Left ventricular outflow tract obstruction resulting from strut impingement upon the interventricular septum is a rare complication of bioprosthetic mitral valve insertion. Obstruction is more likely to develop when a small, high profile prosthetic valve is inserted into a patient with a small outflow tract. The likelihood of this complication may be reduced by appropriate modification of surgical technique.
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http://dx.doi.org/10.1111/echo.14255 | DOI Listing |
JACC Case Rep
January 2025
Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan.
JACC Case Rep
January 2025
Allina Health Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, Minnesota, USA.
We present a first in human experience of transseptal balloon-assisted translocation of a mitral anterior leaflet (BATMAN) to facilitate transcatheter mitral valve replacement in a patient with severe mitral annular calcification who was at high risk of left ventricular outflow tract obstruction.
View Article and Find Full Text PDFJACC Adv
February 2025
Division of Cardiology, Atlantic Health, New Jersey, USA.
Background: The Valsalva maneuver is essential in evaluating left ventricular outflow tract (LVOT) obstruction in patients with hypertrophic cardiomyopathy (HCM). Traditionally, a self-directed Valsalva (SDV) maneuver is taught to patients using vague instructions such as "bear down." SDV is often not performed correctly leading to variable results and underestimation of the true provocable LVOT gradient.
View Article and Find Full Text PDFIndian Pacing Electrophysiol J
January 2025
Department of Cardiology, Tosei General Hospital, Seto, Aichi, Japan.
Introduction: Three-dimensional (3D) maps are useful for premature ventricular contraction (PVC) ablation. However, positional information changes compared with sinus rhythm when PVCs appear, rendering ablation difficult. We aimed to understand the spatial displacement characteristics of PVC ablation in 3D maps and the therapeutic effect after correction using the LAT-Hybrid function.
View Article and Find Full Text PDFPhys Eng Sci Med
January 2025
School of Electrical Engineering and Electronic Information, Xihua University, Chengdu, China.
Hypertrophic cardiomyopathy (HCM), including obstructive HCM and non-obstructive HCM, can lead to sudden cardiac arrest in adolescents and athletes. Early diagnosis and treatment through auscultation of different types of HCM can prevent the occurrence of malignant events. However, it is challenging to distinguish the pathological information of HCM related to differential left ventricular outflow tract pressure gradients.
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