The aortic chordae tendineae strands are suggested to be embryonic remnants of the cusp formation process. We herein describe a 70-year-old male who was admitted to our hospital for shortness of breath and chest tightness. During echocardiographic examination, severe aortic regurgitation with a ruptured fibrous strand was detected. Moreover, another fibrous strand was found by three-dimensional transesophageal echocardiography (TEE). To our knowledge, this is the first literature review of aortic chordae tendineae strands, including diagnosis, management, and mechanisms of aortic regurgitation due to such informal strands.

中文翻译：

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主动脉腱索伴明显主动脉瓣返流病例报告及文献复习

主动脉腱索被认为是瓣叶形成过程的胚胎残余。我们在此描述了一名 70 岁男性，他因气短和胸闷入院。在超声心动图检查中，检测到严重的主动脉瓣关闭不全和纤维束断裂。此外，通过三维经食道超声心动图 (TEE) 发现了另一条纤维束。据我们所知，这是对主动脉腱索的第一篇文献综述，包括诊断、管理和由于这种非正式链引起的主动脉瓣关闭不全的机制。