Ielasi Alfonso, Anzuini Angelo
Catheterization Laboratory, Cardiology Department, Istituto Clinico Humanitas Mater Domini Via Gerenzano 2, 21053 Castellanza, VA, Italy.
Catheterization Laboratory, Cardiology Department, Istituto Clinico Humanitas Mater Domini Via Gerenzano 2, 21053 Castellanza, VA, Italy.
Cardiovasc Revasc Med. 2014 Mar;15(2):117-20. doi: 10.1016/j.carrev.2013.08.004. Epub 2013 Sep 17.
We report the case of a 77-year-old male patient who was admitted to our institution for non-ST segment elevation myocardial infarction. Coronary angiography showed a sub-occlusive lesion of the distal left anterior descending artery (LAD) in the context of a diffuse atherosclerotic disease involving a very long segment of the vessel (about 80mm in length by visual estimation). Pre-dilatation was performed in the mid calcified segment of the LAD with a non-compliant balloon inducing vessel dissection. An everolimus-eluting bioresorbable vascular scaffold (EEBVS) was then advanced in the LAD but the first delivery attempt at the distal site failed because of friction between the EEBVS struts and the calcified vessel wall. In order to facilitate EEBVS delivery, a 5Fr catheter system (Heart Rail II, Terumo, Tokyo, Japan) was advanced in the mid LAD within a standard 6Fr guiding catheter facilitating a non-traumatic deep intubation up to the mid LAD. This strategy increased back-up support facilitating the delivery, beyond the site of resistance, of four EEBVS implanted in overlap. This case demonstrated the successful use of a guide catheter extension system to deliver multiple EEBVS in a patient with a long, calcified LAD lesion.
我们报告了一名77岁男性患者的病例,该患者因非ST段抬高型心肌梗死入住我院。冠状动脉造影显示,在弥漫性动脉粥样硬化疾病累及血管很长一段(目测约80毫米长)的情况下,左前降支(LAD)远端存在亚闭塞性病变。在LAD的钙化中段使用非顺应性球囊进行预扩张,导致血管夹层。然后将依维莫司洗脱生物可吸收血管支架(EEBVS)推进到LAD,但由于EEBVS支架与钙化血管壁之间的摩擦,首次在远端部位的输送尝试失败。为了便于EEBVS输送,在标准6Fr引导导管内将一个5Fr导管系统(Heart Rail II,Terumo,东京,日本)推进到LAD中段,便于无创深入插管至LAD中段。该策略增加了备用支持,便于将四个重叠植入的EEBVS输送到阻力部位之外。该病例证明了在一名患有长段钙化LAD病变的患者中成功使用引导导管延伸系统来输送多个EEBVS。