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冠脉钙化有了治疗新选择!深圳前海泰康医院依托“港澳药械通”,引进首个冠脉轨道旋磨系统(OAS)

  • 2026-05-20 20:52:55
冠脉钙化有了治疗新选择!深圳前海泰康医院依托“港澳药械通”,引进首个冠脉轨道旋磨系统(OAS)

你是否听说过,心脏血管里也会长“石头”?

这种“石头”,医学上称为冠脉钙化,它像坚硬的矿物质沉积、镶嵌在血管壁里,让血管失去弹性,管腔变得又硬又窄。对于冠心病患者来说,这无疑是雪上加霜,因为它会让常规的介入治疗(放支架)变得异常困难,甚至无法进行,被心血管介入医生称为“最棘手的挑战”之一。

依托“港澳药械通”政策,深圳前海泰康医院成为深圳首家成功获批国际先进的冠状动脉轨道旋磨系统(OAS)的医疗机构,为冠状动脉钙化患者带来治疗新选择。这也是医院在引进新一代治疗溃疡性结肠炎的口服创新药——伊曲莫德片后(点击查看),依托该政策获批的第二个项目。

什么是冠脉钙化?为何如此棘手?

我们的心脏血管(冠状动脉)是给心脏供血供氧的“生命通道”。随着年龄增长,加上高血压、高血脂、糖尿病等因素的影响,这个通道的内壁上会沉积像“水垢”一样的斑块。

而冠脉钙化,就像是这层“水垢”变成了坚硬的“石头”。冠脉钙化的发生率随年龄增长显著上升,流行病学数据显示,40-49岁人群发生率约50%,60-69岁人群则高达80%1,2在接受冠脉造影检查的患者中,约32%存在中重度钙化病变3

这些“石头”让血管壁变得僵硬,弹性极差。冠脉钙化会极大增加介入治疗的手术难度,不仅可能导致支架无法通过病变部位,即使勉强放进去,也可能因为支架贴壁不良、膨胀不全,增加术后支架内血栓的发生风险,严重影响患者的远期预后2。因此,想要成功“铺路”,必须先粉碎这些“拦路石”。

1

冠状动脉轨道旋磨系统如何“破石”?

深圳前海泰康医院此次引进的冠状动脉轨道旋磨系统(OAS),正是一款专门对付这些“血管顽石”的国际先进设备。

如果把冠脉介入治疗比作一场精密的“血管清障工程”,那么OAS系统就是一台功能强大的“多功能破石车”。它的工作原理,可以用“精准打磨,轨道清障”来形象理解。

工作原理大揭秘

1. 导丝铺路,建立轨道:医生会先将一根极细的专业导丝(Viperwire)穿过血管,抵达钙化病变部位,这就好比为“破石车”预先铺设好了行进轨道。

2. 双重机制,攻坚克难:OAS系统采用独特的“双重作用机制”。一方面,带有金刚石涂层的偏心旋磨冠以高达15-20万转/分钟的速度高速旋转,通过前向和后向的“双向差异性旋磨”,对血管表面的钙化斑块进行精准打磨减容;另一方面,旋磨过程中产生的高频“脉动力”(1870Hz),可有效松动血管壁深层的钙化斑块,实现从表及里的双重处理4

3. 偏心设计,精准安全:旋磨冠采用独特的“偏心”设计,在高速旋转时会产生离心力。当它遇到坚硬的钙化斑块时,会主动贴上去进行“攻坚”而当它接触到有弹性的健康血管壁时,会因离心力作用自动弹开,从而主动避开健康组织,实现“精准打击,不伤无辜”。这一设计还使其能够360°全方位处理钙化病变,仅需一个尺寸的旋磨冠,即可治疗直径2.5毫米至4毫米的血管,操作更为简便。

4.自动冲刷,保障血流:被打磨成微小颗粒的“碎石”(小于5微米)会随着系统持续灌注的润滑剂(ViperSlide)和血液,通过毛细血管网被人体自身的免疫细胞吞噬清除。整个旋磨过程中,血管不会发生堵塞,持续的盐水或血液灌注有效降低了慢血流、无复流等并发症的发生风险4

2

三大核心优势,为患者保驾护航

冠状动脉轨道旋磨系统(OAS)在钙化病变处理方面具有以下特点:

