Atrial function left. Medical search

The hemodynamic and electrophysiological action of the LEFT ATRIUM.

The hemodynamic and electrophysiological action of the HEART ATRIA.

The hemodynamic and electrophysiological action of the RIGHT ATRIUM.

The chambers of the heart, to which the BLOOD returns from the circulation.

Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.

Measurement of intracardiac blood flow using an M-mode and/or two-dimensional (2-D) echocardiogram while simultaneously recording the spectrum of the audible Doppler signal (e.g., velocity, direction, amplitude, intensity, timing) reflected from the moving column of red blood cells.

Echocardiography applying the Doppler effect, with velocity detection combined with range discrimination. Short bursts of ultrasound are transmitted at regular intervals and the echoes are demodulated as they return.

Surgical excision (total or partial) of a portion of the pericardium. Pericardiotomy refers to incision of the pericardium.

An electrical current applied to the HEART to terminate a disturbance of its rhythm, ARRHYTHMIAS, CARDIAC. (Stedman, 25th ed)

The hemodynamic and electrophysiological action of the left HEART VENTRICLE. Its measurement is an important aspect of the clinical evaluation of patients with heart disease to determine the effects of the disease on cardiac performance.

Contractile activity of the MYOCARDIUM.

Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.

Examinations used to diagnose and treat heart conditions.

Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.

The hemodynamic and electrophysiological action of the HEART VENTRICLES.

The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.

The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material).

A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.

The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.

A condition in which the LEFT VENTRICLE of the heart was functionally impaired. This condition usually leads to HEART FAILURE; MYOCARDIAL INFARCTION; and other cardiovascular complications. Diagnosis is made by measuring the diminished ejection fraction and a depressed level of motility of the left ventricular wall.

Enlargement of the LEFT VENTRICLE of the heart. This increase in ventricular mass is attributed to sustained abnormal pressure or volume loads and is a contributor to cardiovascular morbidity and mortality.

Echocardiography amplified by the addition of depth to the conventional two-dimensional ECHOCARDIOGRAPHY visualizing only the length and width of the heart. Three-dimensional ultrasound imaging was first described in 1961 but its application to echocardiography did not take place until 1974. (Mayo Clin Proc 1993;68:221-40)

A pathological constriction that can occur above (supravalvular stenosis), below (subvalvular stenosis), or at the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.

Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.

The downward displacement of the cuspal or pointed end of the trileaflet AORTIC VALVE causing misalignment of the cusps. Severe valve distortion can cause leakage and allow the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to aortic regurgitation.

Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).

Compounds that inhibit HMG-CoA reductases. They have been shown to directly lower cholesterol synthesis.

Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.

Method in which repeated blood pressure readings are made while the patient undergoes normal daily activities. It allows quantitative analysis of the high blood pressure load over time, can help distinguish between types of HYPERTENSION, and can assess the effectiveness of antihypertensive therapy.

Ear-shaped appendage of either atrium of the heart. (Dorland, 28th ed)

Obstruction of a blood vessel (embolism) by a blood clot (THROMBUS) in the blood stream.

Ultrasonography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image. This type of ultrasonography is well-suited to identifying the location of high-velocity flow (such as in a stenosis) or of mapping the extent of flow in a certain region.

Echocardiography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image.

A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.

Computer-based systems for use in personnel management in a facility, e.g., distribution of caregivers with relation to patient needs.

The hollow, muscular organ that maintains the circulation of the blood.

A voluntary organization concerned with the prevention and treatment of heart and vascular diseases.

Effects of pacing-induced and balloon coronary occlusion ischemia on left atrial function in patients with coronary artery disease. (1/343)

OBJECTIVES: The aim of this study was to compare left atrial (LA) function in 16 patients with distal left anterior descending (LAD) and in 16 patients with proximal left circumflex (LCx) coronary artery stenosis at rest and immediately after pacing-induced tachycardia (LAD-pacing [P] and LCx-P) or coronary occlusion (LAD-CO and LCx-CO). BACKGROUND: During left ventricular (LV) ischemia, compensatory augmentation of LA contraction enhances LV filling and performance. The left atrium is supplied predominantly by branches arising from the LCx. Therefore, we hypothesized that one mechanism for the loss of atrial contraction may be ischemic LA dysfunction. METHODS: Left ventricular and LA pressure-area relations were derived from simultaneous double-tip micromanometer pressure recordings and automatic boundary detection echocardiograms. RESULTS: Immediately after pacing or after coronary occlusion, LV end-diastolic pressure, LV relaxation, LA mean pressure and LV stiffness significantly increased in all patients. However, the area of the A loop of the LA pressure-area relation, representing the LA pump function, significantly decreased in groups LCx-P and LCx-CO (from 14+/-3 to 9+/-2, and from 16+/-4 to 9+/-2 mm Hg.cm2, respectively, p < 0.05), whereas it increased in groups LAD-P and LAD-CO (from 12+/-3 to 54+/-10, and from 16+/-3 to 49+/-8 mm Hg.cm2, respectively, p < 0.001). CONCLUSIONS: In patients with LAD stenosis, LV supply or demand ischemia is associated with enhanced LA pump function. However, in patients with proximal LCx stenosis who develop the same type and degree of ischemia, LA branches might have been affected, rendering the LA ischemic and unable to increase its booster pump function. (+info)

Pulmonary venous flow in hypertrophic cardiomyopathy as assessed by the transoesophageal approach. The additive value of pulmonary venous flow and left atrial size variables in estimating the mitral inflow pattern in hypertrophic cardiomyopathy. (2/343)

AIMS: This study was conducted to assess the characteristics of the pattern of pulmonary venous flow and to document the interaction of this flow and left atrial function with the pattern of mitral inflow in hypertrophic cardiomyopathy. METHODS AND RESULTS: Pulmonary venous and mitral flows were evaluated by the transoesophageal approach in 80 patients with hypertrophic cardiomyopathy. Left atrial size and function were measured by the transthoracic approach. Their values were compared with those obtained from 35 normal controls. Twelve patients showed significant (> 2+) mitral regurgitation. As a group, hypertrophic cardiomyopathy patients showed increased atrial reversal flow and longer deceleration time of the diastolic wave, but a wide variability of pulmonary venous flow patterns were observed. Thirty patients (37.5%) had pseudonormal mitral flow patterns. Stepwise multilinear regression analysis identified the ratio of systolic to diastolic pulmonary venous flow velocity, the ratio of velocity-time integrals of both flow waves at atrial contraction, the left atrial minimal volume and the systolic fraction as independent predictive variables of the mitral E/A wave velocity ratio (r = 0.82). By logistic regression, the former three variables were selected as independent predictive covariates of a pseudonormal mitral flow pattern (sensitivity: 83%, specificity: 90%). The ratio of velocity-time integrals of both atrial waves was the most important predictive variable in both analyses. CONCLUSIONS: The observed variability in the configuration of pulmonary venous flow velocity waveform is related to what occurs in transmitral flow in patients with hypertrophic cardiomyopathy. Significant mitral regurgitation is not an independent correlate of pseudonormal mitral inflow patterns in these patients. Our results further emphasize the complementary, additive value of the pulmonary venous flow velocity pattern and left atrial size in the interpretation of the mitral flow velocity pattern, and indirectly suggest the underlying increased left ventricular filling pressures of patients with hypertrophic cardiomyopathy and pseudonormal mitral flow patterns. (+info)

Doppler sonographic evaluation of left atrial function after cardioversion of atrial fibrillation. (3/343)

Restoration of sinus rhythm is not always followed by immediate return of effective atrial contraction. Left atrial mechanical function can be assessed by Doppler echocardiography; in the present study we measured the atrial ejection force, which is a noninvasive Doppler-derived parameter that measures the strength of atrial contraction. The aim of the present study was to evaluate the influence of clinical and echocardiographic parameters: duration and cause of atrial fibrillation, different modality of cardioversion, and left atrial size with respect to the delay in the return of effective atrial contraction after cardioversion. Seventy patients were randomly chosen to undergo cardioversion by either direct current shock or intravenously administered procainamide hydrochloride. The 52 patients who had sinus rhythm restored underwent a complete Doppler echocardiographic examination 1 h after the restoration of sinus rhythm and after 1 day, 7 days, and 1 month. The relation between clinical variables and atrial ejection force was tested. Atrial ejection force was greater immediately and 24 h after cardioversion in patients who underwent pharmacologic therapy compared to patients treated with direct current shock (11.3+/-3 versus 5+/-2.9 dynes; P<0.001). In both groups atrial ejection force increased over time. The mode of cardioversion was significantly associated with recovery of left atrial mechanical function by day 1 in univariate and multivariate analysis (odds ratio, 0.14; 95% confidence interval, 0.02-1.2). The other variable associated with the delay in the recovery of atrial function was a dilated left atrium (odds ratio, 0.16; 95% confidence interval, 0.12-1.6). Atrial ejection force is a noninvasive parameter that can be easily measured after cardioversion and gives accurate information about the recovery of left atrial mechanical function. The recovery of left atrial function was influenced by the mode of cardioversion and left atrial size. (+info)

Importance of left atrial appendage flow as a predictor of thromboembolic events in patients with atrial fibrillation. (4/343)

AIM: The purpose of this study was to investigate the role of transoesophageal echocardiography in predicting subsequent thromboembolic events in patients with atrial fibrillation. METHODS AND PATIENTS: Transoesophageal echocardiography was performed in 88 patients with documented paroxysmal (n=53) or chronic atrial fibrillation (n=35) to assess morphological and functional predictors of thromboembolic events. Prospective selection was from patients with non-valvular atrial fibrillation who had undergone transoesophageal echocardiography because of previous thromboembolism (n=30); prior to electrical cardioversion (n=31); or for other reasons (n=27). All patients were followed up for 1 year. RESULTS: During the period of follow-up new thromboembolic events occurred in 18 of 88 patients (20%/year); 16 of these patients had a stroke and two a peripheral embolism. Univariate analysis revealed that previous thromboembolism (P<0.005; odds ratio 5.3 [CI 1.9, 12. 1]), history of hypertension (P<0.01; odds ratio 4.0 [CI 1.4, 10.4), presence of left atrial spontaneous echo contrast (P<0.025; odds ratio 3.5 [CI 1.2, 10.0]), and presence of left atrial appendage peak velocity +info)

Short-term effect of atrial fibrillation on atrial contractile function in humans. (5/343)

BACKGROUND: Conversion of chronic atrial fibrillation (AF) is associated with atrial stunning, but the short-term effect of a brief episode of AF on left atrial appendage (LAA) emptying velocity is unknown. The purpose of this study was to determine whether a short episode of AF affects left atrial function and whether verapamil modifies this effect. METHODS AND RESULTS: The subjects of this study were 19 patients without structural heart disease undergoing an electrophysiology procedure. In 13 patients, LAA emptying velocity was measured by transesophageal echocardiography in the setting of pharmacological autonomic blockade before, during, and after a short episode of AF. During sinus rhythm, the baseline LAA emptying velocity was measured 5 times and averaged. AF was then induced by rapid right atrial pacing. After either spontaneous or electrical conversion, LAA emptying velocity was measured immediately on resumption of sinus rhythm and every minute thereafter. The mean duration of AF was 15.3+/-3.8 minutes. The mean baseline emptying velocity was 70+/-20 cm/s. The first post-AF emptying velocity was 63+/-20 cm/s (P=0.02 versus baseline emptying velocity). The post-AF emptying velocity returned to the baseline emptying velocity value after 3.0 minutes. The mean percent reduction in post-AF emptying velocity was 9.7+/-21% (range, 15% increase to 56% decrease). A second group of 6 patients were pretreated with verapamil (0.1-mg/kg IV bolus followed by an infusion of 0.005 mg. kg-1. min-1). In these patients, the first post-AF emptying velocity, 58+/-14 cm/s, was not significantly different from the pre-AF emptying velocity, 60+/-13 cm/s (P=0.08). CONCLUSIONS: In humans, several minutes of AF may be sufficient to induce atrial contractile dysfunction after cardioversion. When atrial contractile dysfunction occurs, there is recovery of AF within several minutes. AF-induced contractile dysfunction is attenuated by verapamil and may be at least partially mediated by cellular calcium overload. (+info)

Left atrial relaxation and left ventricular systolic function determine left atrial reservoir function. (6/343)

BACKGROUND: Determinants of left atrial (LA) reservoir function and its influence on left ventricular (LV) function have not been quantified. METHODS AND RESULTS: In an open-pericardium, paced (70 and 90 bpm) pig model of LV regional ischemia (left anterior descending coronary constriction), with high-fidelity LV, LA, and RV pressure recordings, we obtained the LA area with 2D automated border detection echocardiography, LA pressure-area loops, and Doppler transmitral flow. We calculated LV tau, LA relaxation (a-x pressure difference divided by time, normalized by a pressure), and stiffness (slope between x and v pressure points of v loop). Determinants of total LA reservoir (maximum-minimum area, cm(2)) were identified by multiple regression analysis. Different mean rates of LA area increase identified 2 consecutive (early rapid and late slow) reservoir phases. During ischemia, LV long-axis shortening (LAS, LV base systolic descent) and LA reservoir area change decreased (7.3+/-0.3 [SEM] versus 5.6+/-0.3 cm(2), P<0.001) and LA stiffness increased (1.6+/-0.3 versus 3.1+/-0.3 mm Hg/cm(2), P=0.009). Early reservoir area change depended on LA mean ejection rate (LA area at ECG P wave minus minimum area divided by time; multiple regression coefficient=0.9; P<0.001) and relaxation (coefficient=4.9 cm(2)xms/s; P<0.001). Late reservoir area change depended on LAS (coefficient=8 cm/s; P<0.001). Total reservoir filling depended on LA stiffness (coefficient=-0.31 cm(4)/mm Hg; P=0. 001) and cardiac output (coefficient=0.001 cm(2)xmin/L; P=0.002). The strongest predictor of cardiac output was LA reservoir filling (coefficient=301 L/minxcm(2); P<0.001). The v loop area was determined by cardiac output, LV ejection time, tau, and early transmitral flow. CONCLUSIONS: Two (early and late) reservoir phases are determined by LA contraction and relaxation and LV base descent. Acute LV regional ischemia increases LA stiffness and impairs LA reservoir function by reducing LV base descent. (+info)

Noninvasive assessment of left atrial maximum dP/dt by a combination of transmitral and pulmonary venous flow. (7/343)

OBJECTIVES: The study assessed whether hemodynamic parameters of left atrial (LA) systolic function could be estimated noninvasively using Doppler echocardiography. BACKGROUND: Left atrial systolic function is an important aspect of cardiac function. Doppler echocardiography can measure changes in LA volume, but has not been shown to relate to hemodynamic parameters such as the maximal value of the first derivative of the pressure (LA dP/dt(max)). METHODS: Eighteen patients in sinus rhythm were studied immediately before and after open heart surgery using simultaneous LA pressure measurements and intraoperative transesophageal echocardiography. Left atrial pressure was measured with a micromanometer catheter, and LA dP/dt(max) during atrial contraction was obtained. Transmitral and pulmonary venous flow were recorded by pulsed Doppler echocardiography. Peak velocity, and mean acceleration and deceleration, and the time-velocity integral of each flow during atrial contraction was measured. The initial eight patients served as the study group to derive a multilinear regression equation to estimate LA dP/dt(max) from Doppler parameters, and the latter 10 patients served as the test group to validate the equation. A previously validated numeric model was used to confirm these results. RESULTS: In the study group, LA dP/dt(max) showed a linear relation with LA pressure before atrial contraction (r = 0.80, p < 0.005), confirming the presence of the Frank-Starling mechanism in the LA. Among transmitral flow parameters, mean acceleration showed the strongest correlation with LA dP/dt(max) (r = 0.78, p < 0.001). Among pulmonary venous flow parameters, no single parameter was sufficient to estimate LA dP/dt(max) with an r2 > 0.30. By stepwise and multiple linear regression analysis, LA dP/dt(max) was best described as follows: LA dP/dt(max) = 0.1 M-AC +/- 1.8 P-V - 4.1; r = 0.88, p < 0.0001, where M-AC is the mean acceleration of transmitral flow and P-V is the peak velocity of pulmonary venous flow during atrial contraction. This equation was tested in the latter 10 patients of the test group. Predicted and measured LA dP/dt(max) correlated well (r = 0.90, p < 0.0001). Numerical simulation verified that this relationship held across a wide range of atrial elastance, ventricular relaxation and systolic function, with LA dP/dt(max) predicted by the above equation with r = 0.94. CONCLUSIONS: A combination of transmitral and pulmonary venous flow parameters can provide a hemodynamic assessment of LA systolic function. (+info)

