Results 121 to 130 of about 346,604 (247)

Introduction

, 2016
The goal of this book is to develop a working hypothesis for mitral valve function in the beating heart. We have been studying the 4-D dynamics of the heart using biplane radiography of surgically implanted radiopaque markers for the past forty years,1 ...
Karlsson, Matts,, Ingels, Jr, Neil B,, Karlsson, Matts, Ingels, Jr, Neil B   +3 more
core   +1 more source

Three‐Dimensional Transesophageal Echocardiographic Vena Contracta Area for Grading Mitral Regurgitation: Severity Cut‐offs From a Prospective Tunisian Cohort

Echocardiography, Volume 43, Issue 9, September 2026.
Three‐dimensional vena contracta area (VCA) measured by transoesophageal echocardiography enables precise accurate quantification of mitral regurgitation severity. In a Tunisian cohort, 3D VCA showed strong correlations with conventional 2D indices and excellent diagnostic performance for severe MR, supporting its use particularly in rheumatic mitral ...
Yosra Messaoudi, Dedde El Bechir, Abdellaziz Ghadhab, Merzougui Latifa   +3 more
wiley   +1 more source

Reproducing Anisotropic Properties in Personalized Mitral Valve Models to Improve Hemodynamic Behavior

Current Directions in Biomedical Engineering
Mitral valve insufficiency can be surgically corrected by minimally invasive mitral valve surgery. This approach is difficult to learn and training opportunities are still limited. Therefore, we built a physical mitral valve flow simulator to accommodate
Bergt C. Sören, Romano Gabriele, Karl Roger, Müller Sarah K., Karck Matthias, Liebig Wilfried V., Engelhardt Sandy   +6 more
doaj   +1 more source

The V6R/V4R Index: A Novel ECG Parameter for Identifying Idiopathic Ventricular Arrhythmias Originating From the Aortic Cusp

Journal of Cardiovascular Electrophysiology, Volume 37, Issue 9, Page 1988-1996, September 2026.
The V6R/V4R amplitude index is a novel and practical electrocardiographic parameter for identifying idiopathic ventricular arrhythmias originating from the aortic cusp. A cutoff >0.55 accurately distinguishes cusp from adjacent non‐cusp origins within the left ventricular outflow tract, facilitating targeted mapping and procedural planning.
Yoshihisa Naruse, Kohki Nakamura, Kanae Hasegawa, Toshihiko Tsuji, Machiko Miyoshi, Tatsuhiro Kataoka, Hideyuki Aoki, Yoshinori Okazaki, Shigeto Naito, Hiroshi Tada, and other members of the V6R/V4R Study Group, Tomoki Kaeriyama, Shigeki Horiguchi, Kaori Hisazaki, Takehito Sasaki, Kentaro Minami, Yutaro Kaneko, Taro Narumi, Makoto Sano, Yuichiro Maekawa   +19 more
wiley   +1 more source

Dynamic Behavior of Left Atrial Low‐Voltage Areas in Persistent Atrial Fibrillation: Implications for Substrate‐Guided Ablation

Journal of Cardiovascular Electrophysiology, Volume 37, Issue 9, Page 2005-2013, September 2026.
Patient selection and analysis flow diagram. The exact pre‐inclusion denominator and reliable reason‐specific exclusion counts could not be reconstructed because a prospectively maintained screening log was unavailable. The diagram summarizes the final study cohort and analysis‐specific sample sizes. AF, atrial fibrillation; LVA, low‐voltage area; SR1,
Yunus Emre Özbebek, Özcan Özdemir, Sinan Boz, Haluk Furkan Şahan, Engin Algül, Sinan İşcen, Hamza Sunman, Tolga Han Efe   +7 more
wiley   +1 more source

Segmental Snare Traction Technique for Helix‐Fixed Leadless Pacemaker Implantation Across a Repaired Tricuspid Annulus

Pacing and Clinical Electrophysiology, Volume 49, Issue 9, Page 1332-1334, September 2026.
ABSTRACT Helix‐fixed leadless pacemaker delivery can be challenging after tricuspid annuloplasty with a rigid ring. An 80‐year‐old woman with prior mitral valve repair, tricuspid annuloplasty (26‐mm MC ring), and Maze III surgery presented with syncope due to atrial fibrillation with a slow ventricular response. Standard maneuvers failed to advance the
Yuya Nakamura, Yoshikazu Suzuki, Yumi Aiyama, Kanji Miki, Erina Kunimoto, Toshiro Shinke   +5 more
wiley   +1 more source

Transesophageal echocardiography as predictor of mitral valve repair

, 2001
BACKGROUND AND AIM OF THE STUDY: Mitral valve repair has recently emerged as the treatment of choice in patients presenting with insufficiency due to valve prolapse. The study aims were to evaluate: (i) the clinical presentation in a consecutive series
M. Berti, L. Salvi, E. Doria, C. Antona, E. Sisillo, M. Pepi, M. Muratori, F. Alamanni   +7 more
core   +2 more sources

Differential effects of central blood volume loading and unloading on pulmonary diffusing capacity in humans

The Journal of Physiology, Volume 604, Issue 18, Page 7957-7970, 15 September 2026.
Abstract figure legend Central blood volume (CBV) is a key haemodynamic determinant of pulmonary diffusing capacity for carbon monoxide (DLCO) and its components, capillary blood volume (Vc) and membrane diffusing capacity (Dm,CO). However the contribution of CBV to DLCO regulation remains poorly defined. We investigated the effects of graded increases
Andrew W. D'Souza, Andrew R. Brotto, Thomas G. Williams, Chuanyi Foo, Eli Bok, Desi P. Fuhr, Jason Weatherald, Sean van Diepen, Michael K. Stickland   +8 more
wiley   +1 more source

3D mitral valve area and impact on post procedural gradient after MTR with single clip deployment

reservedIntroduzione La stenosi mitralica come complicanza post-procedurale rappresenta ancora un limite significativo della procedura di riparazione mitralica trans-catetere con tecnica edge-to-edge.
COZZA, ELENA
core  

Mitral Valve Insufficiency [PDF]

, 2020
openaire   +1 more source