We report an autopsy case of an 80-year-old woman who underwent left atrial appendage closure with a WATCHMAN (Boston Scientific, St. Paul, MN, USA) device. This is the first report of histologic assessment following left atrial appendage closure with a WATCHMAN device at 3 months. Gross and histopathological examinations revealed neoendocardial coverage of the WATCHMAN device. Partial endothelialization was verified by CD34 staining; however, it remains unclear when complete endothelialization is likely to occur.

中文翻译：

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左心耳封堵器的尸检结果

我们报告了一名 80 岁妇女的尸检案例，她使用 WATCHMAN（波士顿科学，圣保罗，明尼苏达州，美国）设备进行了左心耳封堵术。这是第一份使用 WATCHMAN 装置封堵左心耳后 3 个月的组织学评估报告。大体和组织病理学检查显示 WATCHMAN 装置有新的心内膜覆盖。CD34染色证实部分内皮化；然而，尚不清楚何时可能发生完全内皮化。