The pulmonary venous systolic flow pulse--its origin and relationship to left atrial pressure. (8/343)

OBJECTIVES: The purpose of this study was to determine the origin of the pulmonary venous systolic flow pulse using wave-intensity analysis to separate forward- and backward-going waves. BACKGROUND: The mechanism of the pulmonary venous systolic flow pulse is unclear and could be a "suction effect" due to a fall in atrial pressure (backward-going wave) or a "pushing effect" due to forward-propagation of right ventricular (RV) pressure (forward-going wave). METHODS: In eight patients during coronary surgery, pulmonary venous flow (flow probe), velocity (microsensor) and pressure (micromanometer) were recorded. We calculated wave intensity (dP x dU) as change in pulmonary venous pressure (dP) times change in velocity (dU) at 5 ms intervals. When dP x dU > 0 there is a net forward-going wave and when dP x dU < 0 there is a net backward-going wave. RESULTS: Systolic pulmonary venous flow was biphasic. When flow accelerated in early systole (S1), pulmonary venous pressure was falling, and, therefore, dP x dU was negative, -0.6 +/- 0.2 (x +/- SE) W/m2, indicating a net backward-going wave. When flow accelerated in late systole (S2), pressure was rising, and, therefore, dP x dU was positive, 0.3 +/- 0.1 W/m2, indicating a net forward-going wave. CONCLUSIONS: Pulmonary venous flow acceleration in S1 was attributed to a net backward-going wave secondary to a fall in atrial pressure. However, flow acceleration in S2 was attributed to a net forward-going wave, consistent with propagation of the RV systolic pressure pulse across the lungs. Pulmonary vein systolic flow pattern, therefore, appears to be determined by right- as well as left-sided cardiac events. (+info)

Theodorakis GN, Panou F, Markianos M, Fragakis N, Livanis EG, Kremastinos DT (February 1997). "Left atrial function and atrial ... That's due to increase in left atrial pressure and left ventricular filling pressure, which is due to decreased cardiac output ... and decreased left atrial total emptying fraction associated with ventricular pacing. The loss of physiologic timing of atrial ... Ventricular pacing is associated with elevated right and left atrial pressures, as well as elevated pulmonary venous and ...

https://en.wikipedia.org/wiki/Pacemaker_syndrome

... is a function of atrial contraction. The ratio between e' and a' is also a measure of diastolic function, in addition to the ... is a measure of left ventricular diastolic function, and has been shown to be relatively independent of left ventricular ... Before the advent of tissue Doppler, systolic function was usually assessed with ejection fraction (EF), and diastolic function ... this pressure difference is both a function of the pressure drop during early relaxation and the initial atrial pressure. In ...

https://en.wikipedia.org/wiki/Tissue_Doppler_echocardiography

Normal atrial function is essential for embryogenesis, as inactivation of the MYL7 gene was embryonic lethal at ED10.5-11.5. ... Importantly, overexpression of ALC-1 was shown to attenuate heart failure in pressure-overloaded animals, by enhancing left ... Huang C, Sheikh F, Hollander M, Cai C, Becker D, Chu PH, Evans S, Chen J (December 2003). "Embryonic atrial function is ... Atrial Light Chain-1 (ALC-1), also known as Essential Light Chain, Atrial is a protein that in humans is encoded by the MYL4 ...

https://en.wikipedia.org/wiki/MYL4

The AV node connects the atrial and ventricular chambers. It functions to carry the electrical impulse from the atria to the ... While the left abdominal air sac is large and lies to the left of the mesentery.[64] The connection from the main mesobronchi ... Function[edit]. The common ostrich is an endotherm and maintains a body temperature of 38.1-39.7 °C (100.6-103.5 °F) in its ... Kidney function[edit]. Common ostrich kidneys are fairly large, and so are able to hold significant amounts of solutes. Hence, ...

https://en.wikipedia.org/wiki/Common_ostrich

... atrial function MeSH G09.330.582.075.100 - atrial function, left MeSH G09.330.582.075.200 - atrial function, right MeSH G09.330 ... ventricular function MeSH G09.330.582.962.800 - ventricular function, left MeSH G09.330.582.962.900 - ventricular function, ...

https://en.wikipedia.org/wiki/List_of_MeSH_codes_(G09)

Effects of balloon mitral valvuloplasty on left atrial function in mitral stenosis as assessed by pressure-area relation. J Am ... Assessment of left atrial pressure-area relation in humans by means of retrograde left atrial catheterization and ... He subsequently made studies on the elastic properties of aorta and the function of left atrium. A large part of his research ... Aortic function in arterial hypertension determined by pressure-diameter relation: Effects of diltiazem. Circulation. 1997 Sep ...

https://en.wikipedia.org/wiki/Christodoulos_I._Stefanadis

... left and right atrial size (which predicts the likelihood that AF may become permanent), left ventricular size and function, ... Diastolic dysfunction is also associated with AF, which increases left atrial pressure, left atrial volume, size, and left ... the lack of an organized atrial contraction can result in some stagnant blood in the left atrium (LA) or left atrial appendage ... Al-Saady, N. M.; O. A. Abel; A. J. Camm (1999). "Left atrial appendage: structure, function, and role in thromboembolism". ...

https://en.wikipedia.org/wiki/Atrial_fibrillation

RAI = right atrial area / left atrial area. These measurements are made from the apical four chamber view.[citation needed] ... developed several Doppler echocardiographic numeric parameters over the last two decades to assess cardiac diastolic function. ... 2011; 124: A11559 Right atrial to left atrial area ratio on early echocardiography predicts long-term survival after acute ... from the standard transthoracic Doppler echocardiogram measurements of the right atrial area divided by the left atrial area. ...

https://en.wikipedia.org/wiki/Relative_Atrial_Index

Vengen ØA, Ellingsen Ø, Lande K, Ilebekk A. Significance of right atrial function during right sided inotropic stimulation of ... Vengen ØA, Lande K, Ellingsen Ø, Ilebekk A. Cardiac adjust¬ments to left side inotropic stimulation of in situ pig hearts. Am J ... Vengen ØA, Ellingsen Ø, Ilebekk A. Forward diastolic flow in pulmonary artery induced by right atrial contraction of in situ ... Kemi OJ, Ellingsen Ø, Smith GL, Wisløff U. Exercise-induced changes in calcium handling in left ventricular cardiomyocytes. ...

https://en.wikipedia.org/wiki/Øyvind_Ellingsen

The atrial lead is the curved one making a U shape in the upper left part of the figure. ... as well as between the septal and lateral walls of the left ventricle can be adjusted to achieve optimal cardiac function. ... can have negative effects on heart function. Indeed, it has been associated with increased risk of atrial fibrillation, heart ... Atrial septostomy. Balloon septostomy. creation of septal defect in heart Blalock-Hanlon procedure. shunt from heart chamber to ...

https://en.wikipedia.org/wiki/Pacemaker

This appears to "function as a decompression chamber during left ventricular systole and during other periods when left atrial ... The case of a disappearing left atrial appendage thrombus: direct visualization of left atrial thrombus migration, captured by ... 1999). "Left atrial appendage: structure, function, and role in thromboembolism: Review". Heart. 82 (5): 547-54. doi:10.1136/ ... The left atrial appendage can be seen on a standard posteroanterior x-ray, where the lower level of the left hilum becomes ...

https://en.wikipedia.org/wiki/Atrium_(heart)

Parallel to "diastolic function", the term "systolic function" is usually referenced in terms of the left ventricular ejection ... diastolic intervals consist of early rapid filling E-waves followed by diastasis and followed by atrial systole-generated A- ... The most established index to describe left ventricular diastolic function is Tau, left ventricular diastolic time constant. ... To better understand diastolic function, it is crucial to realize that the left ventricle is a mechanical suction pump at, and ...

https://en.wikipedia.org/wiki/Diastolic_function

Left heart. *(pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus ... During diastole, a normally-functioning mitral valve opens as a result of increased pressure from the left atrium as it fills ... Diastole ends with atrial contraction, which ejects the final 30% of blood that is transferred from the left atrium to the left ... displaystyle A(x,t)=A_{0}\left(1-[1-{\Lambda }(t)]{x \over {L}}\right)^{2}}. ∫. 0. L. p. (. x. ,. t. ). ∂. A. ∂. x. d. x. =. [ ...

https://en.wikipedia.org/wiki/Heart_valve

Elevated right atrial pressure (>12mmHg), Moderate pulmonary hypertension, Normal systolic function, Poor diastolic function, ... Cite journal requires ,journal= (help) Pollak, A; Falk, R H (1993-08-01). "Left ventricular systolic dysfunction precipitated ... Vasodilators are also typically ineffective because systolic function is usually preserved in cases of RCM. Heart failure ... Patients will demonstrate normal systolic function, diastolic dysfunction, and a restrictive filling pattern. 2-dimensional and ...

https://en.wikipedia.org/wiki/Restrictive_cardiomyopathy

... early-to-atrial left ventricular filling ratio), the E (early left ventricular filling) deceleration time, and the isovolumic ... Compromise of left ventricular forward function may result in symptoms of poor systemic circulation such as dizziness, ... Backward failure can be subdivided into the failure of the left atrium, the left ventricle or both within the left circuit. The ... Left-sided failure[edit]. The left side of the heart is responsible for receiving oxygen-rich blood from the lungs and pumping ...

https://en.wikipedia.org/wiki/Heart_failure

The atrial lead is the curved one making a U shape in the upper left part of the figure. ... Basic functionEdit. Modern pacemakers usually have multiple functions. The most basic form monitors the heart's native ... Thus, timing between the atrial and ventricular contractions, as well as between the septal and lateral walls of the left ... as in atrial fibrillation. The equivalent atrial pacing mode is AAI or AAIR which is the mode of choice when atrioventricular ...

https://en.m.wikipedia.org/wiki/Artificial_cardiac_pacemaker

Mutations in MYH10 have been identified in patients with left atrial enlargement. NM-IIB is 228.9 kDa protein composed of 1976 ... Various functions of NM-IIB require the phosphorylation of the regulatory light chain MLC20, including cell migration and cell ... Single nucleotide polymorphisms in MYH10 were detected in patients with left atrial enlargement. MYH10 was identified to be a ... Insights into the function of NM-IIB specifically have come from studies employing transgenic animals. NM-IIB is clearly ...

https://en.wikipedia.org/wiki/MYH10

Diastole ends with atrial contraction, which ejects the final 30% of blood that is transferred from the left atrium to the left ... During diastole, a normally-functioning mitral valve opens as a result of increased pressure from the left atrium as it fills ... displaystyle A(x,t)=A_{0}\left(1-[1-{\Lambda }(t)]{x \over {L}}\right)^{2}}. ∫. 0. L. p. (. x. ,. t. ). ∂. A. ∂. x. d. x. =. [ ... It is on the left side of the heart and allows the blood to flow from the left atrium into the left ventricle. ...

https://en.m.wikipedia.org/wiki/Heart_valve

Less common findings include left ventricular hypertrophy, premature atrial and ventricular contractions, atrial fibrillation, ... It can alter cardiac function, with increased heart rate, increased left ventricular mass index, increased cardiac ... Studies of thyroid function and immune parameters in patients with hyperthyroid Graves' disease in remission. Murakami M, ... January 2009). "Thyroid function abnormalities and cognitive impairment in elderly people: results of the Invecchiare in ...

https://en.wikipedia.org/wiki/Signs_and_symptoms_of_Graves'_disease

Left heart. *(pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus ... Function[edit]. The papillary muscles of both the right and left ventricles begin to contract shortly before ventricular ... L.C.C. Left common carotid artery.. L.S. Left subclavian artery.. L.V. Left ventricle.. P.A. Pulmonary artery.. R.A. Right ... Anterolateral muscle blood supply: left anterior descending artery - diagonal branch (LAD) and left circumflex artery - obtuse ...

https://en.wikipedia.org/wiki/Papillary_muscle

Often, reverse remodeling, or improvement in left ventricular function, will also be seen.[citation needed] Anatomy portal Dor ... However, atrial natriuretic peptide is thought to be cardio-protective. Remodeling of the heart is evaluated by performing an ... Ventricular mass and volume increase, which together adversely affect cardiac function. Eventually, diastolic function, or the ... may actually reverse the remodeling process by reducing left ventricular volumes and improving systolic function. Early ...

https://en.wikipedia.org/wiki/Ventricular_remodeling

Mild left atrial enlargement: the test will help to determine if the left atrium is enlarged due to alternate blood flows Right ... and functioning of left ventricle. The ECG can also be used to determine the rhythm of the heart to determine if there is an ... This is caused by blood flowing from left atrium to the right atrium causing a higher left atrial pressure and leading to ... pulmonary vascular congestion, marked left atrial enlargement: the test will help to determine if there is a sign of MS and ...

https://en.wikipedia.org/wiki/Lutembacher's_syndrome

Left atrial flutter is considered atypical and is common after incomplete left atrial ablation procedures. Atypical atrial ... Prolonged atrial flutter with fast heart rates may lead to decompensation with loss of normal heart function (heart failure). ... A blood clot in the left atrial appendage is particularly important as the left side of the heart supplies blood to the entire ... Similar to the abnormal heart rhythm atrial fibrillation, atrial flutter also leads to poor contraction of the atrial chambers ...

https://en.wikipedia.org/wiki/Atrial_flutter

... rapid atrial and ventricular pacing, and left bundle branch block. The types of SVT associated with TIC include atrial ... Studies show that left ventricular function often improves within 1 month of treatment of the tachyarrhythmia, and ... Previously normal left ventricular ejection fraction or left ventricular systolic dysfunction out of proportion to a patient's ... In addition to decreased left ventricular ejection fraction, studies indicate that patients with TIC may have a smaller left ...

https://en.wikipedia.org/wiki/Tachycardia-induced_cardiomyopathy

These patients will have left atrial enlargement, and many will have a reduced left ventricular ejection fraction that ... HFpEF is characterized by abnormal diastolic function: there is an increase in the stiffness of the left ventricle, which ... and many have left atrial enlargement due to the elevated pressures in the left heart. ... When this pressure falls below the atrial pressure, atrio-ventricular valves open (mitral valve at left side and tricuspid ...

https://en.wikipedia.org/wiki/Diastolic_heart_failure

Left atrial appendage isomerism, also called left atrial isomerism, is a cardiac development defect in which the heart has 2 ... have been indicated in sporadic and familial cases of atrial isomerism. Disrupted mitochondria function has also been recently ... whereas those with left atrial isomerism fail to develop a sinus node at all. Thus, patients with left atrial isomerism are ... Right-atrial and left-atrial isomerism and associated pulmonary issues are treated in a series of steps based on the severity ...

https://en.wikipedia.org/wiki/Situs_ambiguus

... preservation of systolic function, and/or rate control for atrial fibrillation with a rapid ventricular response. Heart Failure ... Other species of Lepidoptera eat the leaves, including the lesser yellow underwing. Digitalis is an example of a drug derived ... atrial fibrillation. Digitalis is hence often prescribed for patients in atrial fibrillation, especially if they have been ... and increasing with impaired kidney function), whereas digitoxin's is about 7 days and not affected by kidney function. Both ...

https://en.wikipedia.org/wiki/Digitalis

... as a result of the inability of the left heart to pump enough blood to sustain normal organ function. In fetal life, this is ... A balloon atrial septostomy is also done. This ensures that there is enough of a connection between the two atria of the heart ... Fetal aortic stenosis impairs left ventricular development, which can lead to hypoplastic left heart syndrome. If untreated, ... a varying degree of left ventricular hypertrophy and abnormal Doppler flow characteristics in the left heart. There may be ...

