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首页> 外文期刊>Annals of thoracic and cardiovascular surgery: official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia >Outcomes and hemodynamics after aortic valve replacement: a comparison of stentless versus mechanical valves.
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Outcomes and hemodynamics after aortic valve replacement: a comparison of stentless versus mechanical valves.

机译：主动脉瓣置换后的结果和血流动力学：无支架瓣膜瓣与机械瓣膜的比较。

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PURPOSE: Some investigators suggest that hemodynamic outcomes may be superior with the stentless aortic bioprosthesis when compared with a mechanical valve. The goal of this study was to characterize outcomes and hemodynamic data associated with each type of valve. SUBJECTS AND METHODS: Patient outcomes and echocardiographic data were compared between 25 patients with stentless valves and 59 patients with mechanical valves. RESULTS: There were no significant differences in survival and freedom from cardiovascular adverse events between two groups. The duration of anticoagulation therapy was limited to 3 months in the stentless group. There was no significant difference in preoperative and postoperative New York Heart Association (NYHA) status when comparing the two groups, and NYHA status significantly improved in both groups (P<0.05). There was no significant difference in the echocardiographic data when comparing the two groups. CONCLUSION: Aortic valve replacement using the stentless valve and the mechanical valve provided good clinical and hemodynamic outcomes. There was no significant difference in these parameters when comparing the two groups. There may be advantages in the limited required duration of anticoagulation therapy of the stentless valve , especially in elderly patients. However, longer follow-up is required before definitive conclusions regarding the benefits of the stentless valve relative to the mechanical valve can be determined.
机译：目的：一些研究者认为，与机械瓣膜相比，无支架主动脉生物假体的血流动力学结果可能更好。这项研究的目的是表征与每种瓣膜相关的结局和血液动力学数据。研究对象和方法：比较了25例无支架瓣膜患者和59例机械瓣膜患者的患者预后和超声心动图数据。结果：两组之间在生存和免于心血管不良事件方面没有显着差异。无支架组抗凝治疗的持续时间限制为3个月。与两组比较，术前和术后纽约心脏协会（NYHA）的状态无显着差异，两组的NYHA状态均显着改善（P <0.05）。比较两组时，超声心动图数据无显着差异。结论：使用无支架瓣膜和机械瓣膜置换主动脉瓣可提供良好的临床和血液动力学结果。比较两组时，这些参数没有显着差异。无支架瓣膜抗凝治疗的所需时间有限可能会有好处，尤其是在老年患者中。但是，在确定无支架瓣膜相对于机械瓣膜的益处的明确结论之前，需要更长的随访时间。

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