颅内动脉瘤的蛛网膜下腔出血风险预测参数

颅内动脉瘤的蛛网膜下腔出血风险预测参数:远期随访研究

IntracranialAneurysmParametersforPredictingaFutureSubarachnoidHemorrhage:ALong-TermFollow-upStudy

背景:回顾性研究显示,动脉瘤形态学是蛛网膜下腔出血(SAH)的危险因素。

BACKGROUND:Retrospectivestudieshavesuggestedthataneurysmmorphologyisariskfactorforsubarachnoidhemorrhage(SAH).

目的:探讨未破裂颅内动脉瘤(UIAs)的各种形态学指标能否预测其破裂风险。

OBJECTIVE:Toinvestigatewhethervariousmorphologicalindicesofunrupturedintracranialaneurysms(UIAs)predictafuturerupture.

方法:选取自年至年确诊的全部UIAs患者例,进行前瞻性随访,直至患者发生SAH、死亡,或者持续保持联系。针对基于标准血管造影获得的UIA形态学指标,进行基线测量与多变量Cox比例风险回归分析校正,以便明确SAH的危险因素。

METHODS:AtotalofpatientswithUIAsdiagnosedbetweenandwerefollowedprospectivelyuntilSAH,death,orthelastcontact.MorphologicalUIAindicesfromstandardangiographicprojectionsweremeasuredatbaselineandadjustedinmultivariableCoxproportionalhazardsregressionanalysesforestablishedriskfactorsforSAH.

结果:在人年数的随访过程中,34例患者发生动脉瘤破裂。分别将动脉瘤体积、瘤体体积—瘤颈面积比和瓶颈因子作为连续变量,通过多变量分析预测动脉瘤破裂风险。动脉瘤破裂后,全部形态学指标均高于破裂前(P<0.01)。最终多变量分析显示,近期吸烟史(校正风险比2.50,95%CI1.03-6.10,P=0.)、动脉瘤位于前交通动脉(校正风险比4.28,95%CI1.38-13.28,P=0.)、年龄(负相关;校正风险比0.95/年,95%CI0.91-1.00,P=0.),UIA基线直径≥7mm(校正风险比2.68,95%CI1.16-6.21,P=0.)是动脉瘤破裂的独立危险因素。随访期间动脉瘤生长与吸烟(P<0.05)和SAH(P<0.)相关,而与动脉瘤形态学指标无关。

RESULTS:Duringafollow-upofperson-years,34patientssufferedfromananeurysmrupture.Inmultivariableanalyses,aneurysmvolume,volume-to-ostiumarearatio,andthebottleneckfactorseparatelyascontinuousvariablespredictedaneurysmrupture.Allthemorphologicalindiceswerehigher(P.01)aftertherupturethanbefore.Infinalmultivariableanalyses,currentsmoking(adjustedhazardratio2.50,95%CI1.03-6.10,P=.),locationintheanterior







































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