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5: The atrial waveform | Thoracic Key
https://thoracickey.com/5-the-atrial-waveform/
The left atrial waveform can be measured directly by transeptal atrial puncture or more commonly indirectly via a balloon‐tipped pulmonary artery catheter. In most cases, the pulmonary capillary wedge pressure (PCWP) accurately reflects mean left atrial (LA) pressure; however, the pressure wave deflections are delayed and damped on a PCWP tracing compared …
Left atrial strain - a current clinical perspective
https://pubmed.ncbi.nlm.nih.gov/34599503/
The analysis becomes possible thanks to new tools that simplify the speckle-tracking assessment. Left atrial strain improves diagnostic possibilities of standard echocardiographic examination, and its diagnostic and prognostic value is sometimes comparable with more advanced and less available techniques.
Left Atrial Strain | Circulation: Cardiovascular Imaging
https://www.ahajournals.org/doi/full/10.1161/circimaging.117.007023
Left atrial (LA) function has been the subject of study for many years. 1 Interesting pathophysiological concepts have been described but to date, not many of these results have been translated into real clinical use and value. 2 Doppler and volumetric approaches were the first methods used to assess LA function.
Direct Measurement of Left Atrial Pressure during …
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5179154/
Hemodynamic evaluation of intracardiac pressures has for years been a crucial element of modern routine heart catheterization. Most often, however, these evaluations of left atrial pressure (LAP) are indirect—pulmonary capillary wedge pressure (PCWP) is obtained during right-sided heart catheterization, for example, or left ventricular end-diastolic pressure (LVEDP) …
Left Atrial Enlargement • LITFL Medical Blog • ECG Library Basics
https://litfl.com/left-atrial-enlargement-ecg-library/
Left Atrial Enlargement Left atrial enlargement (LAE) is due to pressure or volume overload of the left atrium. LAE is often a precursor to atrial fibrillation. Also known as: Left Atrial Enlargement (LAE), Left atrial hypertrophy (LAH), left atrial abnormality. P wave changes with Left Atrial Enlargement ECG Criteria for Left Atrial Enlargement
Electrocardiogram and left atrial abnormality: Design of …
https://pubmed.ncbi.nlm.nih.gov/32468671/
Background: The criteria applied for diagnosis of left atrial (LA) abnormality using electrocardiogram (ECG) have high specificity but low sensitivity. In fact, some authors have suggested classifying P-wave anomalies associated with LA abnormality and interatrial block as "atrial abnormalities."
Evaluation of left atrial function in patients with iron …
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4994319/
The endocardial interfaces of left atrial were demonstrated completely and they were traced manually by using a point-and-click method at the end of atrial contraction. Epicardial surface tracing were then generated automatically by the software and were changed manually based on the thickness of LA wall.
Left atrial enlargement | Radiology Reference Article
https://radiopaedia.org/articles/left-atrial-enlargement
Transthoracic measurements of left atrial volume represent one of the most robust indices of cardiovascular disease; left atrial remodeling and enlargement occurs as a function of the chronicity and degree of elevated filling pressures, and are a strong predictor of cardiovascular mortality.
Normal values and reference ranges for left atrial strain …
https://academic.oup.com/ehjcimaging/article/23/1/42/6386403
In recent years, left atrial (LA) deformation analysis by two-dimensional speckle-tracking echocardiography (2DSTE) has improved to allow for comprehensive analysis of LA myocardial function. Throughout the cardiac cycle, the LA plays an important role in maintaining ideal cardiac function in interdependence with the left ventricle (LV).
Left Atrial Enlargement on the Electrocardiogram - My EKG
https://en.my-ekg.com/hypertrophy-dilation/left-atrial-enlargement.html
Causes of Left Atrial Enlargement Mitral stenosis and mitral insufficiency Hypertension Aortic stenosis and aortic insufficiency Hypertrophic cardiomyopathy Atrial fibrillation, although in this case no P waves are observed Ventricular septal defects
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