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Diffuse Alveolar Hemorrhage

delete2025-11-01
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PRE
AI
J
John Murray
S
S O’Brien
P
Patrick Mitchell *
DOI:10.1055/a-2725-7274delete
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摘要

摘要

En 中文
弥漫性肺泡出血(DAH)是一种危及生命的临床综合征,其特征为肺微循环出血进入肺泡腔。其典型表现为急性呼吸衰竭、贫血和弥漫性放射学浸润影。值得注意的是,咯血在多达半数病例中可能缺如。病因多样,包括系统性血管炎、结缔组织疾病、凝血功能障碍、药物、感染、血流动力学紊乱和特发性过程。组织病理学上,DAH表现为三种重叠模式之一:肺毛细血管炎、单纯肺泡出血或弥漫性肺泡损伤,这些模式有助于指导诊断和治疗方案。毛细血管炎通常与免疫介导的血管炎相关,如抗中性粒细胞胞浆抗体相关血管炎和抗肾小球基底膜疾病,通常需要及时且积极的免疫抑制治疗。相比之下,单纯出血往往反映凝血功能障碍或血流动力学因素,而弥漫性肺泡损伤与毒素、感染或急性呼吸窘迫综合征相关。鉴于DAH院内死亡率高达20%以上,及时识别和系统评估对于优化预后至关重要。诊断依赖于影像学、支气管肺泡灌洗(显示渐进性血性回吸液和含铁血黄素巨噬细胞)以及对血管炎、感染和凝血功能障碍的针对性实验室评估。治疗包括通过补充氧气或通气支持稳定患者、谨慎避免呼吸机相关肺损伤以及病因导向治疗。在免疫介导病例中,大剂量糖皮质激素、细胞毒性药物和利妥昔单抗仍是核心治疗,而血浆置换适用于抗肾小球基底膜疾病和严重难治性咯血。抗菌治疗、停用相关药物、止血干预以及在特定情况下采用体外支持等措施也可能需要。本文综述了DAH的组织病理学谱系、病因学分类、诊断算法和循证治疗策略,强调早期多学科管理对于改善生存率和功能恢复的重要性。
Keyword:
diffuse alveolar hemorrhage
vasculitis
hemoptysis
immunosuppressive therapy
pulmonary capillaritis

期刊

S
Seminars in Respiratory and Critical Care Medicine
IF:
2.7
论文数:
56
被引数:
3.2K

机构

T
Trinity College Dublin
学者数:
2.4W
论文数: 1.9W
被引数: 2.7W
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引用论文

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