https://en.wikipedia.org/wiki/Fetal_aortic_stenosis

The Aquarius Foundation was set up in an attempt to keep Aquarius functioning.[17][18] In a two-week series the daily cartoon ... enabling scientists to perform research and process samples without leaving their underwater facilities. ... Atrial septal defect. *Effects of drugs on fitness to dive. *Fitness to dive ... The smallest compartment, the Entry Lock, is between the other two and functions as an airlock in which personnel wait while ...

https://en.wikipedia.org/wiki/Aquarius_Reef_Base

The gene was identified by positional cloning.[4] The EVC gene maps to the chromosome 4 short arm (4p16). The function of a ... This leaves Ellis-van Creveld syndrome with its initialism, EVC, as the only satisfactory designation. Chondroectodermal ... Congenital heart defects (most commonly an atrial septal defect producing a common atrium, occurring in 60% of affected ... and may have served a useful function in defining this then little known condition for the medical profession, as well as the ...

https://en.wikipedia.org/wiki/Ellis–van_Creveld_syndrome

Atrial fibrillation[edit]. Atrial fibrillation is one of the most common cardiac arrhythmias. In general, it is an irregular, ... Unstable means that either important organ functions are affected or cardiac arrest is about to occur.[4] ... Sinus tachycardia, which originates from the sino-atrial (SA) node, near the base of the superior vena cava ... Depending on the patient's health and other variables such as medications taken for rate control, atrial fibrillation may cause ...

https://en.wikipedia.org/wiki/Reflex_tachycardia

The NEEMO 13 Crew: Left to right: JAXA astronaut Satoshi Furukawa, Smith, NASA astronauts Nicholas Patrick and Richard R. ... the failure of the electronic functions of his Inspiration closed circuit rebreather (CCR) due to hydrodynamic forces from the ... Atrial septal defect. *Effects of drugs on fitness to dive. *Fitness to dive ...

https://en.wikipedia.org/wiki/Dewey_Smith

The AV node connects the atrial and ventricular chambers. It functions to carry the electrical impulse from the atria to the ... While the left abdominal air sac is large and lies to the left of the mesentery.[61] The connection from the main mesobronchi ... Function. The common ostrich is an endotherm and maintains a body temperature of 38.1-39.7 °C (100.6-103.5 °F) in its extreme ... Kidney function. Common ostrich kidneys are fairly large, and so are able to hold significant amounts of solutes. Hence, common ...

https://en.m.wikipedia.org/wiki/Common_ostrich

If left untreated, ventricular fibrillation (VF, or V-fib) can lead to death within minutes. When a heart goes into V-fib, ... Atrial fibrillation is often due to serious underlying medical conditions, and should be evaluated by a physician. It is not ... Fibrillation occurs when the heart muscle begins a quivering motion due to a disunity in contractile cell function. ... Atrial fibrillation can also be treated through a procedure, e.g. pulmonary vein isolation. This is performed by a cardiologist ...

https://new.wikipedia.org/wiki/कार्दियाक_अरिदमिया

Ring opening in the indole heterocyclic ring could generate new amine and keto functions. The new quinoline heterocycle would ... which had left Lima two years before, since in fact it had been in Seville in 1632, where he published one of his books and [ ... In people with atrial fibrillation, conduction defects, or heart block, quinine can cause heart arrhythmias, and should be ... it is said that it bears leaves in the form of a heart, and that it bears no fruit. This tree has a thick bark, very solid and ...

https://en.wikipedia.org/wiki/Quinine

Atrial septostomy. Balloon septostomy. creation of septal defect in heart Blalock-Hanlon procedure. shunt from heart chamber to ... left ventricle to aorta Rastelli procedure. right ventricle to pulmonary artery Sano shunt. compound procedures. for ...

https://ml.wikipedia.org/wiki/ഫലകം:Cardiac_procedures

The liver also has many regulatory functions of the metabolism. An important function is the production and control of bile ... This causes heart muscle cells to secrete the hormone atrial natriuretic peptide (ANP) into the blood. This acts on the kidneys ... When the arterial blood pressure rises the arterioles are stimulated to dilate making it easier for blood to leave the arteries ... Kluge, Matthew J. (2015). Fever: Its Biology, Evolution, and Function. Princeton University Press. p. 57. ISBN 9781400869831.. ...

https://en.wikipedia.org/wiki/Human_homeostasis

The staining is usually most intense in the dorso-caudal region of the left and right diaphragmatic lobes which often ... pulmonary infection or atrial fibrillation, inflammation, longer distances, longer duration of exercise, hard surfaces, ... with consequent loss of lung function. ... slow left ventricular relaxation time, right tricuspid valve ...

https://en.wikipedia.org/wiki/Exercise-induced_pulmonary_hemorrhage

Hemoglobin's function can also be lost by chemically oxidizing its iron atom to its ferric form. This form of inactive ... namely removing the allosteric shift of the oxygen dissociation curve and shifting the foot of the curve to the left. In so ... To improve lung function, doctors frequently place infants at risk of hypoxia inside incubators (also known as humidicribs) ... diseases interfering in lung function resulting in a ventilation-perfusion mismatch, such as a pulmonary embolus, or ...

https://en.wikipedia.org/wiki/Hypoxia_

FunctionEdit. Major Aorta anatomy displaying Ascending Aorta, Brachiocephalic trunk, Left Common Carotid Artery, Left ... The difference between aortic and right atrial pressure accounts for blood flow in the circulation.[16] When the left ventricle ... Left common carotid artery. Left subclavian artery. Descending aorta, thoracic part: Left bronchial arteries. esophageal ... For example, the left vertebral artery may arise from the aorta, instead of the left common carotid artery.[9]:188 ...

https://en.m.wikipedia.org/wiki/Aorta

The second chamber functions as a "water seal", which acts as a one way valve allowing gas to escape, but not reenter the chest ... Left-sided pneumothorax (right side of image) on CT scan of the chest with chest tube in place. ... to the retained blood can lead to pleural and pericardial effusions and contribute to the triggering of postoperative atrial ... Alternatively, a large adhesive plaster that functions like a tape bridge may be used.[23] ...

https://en.wikipedia.org/wiki/Chest_tube

The other rare E.C.G. changes include deformity of QRS complexes, prolongation of PR interval, atrial premature beats, and ... Magnetic resonance cholangiopancreatography (MRC) image showing a voluminous and heterogeneous collection in the left liver ... Liver function tests. *Serological tests. Management[edit]. This section needs additional citations for verification. Please ... atrial tachycardia. In adults, fatal cases have been reported with a total dose of 0.6 G. or less. The incidence of toxic heart ...

https://en.wikipedia.org/wiki/Amoebic_liver_abscesses

Atrial. *Right marginal. *Posterior interventricular. *Left coronary: *Anterior interventricular. *Left circumflex (Left ... Function[edit]. See also: Circulatory system. Blood vessels function to transport blood. In general, arteries and arterioles ... a b c Anatomy Physiology: The Unity of Form and Function, Saladin, McGraw Hill, 2012 ... Left heart → Aorta → Arteries → Arterioles → Capillaries → Venules → Veins → Vena cava → (Right heart) ...

https://en.wikipedia.org/wiki/Vascular

Left atrial contraction (left atrial systole) (during left ventricular diastole) causes added blood to flow across the mitral ... Function[edit]. See also: Heart valves. During left ventricular diastole, after the pressure drops in the left ventricle due to ... Left heart. *(pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus ... in area and sits in the left heart between the left atrium and the left ventricle. It has two leaflets (or "cusps"), an ...

https://en.wikipedia.org/wiki/Mitral

This results in conditions such as conjoined twins, and the resulting merged organism may die at birth when it must leave the ... Rubella can also lead to atrial and ventricular septal defects in the heart. If exposed to rubella in the second trimester, the ... All three disorders cause abnormal brain function or mental retardation. Hepatosplenomegaly is the enlargement of the liver and ... Around a 5% increase in the incidence of ventricular septal defects, atrial septal defects, and patent ductus arteriosus in ...

https://en.wikipedia.org/wiki/Congenital_disorder

It is much less than arterial pressure, with common values of 5 mmHg in the right atrium and 8 mmHg in the left atrium. ... Central venous pressure, which is a good approximation of right atrial pressure,[35] which is a major determinant of right ... The most important arterial baroreceptors are located in the left and right carotid sinuses and in the aortic arch.[70] ... Differences between left and right arm blood pressure measurements tend to be small. However, occasionally there is a ...

https://en.wikipedia.org/wiki/Arterial_blood_pressure

Male left, female on the right.) 1. Pineal gland 2. Pituitary gland 3. Thyroid gland 4. Thymus 5. Adrenal gland 6. Pancreas 7. ... It helps to regulate metabolism, growth and development, tissue function, and plays a part also in mood.[1] The field of ... Atrial-natriuretic peptide (ANP) Cardiac myocytes. *Brain natriuretic peptide (BNP) Cardiac myocytes ...

https://simple.wikipedia.org/wiki/Endocrine_system

Left heart. *(pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus ... Maceira A (2006). "Normalized Left Ventricular Systolic and Diastolic Function by Steady State Free Precession Cardiovascular ... Left atrial dimension. LA. Range 24 - 40 mm[16] Fractional shortening (FS) is the fraction of any diastolic dimension that is ... Left ventricular end-diastolic dimension. LVEDD or sometimes LVDD. The end-diastolic dimension of the left ventricle.. 48 mm,[ ...

https://en.wikipedia.org/wiki/Ventricle_(heart)

It is used in recurrent atrial flutter (Afl), atrial fibrillation (AF), supraventricular tachycardia (SVT), atrial tachycardia ... Whether for back or knee pain, a drawback for this procedure is that nerves recover function over time, so the pain relief ... boiling within tissue that can leave "a gaping hole", tears, or even charring. RFA, or rhizotomy, is sometimes used to treat ... Ablation is now the standard treatment for SVT and typical atrial flutter and the technique can also be used in AF, either to ...

https://en.wikipedia.org/wiki/Radiofrequency_ablation

Thus, common clinical indications for warfarin use are atrial fibrillation, the presence of artificial heart valves, deep ... and that this was functioning as a potent anticoagulant.[81] Only spoiled hay made from sweet clover (grown in northern states ... Acyclic tautomer (left) and cyclic hemiketal tautomer (right). X-ray crystallographic studies of warfarin show that it exists ... results from the National Registry of Atrial Fibrillation 2". Archives of Internal Medicine. 166 (2): 241-6. doi:10.1001/ ...

https://en.m.wikipedia.org/wiki/Warfarin

absence of left atrial (LA) hypertension *pulmonary artery wedge pressure , 18 mmHg (obtained by pulmonary artery ... Several studies have shown that pulmonary function and outcome are better in people with ARDS who lost weight or whose ... if no measured LA pressure available, there must be no other clinical evidence to suggest elevated left heart pressure. ... The drug is known to function by enhancing lung CD73 expression and increasing production of anti-inflammatory adenosine, such ...

https://en.wikipedia.org/wiki/ARDS

If it is caused by left heart disease, the treatment is to optimize left ventricular function by the use of medication or to ... Atrial septostomy is a surgical procedure that creates a communication between the right and left atria. It relieves pressure ... Instead, the left heart fails to pump blood efficiently, leading to pooling of blood in the lungs and back pressure within the ... Therefore, it becomes harder and harder for the left side of the heart to pump to supply sufficient oxygen to the rest of the ...

https://en.wikipedia.org/wiki/Pulmonary_Hypertension

Atrial lead at the right appendage - Right ventricular lead at the apex. - Left ventricular lead through the coronary sinus.[5] ... to treat heart failure by coordinating the function of the left and right ventricles via a pacemaker, a small device inserted ... The key indication for CRT is left bundle branch block (LBBB) of the heart, a cardiac abnormality leading to delayed left ... contributing to poor left ventricular coordination and reduced systolic function, thereby reduced ejection fraction (,35%). ...

https://en.m.wikipedia.org/wiki/Cardiac_resynchronization_therapy

... volumes of the left atrium and ventricle were calculated in 52 volunteers by 2-dimensional echocardiography. A light pen ... To obtain normal values for left atrial function noninvasively, ... To obtain normal values for left atrial function noninvasively ... End-systolic left atrial volume (mean +/- standard deviation) was 37 +/- 11.7 ml or 21 +/- 6.6 ml/m2. The change in left atrial ... These values are similar to those reported in studies in which left atrial function was calculated from contrast angiography.. ...

http://www.biomedsearch.com/nih/Normal-left-atrial-function-determined/6823848.html

Left ventricular filling dynamics: influence of left ventricular relaxation and left atrial pressure. Circulation1986;74:187-96 ... but also by left atrial pressure.4 Increased left atrial pressure may produce increased atrioventricular pressure gradient and ... In chronic atrial fibrillation (AF) left ventricular function may gradually diminish as a result of an intrinsic ... Factors with potential influence on atrial mechanical function include duration of AF and the properties of the left ventricle- ...

https://heart.bmj.com/content/87/4/379

... decreases the intensity of spontaneous left atrial contrast, reduces the size of the left atrium, and improves left atrial ... and improves left atrial function in patient with mitral stenosis. However, left atrial mechanical functions immediately after ... Left atrial mechanical functions were evaluated before and after PMV, including left atrial passive emptying volume, LA passive ... The other left atrial volumes were not altered after PMV. The early increase in conduit volume and the decrease in left atrial ...

http://www.biomedsearch.com/nih/Early-effects-percutaneous-mitral-valvuloplasty/16864950.html

... structure and function occur in patients with diastolic heart failure (DHF). The reasons for the transition from asymptomatic ... Background-Abnormalities in left ventricular (LV) structure and function occur in patients with diastolic heart failure (DHF). ... S), and atrial contraction (LAA) were measured. The ratio of wedge pressure to LAS strain was used as an index of LA stiffness ... with no significant difference between patients with DHF and diastolic dysfunction in LA systolic function indices, LV mass, LA ...

https://insights.ovid.com/circulation-cardiovascular-imaging/ccim/2009/01/000/left-atrial-function-diastolic-heart-failure/4/01337498

However, chronic AF associated with mitral valve disease deteriorates LA mechanical function diffusely throughout the LA wall. ... Multislice computed tomography accurately quantifies left atrial size and function after the MAZE procedure Circulation. 2006 ... Background: Although the MAZE procedure allows for the recovery of sinus rhythm and left atrial (LA) mechanical function in the ... All patients with MAZE were free of AF and other atrial arrhythmias during the follow-up period. In the CABG group, LA maximal ...

https://pubmed.ncbi.nlm.nih.gov/16820627/?dopt=Abstract

Effects of Dronedarone on Cardiac Geometry and Function in Patients With Atrial Fibrillation and Left Atrial Enlargement ( ... left atrial (LA) function was assessed at baseline and after 12 months treatment using 2-D echocardiography and interpreted ... Evaluate the effects of dronedarone versus placebo on left atrial function;. *Evaluate the effects of dronedarone versus ... placebo on left atrial dimension;. *Evaluate the effects of dronedarone versus placebo on left ventricular function (LVEF, E, E ...

https://clinicaltrials.gov/ct2/show/NCT01198873

... and Function. Petr Kuchynka,1,2 Jana Podzimkova,1 Martin Masek,3 Lukas Lambert,3 Vladimir Cerny,3 Barbara Danek,1 and Tomas ... atrial fibrillation require the need for detailed knowledge of left atrial and pulmonary venous morphology as well of atrial ... This review article discusses the role of cardiac magnetic resonance and computed tomography in assessment of left atrial size ... The Role of Magnetic Resonance Imaging and Cardiac Computed Tomography in the Assessment of Left Atrial Anatomy, Size, ...

https://www.hindawi.com/journals/bmri/2015/247865/abs/

"Right atrial MR imaging studies of cadaveric atrial casts and comparison with right and left atrial volumes and function in ... L. Christiaens, N. Varroud-Vial, P. Ardilouze et al., "Real three-dimensional assessment of left atrial and left atrial ... Additional value of analyzing left atrial size, left atrial ejection fraction and the difference in duration of pulmonary ... "Left atrial function and scar after catheter ablation of atrial fibrillation," Heart Rhythm, vol. 5, no. 5, pp. 656-662, 2008. ...

