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Surface steel ball calibration - A novel method for facilitating fluoroscopic measurement during implantation of WATCHMAN.
J Cardiol
January 2025
Arrhythmia Diagnosis and Treatment Center, The First Affiliated Hospital of Ningbo University, Ningbo, China. Electronic address:
Background: Although the method of autocalibration or calibration based on catheter diameters was proposed for fluoroscopic measurement during percutaneous left atrial appendage occlusion (LAAO), it may be imprecise and lead to mismeasurement. We sought to investigate whether the utilization of the surface steel ball calibration (SSBC) method under fluoroscopy could facilitate the fluoroscopic measurement of the post-implanted WATCHMAN device (Boston Scientific Corporation, Natick, MA, USA) in LAAO.
Methods: This retrospective study included 97 consecutive patients who underwent percutaneous LAAO with the WATCHMAN device.
Evaluating cardiac performance in beagle dogs: Transesophageal echocardiography and myocardial work assessment.
Heliyon
January 2025
Department of Ultrasound Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, People's Republic of China.
Objectives: This study aimed to establish standard transesophageal echocardiographic (TEE) measurements of left ventricular (LV) morphology, function, and myocardial work parameters in healthy Beagle dogs using pressure-strain loops (PSL). Additionally, it sought to standardize optimal TEE imaging techniques and explore the potiential application of myocardial work analyis in veterinary medicine.
Methods: Thirty-seven healthy male Beagle dogs were anesthetized, intubated, and mechanically ventilated for TEE examinations.
Percutaneous left atrial appendage closure using a modified single-operator-technician approach under deep sedation: A single-center experience.
Heart Rhythm O2
December 2024
Department of Electrophysiology, North Mississippi Medical Center, Tupelo, Mississippi.
Background: Historically, percutaneous transcatheter left atrial appendage closure (LAAC) has been performed under general anesthesia (GA) with transesophageal echocardiographic images obtained by a noninvasive cardiologist and usually requires an overnight hospital stay. Alternatively, we present our single-center experience performing LAACs under deep sedation (DS), employing an echocardiographic technician instead of a noninvasive cardiologist, and expediting same-day discharge. Mid- to long-term outcomes were also evaluated with follow-up imaging at a 45-day visit.
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.
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