Publications by authors named "Z Chmielak"

Article Synopsis
  • The COAPT Risk Score predicts the likelihood of death or hospitalization for heart failure within two years after undergoing transcatheter edge-to-edge repair for mitral regurgitation using the MitraClip device.
  • An international study analyzed 344 patients categorized as COAPT eligible or non-eligible based on COAPT trial criteria, finding higher risk scores associated with increased mortality and hospitalization.
  • Overall, the COAPT Score had poor predictive accuracy for both groups, showing better performance in lower-risk patients compared to higher-risk patients, suggesting the Score's effectiveness varies according to patient baseline risk.
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Introduction: Transfemoral access is a prevailing approach for transcatheter aortic valve implantation (TAVI) in contemporary practice, with a shift from surgical arteriotomy to a percutaneous arterial approach.

Objectives: This study assessed long- and short‑term mortality, along with Valve Academic Research Consortium-2-defined complications in percutaneous transfemoral approach (PTA) TAVI. Furthermore, it explored the impact of a learning curve on procedural outcomes.

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Background: Both transcatheter edge-to-edge repair (TEER) of mitral regurgitation or left atrial appendage closure (LAAC) require periprocedural anticoagulation with unfractionated heparin (UFH) that is administered either before or immediately after transseptal puncture (TSP). The optimal timing of UFH administration (before or after TSP) is unknown. The Strategy To Optimize PeriproCeduraL AnticOagulation in Structural Transseptal Interventions trial (STOP CLOT Trial) was designed to determine if early anticoagulation is effective in reducing ischemic complications without increasing the risk of periprocedural bleeding.

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