left atrium

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Related to left atrium: left ventricle, auricle of left atrium

left atrium (LA)

the uppermost chamber on the left side of the heart. It receives blood from the pulmonary veins.
References in periodicals archive ?
Potential mechanisms of stroke by PICC Arterial PICC placement with the catheter tip central to the carotid or vertebral arteries Venous PICC placement with an existing right-to-left shunt Intrapulmonary shunt --Pulmonary arteriovenous malformation (AVM) Intracardiac shunt --Atrial or ventricular septal defect (ASD, VSD) --Patent foramen ovale (PFO) Shunt between aorta and pulmonary artery --Patent ductus arteriosus (PDA) Thoracic venous anomalies --Persistent left SVC draining directly into the left atrium (this drainage pattern is present in < 10% of patients with a persistent left SVC)
A small ASD results in the pressure in the left atrium exceeding that in the right atrium.
4-fold, compared with patients aged 30-45 years; valvular disease, which raised the risk by 75%; an enlarged left atrium, which raised the risk by 33%; and male gender, which raised the risk by 17%.
When it contracts, the left atrium pumps the now bright red oxygenated blood through the mitral valve into the left ventricle, which pumps it into the aorta, from which it is distributed to other arteries to nourish your cells, tissues, and organs.
Editor's note: This is the backward leaking of blood in the heart from the left ventricle (lower chamber) to the left atrium (upper chamber).
From the lungs I go to the left atrium and then on to the left ventricle.
Briefly, the pulmonary artery and the left atrium were cannulated for monitoring the mean pulmonary artery pressure and the left atrial pressure, respectively.
The now oxygen rich blood travels into the pulmonary vein (this is the only vein in the body to carry oxygenated blood) and then goes into the left atrium.
He went on to have surgery to replace a mitral valve, which directs blood from the left atrium into the left ventricle and stops it flowing back.
He attributed a case of left vocal fold immobility to compression of the recurrent laryngeal nerve by a dilated left atrium in a patient with mitral valve stenosis.
The mitral valve is the heart valve between the left atrium and left ventricle.
Myxoma a benign globular neoplasm, is the more common coronary intracavity cardiac tumor, and is usually found within the left atrium.

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