scholarly journals Right Ventricular Pacing and Mechanical Dyssynchrony

10.5772/28691 ◽  
2012 ◽  
Author(s):  
Kevin V. ◽  
Ryan M. ◽  
Alan J.
Keyword(s):  
Right Ventricular ◽  
Mechanical Dyssynchrony ◽  
Ventricular Pacing ◽  
Right Ventricular Pacing

Right Ventricular Pacing With Mechanical Dyssynchrony Causes Apoptosis Interruptus and Calcium Mishandling

2013 ◽  
Vol 29 (4) ◽  
pp. 510-518 ◽  
Author(s):  
Didier Klug ◽  
Stephane Boule ◽  
Ludivine Wissocque ◽  
David Montaigne ◽  
Xavier Marechal ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Mechanical Dyssynchrony ◽  
Ventricular Pacing ◽  
Right Ventricular Pacing

Right Ventricular Pacing, Mechanical Dyssynchrony, and Heart Failure

2011 ◽  
Vol 5 (2) ◽  
pp. 219-231 ◽  
Author(s):  
Alan J. Bank ◽  
Ryan M. Gage ◽  
Kevin V. Burns
Keyword(s):  
Heart Failure ◽  
Right Ventricular ◽  
Mechanical Dyssynchrony ◽  
Ventricular Pacing ◽  
Right Ventricular Pacing

scholarly journals Role of coronary flow regulation and cardiac-coronary coupling in mechanical dyssynchrony associated with right ventricular pacing

2020 ◽  
Author(s):  
Lei Fan ◽  
Ravi Namani ◽  
Jenny S. Choy ◽  
Yousif Awakeem ◽  
Ghassan S. Kassab ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Coronary Flow ◽  
Flow Regulation ◽  
Mechanical Dyssynchrony ◽  
Left Ventricular ◽  
Right Atrial ◽  
Coronary Perfusion ◽  
Ventricular Pacing ◽  
Right Ventricular Pacing ◽  
Passive Flow

Mechanical dyssynchrony (MD) affects left ventricular (LV) mechanics and coronary perfusion. To understand the multifactorial effects of MD, we developed a computational model that bi-directionally couples the systemic circulation with the LV and coronary perfusion with flow regulation. In the model, coronary flow in the left anterior descending (LAD) and left circumflex (LCX) arteries affects the corresponding regional contractility based on a prescribed linear LV contractility-coronary flow relationship. The model is calibrated with experimental measurements of LV pressure and volume, as well as LAD and LCX flow rate waveforms acquired under regulated and fully dilated conditions from a swine under right atrial (RA) pacing. The calibrated model is applied to simulate MD. The model can simultaneously reproduce the reduction in mean LV pressure (39.3%), regulated flow (LAD: 7.9%; LCX 1.9%), LAD passive flow (21.6%) and increase in LCX passive flow (15.9%). These changes are associated with right ventricular pacing compared to RA pacing measured in the same swine only when LV contractility is affected by flow alterations with a slope of 1.4 mmHg/ml2 in a contractility-flow relationship. In sensitivity analyses, the model predicts that coronary flow reserve (CFR) decreases and increases in the LAD and LCX with increasing delay in LV free wall contraction. These findings suggest that asynchronous activation associated with MD impacts (1) the loading conditions that further affect the coronary flow, which may explain some of the changes in , and (2) the coronary flow that reduces global contractility, which contributes to the reduction in LV pressure.

Extra-anatomic Course of a Right Ventricular Pacing Lead: Clinical Implications

2016 ◽  
Vol 32 (6) ◽  
pp. 830.e5-830.e6
Author(s):  
Pierre-Louis Nadeau ◽  
Jean Champagne ◽  
Franck Molin ◽  
Jean-François Sarrazin ◽  
Gilles O’Hara ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Clinical Implications ◽  
Ventricular Pacing ◽  
Right Ventricular Pacing ◽  
Pacing Lead

Late Presentation of Migrated Right Ventricular Pacing Lead

2021 ◽  
Vol 30 ◽  
pp. S256-S257
Author(s):  
R. O'Driscoll ◽  
Q. Yang ◽  
M. Zhu ◽  
G. McKay ◽  
R. Tan
Keyword(s):  
Right Ventricular ◽  
Late Presentation ◽  
Ventricular Pacing ◽  
Right Ventricular Pacing ◽  
Pacing Lead

scholarly journals Ventricular activation pattern assessment during right ventricular pacing: Ultra‐high‐frequency ECG study

2021 ◽  
Author(s):  
Karol Curila ◽  
Pavel Jurak ◽  
Josef Halamek ◽  
Frits Prinzen ◽  
Petr Waldauf ◽  
...  
Keyword(s):  
Right Ventricular ◽  
High Frequency ◽  
Ventricular Pacing ◽  
Activation Pattern ◽  
Right Ventricular Pacing ◽  
Ultra High Frequency ◽  
Ventricular Activation

scholarly journals Unusual transmitral Doppler filling profile induced by right ventricular pacing

2021 ◽  
Vol 14 (3) ◽  
pp. e242539
Author(s):  
Hammam Shereef ◽  
Ahmed Subahi ◽  
Mohit Pahuja ◽  
Luis Afonso
Keyword(s):  
Right Ventricular ◽  
Ventricular Pacing ◽  
Right Ventricular Pacing
Sign in / Sign up

Export Citation Format

Share Document