Heart:**阶段射血分数在主动脉狭窄中的决定因素和预后价值

2020-06-24 MedSci原创 MedSci原创

EF1可量化主动脉瓣狭窄的早期、潜在可逆性收缩功能障碍,与总体后负荷和心肌纤维化有关,并且是AVR的独立预测因素。

第一阶段射血分数(EF1)是早期左心室收缩功能障碍的一项新指标。近日,心脏病领域权威杂志Heart上发表了一篇研究文章,研究人员旨在调查EF1的决定因素及其在主动脉瓣狭窄中的预后价值。

研究人员回顾性地分析了超声心动图/血管磁共振队列研究参与者的EF1,该研究招募了2012年至2014年期间的主动脉瓣狭窄(峰值主动脉速度≥2 m/s)患者。构建线性回归模型以评估与EF1相关的变量。研究人员使用Cox比例风险确定EF1对主动脉瓣置换(AVR,根据国际准则作为临床治疗的一部分)或死亡的预测能力。

149名参与者(男性为69.8%,70(65-76)岁,平均梯度33(21-42)mmHg)的总随访为238029人次每日。尽管射血分数正常(67%(62%–71%)),但有67名(45%)参与者的基线EF1较低(<25%)。EF1低的患者主动脉瓣狭窄更为严重(平均梯度为39(34-45)mmHg与24(16-35)mmHg,p<0.001)和心肌纤维化程度更明显(细胞外体积(iECV)(24.2(19.6– 28.7)mL/m2 vs. 20.6(16.8–24.3)mL/m2,p=0.002;晚期钆增强(LGE)发生率52%vs. 20%,p<0.001)。Zvai、ECV和梗死LGE是EF1的独立预测因子。AVR后EF1改善(AVR后有EF1的患者n=57,基线16(12–24)vs. 随访27%(22%–31%);p<0.001)。基线低EF1是AVR/死亡的独立预测因子(HR为5.6,95%CI为3.4至9.4)。

由此可见,EF1可量化主动脉瓣狭窄的早期、潜在可逆性收缩功能障碍,与总体后负荷和心肌纤维化有关,并且是AVR的独立预测因素。

原始出处:

Rong Bing.et al.Determinants and prognostic value of echocardiographic first-phase ejection fraction in aortic stenosis.heart.2020.http://dx.doi.org/10.1136/heartjnl-2020-316684

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    2021-10-30 a little

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    2020-06-26 zhaojie88
  5. [GetPortalCommentsPageByObjectIdResponse(id=1065208, encodeId=cc5b106520832, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210711/814c6321611e4ae39d5353ffccdc06c9/e1b7045038ba42eea0c8cadcb0d9c205.jpg, createdBy=5bcf5546314, createdName=a little, createdTime=Sat Oct 30 09:13:11 CST 2021, time=2021-10-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1671041, encodeId=bd3816e1041be, content=<a href='/topic/show?id=bd58310846e' target=_blank style='color:#2F92EE;'>#决定因素#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=31084, encryptionId=bd58310846e, topicName=决定因素)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=智慧医人, createdTime=Mon Sep 14 21:07:52 CST 2020, time=2020-09-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1315162, encodeId=159c131516253, content=<a href='/topic/show?id=c115231e9dc' target=_blank style='color:#2F92EE;'>#主动脉狭窄#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23179, encryptionId=c115231e9dc, topicName=主动脉狭窄)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2f8f432, createdName=longerg, createdTime=Fri Jun 26 14:07:52 CST 2020, time=2020-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1357541, encodeId=e238135e5414f, content=<a href='/topic/show?id=b0702e84b9' target=_blank style='color:#2F92EE;'>#ART#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2784, encryptionId=b0702e84b9, topicName=ART)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Fri Jun 26 14:07:52 CST 2020, time=2020-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1385239, encodeId=9394138523979, content=<a href='/topic/show?id=dc121001e22d' target=_blank style='color:#2F92EE;'>#预后价值#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100172, encryptionId=dc121001e22d, topicName=预后价值)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=70fe497, createdName=paperyu, createdTime=Fri Jun 26 14:07:52 CST 2020, time=2020-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1415675, encodeId=51ef14156e5e0, content=<a href='/topic/show?id=04812314540' target=_blank style='color:#2F92EE;'>#主动脉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=23145, encryptionId=04812314540, topicName=主动脉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=77603112682, createdName=circumcision, createdTime=Fri Jun 26 14:07:52 CST 2020, time=2020-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1496921, encodeId=23391496921e9, content=<a href='/topic/show?id=217b33259df' target=_blank style='color:#2F92EE;'>#动脉狭窄#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=33259, encryptionId=217b33259df, topicName=动脉狭窄)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b4ae9287436, createdName=piaojinhua, createdTime=Fri Jun 26 14:07:52 CST 2020, time=2020-06-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1563322, encodeId=440d15633229f, content=<a href='/topic/show?id=f69d864413' target=_blank style='color:#2F92EE;'>#HEART#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8644, encryptionId=f69d864413, topicName=HEART)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=80d715270048, createdName=slcumt, createdTime=Fri Jun 26 14:07:52 CST 2020, time=2020-06-26, status=1, ipAttribution=)]
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    2020-06-26 slcumt

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