1.支架植入,稳如磐石:OAS系统能有效修饰和碎裂钙化病变,为支架的输送和扩张创造一个理想的“地基”。临床应用中,OAS系统通过对钙化病变的有效修饰,有助于改善支架输送条件,为支架扩张创造更有利的血管环境

2. 并发症更少,安全升级:OAS系统独特的“双向旋磨”和“偏心轨道”设计,极大地降低了旋磨头被卡住的风险。同时,由于能将斑块打磨成极细的微粒,并持续灌注润滑液,有效减少了血流中断等并发症的发生

3.操作简便,效率更高OAS系统是电力驱动,医护人员可以快速完成安装。其专用的导丝操控性极佳,能轻松通过复杂病变,助于缩短手术时间,减少术中射线暴露剂量

3

哪些人群将从中受益?

冠状动脉轨道旋磨系统(OAS)主要适用于经医生评估后、存在以下冠脉钙化相关情况的患者:

1.严重钙化病变:冠脉造影或血管内超声/光学相干断层扫描提示钙化环角度≥270°,或钙化病变长度>10mm,常规球囊无法跨越病变、无法充分扩张,或球囊扩张时出现“腰征”且高压扩张后仍无法消除的患者。

2.深层钙化病变:钙化累及血管内膜深层,导致血管弹性下降,直接植入支架可能出现支架贴壁不良或膨胀不全的患者。

3.特殊部位钙化冠状动脉开口钙化(如左主干开口、前降支开口、回旋支开口钙化),解剖位置特殊,常规扩张操作难度较大;分叉病变钙化,主支或分支血管存在钙化,可能影响分叉支架术的操作。

4.支架内再狭窄合并钙化既往植入支架后发生再狭窄,且病变处伴有新生钙化斑块,常规球囊扩张效果不理想的患者

5.慢性完全闭塞病变开通后钙化:慢性完全闭塞病变通过导丝开通后,血管内膜存在较多钙化斑块,管腔狭窄仍未完全解除,需进一步处理的患者。

6.其他临床情况高龄、多支血管病变合并钙化,或糖尿病合并冠脉钙化的患者,具体是否适用该技术,需由医生结合整体病情进行综合评估。

温馨提醒:冠状动脉轨道旋磨系统(OAS)作为一项先进的介入治疗技术,有其特定的适用人群。患者是否适合采用该技术进行治疗,需要由心血管内科医生根据具体病情,结合冠脉造影、血管内超声等检查结果进行综合评估。如果您或您的家人有冠脉钙化相关诊疗需求,建议前往正规医院心血管内科门诊就诊,听取专业医生的诊疗建议。

参考文献:

1,Circulation. 2013 Sep 3;128(10):1076-84; 2. Catheter Cardiovasc Interv. 2014 May 1; 83(6): E212–E220.

2,葛均波,王伟民,霍勇. 冠状动脉内旋磨术中国专家共识。中国介入心脏病学杂志, 2017, 25 (2) : 61-66。

3,Genereux P, et al. Ischemic outcomes after coronary intervention of calcified vessels in ACS. Pooled analysis from the HORIZONS AMI (Harmonizing Outcomes With Revascularization and  Stents in Acute Myocardial Infarction) and ACUITY (Acute Catheterization and Urgent Intervention Triage Strategy) trials. J Am Coll Cardiol, 2014, 63 (18): 1845-1854.

4,Shlofmitz, E. et al. Exp Rev Med Dev. 2017;14(11):867-879.

往期精彩

“马”上在岗,“医”心守护丨泰康医疗医护人员春节在岗护团圆

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  1. CONNECT:[ UseTime:0.000435s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000545s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.004791s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000284s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000481s ]
  6. SELECT * FROM `set` [ RunTime:0.001468s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000583s ]
  8. SELECT * FROM `article` WHERE `id` = 502355 LIMIT 1 [ RunTime:0.000403s ]
  9. UPDATE `article` SET `lasttime` = 1779636976 WHERE `id` = 502355 [ RunTime:0.006661s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000235s ]
  11. SELECT * FROM `article` WHERE `id` < 502355 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000480s ]
  12. SELECT * FROM `article` WHERE `id` > 502355 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000394s ]
  13. SELECT * FROM `article` WHERE `id` < 502355 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.008068s ]
  14. SELECT * FROM `article` WHERE `id` < 502355 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000698s ]
  15. SELECT * FROM `article` WHERE `id` < 502355 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004623s ]
0.098572s