https://www.hindawi.com/journals/bmri/2015/247865/ref/

Abstract 13554: Left Atrial Function in Children by Volume and Strain Analysis: Impact of Congenital Aortic Stenosis. Divya ... Background: Left atrial (LA) function by volume and strain analysis in children has been little studied. LA dysfunction related ... Abstract 13554: Left Atrial Function in Children by Volume and Strain Analysis: Impact of Congenital Aortic Stenosis ... Abstract 13554: Left Atrial Function in Children by Volume and Strain Analysis: Impact of Congenital Aortic Stenosis ...

http://circ.ahajournals.org/content/132/Suppl_3/A13554

Extensive ablation during PVAI does not cause deterioration in LA function, and may cause long-term improvement, especially in ... and improve left atrial (LA) function, the effect of extensive LA ablation on LA function is not well known. ... and left atrial fractional area change (LFAC) were assessed by TTE. Transmitral (TMF), left atrial appendage (LAA), and ... Extensive ablation during pulmonary vein antrum isolation has no adverse impact on left atrial function: an echocardiography ...

https://pubmed.ncbi.nlm.nih.gov/16836670/?dopt=Abstract

Abstract 8124: Effect of Strong Lipophilic Statin Therapy on Left Atrial Structure and Function Assessed by Speckle Tracking ... Abstract 8124: Effect of Strong Lipophilic Statin Therapy on Left Atrial Structure and Function Assessed by Speckle Tracking ... Abstract 8124: Effect of Strong Lipophilic Statin Therapy on Left Atrial Structure and Function Assessed by Speckle Tracking ... Abstract 8124: Effect of Strong Lipophilic Statin Therapy on Left Atrial Structure and Function Assessed by Speckle Tracking ...

http://circ.ahajournals.org/content/124/Suppl_21/A8124

left atrial. LAKE. left atrial kinetic energy. LAV. left atrial volume. LAVi. left atrial volume indexed to body surface area. ... 1999) Left atrial relaxation and left ventricular systolic function determine left atrial reservoir function. Circulation 100: ... 2012) The impact of atrial fibrillation ablation left atrial function: association with baseline left atrial function. Pacing ... 2012) Left atrial minimum volume and reservoir function as correlates of left ventricular diastolic function: impact of left ...

http://www.onlinejacc.org/content/63/6/493?ijkey=b7e6066a2e839d3fb2ff460d4fd321d07d0e4871&keytype2=tf_ipsecsha

... of LAA and left atrial spontaneous echo contrast (SEC) of left atrial appendage before ECV and after ECV 24 hours, 3 days and 1 ... function in success of electrial cardioversion (ECV) in patients with nonvalvular atrial fibrillation (NVAF), and observe the ... thrombogenic milieu Patients with atrial fibrillation should be given full anticoagulation to prevent thrombogenesis in left ... course of the recovery of LAA systaltic function Methods To test blood flow wave patterns, peak emptying velocity (PEV) ...

http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZHXX903.011.htm

Left atrial myocardial function in either physiological or pathological left ventricular hypertrophy: a two-dimensional speckle ... Left atrial myocardial function in either physiological or pathological left ventricular hypertrophy: a two-dimensional speckle ...

https://bjsm.bmj.com/content/42/8/696.responses

Does Return of Left Atrial Function after Cardioversion of Patients with Atrial Fibrillation (AF) Improve Haemostatic Markers ... Fl Li-Saw-Hee, Ad Blann, Gyh Lip; Does Return of Left Atrial Function after Cardioversion of Patients with Atrial Fibrillation ...

https://portlandpress.com/clinsci/article-abstract/98/s42/4P/107142/Does-Return-of-Left-Atrial-Function-after?redirectedFrom=PDF

1998) Assessment of left atrial appendage function after cardioversion of atrial fibrillation: relation to left atrial ... 1993) Altered left atrial compliance after atrial appendectomy. Influence on left atrial and ventricular filling. Circ Res 72: ... 2014) Complex left atrial appendage morphology and left atrial appendage thrombus formation in patients with atrial ... 2000) Left atrial appendage flow velocities in subjects with normal left ventricular function. Am J Cardiol 86:769-773. ...

http://imaging.onlinejacc.org/content/7/12/1251

The Left Atrial Appendage: Anatomy, Function, and Noninvasive Evaluation. Roy Beigel, Nina C. Wunderlich, Siew Yen Ho, Reza ... LAA = left atrial appendage; MDCT = multidetector computed tomography; TEE = transesophageal echocardiography; TTE = ... 3D TEE is superior to 2D TEE in visualizing the LAA orifice in relation to surrounding structures (e.g., mitral valve, left ...

http://imaging.onlinejacc.org/content/7/12/1251/T3

Efficacy of Dofetilide in the Treatment of Atrial Fibrillation-Flutter in Patients With Reduced Left Ventricular Function. A ... Efficacy of Dofetilide in the Treatment of Atrial Fibrillation-Flutter in Patients With Reduced Left Ventricular Function. A ... There were 506 patients with atrial fibrillation/flutter (AF/Fl), congestive heart failure (CHF) or recent myocardial ... this is the largest study to date demonstrating the survival advantage of sinus rhythm among patients with AF/Fl and left ...

https://www.acc.org/latest-in-cardiology/clinical-trials/2010/02/23/19/01/diamond-low-ejection-fraction-substudy

Mount Sinai Researchers Find Gene Therapy Improved Left Ventricular and Atrial Function in Congestive Heart Failure by up to 25 ... Heart function improved by up to 25 percent in a trial using gene therapy to reverse cardiac damage from congestive heart ... Intracoronary Delivery of Gene Vector Was Safe and Improved Heart Function in a Large Animal Model *Share ... This is the first study using a novel vector for gene therapy to improve heart function in non-ischemic heart failure. ...

https://www.mountsinai.org/about/newsroom/2017/mount-sinai-researchers-find-gene-therapy-improved-left-ventricular-and-atrial-function-in-congestive-heart-failure-by-up-to-25-percent

Association of Left Atrial Function Index with Atrial Fibrillation and Cardiovascular Disease: The Framingham Offspring Study. ... Left atrial (LA) size, a marker of atrial structural remodeling, is associated with increased risk for atrial fibrillation (AF ... We tested the hypothesis that LA function index (LAFI), an echocardiographic index of LA structure and function, may better ... In our prospective investigation of a moderate-sized community-based sample, LAFI, a composite measure of LA size and function ...

https://www.physiciansweekly.com/association-of-left-atrial-function-index-with-atrial-fibrillation-and-cardiovascular-disease-the-framingham-offspring-study/

Left information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Introduction: Atrial Function, Left. Description of Atrial Function, Left. Atrial Function, Left: The hemodynamic and ... Left: *Atrial Function *Atrial *Atrial symptoms (24 causes) *Left Interesting Medical Articles:. *Symptoms of the Silent Killer ... Atrial Function, Left: Related Topics. These medical condition or symptom topics may be relevant to medical information for ...

https://www.rightdiagnosis.com/medical/atrial_function_left.htm

Influence of heart rate and atrial transport on left ventricular volume and function: relation to hemodynamic changes produced ... Influence of heart rate and atrial transport on left ventricular volume and function: relation to hemodynamic changes produced ... Influence of heart rate and atrial transport on left ventricular volume and function: relation to hemodynamic changes produced ... Left ventricular ejection fraction did not change significantly with atrial pacing (from 0.65 +/- 0.02 [mean +/- standard error ...

http://discovery.ucl.ac.uk/1502598/

Vmax, maximum left atrial volume; Vp, presystolic left atrial volume; Vmin, minimum left atrial volume; LAPEV, left atrial ... left atrial passive emptying fraction; CV, conduit volume; LAAEV, left atrial active emptying volume; LAAEF, left atrial active ... 1. Left atrial mechanical functions and left atrial conduction times might be impaired before the development of overt diabetes ... The left atrial volumes were calculated by the disk method. Left atrial mechanical functions were calculated. ...

http://kjim.org/journal/view.php?viewtype=pubreader&number=169756

... alters left atrial (LA) contractile function in a predictable manner. While increased LA size is a marker of LV diastolic ... Even after adjustment for age, gender, left atrial volume, and LVEF, LAEFContractile maintained strong independent associations ... function, myocardial ischemia, or viability. Calculation of LA volumes used in determining LA emptying functions was performed ... Decreased LA contractile function (LAEFContractile) demonstrated strong unadjusted associations with patient mortality, non- ...

https://jcmr-online.biomedcentral.com/articles/10.1186/1532-429X-13-42

LA: Left Atrium. LA Vol: Left Atrial Volume. LA C.O.: Left Atrial Cardiac Output. LVEF: Left Ventricular Ejection Fraction. ... Detection of left atrial scar and changes of cardiac function in relation to AF ablation, by 3D late gadolinium enhancement. ... Determinants of AFCA success and post-AFCA left atrial remodeling are poorly understood. Delayed Enhancement Cardiac Magnetic ... Pre and Postablation DE-CMR images of the left atrium (same patient) A. Preablation Image (0.00% LA Scar, LA Vol. of 136.1 ml ...

https://jcmr-online.biomedcentral.com/articles/10.1186/1532-429X-16-S1-P145

In analyzing data for left atrial ejection fraction and left atrial active emptying fraction , the researchers noted that there ... They point out that it is difficult to say whether the decrease in left atrial function observed in patients with AF recurrence ... Meta-analysis of the effect of radiofrequency catheter ablation on left atrial size, volumes and function in patients with ... Left atrium diameter, volume and function (ejection and emptying fraction) were evaluated prior to the ablation and at least ...

https://database.afibbers.org/database/ablation-procedures/effect-of-ablation-on-left-atrial-function

Left atrial function. Slovut DP, Taub CT. Immediate Improvement of Left Atrial Appendage Contractility after Transcatheter ... 1 attachment , Tags: Left atrial function, low-gradient severe aortic stenosis, paradoxical low-fl ow, transcatheter aortic ... Valve Replacement in a Patient with Paradoxical Low-Flow Low-Gradient Aortic Stenosis and Preserved Left Ventricular Function. ...

http://old.jcdronline.org/taxonomy/term/714/all

... Academic Article * ... and RT3DE were used to study 3D left atrial (LA) systolic and diastolic stroke volumes and index (LASVI, LAEDVI), emptying ... A decrease in diastolic E-wave, increased atrial kick (A-wave) with reduced E/A ratio, was noted as the pregnancy progressed. ... Background: Alteration of diastolic function is considered a sensitive means for detecting changes in the normal cardiac ...

https://scholars.bgu.ac.il/display/n14656578

In this study our aim was to determine the changes in left atrial functions in patients with CSX. ... OBJECTIVE: Cardiac syndrome X (CSX) affects left ventricular functions due to myocardial ischaemia. ...

https://avesis.comu.edu.tr/yayin/ac8c97e7-55d4-475d-ab42-747932d58f69/assessment-of-left-atrial-functions-in-cardiac-syndrome-x

Left atrial strain and strain rate in patients with paroxysmal and persistent atrial fibrillation: relationship to left atrial ... Right and left atrial appendage function in patients with atrial septal aneurysm without patent foramen ovale. Acta Cardiol, ... Left atrial mechanical function and stiffness in patients with atrial septal aneurysm: A speckle tracking study ... Left atrial mechanical function and stiffness in patients with paroxysmal atrial fibrillation. J Cardiovasc Ultrasound, 2012; ...

https://journals.viamedica.pl/cardiology_journal/article/view/CJ.a2015.0033/31489

Normal left atrial function determined by 2-dimensional echocardiography. (biomedsearch.com)
To obtain normal values for left atrial function noninvasively, volumes of the left atrium and ventricle were calculated in 52 volunteers by 2-dimensional echocardiography. (biomedsearch.com)
Left Atrial Volume index (LAVi) was assessed at baseline and after 12 months treatment using 2-D echocardiography and interpreted blindly via a central Echocardiography Core Lab. (clinicaltrials.gov)
left atrial (LA) function was assessed at baseline and after 12 months treatment using 2-D echocardiography and interpreted blindly via a central Echocardiography Core Lab. (clinicaltrials.gov)
Maximal left atrial diameter in the anteroposterior dimension was assessed at baseline and after 12 months treatment using 2-D echocardiography and interpreted blindly via a central Echocardiography Core Lab. (clinicaltrials.gov)
Minimum vs. maximum left atrial volume for prediction of first atrial fibrillation or flutter in an elderly cohort: a prospective study," European Journal of Echocardiography , vol. 10, no. 2, pp. 282-286, 2008. (hindawi.com)
C. P. Appleton, J. M. Galloway, M. S. Gonzalez, M. Gaballa, and M. A. Basnight, "Estimation of left ventricular filling pressures using two-dimensional and Doppler echocardiography in adult patients with cardiac disease. (hindawi.com)
Assessment of left atrial volume and function in patients with permanent atrial fibrillation: comparison of cardiac magnetic resonance imaging, 320-slice multi-detector computed tomography, and transthoracic echocardiography," European Heart Journal Cardiovascular Imaging , vol. 15, no. 5, pp. 532-540, 2014. (hindawi.com)
Atrial size and function can be assessed with echocardiography, cardiac computed tomography (CCT), and cardiac magnetic resonance (CMR). (onlinejacc.org)
Our aim was to evaluate volumetric and functional atrial parameters, using real time three-dimensional echocardiography (RT3DE) in women in early and late third trimester of pregnancy. (bgu.ac.il)
Speckle tracking echocardiography (STE) is a novel and promising tool for detecting early changes in left atrial (LA) myocardial dysfunction. (viamedica.pl)
Left atrial functional indices and measurements obtained from 2-dimensional echocardiography of healthy dogs and dogs with myxomatous mitral valve disease. (mendeley.com)
And two-dimensional speckle tracking echocardiography (2D-STE) has been reported very useful in evaluating left atrial (LA) function, as well as left ventricular (LV) function. (biomedcentral.com)
90 g/L) and group C (Hb60 ~ 90 g/L). Another 30 healthy people were also selected as control group A. Conventional echocardiography parameters, such as left atrial diameter (LAD), peak E and A of mitralis (E, A), E/A, end-diastolic thickness of ventricular septum (IVST d), end-diastolic thickness of LV posterior wall (PWTd) and left ventricular end-diastolic dimension (LVDd) were obtained from these three groups. (biomedcentral.com)
RECENT FINDINGS: This article will summarize recent developments in left atrial imaging that play a role in patients with atrial fibrillation, with particular emphasis on echocardiography, and with reference made to important advances in cardiac computed tomography and cardiac magnetic resonance. (edu.au)
We assessed LA reservoir, conduit, and pump function using two-dimensional volume indices and speckle tracking echocardiography in 135 HFpEF patients in sinus rhythm at the time of echocardiography and 40 healthy controls of similar age and gender. (elsevier.com)
Since the link between left atrial (LA) function and decreased left ventricular function is still unclear, we evaluated LA function using real-time three-dimensional echocardiography (RT3DE) in patients with CSFP, and subsequently determined the incremental value of RT3DE. (biomedcentral.com)
The LA phasic volume and function was evaluated by both two-dimensional echocardiography (2DE) and RT3DE. (biomedcentral.com)
Echocardiography is the most common non-invasive imaging technique used to quantify LA volume and function, and the biplane method of two-dimensional echocardiography (2DE) is frequently used. (biomedcentral.com)
Background: Left atrial (LA) strain (ε) and ε rate (SR) analysis by 2-dimensional speckle tracking echocardiography is a novel method for functional assessment of the LA. Objective: The purpose of this study was to determine the impact of left atrial appendage (LAA) exclusion by Lariat epicardial ligation on mechanical function of the LA by performing ε and SR analysis before and after the procedure. (elsevier.com)
Predictive role of left atrial and ventricular mechanical function in postoperative atrial fibrillation: a two-dimensional speckle-tracking echocardiography study. (acibadem.edu.tr)
Left atrial (LA) function (consisting of 3 phases: reservoir, conduit and booster pump) can be evaluated by speckle tracking echocardiography (STE) which measures myofiber deformation during these phases. (sonopath.com)
Objectives: To investigate whether there is a relation between mitral annular velocities obtained by Doppler tissue imaging (DTI) and LAA function determined by transoesophageal echocardiography (TEE) and to determine if the annular velocities can predict the presence of the inactive LAA in MS. Methods: Sixty MS patients were evaluated by transthoracic echocardiography and all patients underwent transesophageal echocardiography. (who.int)
At baseline and post-training, all participants underwent maximal exercise stress testing to assess cardiorespiratory fitness, P-wave signal-averaged electrocardiography for filtered P-wave duration and atrial late potentials (root mean square voltage of the last 20 ms), and echocardiography for LA volume, left ventricular end-diastolic volume, and mitral inflow for assessment of LA active emptying. (nebraska.edu)
Percutaneous closure of the left atrial appendage: The value of real time 3D transesophageal echocardiography and the intraoperative change in the size of the left atrial appendage. (bioportfolio.com)
The aim of this study was to investigate the value of real time three-dimensional transesophageal echocardiography (RT3DTEE) in percutaneous closure of the left atrial appendage (LAAC). (bioportfolio.com)
Recommendations for the evaluation of left ventricular diastolic function by echocardiography: an update from the American Society of Echocardiography and the European Association of cardiovascular imaging. (springer.com)
Impact of revascularization of coronary chronic total occlusion on left ventricular function and electrical stability: analysis by speckle tracking echocardiography and signal-averaged electrocardiogram. (nih.gov)
Benisty J, Roller M, Sahar G, Paz R, Vidne B, Sagie A. Iatrogenic left ventricular-right atrial fistula following mitral valve replacement and tricuspid annuloplasty: diagnosis by transthoracic and transesophageal echocardiography. (springermedizin.at)
The new findings, published online May 30 in the Journal of the American Society of Echocardiography , also suggest that patients with COVID-19 who go on to develop atrial fibrillation more commonly have elevated levels of heart-related proteins called troponin and NT-proBNP in blood test samples. (news-medical.net)

