practice durations (starting ERCP before or after 2006: 5.5% vs 5.6%).
CONCLUSIONS: ERCP has developed considerably in China in recent years. Despite low annual volume, the hospitals starting ERCP after 2006 have acceptable adverse event rates and will be promising and important sources of ERCP development in China.
摘要：
目的：最近发达国家的ERCP数量有所下降，而发展中国家的ERCP趋势未知。本研究旨在评估2006年至2012年中国ERCP的发展情况。
方法：2012年中国大陆实施ERCP的所有医院都参与了一项在线调查。ERCP基础设施数据,volume,指示,收集不良事件,并与之前的国家调查和发达国家的不良事件进行比较.
结果：从2006年到2012年，中国实施ERCP的医院数量从470家增加到1156家。总ERCP体积从63,787增加到195,643,其中>95%是治疗性的。2012年中国的ERCP率（每10万居民14.4）仍远低于发达国家。不同地区之间存在显着的不平衡（每100,000居民1.3-99.1）。每家医院的ERCP体积中位数从80下降(四分位数间距[IQR]，31-150)，2006年至52年(IQR，20-146）在2012年。2006年后开始ERCP的686家医院的中位容量为31.5(IQR，11-82).2012年ERCP后不良事件发生率在医院数量（每年≥500或<500：5.8％vs5.6％）和治疗持续时间（2006年之前或之后开始ERCP：5.5％vs5.6％）方面具有可比性。
结论：近年来ERCP在中国有了很大的发展。尽管年产量低，2006年后开始ERCP的医院不良事件发生率可接受,将是中国ERCP发展的重要来源.
方法：2012年中国大陆实施ERCP的所有医院都参与了一项在线调查。ERCP基础设施数据,volume,指示,收集不良事件,并与之前的国家调查和发达国家的不良事件进行比较.
结果：从2006年到2012年，中国实施ERCP的医院数量从470家增加到1156家。总ERCP体积从63,787增加到195,643,其中>95%是治疗性的。2012年中国的ERCP率（每10万居民14.4）仍远低于发达国家。不同地区之间存在显着的不平衡（每100,000居民1.3-99.1）。每家医院的ERCP体积中位数从80下降(四分位数间距[IQR]，31-150)，2006年至52年(IQR，20-146）在2012年。2006年后开始ERCP的686家医院的中位容量为31.5(IQR，11-82).2012年ERCP后不良事件发生率在医院数量（每年≥500或<500：5.8％vs5.6％）和治疗持续时间（2006年之前或之后开始ERCP：5.5％vs5.6％）方面具有可比性。
结论：近年来ERCP在中国有了很大的发展。尽管年产量低，2006年后开始ERCP的医院不良事件发生率可接受,将是中国ERCP发展的重要来源.
