Department of Cardiovascular Diseases, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Department of Cardiovascular Surgery, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Cardiovasc Hematol Disord Drug Targets. 2024;24(3):190-195. doi: 10.2174/011871529X313367240722040919.
Subacute Bacterial Endocarditis (SBE) is a slowly developing type of infective endocarditis. Aneurysm is more common in this type of endocarditis. Currently, SBE is an uncommon cause of unexplained fever (FUO) because rapid diagnostic capabilities, such as echocardiography, have improved. Despite echocardiography, endocarditis and valvular aneurysm were missed in our patient due to the location and special shape of the aneurysm near the annulus.
We present a case of SBE resulting in an isolated ruptured mycotic mitral valve aneurysm in a patient on dialysis. Mycotic mitral valve aneurysm is an uncommon and serious complication of infective endocarditis, particularly subacute endocarditis.
In order to diagnose this complication, there should be clinical suspicion in the presence of severe regurgitation without any cause, and a detailed echocardiography should be performed.
亚急性细菌性心内膜炎（SBE）是一种发展缓慢的感染性心内膜炎。在这种类型的心内膜炎中，动脉瘤更为常见。由于快速诊断能力（如超声心动图）的提高，目前 SBE 已不常见引起不明原因发热（FUO）的原因。尽管进行了超声心动图检查，但由于动脉瘤靠近瓣环的位置和特殊形状，我们的患者仍漏诊了心内膜炎和瓣叶动脉瘤。
我们报告了一例在透析患者中发生孤立性破裂性感染性二尖瓣动脉瘤的 SBE 病例。感染性二尖瓣动脉瘤是感染性心内膜炎，特别是亚急性心内膜炎的一种罕见且严重的并发症。
为了诊断这种并发症，在没有任何原因的严重反流的情况下，应存在临床怀疑，并且应进行详细的超声心动图检查。