A light pen digitizing and computation system, controlled by a microprocessor, was used to outline the left atrium and ventricle in orthogonal apical views. (biomedsearch.com)
The mean fractional emptying of the left atrium was 65 +/- 8.9% and the conduit volume was 41 +/- 14.0 ml or 23 +/- 7.9 ml/m2. (biomedsearch.com)
It has been suggested that successful percutaneous balloon mitral valvuloplasty (PMV) decreases the intensity of spontaneous left atrial contrast, reduces the size of the left atrium, and improves left atrial function in patient with mitral stenosis. (biomedsearch.com)
In the last decade, there has been increasing evidence that comprehensive evaluation of the left atrium is of utmost importance. (hindawi.com)
The principal role of the left atrium is to modulate left ventricular (LV) filling and cardiovascular performance by functioning as a reservoir for pulmonary venous return during ventricular systole, a conduit for pulmonary venous return during early ventricular diastole, and a booster pump that augments ventricular filling during late ventricular diastole. (onlinejacc.org)
The left atrial appendage (LAA) is a finger-like extension originating from the main body of the left atrium. (onlinejacc.org)
The LAA derives from the primordial left atrium (LA), which is formed mainly by the adsorption of the primordial pulmonary veins and their branches (6) . (onlinejacc.org)
The researchers determined that the gene therapy was safe and significantly reversed heart failure by 25 percent in the left ventricle and by 20 percent in the left atrium. (mountsinai.org)
The hemodynamic and electrophysiological action of the LEFT ATRIUM . (rightdiagnosis.com)
The left atrium (LA) functions as a reservoir during systole, a conduit during early diastole and an active contractile chamber in late diastole [ 5 , 6 ]. (kjim.org)
LA: Left Atrium. (biomedcentral.com)
A catheter ablation for the purpose of curing atrial fibrillation (AF) involves the creation of extensive scar tissue in the left atrium. (afibbers.org)
An obvious question is, "Does the presence of this scar tissue impair the function of the left atrium? (afibbers.org)
Left atrium diameter, volume and function (ejection and emptying fraction) were evaluated prior to the ablation and at least one month following the ablation. (afibbers.org)
They conclude that a successful radio frequency catheter ablation does not adversely affect the function of the left atrium, and leads to a desirable reduction in left atrial diameter and volume. (afibbers.org)
It is indeed comforting to know that a successful ablation does not impair the function of the left atrium, but rather results in a reduction of its diameter and volume which both, if elevated, are risk factors for heart failure. (afibbers.org)
Recently, the assessment of left atrium (LA) deformation profiles obtained by deformation imaging has been proposed as an alternative method of exploring LA function and to detect early changes in LA myocardial performance. (viamedica.pl)
CONCLUSION: The present findings indicate that mitral valve replacement in patients with mitral valve stenosis, reduces the size of the left atrium, improves left atrial contractile function and depresses inflammatory and apoptotic process. (ox.ac.uk)
In humans , left atrial enlargement and reduced contractile functions are associated with adverse cardiovascular events and a poor prognosis in many dilatation of the left atrium occurs with the gradual evolution of chronic mitral valve disease and is well diseases . (bvsalud.org)
The left atrium is the most compromised cardiac chamber in dogs with chronic mitral valve disease (CMVD). (bvsalud.org)
The results showed that progressive characterized by the left atrium / aorta ratio and left atrium volume index. (bvsalud.org)
The left atrial diameter and volume indices and left atrium / aorta ratio correlated positively with the transmitral flow peak velocity E wave and E wave /IVRT ratio, which are important indices of diastolic function. (bvsalud.org)
Tissue Doppler-derived strain and strain rate were measured from the apical four and two-chamber views of the left atrium, and global values were calculated as the mean of all segments. (bmj.com)
We sought to provide a practical educational tool for the utilization of intracardiac echography (ICE) in the left atrium for the percutaneous closure of the left atrial appendage (LAA). (bioportfolio.com)
Absence of the orifice between the RIGHT ATRIUM and RIGHT VENTRICLE, with the presence of an atrial defect through which all the systemic venous return reaches the left heart. (bioportfolio.com)
Atrial fibrillation (AF) carries out a 5-fold increase in stroke risk, related to embolization of thrombi clotting in left atrium (LA). Left atrial appendage (LAA) is the site with the highest blood stasis which causes thrombus formation. (frontiersin.org)
The acquired left ventricle-to-right atrium (LV-RA) shunt (Gerbode defect) is rare but it can sometimes be a critical condition. (springermedizin.at)
Description: Pulmonary vein isolation using a circumferential ablative approach in the left atrium. (strokecenter.org)
Echocardio results:concentric lvh w/ adeq systolic function, dilated left atrium, mild tricuspid reg, pulmonic reg. (healthtap.com)
10 , 11 As several studies have demonstrated increased left ventricular mass and increased left atrium size in athletes, 12 it is possible that high BP may be a contributing factor 13 , 14 that may also link to the increased risk of atrial fibrillation in endurance athletes. (bmj.com)
In the study, carried out between March and June 2020, the researchers analyzed echocardiograms of hospitalized patients, applying a special kind of analysis called speckle-tracking strain to determine how well the left atrium of the heart moves with each heartbeat. (news-medical.net)
The team found that, overall, patients with COVID-19 had reduced function of their left atrium, the chamber of the heart that receives oxygenated blood from the lungs. (news-medical.net)
An enlarged left atrium is frequently noted in chronic kidney disease (CKD). (medsci.org)
Although MitraClip implantation induces hemodynamic unloading of the left ventricle and atrium, myocardial wall stress does not consistently improve. (deepdyve.com)

From the left ventricular time-activity curve we directly measured left ventricular ejection fraction (EF). (bmj.com)
Additional value of analyzing left atrial size, left atrial ejection fraction and the difference in duration of pulmonary venous and mitral flow velocity at atrial contraction," Journal of the American College of Cardiology , vol. 22, no. 7, pp. 1972-1982, 1993. (hindawi.com)
LV mass, LV ejection fraction and E/e' as a diastolic function were measured. (ahajournals.org)
In 10 patients count-derived left ventricular ejection fraction, end-diastolic volume and stroke volume were measured during sinus rhythm and during atrial pacing at 120, 140 and 160 beats/min. (ucl.ac.uk)
Left ventricular ejection fraction did not change significantly with atrial pacing (from 0.65 +/- 0.02 [mean +/- standard error of the mean] at a baseline sinus rate of 91 +/- 3 beats/min to 0.62 +/- 0.03 at 160 beats/min) despite a progressive decrease in end-diastolic volume. (ucl.ac.uk)
Left ventricular ejection fraction with baseline sequential A-V pacing at 100 beats/min was 0.67 +/- 0.03 and not significantly altered by either sequential A-V or simultaneous V/A pacing at 160 beats/min. (ucl.ac.uk)
The data indicate that the hemodynamic consequences of supraventricular tachyarrhythmias in patients with normal ventricular function are due primarily to decreases in ventricular volume as heart rate is increased and atrial contribution is lost rather than to any changes in left ventricular ejection fraction. (ucl.ac.uk)
While 'ejection fraction' is the phrase used for reduction of ventricular cavity volume, 'emptying function' is more appropriate for reductions of atrial volume as the atria lack inflow valves and empty passively as well as actively. (biomedcentral.com)
We correlated post AFCA scar with cardiac volumes and function including LA volume, LV ejection fraction (LVEF), and LV cardiac output (LVCO). (biomedcentral.com)
LVEF: Left Ventricular Ejection Fraction. (biomedcentral.com)
In analyzing data for left atrial ejection fraction and left atrial active emptying fraction , the researchers noted that there was no change in these parameters in patients who did not experience recurrence, while a noticeable decline (detrimental) was noted in those who did experience recurrence. (afibbers.org)
Left atrial minimum volume (LAVmin), left atrial pre-atrial contraction volume (LAVp) and left atrial maximum volume (LAVmax) were measured by Simpson's rule, whereas left atrial active ejection fraction (LAAEF) and left atrial passive ejection fraction (LAPEF) were obtained from calculation. (biomedcentral.com)
Aims Left atrial (LA) enlargement is present in the majority of heart failure with preserved ejection fraction (HFpEF) patients and is a marker of risk. (elsevier.com)
The LA total ejection fraction by RT3DE can independently predict CSFP, and RT3DE demonstrated incremental value for evaluating LA phasic function in the patients with CSFP compared to 2DE. (biomedcentral.com)
It is still unknown whether left ventricular ejection fraction (LVEF) might affect the magnitude of improvement after atrial fibrillation (AF) ablation on cardiac function in persistent or longstanding persistent AF (CAF) patients. (cumhuriyet.edu.tr)
Left atrial dysfunction relates to symptom onset in patients with heart failure and preserved left ventricular ejection fraction. (nih.gov)
Left atrial function predicts heart failure hospitalization in subjects with preserved ejection fraction and coronary heart disease: longitudinal data from the Heart and Soul Study. (springer.com)
Mild left ventricular systolic dysfunctionLeft ventricular ejection fraction 40 % with global left ventricular hypokinesis,Myxomatousmorphology mv? (healthtap.com)
Ejection fraction is est.52% 2-Mild left atrial enlargement. (healthtap.com)
Baseline values of LA passive and active emptying, LA conduit function, LA ejection fraction, and spontaneous echocontrast (SEC) in the LA and LA appendage were compared with those of 50 AF patients as well as a sex/age/cardiac risk-matched population of 70 healthy control subjects. (onlinejacc.org)
Results Pre-closure PFO subjects demonstrated significantly greater reservoir function as well as passive and active emptying, with significantly reduced conduit function and LA ejection fraction, when compared with AF and control patients. (onlinejacc.org)
We sought to determine whether structured exercise training (ET) improves maximal exercise capacity, left ventricular diastolic function, and quality of life (QoL) in patients with heart failure with preserved ejection fraction (HFpEF). (unboundmedicine.com)

1 Little is known about left ventricular diastolic function in AF. (bmj.com)
Pitavastatin had a beneficial effect on LA structure and function associated with preserved diastolic function through pleiotropic effects in elderly hypertensive patients. (ahajournals.org)
Background: Alteration of diastolic function is considered a sensitive means for detecting changes in the normal cardiac adaptation to pregnancy. (bgu.ac.il)
however, the effect on diastolic function and left atrial (LA) remodeling is unclear. (elsevier.com)
We assessed the effects of catheter ablation of PVCs on parameters of LV diastolic function and LA remodeling. (elsevier.com)
Conclusion: Catheter ablation of PVCs improved LV diastolic function and resulted in left atrial reverse remodeling. (elsevier.com)
Specifically, LA reservoir function depends on LA compliance and LV systolic function, while LA conduit function is based on LV diastolic function and LA contractile function relies on LA contractility and LV end-diastolic pressure. (biomedcentral.com)
However, the means by which changes in LA function are associated with decreased LV systolic and diastolic function in patients with CSFP is not well understood. (biomedcentral.com)
Mitral inflow and tissue Doppler imaging were employed to estimate left ventricular diastolic function. (bmj.com)
Changes in phasic atrial volume and function occurred in conjunction with age-related changes in left ventricular diastolic function. (bmj.com)
Hoit BD, Shao Y, Gabel M. Left atrial systolic and diastolic function accompanying chronic rapid pacing-induced atrial failure. (springer.com)
Secondary endpoints included effects on cardiac structure, diastolic function, and QoL. (unboundmedicine.com)
This benefit is associated with atrial reverse remodeling and improved left ventricular diastolic function. (unboundmedicine.com)

abstract = "PURPOSE OF REVIEW: This review of emerging approaches to left atrial imaging in atrial fibrillation is relevant because there has been considerable recent development in the noninvasive characterization of left atrial structure and function. (edu.au)
abstract = "Experiments were undertaken to determine the influence of increasing left atrial pressure on renal function in the nonhuman primate. (nebraska.edu)

Prevention of the processes of left atrial (LA) remodeling associated with atrial fibrillation and heart failure especially in elderly hypertensive patients (HT) may have a major public health impact. (ahajournals.org)
Thromboembolism is one of the most important complications of MS, especially when it is associated with atrial fibrillation (AF).Patients with sinus rhythm (SR) are also sussceptible to this complication when it is associated with left atrial appendage (LAA) dysfunction .LAA dysfunction is an independent predictor of thromboembolism in mitral stenosis. (who.int)
BACKGROUND: Exercise mitigates many cardiovascular risk factors associated with atrial fibrillation. (nebraska.edu)
What are the morbidity and mortality risks associated with atrial fibrillation (Afib) (AF)? (medscape.com)

S ), and atrial contraction (LA A ) were measured. (ovid.com)
SR at systole and atrial contraction in HT with statin was significantly increased associated with dilation of LA. LA volume and function in HT with statin were comparable to control (Table). (ahajournals.org)
This was mainly achieved by increasing atrial contraction (A-wave), maintaining cardiac output by increasing heart rate. (bgu.ac.il)
Maximum, minimum and pre-atrial contraction (pre-A) LA volumes (ml/m2) were 21.2 ± 5.5, 7.8 ± 2.5, and 11.0 ± 3.1, respectively. (bvsalud.org)
LA SR curves were similarly obtained to determine the peak positive strain rate (SRs) during left ventricle systole, the first negative peak strain rate (SRe) during early diastole and the second negative peak strain rate (SRa) during atrial contraction. (sonopath.com)
Patients who develop pacemaker syndrome may require adjustment of the pacemaker, or fitting of another lead to better coordinate the timing of atrial and ventricular contraction. (wikipedia.org)
Inappropriate pacing in patients with decreased ventricular compliance, which may be caused by diseases such as hypertensive cardiomyopathy, hypertrophic cardiomyopathy, restrictive cardiomyopathy, and aging, can result in loss of atrial contraction and significantly reduces cardiac output. (wikipedia.org)
These studies were supported by further studies in transgenic rats overexpressing ALC-1 which showed enhanced rates of contraction and relaxation, as well as left ventricular developed pressure in Langendorff heart preparations. (wikipedia.org)

LA diameter (LAD), LA systolic and diastolic areas, and left atrial fractional area change (LFAC) were assessed by TTE. (nih.gov)
Methods: We studied pregnant women in early third trimester (III-E = gestational age 26-33 weeks), in late third trimester (III-L = gestational age 34-40 weeks), and control nonpregnant women (C). Two-dimensional (2D-Echo) and RT3DE were used to study 3D left atrial (LA) systolic and diastolic stroke volumes and index (LASVI, LAEDVI), emptying fraction, left ventricular and LA cavities. (bgu.ac.il)

