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Investigating the Shortcomings of the Flow Convergence Method for Quantification of Mitral Regurgitation in a Pulsatile In-Vitro Environment and with Computational Fluid Dynamics.
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Department of Cardiac Surgery, Heidelberg University Hospital, Heidelberg, Germany.
The flow convergence method includes calculation of the proximal isovelocity surface area (PISA) and is widely used to classify mitral regurgitation (MR) with echocardiography. It constitutes a primary decision factor for determination of treatment and should therefore be a robust quantification method. However, it is known for its tendency to underestimate MR and its dependence on user expertise.
View Article and Find Full Text PDFEsophageal Perforation During Transesophageal Echocardiography Managed Conservatively: A Case Report With a Review of the Literature on Management.
Cureus
December 2024
Cardiology, University of Missouri Kansas City School of Medicine, Kansas City, USA.
Transesophageal echocardiography (TEE) is one of the cornerstones of cardiac imaging in inpatient and intra-operative settings. TEE is considered a safe procedure, but it may result in serious complications, such as esophageal injury, vocal cord paralysis, arrhythmia, hypotension, seizure, and cardiac arrest. Herein, we discuss one of the rare complications, esophageal perforation, and a conservative approach to managing the patient in a 64-year-old female who underwent a TEE prior to a scheduled valvular surgery.
View Article and Find Full Text PDFEmbolized Transcatheter Aortic Valve Replacement Diagnosed With Transesophageal Echocardiography and a Novel Management Strategy Using a Thoracic Endovascular Aneurysm Repair Stent.
A A Pract
January 2025
Department of Anesthesiology, University of Kansas Medical Center, Kansas City, Kansas.
Transcatheter aortic valve replacement (TAVR) is a common treatment for severe aortic stenosis (AS), but it carries the risk of severe complications, including device embolization. We present a case of a TAVR valve embolization into the left ventricular outflow tract (LVOT), diagnosed with transesophageal echocardiography (TEE) shortly after device deployment. The dislodged valve was successfully retrieved from the LVOT into the aorta, flattened, and stabilized with a thoracic endovascular aneurysm repair (TEVAR) stent, enabling the successful implantation of a new TAVR valve.
View Article and Find Full Text PDFPreclinical Experience Using 4D Intracardiac Echocardiography to Guide Cardiac Electrophysiology Procedures.
J Cardiovasc Electrophysiol
December 2024
Division of Cardiovascular Medicine, Cardiac Electrophysiology Section, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Introduction: Intracardiac echocardiography (ICE) is an essential imaging modality for electrophysiology procedures, allowing intraprocedural monitoring, real-time catheter manipulation guidance, and visualization of complex anatomic structures. Four-dimentional (4D) ICE is the next stage in the evolution of the technology, permitting 360° rotation of the imaging plane, simultaneous multiplanar imaging, and volumetric acquisition, similar to transesophageal echocardiography (TEE). In this study, we report our experience with a novel 4D ICE catheter (NuVision, Biosense Webster) in structural electrophysiology procedures and difficult ventricular ablations in a swine preclinical model.
View Article and Find Full Text PDFPreoperative Assessment of Degenerative Mitral Regurgitation: Advancing Toward a Less Invasive Approach With Three-Dimensional Transthoracic Echocardiography?
Echocardiography
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Cardiovascular Imaging Unit, Cardiothoracic Department, IRCCS San Raffaele Hospital, Milan, Italy.
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