NEJM读者来信表现为ST段抬高心
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MesentericIschemiaMimickingST-SegmentElevationMyocardialInfarctionYen-TingYeh,Chung-MingTu,Yen-WenWuNEnglJMed05;7:-78DOI:0./NEJMc致编辑TotheEditor:一名6岁男性患者因呕吐及水样便天,上腹部疼痛个小时到急诊就诊。患者有7年高血压、糖尿病和高脂血症病史。就诊时,血压77/5mmHg,脉搏9bpm,体温5.5°C。体检发现,腹部平软没有腹膜炎体征。ECG显示下壁导联Q波形成伴ST段抬高(图A)。诊断为下壁ST段抬高型心梗(STEMI)。急诊冠状动脉造影发现左前降支的第一对角支70%狭窄。右冠脉和左回旋支正常。床旁心脏超声显示左室收缩良好,没有局限性室壁运动异常或心尖部气球样变(apicalballooning)。
A6-year-oldmanpresentedtotheemergencydepartmentwithepigastricpainlastinghours,precededbyvomitingandwaterydiarrheafordays.Hehada7-yearhistoryofhypertension,diabetesmellitus,anddyslipidemia.Atthetimeofpresentation,hisbloodpressurewas77/5mmHg,hispulserate9beatsperminute,andhisbodytemperature5.5°C.Onexamination,hisabdomenwasflatandsoft,withoutperitonealsigns.Anelectrocardiogram(ECG)showedQwaveswithST-segmentelevationintheinferiorleads(Fig.A).TheprovisionaldiagnosiswasST-segmentelevationmyocardialinfarction(STEMI)oftheinferiorwall.Emergencycoronaryangiographyrevealeda70%stenosisinthefirstdiagonalbranchoftheleftanteriordescendingcoronaryartery.Therightcoronaryarteryandleftcircumflexcoronaryarterywerepatent.Bedsideechocardiographyrevealedpreservedleft-ventricularcontractilitywithoutregionalwall-motionabnormalitiesorapicalballooning.
腹部CT显示升结肠与横结肠肠壁囊样积气征(pneumatosisintestinalis)。门静脉肝内段的多个分支以及肠系膜上静脉及其分支内可见气体(附录中图S)。行急诊剖腹探查术,末段回肠、升结肠及横结肠可见缺血性改变(附录中图S)。遂行右半截肠切除,病理检查发现切除的回肠和结肠弥漫性黏膜脱落,绒毛变钝,膜样渗出,跨壁炎症,基质水肿,且有浆膜炎表现;这些表现符合缺血性结肠炎。术后复查ECG显示ST段抬高消失(图B)。就诊时及、6、小时肌钙蛋白T的水平分别为0.08,0.07,0.和0.ng/ml(医院实验室的99%百分位上限为0.04ng/ml)。术后恢复良好,0天后患者出院。
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