Seth Ashok, Gupta Sajal, Pratap Singh Vivudh, Kumar Vijay
Fortis Escorts Heart Institute, New Delhi, India.
Interv Cardiol. 2017 Sep;12(2):81-84. doi: 10.15420/icr.2017:12:1.
Final stent dimensions remain an important predictor of restenosis, target vessel revascularisation (TVR) and subacute stent thrombosis (ST), even in the drug-eluting stent (DES) era. Stent balloons are usually semi-compliant and thus even high-pressure inflation may not achieve uniform or optimal stent expansion. Post-dilatation with non-compliant (NC) balloons after stent deployment has been shown to enhance stent expansion and could reduce TVR and ST. Based on supporting evidence and in the absence of large prospective randomised outcome-based trials, post-dilatation with an NC balloon to achieve optimal stent expansion and maximal luminal area is a logical technical recommendation, particularly in complex lesion subsets.
即使在药物洗脱支架（DES）时代，最终支架尺寸仍是再狭窄、靶血管重建（TVR）和亚急性支架血栓形成（ST）的重要预测指标。支架球囊通常是半顺应性的，因此即使高压扩张也可能无法实现均匀或最佳的支架扩张。支架置入后使用非顺应性（NC）球囊进行后扩张已被证明可增强支架扩张，并可降低TVR和ST。基于支持证据且缺乏大型前瞻性随机对照试验，使用NC球囊进行后扩张以实现最佳支架扩张和最大管腔面积是一项合理的技术建议，特别是在复杂病变亚组中。
