葛均波院士CTO-AGT(主动迎客技术)正式录用发表

2018-11-16 健康界 健康界

葛均波院士提出的主动迎客技术的相关临床研究资料目前已经被《Science Bulletin》录用待发布,让我们抢先来了解一下这项新技术。

虽然逆向技术大大提高了冠状动脉慢性完全闭塞性病变(CTO)PCI的成功率,但在某些病例中逆向导丝体外化仍然很耗时并具有挑战性。作为国内CTO介入治疗的领军者,葛均波院士提出的主动迎客技术的相关临床研究资料目前已经被《Science Bulletin》录用待发布,让我们抢先来了解一下这项新技术。

什么叫主动迎客技术?

主动迎客技术(Active Greeting Technique,AGT)是指将子母导管深插管(Guidezilla™延长管,4或5 Fr内导管等)和逆向CART技术或逆向导丝通过技术结合的技术,有利于导丝体外化。为什么呢?

打个比方,我们请远方客人到家里来做客,客人不认识路,你告诉他下了高速往前走200米再右转,右转看到红绿灯再左转,客人走着走着就迷糊了。你不如干脆叫你儿子到门口或到高速公路出口的地方把客人领回来。既然你诚心诚意邀请人家到家里来玩,就干脆到外面去迎接人家,不要去打电话告诉人家这样走那样走。

同样,在逆向导丝通过的过程中,我们既然希望逆向通过CTO病变,那么不如派一根导管前去接应逆向而来的导丝,避免逆向导丝“迷路”。

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研究设计

该研究资料来源于中国慢性闭塞性病变俱乐部(CTOCC)数据库中使用主动迎客技术的病例。回顾性纳入111名CTO患者,共计112处CTO病变。所有患者的PCI过程均遵循当前的实践标准。

AGT技术的流程为:

(1)逆向导丝通过闭塞病变;

(2)将子母导管尽可能向远端输送,适当情况下使用锚定技术进行锚定;

(3)将逆向导丝置入子母导管中。技术成功定义为残余狭窄<30%,前向血流恢复至TIMI III级。手术成功定义为在技术成功的基础上住院期间无主要不良心脏事件发生。

研究结果

(1)90.2%采用逆向CART技术,9.8%采用逆向导丝通过技术。Guidezilla™延长导管、4 Fr和5 Fr内导管的利用率分别为94.6%、3.6%和1.8%。

(2)所有患者均达到技术成功。

(3)无AGT相关手术并发症,与AGT无关的并发症包括2例靶血管穿孔和2例侧支血管穿孔。住院期间无主要不良心脏事件发生。

AGT案例

葛均波院士CTO-AGT(主动迎客技术)正式录用发表

病例一:67岁男性,有严重心绞痛,危险因素包括高血压和吸烟,当地医院拟开通RCA CTO病变失败。使用6 Fr SAL1.0 SH 指引导管(Medtronic) 和 7 Fr EBU 3.5 指引导管(Medtronic)(图a)。综合分析CTO病变的形态和侧枝循环后直接尝试逆向技术。Sion导丝(Asahi intecc)和150cm Corsair (Asahi intecc)微导管通过侧支,尝试逆向CART技术(b-d)。Guidezilla™延长导管尽可能向远端送,迎接逆向CART技术的导丝(e)。球囊扩张后,逆向导丝(短箭头)成功置入Guidezilla™延长导管,RG3导丝(Asahi intecc)成功体外化(g)。复查造影可见RCA CTO病变开通(h)。

葛均波院士CTO-AGT(主动迎客技术)正式录用发表

病例二:68岁男性,多支病变,有严重心绞痛,危险因素包括高血压和吸烟。2003年曾于RCA植入1枚支架,此次症状发作后当地医院拟开通RCA CTO失败。使用6 Fr AL0.75 指引导管(Medtronic) 和 6 Fr EBU 3.5指引导管 (Medtronic)。前向失败后尝试逆向开通(b,c)。逆向导丝成功通过闭塞段,逆向导丝向前置入前向指引导管的过程非常困难。前向置入Guidezilla™扩展导管(长箭头)并尽可能向远端送,与逆向导丝(短箭头)相遇(d)。在Guidezilla™扩展导管的帮助下,逆向导丝很容易地进入了前向指引导管(e)。术后复查造影RCA CTO开通(f)。

既往研究已经证实microsnare或自制捕获系统(self-made trapping system)可以协助逆向导丝体外化,但这两项技术目前仍颇具难度。JC Spratt以及我们的经验证实Guideliner™和Guidezilla™在协助逆向CART技术导丝体外化方面具有重要价值。如今,我们加用子母导管,并将适应证扩展至逆向导丝通过技术。对于那些细小迂曲的动脉,Guidezilla™深插可能较为困难,此时4或5Fr的导管可能是更为合适的选择。

当然,在使用AGT技术时需要牢记以下3点:

(1)操纵逆向导丝之前子母导管的头端应该进入逆向CART技术所造成的腔内或接近近端入口。若子母导管只到达口部或近端,AGT技术的有效性则会受限。

(2)深插过程中,可以使用锚定技术增加支撑力。但是要注意操作细致,避免管壁损伤。为了减小夹层的风险,将子母导管前送过程中推荐使用球囊非单纯“的导丝。

(3)在逆向导丝通过后即可考虑AGT技术。但如果逆向CART后导丝通过闭塞段的时间较长,有可能造成心肌缺血,此时应该快速实现逆向导丝体外化。

结论:AGT是一种可行的、安全的技术,有利于逆向导丝体外化。

正如葛均波院士所讲,主动迎客就是要既能节省时间找对路、找对人,还让客人觉得客气。

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    2019-10-26 gao_jian4217
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    2018-11-16 junJUN

    院士是学术至高点,也是大家必争之地呀

    0

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    2018-11-16 易水河

    不错

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