Correlation between Left Ventricular End-diastolic Pressure and Peak Left Atrial Wall Strain during Left Ventricular Systole

2009 ◽  
Vol 22 (7) ◽  
pp. 847-851 ◽  
Author(s):  
Kazuaki Wakami ◽  
Nobuyuki Ohte ◽  
Kaoru Asada ◽  
Hidekatsu Fukuta ◽  
Toshihiko Goto ◽  
...  
Keyword(s):  
Left Atrial ◽  
Diastolic Pressure ◽  
Left Ventricular ◽  
Atrial Wall ◽  
Ventricular Systole ◽  
Left Atrial Wall ◽  
Left Ventricular Systole

Effect of Ca on duration of Q-T interval and ventricular systole in dog

1963 ◽  
Vol 205 (4) ◽  
pp. 785-789 ◽  
Author(s):  
Borys Surawicz
Keyword(s):  
Diastolic Pressure ◽  
Left Ventricular ◽  
Filling Pressure ◽  
Similar Magnitude ◽  
Volume Changes ◽  
Ventricular Systole ◽  
Wide Range ◽  
Ventricular Filling Pressure ◽  
Left Ventricular Systole ◽  
Ventricular Filling

The relation between the duration of the Q-T interval and of the left ventricular systole was studied in dogs with induced hypo- and hypercalcemia. At all studied Ca concentrations the change in the duration of both intervals was of similar magnitude and the relation between the duration of Q-T and ventricular systole was nearly constant as long as the heart rate was regular and the ventricular end-diastolic pressure did not change abruptly. Changes in the Q-T duration were due to changes in the duration of the interval from the end of QRS to the apex of T. In the postextrasystolic beats and during alternans the duration of left ventricular systole changed independently of the duration of the Q-T interval. It was concluded that the ventricular systole adjusts its duration to the duration of repolarization, more specifically to the duration of the plateau of the ventricular action potential, within a wide range of Ca concentrations. An escape from this adjustment occurs when the ventricular filling pressure or volume changes abruptly.

Effects of systemic hypertension and left ventricular hypertrophy on posterior left atrial wall motion

1986 ◽  
Vol 58 (11) ◽  
pp. 1115-1117 ◽  
Author(s):  
Shirley Rubler ◽  
Keith D. Meyer ◽  
Mark Gabry ◽  
Lynne A. Glasser ◽  
John M. Reitano
Keyword(s):  
Left Ventricular Hypertrophy ◽  
Left Atrial ◽  
Ventricular Hypertrophy ◽  
Wall Motion ◽  
Left Ventricular ◽  
Systemic Hypertension ◽  
Atrial Wall ◽  
Left Atrial Wall

Hemodynamic effects of altering the timing of atrial systole

1963 ◽  
Vol 205 (3) ◽  
pp. 499-503 ◽  
Author(s):  
N. Sheldon Skinner ◽  
Jere H. Mitchell ◽  
Andrew G. Wallace ◽  
Stanley J. Sarnoff
Keyword(s):  
Left Atrial ◽  
Diastolic Pressure ◽  
Aortic Pressure ◽  
Left Ventricular ◽  
Atrial Pressure ◽  
Left Atrial Pressure ◽  
Hemodynamic Effects ◽  
Ventricular Systole ◽  
Ventricular Filling ◽  
Atrial Systole

The use of heart block dog preparations allowed an investigation at constant ventricular rates of the hemodynamic effects which resulted when the timing of atrial systole was altered relative to ventricular systole. Ganglionic blockade and vagotomy precluded sympathetic reflex compensation in these animals. Lengthening or shortening the interval between left atrial and left ventricular systole (As-Vs interval) produced a decrease in left ventricular end-diastolic pressure (LVEDP), mean aortic pressure, and aortic flow. Mean left atrial pressure (MLAP) increased as did the relation of MLAP to LVEDP. The absence of atrial systole produced similar changes. Lengthening or shortening the As-Vs interval while holding aortic pressure and stroke volume constant resulted in an increase in MLAP and the relation of MLAP to LVEDP. The changes observed in the left atrial pressure tracings suggested and a platinum electrode technique demonstrated that mitral regurgitation can occur with improper timing of atrial systole. The data indicate that properly timed, effective atrial activity can enhance ventricular filling and can preclose the atrioventricular valve.

scholarly journals Formation of Low Voltage Zones on the Anterior Left Atrial Wall Due to Mechanical Compression by the Ascending Aorta

2021 ◽  
Author(s):  
Satoshi Hayashida ◽  
Koichi Nagashima ◽  
Sayaka Kurokawa ◽  
Masaru Arai ◽  
Ryuta Watanabe ◽  
...  
Keyword(s):  
Left Atrial ◽  
Low Voltage ◽  
Ascending Aorta ◽  
Mechanical Compression ◽  
Atrial Wall ◽  
Left Atrial Wall

Left ventricular end-diastolic pressure is associated with left atrial functional measures by echocardiography

2021 ◽  
Author(s):  
Flemming Javier Olsen ◽  
Rasmus Møgelvang ◽  
Martina Chantal de Knegt ◽  
Søren Galatius ◽  
Sune Pedersen ◽  
...  
Keyword(s):  
Left Atrial ◽  
Diastolic Pressure ◽  
Left Ventricular ◽  
Functional Measures

Left Atrial Wall Hematoma as a Consequence of Percutaneous Coronary Angioplasty

2012 ◽  
Vol 93 (3) ◽  
pp. e57-e59 ◽  
Author(s):  
Giovanni Domenico Cresce ◽  
Diletta Peluso ◽  
Marco Panfili ◽  
Alessandro Favaro ◽  
Antonio Cannarella ◽  
...  
Keyword(s):  
Coronary Angioplasty ◽  
Left Atrial ◽  
Atrial Wall ◽  
Percutaneous Coronary Angioplasty ◽  
Left Atrial Wall ◽  
Percutaneous Coronary

Congenital aneurysm of the left atrial wall in infancy

1990 ◽  
Vol 49 (3) ◽  
pp. 476-478 ◽  
Author(s):  
Kenneth S. Stone ◽  
John W. Brown ◽  
David Canal ◽  
Randy Caldwell ◽  
Roger Hurwitz ◽  
...  
Keyword(s):  
Left Atrial ◽  
Atrial Wall ◽  
Left Atrial Wall
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