感染性颅内动脉瘤1例并文献复习

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【中图分类号】 R651.12 【文献标志码】 B 【文章编号】 1672-7770（2026）01-0109-05

Abstract：ObjectiveTo summarize the imaging characteristics，diagnosis and treatment methods ruptured infectious intracranial aneurysms（IIA）complicated with subarachnoid hemorrhage（SAH）.MethodsThe clinical symptoms，imaging signsand treatment planonepatient with ruptured IIAcomplicated with SAHadmitted in March 2020 were analyzed retrospectively，and the relevant literature were reviewed.ResultsThe patient wasamiddleagedmale，withmain clinical manifestations severeheadacheaccompaniedby fever andahistory infective endocarditis.Digital subtraction angiography（DSA）revealed ananeurysmaround theright corpuscallosum.Ten daysafterendovascular interventional therapy，the patientunderwent valve-relatedsurgeryin thecardiac surgery department.The patient recovered wellafter surgery.Telephone folow-up showed that he could takecare himself indailylife，hadretumedto work，with a Glasgow outcome scale（GOS）score 5，andno complications such as neurological deficit，cerebral infarction or cerebral hemorhageoccurred.ConclusionsIIAare relativelyrare， which arecaused byinfectious diseases leading tothe formation aneurysms inintracranial arteries.Earlydiagnosis isdiffcult.DSA is the gold standard fordiagnosis.Treatment options includeconservative treatment，craniotomy with clippingandendovascular interventional therapy.The mostreasonable diagnosisand treatmentplan has notyetbeen unified and should be determined according to the specific conditions the patient.

Keywords：infectious intracranial aneurysm；endovascular interventional therapy；infective endocarditis; digital subtraction angiography

感染性颅内动脉瘤（infectiousintracranialaneurysm，IIA）是一类少见因局部或全身感染性疾病导致颅内动脉血管壁破坏，进而形成的动脉瘤样突起，其在颅内动脉瘤中占比约为0.7%～5.4%[1] ，最常见的致病因素为急性或亚急性感染性心内膜炎引发的细菌性栓塞，IIA常隐匿起病，解剖分布多见于大脑前、中及后动脉的外周分支[2]，在瘤体破裂前，患者通常无明显临床表现，这也导致其实际发病率容易被低估。（剩余10190字）