Seventeen patients who had successfully undergone direct current electrical cardioversion for persistent lone AF or atrial flutter were studied. (bmj.com)
Efficacy of Dofetilide in the Treatment of Atrial Fibrillation-Flutter in Patients With Reduced Left Ventricular Function. (acc.org)
Patients with CHF commonly have atrial fibrillation or flutter (AF), which is frequently associated with, may be a marker for, and may be the mechanism of, ischemic strokes. (scirp.org)
[4] It may also start as other forms of arrhythmia such as atrial flutter that then transform into AF. (wikipedia.org)
[4] A-fib and atrial flutter resulted in 193,300 deaths in 2015, up from 29,000 in 1990. (wikipedia.org)
The COVID-19 pandemic has affected more than 170 million people around the world, and previous studies of complications and long-term effects of SARS-CoV-2 infection have found that patients who are hospitalized with COVID-19 have more than double the rate of arrhythmias, including atrial fibrillation and atrial flutter, a similar rapid rhythm that can lead to heart failure and stroke. (news-medical.net)

We assessed the hypothesis that strong lipophilic statin (pitavastatin) has a beneficial effect on LA structure and function in elderly hypertensive patients by preventing left ventricular (LV) hypertrophy through pleiotropic effect. (ahajournals.org)

In addition, the development of new interventional transcatheter procedures for AF, mitral valve repair, atrial septal defect closure, and LAA occlusion may result in intentional or unintentional instrumentation of the LAA. (onlinejacc.org)
Atrial septal aneurysm (ASA) is a risk factor for arterial embolism, as it frequently co-exists with an atrial septal defect (ASD) or patent foramen ovale (PFO). (viamedica.pl)
CMR-based TA systolic velocity (S′), early diastolic velocity (E′), late diastolic velocity (A′), and TA plane systolic excursion (TAPSE) have been reported to be significantly lower in patients diagnosed with heart failure ( 4 ), hypertrophic cardiomyopathy ( 4 ), repaired tetralogy of Fallot (rTOF) ( 4 , 5 ), unrepaired atrial septal defect ( 5 ), and severe tricuspid insufficiency ( 6 ) than in normal controls. (frontiersin.org)

Then, to calculate end-systolic and end-diastolic atrial and ventricular volumes, a modified Simpson's rule formula was used. (biomedsearch.com)
The other left atrial volumes were not altered after PMV. (biomedsearch.com)
All 3 patient groups had increased LA volumes and depressed LA EF, a′, and LA A strain, with no significant difference between patients with DHF and diastolic dysfunction in LA systolic function indices, LV mass, LA volumes, LV, and arterial elastance. (ovid.com)
Children with significant AS have abnormal LA function with higher phasic LA volumes, higher LA pump function, and lower strain-derived reservoir and conduit LA function. (ahajournals.org)
During simultaneous V/A pacing at 160 beats/min, the reduction in end-diastolic and stroke volumes from the baseline value was -26.6 +/- 3.8 percent and -28.8 +/- 4.3 percent, respectively (both p less than 0.01), but was significantly smaller (-16.1 +/- 3.6 percent and -19.2 +/- 4.1 percent, respectively [p less than 0.05]) when atrial transport was maintained during sequential A-V pacing at the same heart rate. (ucl.ac.uk)
During simultaneous V/A pacing at 160 beats/min, two thirds of the reduction in end-diastolic and stroke volumes from the baseline value was due to the increment in heart rate as assessed from sequential A-V pacing and the other third was due to loss of atrial transport. (ucl.ac.uk)
The left atrial volumes were calculated by the disk method. (kjim.org)
Calculation of LA volumes used in determining LA emptying functions was performed using the biplane area-length method. (biomedcentral.com)
Meta-analysis of the effect of radiofrequency catheter ablation on left atrial size, volumes and function in patients with atrial fibrillation. (afibbers.org)
Echocardiographically, LA volumes were measured at mitral valve opening (Vmax), at the onset of left atrial systole (P wave of the electrocardiogram, Vp) and at the mitral valve closure (Vmin). (ox.ac.uk)
We also compared the changes in the left atrial volumes and left atrial volume index (LAVI) after PVC ablation. (elsevier.com)
CONCLUSION: The risk of AF, including asymptomatic AF, increases significantly with increasing LA volumes and worsening LA function. (regionh.dk)
PPaV 1 and PTFV 1 were associated with an increase in LA volumes and decrease in LA emptying fraction and LA reservoir function. (elsevier.com)
LA and left ventricular volumes remained below Masters athletes. (nebraska.edu)
45%). LA volumes, reservoir, channel and pump function were measured. (regsj.dk)
Phasic left atrial volumes and fractions were calculated. (bmj.com)
LA volumes and reservoir function are associated with subclinical cerebrovascular disease: the CABL (Cardiovascular Abnormalities and Brain Lesions) study. (springer.com)
Recent findings suggest that left atrial (LA) function is more strongly related to adverse prognosis than LA volumes. (kb.se)
We aimed to evaluate the associations between LA volumes and Doppler filling indices with LA function. (kb.se)
Echocardiographic LA volumes (LAVs), mitral valve early (MV-E) and late (MV-A) peak flow velocities, and mitral atrioventricular plane tissue-Doppler early (TD-e ') and late (TD-a ') peak velocities were obtained in 320 patients with acute myocardial infarction (AMI) free from atrial fibrillation and more than moderate valvular disease. (kb.se)

Furthermore, this is the largest study to date demonstrating the survival advantage of sinus rhythm among patients with AF/Fl and left ventricular dysfunction. (acc.org)
Progressive left ventricular (LV) diastolic dysfunction due to hypertension (HTN) alters left atrial (LA) contractile function in a predictable manner. (biomedcentral.com)
While increased LA size is a marker of LV diastolic dysfunction and has been shown to be predictive of adverse cardiovascular outcomes, the prognostic significance of altered LA contractile function is unknown. (biomedcentral.com)
In hypertensive patients at risk for left ventricular diastolic dysfunction, a decreased contribution of LA contractile function to ventricular filling during diastole is strongly predictive of adverse cardiac events and death. (biomedcentral.com)
Left Ventricular (LV) diastolic dysfunction as a consequence of chronic hypertension is a prevalent condition associated with significant morbidity and mortality. (biomedcentral.com)
While evidence exists that LA enlargement is a strong predictor of adverse cardiovascular outcomes in selected populations, there is little data regarding the prognostic implication of altered left atrial contractile function in patients with chronic hypertension at risk of diastolic dysfunction. (biomedcentral.com)
Atrial dysfunction and atrial arrhythmia, such as atrial fibrillation, might represent a mechanism for arterial embolism in such patients. (viamedica.pl)
Atrial dysfunction and atrial arrhythmia, such as atrial fibrillation (AF), might represent an alternate and additional mechanism for arterial embolism in these patients [1-3]. (viamedica.pl)
Left atrial (LA) enlargement and dysfunction are related to clinical course in patients with hypertrophic cardiomyopathy (HCM). (cdc.gov)
Strain analysis may therefore be more sensitive in detecting subclinical atrial dysfunction with alterations in strain rate parameters observed before traditional parameters. (bmj.com)
These findings support the relationship of LA dysfunction with HFPEF, suggesting that the analysis of LA function may be useful in sinus rhythm patients with new-onset dyspnoea. (nih.gov)
Dilated cardiomyopathy (DCM) is characterized by left or bilateral ventricular dilation and systolic dysfunction without rational conditions, which can lead to progressive heart failure and sudden cardiac death. (springermedizin.de)
Left Atrial Dysfunction in Patients With Patent Foramen Ovale and Atrial Septal Aneurysm: An Alternative Concurrent Mechanism for Arterial Embolism? (onlinejacc.org)
To test the contribution of significant left atrial (LA) dysfunction as alternative mechanism for arterial embolization in patients with patent foramen ovale (PFO), the baseline values of LA functional parameters of 98 consecutive patients with previous stroke (mean age 37 ± 12.5 years, 58 women) were compared with those of 50 atrial fibrillation patients as well as a sex/age/cardiac risk-matched population of 70 healthy control subjects. (onlinejacc.org)
Objectives We postulate that, in patients with large patent foramen ovales (PFO) and atrial septal aneurysms (ASA), left atrial (LA) dysfunction simulating "atrial fibrillation (AF)-like" pathophysiology might represent an alternate mechanism in the promotion of arterial embolism. (onlinejacc.org)
Patients with noncompliant ventricles and diastolic dysfunction are particularly sensitive to loss of atrial contribution to ventricular filling and have a greater chance of developing the syndrome. (wikipedia.org)

The change in left atrial volume from end-systole to end-diastole was 24 +/- 7.6 ml or 13.5 +/- 4.3 ml/m2, which represented 37 +/- 12.9% of left ventricular stroke volume. (biomedsearch.com)
Left atrial mechanical functions were evaluated before and after PMV, including left atrial passive emptying volume, LA passive emptying fraction, conduit volume, left ventricular stroke volume, LA active emptying volume, LA active emptying fraction, LA total emptying volume and LA total emptying fraction. (biomedsearch.com)
Left atrial volume in the prediction of first ischemic stroke in an elderly cohort without atrial fibrillation," Mayo Clinic Proceedings , vol. 79, no. 8, pp. 1008-1014, 2004. (hindawi.com)
Significantly higher phasic indexed LAVs and indexed active LA stroke volume (pump function) and lower strain values for LA reservoir and conduit function were noted in AS cases (Fig 2). (ahajournals.org)
In 1909, Welch (4) noted that cardiovascular stroke associated with AF was due to left atrial appendage (LAA) thrombi and that this was the most common site for thrombus formation in the setting of AF (5) . (onlinejacc.org)
At 100 beats/min, loss of atrial transport with simultaneous V/A pacing resulted in a small reduction in end-diastolic volume from a baseline value of -9.0 +/- 1.9 percent (p less than 0.01) and a nonsignificant reduction in stroke volume of -3.7 +/- 1.6 percent. (ucl.ac.uk)
Atrial fibrillation (AF) and stroke are important major health problems that share common risk factors and frequently coexist. (onlinejacc.org)
Left atrial (LA) remodeling is an important underlying substrate for AF and stroke. (onlinejacc.org)
Atrial fibrillation (AF) and stroke are highly prevalent conditions that share common risk factors and frequently coexist (1) . (onlinejacc.org)
Currently, risk stratification of AF patients for the occurrence of stroke is based on clinical scores that do not include LA remodeling and function in their algorithms. (onlinejacc.org)
AIMS: We aimed to investigate whether left atrial (LA) markers from cardiovascular magnetic resonance (CMR) were able to predict atrial fibrillation (AF) in elderly patients with risk factors for stroke. (regionh.dk)
BACKGROUND: Abnormal P-terminal force in lead V 1 (PTFV 1 ) is associated with an increased risk of heart failure, stroke, atrial fibrillation, and death. (elsevier.com)
BACKGROUND: Impaired left atrial (LA) mechanical function is present in hypertension and likely contributes to various complications, including atrial arrhythmias, stroke, and heart failure. (umassmed.edu)
This association could underlie the increased risk of atrial fibrillation and stroke seen with the use of beta-blockers (as opposed to other antihypertensive agents) demonstrated in recent trials. (umassmed.edu)
Percutaneous left atrial appendage (LAA) closure (placement of an occluder to close the appendage) is a novel procedure for stroke prevention in patients suffering from atrial fibrillation. (bioportfolio.com)
Because of its hooked morphology, the LAA is the left atrial site of the highest blood stasis risk, increasing the incidence of thrombus formation and stroke. (frontiersin.org)
Stroke Risk in Atrial Fibrillation Working Group (2008) Comparison of 12 Risk Stratification Schemes to Predict Stroke in Patients with Nonvalvular Atrial Fibrillation. (scirp.org)
Despite the efficacy of antithrombotic treatment in preventing stroke in patients with atrial fibrillation, 1 community surveys report a low uptake of such treatment. (bmj.com)
The CABANA Trial is designed to test the hypothesis that the treatment strategy of left atrial catheter ablation for the purpose of eliminating atrial fibrillation (AF) will be superior to current state-of-the-art therapy with either rate control or rhythm control drugs for decreasing the incidence of the composite endpoint of total mortality, disabling stroke, serious bleeding, or cardiac arrest in patients with untreated or incompletely treated AF. (strokecenter.org)
Other factors correlated with development of pacemaker syndrome include decreased stroke volume, decreased cardiac output, and decreased left atrial total emptying fraction associated with ventricular pacing. (wikipedia.org)

B. Hoit, "Assessment of echocardiographic left atrial size: how accurate do we need to be? (hindawi.com)
We tested the hypothesis that LA function index (LAFI), an echocardiographic index of LA structure and function, may better characterize adverse LA remodeling and predict incident AF and CVD than existing measures. (physiciansweekly.com)
Left atrial function during pregnancy: a three-dimensional echocardiographic study. (bgu.ac.il)
However, whether echocardiographic parameters of LA function, such as LAEF, LAi and MinLAVI, are superior to LAVI for predicting prognosis following STEMI is unknown. (regionh.dk)
We acquired 2D echocardiographic cineloops from the left apical 4-chamber view optimized for the LA, and analyzed atrial longitudinal strain (St) and strain rate (SR) in 27 dogs (10 healthy dogs and 17 dogs with MMVD - 5 ACVIM Stage B1, 5 Stage B2 and 7 Stage C). (sonopath.com)
Echocardiographic left atrial diameter (LAD) has been documented to be an independent predictor of adverse cardiovascular outcomes in various populations. (medsci.org)

BACKGROUND: Paroxysmal atrial fibrillation (AF) (PaAF) could be a singleself-terminating episode of AF or recurrent ones ultimately resulting in a morepersistent form after sinus conversion. (yonsei.ac.kr)
The aim of this study was to evaluate the effects of atorvastatin on left atrial (LA) function in paroxysmal atrial fibrillation patients. (geneticsmr.com)
Fifty-eight paroxysmal atrial fibrillation patients were divided into two groups (treatment and control groups). (geneticsmr.com)

The early increase in conduit volume and the decrease in left atrial presystolic volume indicate that PMV has favorable effects on atrial reservoir and conduit functions. (biomedsearch.com)
Data are sufficient to recommend evaluation of left atrial volume in certain populations, and although analysis of atrial reservoir, conduit, and booster pump function trails in that regard, the gap is rapidly closing. (onlinejacc.org)
Conduit function is influenced by atrial compliance and is reciprocally related to reservoir function but by necessity is closely related to LV relaxation and compliance. (onlinejacc.org)
conduit function i.e. (jcdronline.org)
Successful BMV leads to early improvement in left atrial reservoir and conduit functions, without significantly affecting left atrial pump function. (jcdronline.org)
SR during ventricular systole (LA-SRs) represents LA reservoir function, and SR during early ventricular diastole (LA-SRe) represents LA conduit function. (elsevier.com)
P=0.039), indicating impaired LA conduit function. (umassmed.edu)

Furthermore, advances in catheter ablation procedures used for the treatment of drug-refractory atrial fibrillation require the need for detailed knowledge of left atrial and pulmonary venous morphology as well of atrial wall characteristics. (hindawi.com)
Special interest is paid to the utility of these rapidly involving noninvasive imaging methods before and after atrial fibrillation ablation. (hindawi.com)
Although pulmonary vein antrum isolation (PVAI) may cure atrial fibrillation (AF) and improve left atrial (LA) function, the effect of extensive LA ablation on LA function is not well known. (nih.gov)
Extensive ablation during PVAI does not cause deterioration in LA function, and may cause long-term improvement, especially in patients with higher AF burden. (nih.gov)
They point out that it is difficult to say whether the decrease in left atrial function observed in patients with AF recurrence is related to the continued presence of AF, or to the presence of excessive scar tissue produced by the ablation procedure. (afibbers.org)
The evidence that these modalities can predict who will develop atrial fibrillation, who will achieve sustained sinus rhythm after cardioversion or catheter ablation, and who will have thromboembolic risk will be reviewed. (edu.au)
By contrast, novel therapeutic options such as radiofrequency catheter ablation techniques and transcatheter closure of the left atrial appendage (LAA) demand advanced imaging to maximize patient safety and procedural outcomes. (onlinejacc.org)
Catheter ablation for atrial fibrillatio. (cumhuriyet.edu.tr)
Efficacy and Safety of Figure-of-Eight Suture for Hemostasis After Radiofrequency Catheter Ablation for Atrial Fibrillation. (nih.gov)
Automated Ablation Annotation Algorithm Reduces Re-conduction of Isolated Pulmonary Vein and Improves Outcome After Catheter Ablation for Atrial Fibrillation. (nih.gov)
The (Catheter Ablation Versus Anti-arrhythmic Drug Therapy for Atrial Fibrillation Trial) CABANA Trial has the overall goal of establishing the appropriate roles for medical and ablative intervention for atrial fibrillation (AF). (strokecenter.org)
Percutaneous left atrial catheter ablation for the purpose of eliminating AF is superior to current state-of-the-art therapy with either rate or rhythm control drugs for reducing total mortality in patients with untreated or incompletely treated AF. (strokecenter.org)

