Publications by authors named "Bryan Raybuck"

Background: Unicuspid aortic valve (UAV) represents a rare congenital anomaly characterized by two subtypes: acommissural unicuspid aortic valve and unicommissural unicuspid aortic valve. Acommissural UAV is often diagnosed and corrected during the neonatal period due to haemodynamic instability. Unicommissural UAV leads to aortic stenosis (AS) in early adulthood.

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Background: General anesthesia has traditionally been used in transcatheter aortic valve replacement; however, there has been increasing interest and momentum in alternative anesthetic techniques.

Aims: To perform a descriptive study of anesthetic management options in transcatheter aortic valve replacements in the United States, comparing trends in use of monitored anesthesia care versus general anesthesia.

Settings And Design: Data evaluated from the American Society of Anesthesiologists' (ASA) Anesthesia Quality Institute's National Anesthesia Clinical Outcomes Registry.

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There is emerging recent data that has shown women to be more prone to in-hospital major adverse events after trans catheter left atrial appendage occlusion. Institutional LAAO registry at West Virginia University (WVU) was reviewed from January 2016 to October 2021 to identify 271 women and 293 men who underwent successful LAAO device implantation. Patients were evaluated for gender-based differences in baseline characteristics, CHA₂DS₂-VASc Score, HAS-BLED score, procedural data, in-hospital, and follow-up outcomes.

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Background: Placing an intracardiac echocardiogram (ICE) catheter in the left atrium allows for excellent visualization of the left atrial appendage to guide left atrial (LA) appendage occlusion (LAAO). Nonetheless, it requires a separate septal puncture or a unique set of skills to navigate the ICE through a previously prepared septal puncture, which can be challenging.

Case Summary: This report describes a novel method to insert an ICE in the left atrium through a single septal puncture utilizing a snare technique.

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Background/purpose: Device-related thrombosis (DRT) is one of the greatest challenges of transcatheter left atrial appendage device occlusion. Due to the invasive nature of transesophageal echocardiography (TEE), cardiac computed tomography angiography (CCTA) is being increasingly utilized in several centers for assessing adequate left atrial appendage closure and monitoring for DRT. There is a paucity of data regarding the standardized definition of DRT on CCTA for the WATCHMAN FLX™ device.

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Background: Pre-procedural chronic kidney disease (CKD) and in-hospital acute kidney injury (AKI) are associated with worse outcomes following transcatheter aortic valve replacement (TAVR). We tested the feasibility of reducing overall AKI by avoiding pre-procedural cardiac CT angiography (CCTA) by using direct 3D-TEE guidance in TAVR patients with known CKD.

Methods: An institutional TAVR database was examined from January 2016 to June 2020 to identify 396 patients in whom CCTA sizing was performed and 54 patients with creatinine (Cr) of >1.

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Background: Transesophageal echocardiography (TEE) is the standard imaging modality used to assess the left atrial appendage (LAA) after transcatheter device occlusion. Cardiac computed tomography angiography (CCTA) offers an alternative non-invasive modality in these patients. We aimed to conduct a comparison of the two modalities.

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Semisupervised machine-learning methods are able to learn from fewer labeled patient data. We illustrate the potential use of a semisupervised automated machine-learning (AutoML) pipeline for phenotyping patients who underwent transcatheter aortic valve implantation and identifying patient groups with similar clinical outcome. Using the Transcatheter Valve Therapy registry data, we divided 344 patients into 2 sequential cohorts (cohort 1, n = 211, cohort 2, n = 143).

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Objectives: The aim of this study was to compare the safety and hospital charges between intracardiac echocardiography (ICE)- and transesophageal echocardiography (TEE)-guided left atrial appendage occlusion (LAAO).

Background: TEE has been the gold standard imaging modality to guide LAAO. Although ICE has emerged as an alternative to guide LAAO, data on the safety, and cost effectiveness of its routine remain limited.

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Objectives: This study sought to assess the incidence and clinical impact of device related thrombus (DRT) following precautions left atrial appendage occlusion (LAAO).

Background: Device-related thrombus is a known complication of LAAO. However, data on the incidence of DRT and its impact on outcomes are limited.

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Background: The risk of surgical mitral valve replacement in patients with severe mitral annular calcification (MAC) is high. Several patients worldwide with severe MAC have been treated successfully with transcatheter mitral valve replacement (TMVR) using balloon-expandable aortic transcatheter valves. The TMVR in MAC Global Registry is a multicenter registry that collects data on outcomes of these procedures.

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We assessed the effect of a transcatheter aortic valve replacement (TAVR) program and Heart Team concept on our approach to severe isolated symptomatic aortic stenosis (AS) with regard to surgical practice, patient selection, perioperative outcomes, 1-year survival, and AVR volume. TAVR program began in August 2011. Patients having isolated surgical AVR between January 2008 and August 2011, when the program began (n = 282, 42 months), were compared with those after the program began until February 2015 (n = 344, surgical AVR and n = 126, TAVR, 42 months).

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Background: Non-alcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic syndrome and coronary artery disease (CAD) is the cardiac manifestation of metabolic syndrome. NAFLD is strongly linked to CAD and hepatic steatosis is an independent risk factor for CAD and cardiac mortality. The pathogenic mechanism underlying this association remains poorly understood.

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