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中国医疗团队近日进行危重症确诊患者的肺部活体研究发现，患者肺部呈古铜色，出现大量肺部纤维化、细支气管壁坏死、右肺外层出血性坏死，或是导致患者出现严重呼吸衰竭，及重症患者死亡的主要原因。

据中国媒体报道，中科院院士王福生教授带领的医疗团队是于日前，进行危重症确诊患者的肺部活体研究，从组织中进行病理分析。

据报道，研究样本来自一名66岁患者，于1月4日从湖北武汉返回广东深圳，随后出现高烧和咳嗽症状，患有高血压。

“他的胸部X光片检查显示，两肺部有多发阴影，并出现严重急性呼吸窘迫症候群（ARDS）、呼吸衰竭，随后医生为他进行肺部移植手术后，进行活体病理研究。”

研究结果显示，肺部出现弥漫性充血，多为点状出血和部分肺叶边缘坏死，支气管被粘液和出血渗出物覆盖；除肺部纤维化外，亦有部分透明变性，出血性梗死、小血管增生，血管壁增厚，管腔狭窄闭塞。惟未见有其他细菌、真菌感染。

研究团队认为，肺部组织在显微镜下，出现出血性坏死的位置是右肺外缘，可推测是重症患者的主要死亡原因和首先出现病变的原因，亦可解释患者为何有急性肺功能障碍。

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