Totally Thorascopic Closure of the Left Atrial Appendage. (bioportfolio.com)

2006) ACC/AHA/ESC 2006 Guidelines for the Management of Patients with Atrial Fibrillation: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and European Society of Cardiology Committee for Practice Guidelines (Writing Committee to Revise the 2001 Guidelines for the Management of Patients with Atrial Fibrillation): Developed in Collaboration with the European Heart Rhythm Association and the Heart Rhythm Society. (scirp.org)
2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the Heart Rhythm Society. (medscape.com)

Left atrial (LA) function by volume and strain analysis in children has been little studied. (ahajournals.org)
The aim of the study was to evaluate LA mechanical function and stiffness in ASA patients by 2-dimensional STE strain parameters. (viamedica.pl)
LA stiffness and strain can be used for the assessment of LA function in patients with ASA. (viamedica.pl)
The global peak atrial longitudinal strain and strain rate of systolic LV (GLSs, GLSRs) as well as early and late diastolic LV strain rate (GLSRe, GLSRa) curves of LA were acquired in each LA segment from basal segment to top segment of LA by 2D-STE. (biomedcentral.com)
Systolic LA strain was related to clinical characteristics and measures of cardiac structure and function. (elsevier.com)
Among HFpEF patients, lower systolic LA strain was associated with higher prevalence of prior HF hospitalization and history of AF, as well as worse LV systolic function, and higher LV mass and LA volume. (elsevier.com)
Conclusions In this HFpEF cohort, we observed impairment in all phases of LA function, and systolic LA strain was decreased independent of LA size or history of AF. (elsevier.com)
We sought whether LA booster pump function was associated with arrhythmias in patients undergoing primary prevention implantable cardioverter-defibrillator (ICD) implantation for non-ischaemic dilated cardiomyopathy (NICM), independent of global longitudinal strain (GLS) and mechanical dispersion (MD). (edu.au)
Objective Strain and strain rate measure local deformation of the myocardium and have been used to evaluate phasic atrial function in various disease states. (bmj.com)
The aim of this study was to define normal values for tissue Doppler-derived atrial strain measurements and examine age-related changes by decade in healthy individuals. (bmj.com)
Importantly, age-related changes in global atrial systolic strain rate and early diastolic strain rate occurred a decade before corresponding changes in atrial phasic volume parameters. (bmj.com)
Conclusion Atrial strain and strain rate can be used to quantify atrial phasic function and appear to be altered before traditional parameters with ageing. (bmj.com)
LA function was analysed using strain derived from speckle tracking in sinus rhythm patients (n = 83). (nih.gov)
Left ventricular strain rate showed no differences between non-HF and HFPEF groups, but both groups showed differences with the HFREF group. (nih.gov)

This review article discusses the role of cardiac magnetic resonance and computed tomography in assessment of left atrial size, its normal and abnormal morphology, and function. (hindawi.com)
Clinical utility and prognostic value of left atrial volume assessment by cardiovascular magnetic resonance in non-ischaemic dilated cardiomyopathy," European Journal of Heart Failure , vol. 15, no. 6, pp. 660-670, 2013. (hindawi.com)
A consecutive group of patients with chronic hypertension but without significant valvular disease or prior MI underwent clinically-indicated CMR for assessment of left ventricular (LV) function, myocardial ischemia, or viability. (biomedcentral.com)
Patients were referred either for a) evaluation for myocardial ischemia with stress CMR or b) assessment of regional and global left ventricular function and myocardial mass. (biomedcentral.com)
Assessment of left atrial functions in c. (comu.edu.tr)
Assessment of LA function may add important information in the prognostic assessment of patients with CKD even in the absence of overt cardiac disease. (elsevier.com)
Therefore, the evaluation of LA function in patients with CSFP may provide valuable information for the determination of prognosis, severity, or even may assist with the assessment of therapeutic efficacy. (biomedcentral.com)
Conclusion: Reproducible assessment of LA size and mechanical function throughout the cardiac cycle using MSCT is feasible and potentially useful clinically. (regsj.dk)
Cardiovascular magnetic resonance (CMR) is the reference standard for non-invasive assessment of right-sided heart function. (frontiersin.org)
Risk assessment for incident heart failure in individuals with atrial fibrillation. (framinghamheartstudy.org)

All patients with MAZE were free of AF and other atrial arrhythmias during the follow-up period. (nih.gov)
LA booster pump function was an independent and incremental predictor of arrhythmias in NICM over GLS and MD, and may aid better risk stratification in this population. (edu.au)

Although the clinical impact of left atrial appendage (LAA) leaks still requires confirmation, the open pouch with residual flow resulting from incomplete LAA closure may promote blood sta. (bioportfolio.com)

Does High-Intensity Endurance Training Increase the Risk of Atrial Fibrillation? (nebraska.edu)
Dive into the research topics of 'Does High-Intensity Endurance Training Increase the Risk of Atrial Fibrillation? (nebraska.edu)

Transmitral (TMF), left atrial appendage (LAA), and pulmonary venous (PVF) Doppler flows were measured by TEE. (nih.gov)
These LA functions mechanically facilitate the transition between flow through the pulmonary venous circulation and the intermittent filling of the left ventricle [ 6 , 7 ]. (kjim.org)
In conclusion, a reduced atrial function was associated with smaller LA reservoir volume, larger LA transit volume, lower TD-a ', a non-linear decrease in MV-A and a non-linear increase in E/A. Our findings are likely a reflection of the adaptation to sustain LV filling volume and counteracting a rise in pulmonary venous pressure in face of an enhanced LV end-diastolic pressure. (kb.se)

Left atrial volume predicts cardiovascular events in patients originally diagnosed with lone atrial fibrillation: three-decade follow-up," European Heart Journal , vol. 26, no. 23, pp. 2556-2561, 2005. (hindawi.com)
Prediction of cardiovascular outcomes with left atrial size: is volume superior to area or diameter? (hindawi.com)
The author examines the ability of left atrial size and function to predict cardiovascular outcomes. (onlinejacc.org)
In this state-of-the-art paper, the author reviews the methods used to assess left atrial size and function and discusses their role in predicting cardiovascular events in general and referral populations and in patients with atrial fibrillation, cardiomyopathy, ischemic heart disease, and valvular heart disease. (onlinejacc.org)
The resurgence of interest in atrial size and function has enhanced our understanding of the atrial contributions to cardiovascular performance in health and disease. (onlinejacc.org)
Among these measurements, maximal left atrial volume (LAV) indexed to body surface area (LAVi) is most strongly associated with cardiovascular disease and is the most sensitive in predicting cardiovascular outcomes and providing uniform and accurate risk stratification (3) . (onlinejacc.org)
Association of Left Atrial Function Index with Atrial Fibrillation and Cardiovascular Disease: The Framingham Offspring Study. (physiciansweekly.com)
Left atrial (LA) size, a marker of atrial structural remodeling, is associated with increased risk for atrial fibrillation (AF) and cardiovascular disease (CVD). (physiciansweekly.com)
It is well known that, as for most cardiovascular disorders, diabetes is an independent risk factor for atrial fibrillation (AF), and that the risk of AF is 1.4 to 2.1 times greater in patients with diabetes than the normal population [ 1 ]. (kjim.org)
It has been revealed that LA function is a prognostic marker for diverse cardiovascular conditions and closely correlates with disease severity [ 8 , 9 ]. (biomedcentral.com)
The right side of the heart has traditionally received less attention than the left, yet there is a growing body of evidence showing that right heart size and function are perhaps of equal importance in providing diagnostic and prognostic information in a wide range of cardiovascular diseases ( 1 ). (frontiersin.org)
Cardiovascular magnetic resonance (CMR) imaging is the current gold standard for quantitation of right ventricular (RV) geometry and function ( 2 ). (frontiersin.org)

Early effects of percutaneous mitral valvuloplasty on left atrial mechanical functions. (biomedsearch.com)
However, left atrial mechanical functions immediately after PMV have not been extensively evaluated yet. (biomedsearch.com)
The aim of this study was to evaluate the effects of PMV on left atrial mechanical functions. (biomedsearch.com)
Although the MAZE procedure allows for the recovery of sinus rhythm and left atrial (LA) mechanical function in the great majority of patients with chronic atrial fibrillation (AF), the effects of MAZE on the precise LA geometry and wall motion remain to be elucidated. (nih.gov)
We hypothesized that LA size and mechanical function in patients with chronic AF and mitral valvular disease are well restored after MAZE. (nih.gov)
However, chronic AF associated with mitral valve disease deteriorates LA mechanical function diffusely throughout the LA wall. (nih.gov)
The aim of this study was to investigate atrial conduction times and left atrial mechanical functions, the noninvasive predictors of atrial fibrillation, in prediabetic patients with impaired fasting glucose (IFG) and impaired glucose tolerance (IGT). (kjim.org)
Left atrial mechanical functions were calculated. (kjim.org)
In addition, the left atrial mechanical functions were impaired secondary to a deterioration in the diastolic functions in the prediabetic patients. (kjim.org)
This study investigated LA conduction times and LA mechanical functions that are predictors of AF and discussed possible mechanisms of AF development in patients with IFG and IGT at a prediabetic stage. (kjim.org)
However, to date, little has been known with regard to the change of LA mechanical function, including LA stiffness, in patients with ASA. (viamedica.pl)
Rheumatic mitral stenosis (MS) is associated with progressive impairment of left atrial (LA) mechanical functions. (jcdronline.org)
023). Conclusion: LAA exclusion seems to improve mechanical function of the LA and results in reverse LA remodeling. (elsevier.com)
Objective: The aim of this study was to determine the role of left-sided mechanical parameters in postoperative atrial fibrillation (POAF) in patients undergoing coronary artery bypass grafting (CABG). (acibadem.edu.tr)
We sought to evaluate the impact of exercise on left atrial (LA) mechanical and electrical function in healthy, sedentary, middle-aged adults. (nebraska.edu)
CONCLUSIONS: Changes in LA structure, LA mechanical function, and left ventricular remodeling occurred after 10 months of exercise but without significant change in atrial electrical activity. (nebraska.edu)
However, only few studies have investigated the detailed mechanical function of the LA in these patients. (regsj.dk)
We assessed the feasibility of evaluating LA volume and mechanical function with Multi Slice Computed Tomography (MSCT) in patients with ischemic heart disease. (regsj.dk)

Blood thinners are generally prescribed to atrial fibrillation patients to lower the risk of blood clots and strokes. (news-medical.net)

LA C.O.: Left Atrial Cardiac Output. (biomedcentral.com)
Left atrial (LA) function helps to preserve cardiac output and to control pulmonary capillary wedge pressure in the setting of left ventricular (LV) impairment, but little is known about the contribution of the LA function to ventricular arrhythmia. (edu.au)
AF may also worsen heart failure in individuals who are dependent on the atrial component of the cardiac output. (medscape.com)
In general, the symptoms of the syndrome are a combination of decreased cardiac output, loss of atrial contribution to ventricular filling, loss of total peripheral resistance response, and nonphysiologic pressure waves. (wikipedia.org)

The interatrial and left atrial electromechanical delay were significantly longer in prediabetic group compared to the controls. (kjim.org)
Left atrial active emptying volume (LAAEV) and fraction (LAAEF) were significantly higher in the prediabetics than the controls. (kjim.org)
Conclusions Participants with CKD in an unselected community-based cohort had significantly impaired LA reservoir function. (elsevier.com)
In sequential Cox proportional hazards models, A -wave, E / A ratio, and GLS were significantly associated with outcomes, independent of age, sex, and cardiac resynchronization therapy defibrillator or left bundle branch block. (edu.au)

Background- Abnormalities in left ventricular (LV) structure and function occur in patients with diastolic heart failure (DHF). (ovid.com)
Heart function improved by up to 25 percent in a trial using gene therapy to reverse cardiac damage from congestive heart failure in a large animal model, Mount Sinai researchers report. (mountsinai.org)
This is the first study using a novel vector for gene therapy to improve heart function in non-ischemic heart failure. (mountsinai.org)
OBJECTIVES: To assess the comparative effectiveness of left atrial (LA) functional parameters (left atrial emptying fraction (LAEF), left atrial expansion index (LAi) and minimal left atrial volume index (MinLAVI)) with that of LA volume index (LAVI) in predicting heart failure (HF) and death following ST-elevated myocardial infarction (STEMI). (regionh.dk)
BACKGROUND: Patients with mitral stenosis (MS) and heart failure (HF) are characterized by changes in the left atrial (LA) function and activation of the apoptotic process. (ox.ac.uk)
Our data suggest that STE might be useful in assessing LA function in dogs with MMVD, and might potentially differentiate dogs with severe subclinical disease from dogs with congestive heart failure. (sonopath.com)
METHODS AND RESULTS: We studied 212 subjects with hypertension and without heart failure or atrial fibrillation. (umassmed.edu)
Left atrial (LA) maximal volume contains prognostic information in patients with heart failure and acute myocardial infarction. (regsj.dk)
Furthermore, the LA and left ventricular (LV) function was evaluated in relation to signs of clinical heart failure. (regsj.dk)
Complications include atrial fibrillation, thrombo-embolic events, and heart failure. (wikipedia.org)
Importantly, overexpression of ALC-1 was shown to attenuate heart failure in pressure-overloaded animals, by enhancing left ventricular developed pressure, maximal velocity of pressure development and relaxation. (wikipedia.org)

Finally, atrial booster pump function reflects the magnitude and timing of atrial contractility but is dependent on the degree of venous return (atrial pre-load), LV end-diastolic pressures (atrial afterload), and LV systolic reserve. (onlinejacc.org)
It can be also estimated using various imaging techniques or other pressure readings such as PULMONARY CAPILLARY WEDGE PRESSURE (an estimate of left atrial pressure) and CENTRAL VENOUS PRESSURE (an estimate of right atrial pressure). (bioportfolio.com)

