Results 71 to 80 of about 70,103 (352)

Early Stent Frame Fracture of SAPIEN 3 Valve in the Pulmonary Position

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT A 15‐year‐old post‐REV patient underwent transcatheter pulmonary valve replacement with a 23 mm SAPIEN 3 for right ventricular outflow tract (RVOT) stenosis and severe regurgitation. At 9 months, recurrent stenosis revealed multiple frame fractures.
Raymond N. Haddad, Clément Batteux, Emre Belli, Sébastien Hascoët   +3 more
wiley   +1 more source

Metabolic changes during cardiac regeneration in the axolotl

Developmental Dynamics, EarlyView.
Abstract Background The axolotl is a prominent model organism of heart regeneration due to its ability to anatomically and functionally repair the heart after an injury that mimics human myocardial infarction. In humans, such an injury leads to permanent scarring. Cardiac regeneration has been linked to metabolism and the oxygenation state, but so far,
Anita Dittrich, Sofie Amalie Andersson, Morten Busk, Kasper Hansen, Casper Bindzus Foldager, Johan Palmfeldt, Asger Andersen, Michael Pedersen, Mikkel Vendelbo, Kirstine Lykke Nielsen, Henrik Lauridsen   +10 more
wiley   +1 more source

Idiopathic Epicardial Ventricular Arrhythmias: Diagnosis and Ablation Technique from the Aortic Sinus of Valsalva [PDF]

, 2005
Idiopathic outflow tract arrhythmias (ventricular tachycardias or symptomatic premature ventricular contractions; OT-VT/PVCs) can originate from the left ventricular (LV) epicardium (Epi-VT/PVCs), and radiofrequency (RF) energy applications from the ...
Tada, Hiroshi
core   +1 more source

Lineage labeling with zebrafish hand2 Cre and CreERT2 recombinase CRISPR knock‐ins

Developmental Dynamics, EarlyView.
Abstract Background The ability to generate endogenous Cre recombinase drivers using CRISPR‐Cas9 knock‐in technology allows lineage tracing, cell type‐specific gene studies, and in vivo validation of inferred developmental trajectories from phenotypic and gene expression analyses. This report describes endogenous zebrafish hand2 Cre and CreERT2 drivers
Zhitao Ming, Fang Liu, Hannah R. Moran, Robert L. Lalonde, Megan Adams, Nicole K. Restrepo, Parnal Joshi, Stephen C. Ekker, Karl J. Clark, Iddo Friedberg, Saulius Sumanas, Chunyue Yin, Christian Mosimann, Jeffrey J. Essner, Maura McGrail   +14 more
wiley   +1 more source

Intravascular Lithotripsy for Severe RVOT Calcification to Optimize Transcatheter Pulmonary Valve Replacement

JACC: Case Reports, 2023
The presence of severe right ventricular outflow tract calcification may preclude safe and effective transcatheter pulmonary valve replacement in patients with pulmonary allograft stenosis owing to the risk of conduit tear and suboptimal annular ...
Nabil Sabbak, MD, Kara Denby, MD, Anirudh Kumar, MD, Ghazaleh Goldar, MD, Joanna Ghobrial, MD   +4 more
doaj  

Myocardial deletion of Smad4 using a novel alpha skeletal muscle actin Cre recombinase transgenic mouse causes misalignment of the cardiac outflow tract [PDF]

, 2010
S MAD4 acts as the converging point f or T GF β and BMP signaling in heart development. Here, we investigated the role of S MAD4 in heart development usi ng a novel α skeletal muscle actin Cre recombinase (MuCre) transgenic mouse strain.
Azhar, M, Deng, CX, Frugier, T, Koishi, K, McLennan, IS, Noakes, PG, Wang, PY   +6 more
core   +1 more source

Dynamic narrowing of left ventricular outflow tract—Possible mechanism of latent left ventricular outflow tract obstruction [PDF]

Journal of Cardiology Cases, 2010
It has been reported that left ventricular outflow tract (LVOT) obstruction can be provoked in patients even without significant left ventricular hypertrophy. We experienced a 74-year-old man with mild degree of left ventricular hypertrophy and latent LVOT obstruction which was successfully treated by alcohol septal ablation. LVOT was not narrow at end-
Yuji Oikawa, Takeshi Yamashita, Tadanori Aizawa, Mitsuaki Isobe, Hitoshi Sawada, Akira Koike, Tokuhisa Uejima, Masaaki Shoji, Shunsuke Matsuno, Junji Yajima   +9 more
openaire   +3 more sources

Undiagnosed hypertrophic obstructive cardiomyopathy during transcatheter aortic valve replacement: a case report

Journal of Medical Case Reports, 2018
Background Transcatheter aortic valve replacement is indicated for severe symptomatic aortic stenosis in patients who have a very high or prohibitive surgical risk as assessed pre-procedurally by the Society of Thoracic Surgery Risk Score, EuroSCORE (II),
Kevin R. Olsen, Joseph E. LaGrew, Caleb A. Awoniyi, J. Christopher Goldstein   +3 more
doaj   +1 more source

Echocardiographic evaluation of velocity ratio, velocity time integral ratio, and pulmonary valve area in dogs with pulmonary valve stenosis. [PDF]

, 2018
BackgroundVelocity ratio, velocity time integral (VTI) ratio, and pulmonary valve area indexed to body surface area (iPVA) are methods of assessment of pulmonary valve stenosis (PS) severity that are less dependent on blood flow. Studies evaluating these
Bélanger, Catherine, Gunther-Harrington, Catherine T, Nishimura, Satoko, Oldach, Maureen S, Stern, Joshua A, Visser, Lance C   +5 more
core   +1 more source

Left ventricular diastolic dysfunction worsens prognosis in patients with heart failure due to dilated cardiomyopathy

ESC Heart Failure, Volume 12, Issue 2, Page 1183-1193, April 2025.
Abstract Aims The prognostic significance of left ventricular (LV) diastolic dysfunction (LVDD) severity in patients with dilated cardiomyopathy (DCM) remains uncertain. This study aimed to evaluate the association of LVDD severity and elevated left atrial pressure (eLAP) with patient outcomes in stable, non‐acutely decompensated patients with DCM ...
Mateusz Winiarczyk, Ewa Dziewięcka, Sylwia Wiśniowska‐Śmiałek, Agnieszka Stępień, Katarzyna Graczyk, Agata Leśniak‐Sobelga, Marta Hlawaty, Jakub Woźniak, Maryia Savitskaya, Katarzyna Holcman, Magdalena Kostkiewicz, Piotr Podolec, Paweł Rubiś   +12 more
wiley   +1 more source