Publications by authors named "Christina Koutras"

Article Synopsis
  • The National Cardiovascular Data Registry's LAAO Registry includes most LAAO procedures in the U.S., and this study aimed to create a model predicting in-hospital adverse events for patients undergoing LAAO with Watchman FLX.
  • The study analyzed data from 41,001 procedures, using logistic regression on both development and validation cohorts to identify key predictors of major adverse events, such as age, sex, and health status.
  • The resulting risk model showed moderate accuracy and offered a simplified bedside risk score, enabling healthcare professionals to better predict risks and improve decision-making in patient care.
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Background: Clinical events committee (CEC) evaluation is the standard approach for end point adjudication in clinical trials. Due to resource constraints, large registries typically rely on site-reported end points without further confirmation, which may preclude use for regulatory oversight.

Methods: We developed a novel automated adjudication algorithm (AAA) for end point adjudication in the National Cardiovascular Data Registry Left Atrial Appendage Occlusion (LAAO) Registry using an iterative process using CEC adjudication as the "gold standard.

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The National Cardiovascular Data Registry is a group of registries maintained by the American College of Cardiology Foundation. These registries are used by a diverse constituency to improve the quality and outcomes of cardiovascular care, to assess the safety and effectiveness of new therapies, and for research. To achieve these goals, registry data must be complete and reliable.

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Objectives: The aim of this study was to report 1-year clinical outcomes following commercial transcatheter left atrial appendage occlusion (LAAO) in the United States.

Background: The National Cardiovascular Data Registry LAAO Registry was initiated to meet a condition of Medicare coverage and allow the assessment of clinical outcomes. The 1-year rates of thromboembolic events after transcatheter LAAO in such a large cohort of "real-world" patients have not been previously reported.

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Objectives: The aim of this report was to characterize the patients, participating centers, and measures of quality of care and outcomes for 5 NCDR (National Cardiovascular Data Registry) programs: 1) ACTION (Acute Coronary Treatment and Intervention Outcomes Network) Registry-GWTG (Get With The Guidelines) for acute coronary syndromes; 2) CathPCI Registry for coronary angiography and percutaneous coronary intervention; 3) CARE (Carotid Artery Revascularization and Endarterectomy) Registry for carotid revascularization; 4) ICD Registry for implantable cardioverter defibrillators; and the 5) PINNACLE (Practice INNovation And CLinical Excellence) Registry for outpatients with cardiovascular disease (CVD).

Background: CVD is a leading cause of death and disability in the United States. The quality of care for patients with CVD is suboptimal.

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