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国际首部冠脉微血管疾病中国专家共识发布

2017-04-08 佚名 中国循环杂志

昨日,《冠状动脉微血管疾病诊断和治疗的中国专家共识》发布会隆重召开。山东大学齐鲁医院张运院士、河北医科大学心脏介入中心傅向华教授以及南方医科大学南方医院吴平生教授分别就共识背景与冠脉微血管疾病诊治等内容进行了精彩介绍。张运院士指出,距冠脉微血管疾病的文献报告出现已有半个世纪,但有关此病的诊断和治疗建议一直未写入指南。迄今为止,仍无针对冠脉微血管疾病的指南或共识,临床医师对于此病的认识仍有很多误区。

昨日,《冠状动脉微血管疾病诊断和治疗的中国专家共识》发布会隆重召开。山东大学齐鲁医院张运院士、河北医科大学心脏介入中心傅向华教授以及南方医科大学南方医院吴平生教授分别就共识背景与冠脉微血管疾病诊治等内容进行了精彩介绍。


张运院士指出,距冠脉微血管疾病的文献报告出现已有半个世纪,但有关此病的诊断和治疗建议一直未写入指南。迄今为止,仍无针对冠脉微血管疾病的指南或共识,临床医师对于此病的认识仍有很多误区。


因此,中华医学会心血管病学分会组织基础研究学组、介入心脏病学组、女性心脏健康学组以及动脉粥样硬化和冠心病学组等四个学组的专家着手编写《冠状动脉微血管疾病诊断和治疗的中国专家共识》(以下简称为《共识》),历经17 个月最终定稿,并拟于《中国循环杂志》2017 年5 月第32 卷第5 期正式发布,并同期配发了张运院士撰写的述评“加强对冠状动脉微血管疾病的研究”。


谈及本部《共识》亮点,张运院士提到,这是国内外首部关于 CMVD的专家共识,具有高度创新性和广泛共识性。


其次,编写组首次提出了CMVD诊断和治疗的 6 大专家建议,具有重要的临床参考价值。另外,《共识》高度重视我国学者在国际上发表的研究文献,并提出了与国外专家不同的 CMVD 临床分型,从而使该共识具有浓厚的中国特色,并兼具科学性与实用性。


对于冠脉微血管疾病与传统大冠脉病变在诊治方面的异同点,傅向华教授表示,冠心病或者缺血性心脏病,从病理生理学上而言是心肌血运供求关系失衡造成的缺血缺氧性心脏病。在整个循环通路中,任何阶段的病理改变或者功能性变化都可能引起相对应的缺血缺氧性化,广义上可称之为缺血性心脏病或冠心病。


目前,我们对冠心病的临床认知多停留在心外膜下大血管病变上,但后者在循环解剖及功能上只起到血液运达传送作用,仅占冠脉循环总循环面积的5% 左右,后续更多依靠的是深入到心肌内的微循环系统。


在临床工作中,部分患者存在客观缺血症状但缺乏大血管病变证据,那么除了怀疑冠脉痉挛这类动力性狭窄以外,还应考虑到微血管病变。


在治疗上,冠脉微血管疾病与大冠脉病变的处理存在相似之处,如控制传统风险因素、加用传统抗心绞痛药物(β受体阻滞剂与钙拮抗剂)、使用新型抗心绞痛药物(雷诺嗪、尼可地尔及伊伐布雷定)、女性使用抗抑郁药(三环类抗抑郁药)及介入治疗。


不同之处在于,传统的抗心肌缺血药物,如β 受体阻滞剂和钙拮抗剂,因机制上不能专门作用于微血管而疗效有限;而ACEI 的抑制血管重构作用,他汀的抗炎作用,阿司匹林的抗血小板作用,则有益于对微血管疾病的治疗。


新型的抗心肌缺血药物中,尼可地尔(ATP敏感性钾通道开放剂)具有类硝酸酯作用及ATP 敏感性钾通道开放作用,在冠脉微血管疾病治疗中循证证据较多。


吴平生教授指出,冠脉微血管病变是导致冠心病的基本机制。冠脉微血管病变所涉患者人群广泛。正确识别CMD 并积极改善冠脉微血管功能对患者而言意义重大。


张运院士表示,《共识》之目的在于解决一些问题,更重要的在于提出问题。对于冠脉微血管疾病方面的研究具有重要临床意义,但目前仍存在不少空白,值得广大心血管病医师进行深入探讨。在冠心病诊治的临床实践中,临床医生需将关注点从心外膜下的冠状动脉扩展到全冠状动脉系统。

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    2017-04-10 mgqwxj
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