End-systolic left atrial volume (mean +/- standard deviation) was 37 +/- 11.7 ml or 21 +/- 6.6 ml/m2. (biomedsearch.com)
This allowed volume measurement of early diastolic filling fraction (EDF), diastasis filling fraction (DF), and additional filling fraction (AFF) relative to the left ventricular filling volume. (bmj.com)
LA volume and booster function were quantitatively evaluated by multislice computed tomography at 17.9+/-10.0 months (MAZE group) and 15.3+/-13.6 months (CABG group) postoperatively. (nih.gov)
In both groups, LA booster function was inversely correlated with LA maximal volume. (nih.gov)
Numerous studies have clearly demonstrated the prognostic value of left atrial volume for long-term outcome. (hindawi.com)
Left atrial volume: important risk marker of incident atrial fibrillation in 1655 older men and women," Mayo Clinic Proceedings , vol. 76, no. 5, pp. 467-475, 2001. (hindawi.com)
Left atrial volume: a powerful predictor of survival after acute myocardial infarction," Circulation , vol. 107, no. 17, pp. 2207-2212, 2003. (hindawi.com)
LA volume and function in HT with statin were more preserved than HT without statin despite no difference in LDL cholesterol, blood pressure and antihypertensive drug use. (ahajournals.org)
For example, although reservoir function is governed by atrial compliance during ventricular systole (and, to a lesser extent, by atrial contractility and relaxation), it is influenced by descent of the LV base during systole and by LV end-systolic volume (1) . (onlinejacc.org)
Although the reasons responsible for this renaissance are multifactorial and include the use of left atrial (LA) volume as a biomarker integrating the magnitude and duration of diastolic LV function and the development of sophisticated, noninvasive indexes of LA size and function, the increasingly recognized importance of LA size and function in determining prognosis and risk stratification is critical and is the focus of this state-of-the-art paper. (onlinejacc.org)
53% women), we related LA diameter and LAFI (derived from the LA emptying fraction, left ventricular outflow tract velocity time integral, and indexed maximal LA volume) to incidence of AF and CVD on follow-up. (physiciansweekly.com)
Influence of heart rate and atrial transport on left ventricular volume and function: relation to hemodynamic changes produced by supraventricular arrhythmia. (ucl.ac.uk)
Cardiac magnetic resonance imaging (CMR) can quantify left atrial volume and emptying functions with sufficient temporal and spatial resolution and excellent reproducibility. (biomedcentral.com)
Accordingly, this study aims to test the hypothesis that altered LA contractile emptying functions as measured by cine CMR can provide strong prognostic information in patients with chronic hypertension, beyond left atrial volume and other known risk predictors in this population. (biomedcentral.com)
LA Vol: Left Atrial Volume. (biomedcentral.com)
The researchers observed a significant decrease in left atrial diameter and volume in patients who did not experience AF recurrence following their procedure. (afibbers.org)
This study investigated the relationship between CKD and left atrial (LA) volume and function in a sample of the general population without overt cardiac disease. (elsevier.com)
Leong, D & Dokainish, H 2014, ' Left atrial volume and function in patients with atrial fibrillation ', Current Opinion in Cardiology , vol. 29, no. 5, pp. 437-444. (edu.au)
The atrial fibrosis volume by LGE trended greater in pigs with AF inducibility (6/9 post-MI and 0/6 controls). (ismrm.org)
O índice do diâmetro atrial esquerdo, o índice de volume atrial esquerdo e a relação átrio esquerdo / aorta correlacionam-se, positivamente, com a velocidade da onda E e com a relação E/TRIV, que são importantes índices de função diastólica. (bvsalud.org)
Left atrial volume and function assessed. (regionh.dk)
0.001) were independently significant predictors ofPaAF recurrence.CONCLUSION: Late diastolic mitral annular velocity (A') which indicates LAsystolic function after sinus conversion was the independent predictor of PaAFrecurrence, whereas LA volume was not. (yonsei.ac.kr)
LA function may be more importantthan LA volume in predicting recurrence particularly in patients with PaAF. (yonsei.ac.kr)

In such patients left ventricular systolic function may gradually improve after electrical cardioversion. (bmj.com)
Six hours after successful cardioversion left ventricular radionuclide angiography was performed. (bmj.com)
Does Return of Left Atrial Function after Cardioversion of Patients with Atrial Fibrillation (AF) Improve Haemostatic Markers? (portlandpress.com)
Electrophysiological characteristics of the human atria after cardioversion of persistent atrial fibrillation. (medscape.com)

IMSEAR at SEARO: Role of Mitral Annular Systolic Velocity in The Evaluation of Left Atrial Appendage Function in Mitral Stenosis. (who.int)
Majumder A A S, Tanveer M S, Reza A Q M, Chowdhury A W, Shahabuddin M. Role of Mitral Annular Systolic Velocity in The Evaluation of Left Atrial Appendage Function in Mitral Stenosis. (who.int)

Left atrial function, cytokines and soluble apoptotic markers in mitral stenosis: effects of valvular replacement. (ox.ac.uk)

and ATRIAL FIBRILLATION), direct conduction block via the Bachmann's bundle and concomitant left atrial enlargement. (bioportfolio.com)
The contribution of progressive left atrial (LA) enlargement to elevated pulmonary capillary wedge pressure (PCWP) in patients with WHO Group II pulmonary hypertension (PH) has not been well studied. (springer.com)
After excluding significant mitral regurgitation, LA enlargement was also associated with increased V-wave amplitude, indicative of decreased atrial compliance. (springer.com)

Peak S on PV flow was used as a surrogate of reservoir function. (nih.gov)
Several studies have shown that LA stiffness increases with atrial remodeling and reflects a deteriorated reservoir function [4-6]. (viamedica.pl)
Parameters of LA reservoir function i.e. (jcdronline.org)

The athletes had longer filtered P-wave duration but no difference in the frequency of atrial arrhythmia. (nebraska.edu)
Atrial Fibrillation (AF) is the most common type of arrhythmia. (frontiersin.org)
Atrial fibrillation ( AF or A-fib ) is an abnormal heart rhythm (arrhythmia) characterized by the rapid and irregular beating of the atrial chambers of the heart . (wikipedia.org)

and pump function i.e. (jcdronline.org)

In chronic atrial fibrillation (AF) left ventricular function may gradually diminish as a result of an intrinsic tachycardiomyopathy. (bmj.com)

In addition, alterations of the atrial cardiomyocytes, increase of noncollagen deposits in the interstitial space and fibrosis, favor the occurrence of re-entry that predisposes to AF. (onlinejacc.org)
Our study focused on determining the acute effects of myocardial infarction on left atrial (LA) function and myocardial injury, with the hypothesis that myocardial infarction may lead to changes in atrial mechanics, which will result in acute inflammation and later fibrosis. (ismrm.org)
OBJECTIVE: Our goal was to explore associations of left ventricular (LV) diffuse fibrosis with left atrial (LA) function and electrocardiographic (ECG) measures of LA electrical activity. (elsevier.com)
LV fibrosis did not affect LA function. (elsevier.com)
CONCLUSION: LV interstitial fibrosis is associated with abnormal PTF V1 , prolonged PPdV 1 , and P-duration, but does not affect LA function. (elsevier.com)

The electromechanical delay parameters were measured from the onset of the P wave on the surface electrocardiogram to the onset of the atrial systolic wave on tissue Doppler imaging from septum, lateral, and right ventricular annuli. (kjim.org)
Parameters of thrombosis and platelet function, as well as other bi. (bioportfolio.com)
Age- and sex-specific reference ranges were established, and associations revealed, for fast CMR feature tracking parameters of right heart function in a large normal Asian population. (frontiersin.org)

The response of the left ventricle to pacing-induced changes in heart rate and the atrioventricular (A-V) relation was examined with equilibrium gated radionuclide ventriculography in 20 patients who had normal ventricular function after surgery for recurrent supraventricular tachycardia. (ucl.ac.uk)
As a result, there is left ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR) because the right ventricle is absent or not functional. (bioportfolio.com)
The aortic valve is the valve that connects the heart (left ventricle, a pumping chamber) with the aorta (the blood vessel that carries blood throughout the body. (healthtap.com)

Furthermore, we investigated whether atrial fibrillation (AF) inducibility after myocardial infarction correlates to changes in the LA function and substrate. (ismrm.org)
Atrial remodeling after myocardial infarction was studied in 6 control swine and 9 pigs post-MI. (ismrm.org)

LA contractile function was assessed by the LA active emptying fraction (ACTEF). (ox.ac.uk)
Except for the atrial fraction, the left atrial contractile function indices correlated with the left ventricular filling pressure indices. (bvsalud.org)
LA function was estimated as the LA emptying fraction (LAEF), that is 100x (LAVmax-LAVmin)/LAVmax. (kb.se)

Ibrutinib increases the risk of hypertension and atrial fibrillation: Systematic review and meta-analysis. (bioportfolio.com)
We aimed to review blood pressure (BP) and prevalence of hypertension in different elite athletes, and study whether there was an association between high BP and left ventricular hypertrophy (LVH). (bmj.com)
9 Increased left ventricular mass is considered as subclinical organ damage in people with hypertension. (bmj.com)

SUMMARY: Although existing evidence is promising, the clinical role of cardiac imaging to predict atrial fibrillation occurrence, atrial fibrillation recurrence after treatment, and thromboembolism from atrial fibrillation remains to be confirmed in large-scale studies and clinical trials. (edu.au)

The objective of this study was to evaluate the use of the Valsalva maneuver in patients with MS and whether there is an association between the degree of the hemodynamic changes in transmitral gradient (TG) in response to Valsalva maneuver and functional status, systolic pulmonary artery pressure, and left atrial function in patients with MS in sinus rhythm. (comu.edu.tr)

Effects of Dronedarone on Cardiac Geometry and Function in Patients With Atrial Fibrillation and Left Atrial Enlargement - Full... (clinicaltrials.gov)

January 20, 2017 - Volume 130 - Issue 2 : Chinese Medical Journal (journals.lww.com)

Ingela Schnittger, MD | Stanford Medicine Profiles (med.stanford.edu)

Der Pionier der österreichischen Kardiologie Univ.-Prof. Dr. Fritz Kaindl ist am 13. September 2015 im 94. Lebensjahr... (springermedizin.at)

What are the morbidity and mortality risks associated with atrial fibrillation (Afib) (AF)? (medscape.com)

Whole-Exome Sequencing Reveals Novel Genetic Variation for Dilated Cardiomyopathy in Pediatric Chinese Patients |... (springermedizin.de)

The Muddied Waters of Ibrutinib Therapy. (bioportfolio.com)

Atrial fibrillation - Wikipedia (en.wikipedia.org)

Scientists may have cleared gene therapy hurdle (medicalxpress.com)

Blood pressure and hypertension in athletes: a systematic review | British Journal of Sports Medicine (bjsm.bmj.com)

David Lee, MD | Stanford Medicine Profiles (med.stanford.edu)

Immunoglobulin-Related Amyloidosis: Practice Essentials, Pathophysiology, Etiology (emedicine.medscape.com)

Community Academic Profiles - Faculty & Researchers - Stanford Medicine (med.stanford.edu)

Phillip C. Yang, MD | Stanford Medicine Profiles (med.stanford.edu)

National Heart Foundation of Australia and Cardiac Society of Australia and New Zealand: Australian clinical guidelines for the... (mja.com.au)

Haemoglobin decreased with Ramipril (patientsville.com)

Tal Geva, MD | Boston Children's Hospital (childrenshospital.org)

Thor Edvardsen
- Institutt for klinisk medisin — Thor Edvardsen - Institutt for klinisk medisin (med.uio.no)

A type of echocardiogram may predict COVID-19 patients most at risk of developing atrial fibrillation (news-medical.net)

Measurement of cardiac function by cardiac time intervals, applicability in normal pregnancy and twin-to-twin transfusion... (springermedizin.de)

Stanton Glantz, PhD | The Center for Health and Community (chc.ucsf.edu)

Risk Stratification and Prognosis | SpringerLink (link.springer.com)

Left Atrial Diameter and Albumin with Renal Outcomes in Chronic Kidney Disease [Abstract] (medsci.org)

Ebstein Anomaly Surgery: Background, Relevant Anatomy, Pathophysiology (emedicine.medscape.com)

Left atrial volume predicts atrial fibrillation recurrence after radiofrequency ablation: a meta-analysis (medworm.com)

Francois Haddad's Profile | Stanford Profiles (profiles.stanford.edu)

Anatomy3

Diseases9

Chemicals and Drugs2

Analytical, Diagnostic and Therapeutic Techniques and Equipment15

Phenomena and Processes9

Information Science1

Health Care3

Geographicals2

Effects of pacing-induced and balloon coronary occlusion ischemia on left atrial function in patients with coronary artery disease. (1/343)

Pulmonary venous flow in hypertrophic cardiomyopathy as assessed by the transoesophageal approach. The additive value of pulmonary venous flow and left atrial size variables in estimating the mitral inflow pattern in hypertrophic cardiomyopathy. (2/343)

Doppler sonographic evaluation of left atrial function after cardioversion of atrial fibrillation. (3/343)

Importance of left atrial appendage flow as a predictor of thromboembolic events in patients with atrial fibrillation. (4/343)

Short-term effect of atrial fibrillation on atrial contractile function in humans. (5/343)

Left atrial relaxation and left ventricular systolic function determine left atrial reservoir function. (6/343)

Noninvasive assessment of left atrial maximum dP/dt by a combination of transmitral and pulmonary venous flow. (7/343)

The pulmonary venous systolic flow pulse--its origin and relationship to left atrial pressure. (8/343)

Atrial Function, Left

Atrial Function

Atrial Function, Right

Heart Atria

Atrial Fibrillation

Echocardiography, Doppler

Echocardiography, Doppler, Pulsed

Pericardiectomy

Electric Countershock

Ventricular Function, Left

Myocardial Contraction

Echocardiography

Heart Function Tests

Echocardiography, Transesophageal

Ventricular Function

Stroke Volume

Observer Variation

Blood Flow Velocity

Hemodynamics

Ventricular Dysfunction, Left

Hypertrophy, Left Ventricular

Echocardiography, Three-Dimensional

Aortic Valve Stenosis

Catheterization

Aortic Valve Prolapse

Aortic Valve Insufficiency

Hydroxymethylglutaryl-CoA Reductase Inhibitors

Hypertension

Thiazepines

Blood Pressure Monitoring, Ambulatory

Atrial Appendage

Thromboembolism

Ultrasonography, Doppler, Color

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Heart Failure

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Effects of pacing-induced and balloon coronary occlusion ischemia on left atrial function in patients with coronary artery disease. (1/343)

Pulmonary venous flow in hypertrophic cardiomyopathy as assessed by the transoesophageal approach. The additive value of pulmonary venous flow and left atrial size variables in estimating the mitral inflow pattern in hypertrophic cardiomyopathy. (2/343)

Doppler sonographic evaluation of left atrial function after cardioversion of atrial fibrillation. (3/343)

Importance of left atrial appendage flow as a predictor of thromboembolic events in patients with atrial fibrillation. (4/343)

Short-term effect of atrial fibrillation on atrial contractile function in humans. (5/343)

Left atrial relaxation and left ventricular systolic function determine left atrial reservoir function. (6/343)

Noninvasive assessment of left atrial maximum dP/dt by a combination of transmitral and pulmonary venous flow. (7/343)

The pulmonary venous systolic flow pulse--its origin and relationship to left atrial pressure. (8/343)

Effects of Renin-Angiotensin System Inhibition on Left Atrial Function of Hypertensive Patients: An Echocardiographic Tissue...

YUHSpace: Left atrial function assessed with Doppler echocardiography rather than left atrial volume predicts recurrence in...

Associations of electrocardiographic P-wave characteristics with left atrial function, and diffuse left ventricular fibrosis...

Normal left atrial function determined by 2-dimensional echocardiography.

Abstract 13554: Left Atrial Function in Children by Volume and Strain Analysis: Impact of Congenital Aortic Stenosis |...

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Left Atrial Function Determined By 2-Dimensional Speckle Tracking Echocardiography Identifies Dogs With Congestive Heart...

Atrial Function in Patients Undergoing CRT | JACC: Cardiovascular Imaging

Russian Heart Failure Journal 2009year Ultrasonogrphy investigation in estimation of dyastolic LV pressure

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The role of left atrial chamber size as assessed by echocardiography i by Cynthia Ann Hall

Chronic systemic inflammation accompanies impaired ventricular diastolic function, detected by Doppler imaging, in patients...

Role of LA Shape in Predicting Embolic Cerebrovascular Events in Mitral Stenosis | JACC: Cardiovascular Imaging

Antegrade late diastolic arterial blood flow in the fetus: Insight into fetal atrial function<...

Reduced mechanical function of the left atrial predicts adverse outcome in pregnant women with clustering of metabolic risk...

Bradykinin facilitates noradrenaline spillover during contraction...: Ingenta Connect

IKK-2 inhibitor VIII | Role of NK1 and NK2 receptors in mouse gastric mechanical activity

Tension des muscles cardiovasculaires - IPS Therapeutique

Validation of a rapid semi-automated method to assess left atrial longitudinal phasic strains on cine cardiovascular magnetic...

Current Evaluation and Management of Patients With Mitral Stenosis | Circulation

Evaluation of the relationship between left atrial volume and myocardial ischemia: a systematic review - Mashhad University of...

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