Bachmann's Bundle and Coronary Sinus Ostial Pacing Accentuate Left Atrial Electrical Dyssynchrony in an Acute Canine Model

2014 ◽  
Vol 25 (12) ◽  
pp. 1400-1406
Author(s):  
INDRAJIT CHOUDHURI ◽  
DAVID KRUM ◽  
ANUJ AGARWAL ◽  
JOHN HARE ◽  
MAREK BELOHLAVEK ◽  
...  
Keyword(s):  
Coronary Sinus ◽  
Left Atrial ◽  
Canine Model ◽  
Bachmann’S Bundle

scholarly journals Left Circumflex Artery Rupture with Left Atrial Tamponade and Functional Mitral Stenosis

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Weiting Huang ◽  
Khaled Mohamed Emadeldin Moheb Hammad ◽  
Victor Tar Toong Chao ◽  
Khung Keong Yeo
Keyword(s):  
Left Atrium ◽  
Coronary Sinus ◽  
Mitral Stenosis ◽  
Left Atrial ◽  
Pulmonary Veins ◽  
Fluid Collection ◽  
Artery Dissection ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
Coronary Syndrome

The growth in percutaneous transluminal devices has enabled operators to tackle more complex, native, and post-bypass surgery anatomy. However, complications such as coronary artery dissection, coronary perforation, retrograde aortic dissection, arrhythmias, and acute coronary syndrome still occur with resulting mortality rates of up to 4.2% in complex interventions. Perforation of the circumflex artery is of particular interest in view of its position and relation to the surrounding cardiac structures. This is a site of potential fluid collection, and as the left atrium is fixed to the parietal pericardium at the entry of the pulmonary veins, fluid in the oblique sinus can accumulate enough pressure to compress the left atrium and the coronary sinus. We present a case of left circumflex artery perforation which demonstrates the physiologic complications of coronary sinus and left atrial compression and the resultant functional mitral stenosis.

P waves and P loops in coronary sinus and left atrial rhythms

1970 ◽  
Vol 79 (2) ◽  
pp. 201-214 ◽  
Author(s):  
Sun Hing Lau ◽  
Stafford I. Cohen ◽  
Emanuel Stein ◽  
Jacob I. Haft ◽  
Kenneth M. Rosen ◽  
...  
Keyword(s):  
Coronary Sinus ◽  
Left Atrial ◽  
P Waves

Effects of hypertrophy on left atrial and ventricular compliance and plasma ANF levels in conscious dogs

1995 ◽  
Vol 268 (2) ◽  
pp. H781-H787 ◽  
Author(s):  
N. Hasebe ◽  
L. Hittinger ◽  
S. Kohin ◽  
Y. T. Shen ◽  
R. M. Graham ◽  
...  
Keyword(s):  
Coronary Sinus ◽  
Left Atrial ◽  
Volume Expansion ◽  
Diastolic Pressure ◽  
Systemic Circulation ◽  
Left Ventricular ◽  
Conscious Dogs ◽  
Volume Loading ◽  
Volume Depletion ◽  
Ventricular Compliance

Alterations in left atrial (LA) and left ventricular (LV) compliance and arterial and coronary sinus atrial natriuretic factor (ANF) concentrations at baseline and in response to both volume depletion and expansion were investigated in 15 conscious dogs with aortic banding-induced LV hypertrophy (LVH) (LV/body wt increased by 64%), which also induced LAH (LA/body wt increased by 61%). With volume expansion coronary sinus ANF increased more (P < 0.05) in dogs with LVH (+427 +/- 88 pg/ml) compared with control dogs (+146 +/- 45 pg/ml). Arterial ANF levels also rose more with volume expansion in LVH. In dogs with LVH, the LV end-diastolic pressure-diameter relationship was shifted to the left with a steeper slope with volume expansion, such that at any given diastolic dimension, diastolic pressure was higher. In contrast, the pressure-dimension relationship for the LA appendage was shifted in the opposite direction during both atrial systolic and diastolic phases, with a more shallow slope in hypertrophy compared with control dogs, resulting in an augmented pressure-dimension product during volume loading in LAH. In conclusion, in dogs with LVH and LAH, enhanced ANF was revealed in the coronary sinus and systemic circulation during volume expansion, which could be due, in part, to a more compliant, but hypertrophied, LA, which responded to equivalent volume loading with an augmented pressure-dimension product.

Left atrial systolic function in relation to electrical and mechanical remodeling in a canine model

2001 ◽  
Vol 442 (7) ◽  
pp. r195-r197 ◽  
Author(s):  
Igor Zupan ◽  
Mirta Koželj ◽  
Aleš Brecelj ◽  
Peter Rakovec ◽  
Irena Preložnik Zupan
Keyword(s):  
Left Atrial ◽  
Systolic Function ◽  
Canine Model ◽  
Mechanical Remodeling

scholarly journals LONG-TERM SAFETY AND BIOCOMPATIBILITY OF THE COHEREX WAVECRESTTM LEFT ATRIAL APPENDAGE OCCLUDER IN A CANINE MODEL

2014 ◽  
Vol 63 (12) ◽  
pp. A1677 ◽  
Author(s):  
Yanping Cheng ◽  
Jennifer McGregor ◽  
Daryl Edmiston ◽  
Robert Sommer ◽  
William Gray ◽  
...  
Keyword(s):  
Left Atrial ◽  
Left Atrial Appendage ◽  
Canine Model ◽  
Atrial Appendage

First in vivo evaluation of a flexible self-apposing left atrial appendage closure device in the canine model

2015 ◽  
Vol 86 (1) ◽  
pp. 173-181 ◽  
Author(s):  
Yanping Cheng ◽  
Gerard Conditt ◽  
Genghua Yi ◽  
Armando Tellez ◽  
Michael Corcoran ◽  
...  
Keyword(s):  
Left Atrial ◽  
Left Atrial Appendage ◽  
Canine Model ◽  
Atrial Appendage ◽  
Closure Device ◽  
Left Atrial Appendage Closure ◽  
In Vivo Evaluation
Sign in / Sign up

Export Citation Format

Share Document