Echocardiographic Evaluation of Left Ventricular Contractility

1980 ◽  
pp. 44-51 ◽  
Author(s):  
M. A. Quinones
Keyword(s):  
Left Ventricular ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility ◽  
Echocardiographic Evaluation

Echocardiographic evaluation of left ventricular contractility in chagas'disease

1995 ◽  
Vol 8 (3) ◽  
pp. 381
Author(s):  
Oswaldo C. Almeida-Filho ◽  
André Schmidt ◽  
José A. Marin-Neto ◽  
Benedito C. Maciel
Keyword(s):  
Left Ventricular ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility ◽  
Echocardiographic Evaluation

Validation of three‐dimensional echocardiographic principal strain analysis for assessing left ventricular contractility: An animal study

2019 ◽  
Vol 46 (5) ◽  
pp. 2137-2144
Author(s):  
Sahmin Lee ◽  
Seunghyun Choi ◽  
Sehwan Kim ◽  
Yeongjin Jeong ◽  
Kyusup Lee ◽  
...  
Keyword(s):  
Animal Study ◽  
Three Dimensional ◽  
Strain Analysis ◽  
Left Ventricular ◽  
Principal Strain ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility

scholarly journals Myocardial work index: a marker of left ventricular contractility in pressure‐induced or volume overload‐induced heart failure

2021 ◽  
Author(s):  
Bálint Károly Lakatos ◽  
Mihály Ruppert ◽  
Márton Tokodi ◽  
Attila Oláh ◽  
Szilveszter Braun ◽  
...  
Keyword(s):  
Heart Failure ◽  
Volume Overload ◽  
Left Ventricular ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility ◽  
Work Index

scholarly journals Author Correction: Aortic acceleration as a noninvasive index of left ventricular contractility in the mouse

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jorge Enrique Tovar Perez ◽  
Jesus Ortiz-Urbina ◽  
Celia Pena Heredia ◽  
Thuy T. Pham ◽  
Sridhar Madala ◽  
...  
Keyword(s):  
Left Ventricular ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Abnormalities of left ventricular contractility in isolated right ventricular overload

1972 ◽  
Vol 29 (2) ◽  
pp. 288-289 ◽  
Author(s):  
Antone Salel ◽  
Dean T. Mason ◽  
Ezra A. Amsterdam ◽  
Robert F. Zelis
Keyword(s):  
Right Ventricular ◽  
Left Ventricular ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility

Transesophageal stress echocardiography: Detection of coronary artery disease in patients with normal resting left ventricular contractility

1991 ◽  
Vol 122 (5) ◽  
pp. 1456-1463 ◽  
Author(s):  
Miguel Zabalgoitia ◽  
Dipeshkumar K. Gandhi ◽  
Pierre Abi-Mansour ◽  
Paul R. Yarnold ◽  
Bassam Moushmoush ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Stress Echocardiography ◽  
Left Ventricular ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility ◽  
Artery Disease

scholarly journals EFFECT OF POSITIVE END-EXPIRATORY PRESSURE ON LEFT VENTRICULAR CONTRACTILITY

1988 ◽  
Vol 69 (3A) ◽  
pp. A164-A164
Author(s):  
W. E. Johnston ◽  
J. Vinten-Johansen ◽  
R. A. Strickland ◽  
W. P. Santamore ◽  
W. C. Little
Keyword(s):  
Left Ventricular ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility ◽  
Positive End Expiratory Pressure

scholarly journals Blood pressure reduction after gastric bypass surgery is explained by a decrease in cardiac output

2017 ◽  
Vol 122 (2) ◽  
pp. 223-229 ◽  
Author(s):  
Peter M. van Brussel ◽  
Bas van den Bogaard ◽  
Barbara A. de Weijer ◽  
Jasper Truijen ◽  
C.T. Paul Krediet ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Gastric Bypass ◽  
Body Weight ◽  
Cardiac Output ◽  
Baroreflex Sensitivity ◽  
Bypass Surgery ◽  
Gastric Bypass Surgery ◽  
Left Ventricular ◽  
Ventricular Contractility ◽  
Left Ventricular Contractility

Blood pressure (BP) decreases in the first weeks after Roux-and-Y gastric bypass surgery. Yet the pathophysiology of the BP-lowering effects observed after gastric bypass surgery is incompletely understood. We evaluated BP, systemic hemodynamics, and baroreflex sensitivity in 15 obese women[mean age 42 ± 7 standard deviation (SD) yr, body mass index 45 ± 6 kg/m2] 2 wk before and 6 wk following Roux-and-Y gastric bypass surgery. Six weeks after gastric bypass surgery, mean body weight decreased by 13 ± 5 kg (10%, P < 0.001). Office BP decreased from 137 ± 10/86 ± 6 to 128 ± 12/81 ± 9 mmHg ( P < 0.001, P < 0.01), while daytime ambulatory BP decreased from 128 ± 14/80 ± 9 to 114 ± 10/73 ± 6 mmHg ( P = 0.01, P = 0.05), whereas nighttime BP decreased from 111 ± 13/66 ± 7 to 102 ± 9/62 ± 7 mmHg ( P = 0.04, P < 0.01). The decrease in BP was associated with a 1.6 ± 1.2 l/min (20%, P < 0.01) decrease in cardiac output (CO), while systemic vascular resistance increased (153 ± 189 dyn·s·cm−5, 15%, P < 0.01). The maximal ascending slope in systolic blood pressure decreased (192 mmHg/s, 19%, P = 0.01), suggesting a reduction in left ventricular contractility. Baroreflex sensitivity increased from 9.0 [6.4–14.3] to 13.8 [8.5–19.0] ms/mmHg (median [interquartile range]; P < 0.01) and was inversely correlated with the reductions in heart rate ( R = −0.64, P = 0.02) and CO ( R = −0.61, P = 0.03). In contrast, changes in body weight were not correlated with changes in either BP or CO. The BP reduction following Roux-and-Y gastric bypass surgery is correlated with a decrease in CO independent of changes in body weight. The contribution of heart rate to the reduction in CO together with enhanced baroreflex sensitivity suggests a shift toward increased parasympathetic cardiovascular control. NEW & NOTEWORTHY The reason for the decrease in blood pressure (BP) in the first weeks after gastric bypass surgery remains to be elucidated. We show that the reduction in BP following surgery is caused by a decrease in cardiac output. In addition, the maximal ascending slope in systolic blood pressure decreased suggesting a reduction in left ventricular contractility and cardiac workload. These findings help to understand the physiological changes following gastric bypass surgery and are relevant in light of the increased risk of heart failure in these patients.

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