A 73-year-old man with new onset atrial fibrillation with rapid ventricular response underwent transthoracic echocardiography that revealed an echogenic linear structure along the left atrium, suggestive of cor triatriatum sinister (CTS). CTS was confirmed with transesophageal echocardiography which demonstrated a proximal accessory atrium receiving pulmonary venous flow separated from a distal...

The feasibility of assessing mitral flow by means of ultrasonic monitoring of backscattered power from an echo-contrast agent in the left atrium and left ventricle was studied. A mechanical model of the left heart was built in which two thin rubber balloons connected to each other in a feedback loop via two artificial heart valves mimicked the left atrium and left ventricle. The model was drive...

羽野 壽 ・岩 田 平太郎 ・岩 田 宣芳 ・本 間 弘茂 A difference has been demonstrated between the total catecholamine contents of the atrium and the ventricle in the dog heart (1) and in the rabbit heart (2) : the level being higher in the atrium than in the ventricle. Moreover, a depletion of catecholamine in various tissues after reserpine injection was reported by many workers (3-6) and several studies (7, 8) ha...

We report a case of a 46-year-old woman who presented with subacute exertional dyspnea and severe hypoxia. A large cystic mass compressing the right side of the heart along with right-to-left atrial shunt flow through an alleged atrial septal defect (ASD) were detected on echocardiography. CT scan of the chest and MRI of the heart revealed a loculated cystic mediastinal mass with hemorrhage mea...

Atrial myxomas are uncommon in the pediatric population but are very important due to pursuant atrioventricular valve obstruction and systemic embolic events. Concerning multiple symptoms ranging from congestive heart failure to neurological deficits, the diagnosis of this disease is complicated. This paper reports a case of left atrium myxoma in a child treated with a surgical excision o...

Atrial dissociation is characterized by two sets of independent P waves on the electrocardiogram and two atrial beats independent of each other. One atrium is under the control of the dominant pacemaker (sinus node) which also controls the ventricles, while the other atrium or part of the other atrium is under the control ofan ectopic pacemaker, resulting in unilateral ectopic atrial rhythm, be...

Plasma concentrations of atrial natriuretic peptide were measured in eight patients undergoing elective cardiac catheterisation and angiography. All patients had normal resting pressures in the cardiac chambers and no clinical evidence of heart failure. Plasma atrial natriuretic peptide rose significantly from the superior vena cava into the right atrium and right ventricle. The increase into t...

The present study was undertaken to determine tonin expression and activity in rat heart presenting isoproterenol-induced hypertrophy. Renin, angiotensin-converting enzyme (ACE), and angiotensinogen (AG) expression were also determined. Wistar rats were treated with isoproterenol for 7 days (5 mg x kg(-1) x day(-1) sc). For untreated animals, the levels of tonin-specific activity in the atrium ...

Background. Comprehensive reconstruction of the left and right parts heart in giant atriomegaly, adequate tactics mitral valve replacement case concomitant tricuspid insufficiency dilation atrium lead to an improvement functional state myocardium as early at hospital stage.
 Case description. Patient B., a 67-year-old woman, was examined treated from July 12 August 2, 2016 Department Surgi...

Out of all malignant tumors, metastatic melanoma has the highest propensity of heart metastases. Metastatic heart tumor is often a sign of disseminated malignant disease and poor prognosis. In our 39-year-old female patient, the symptoms of heart failure caused by metastatic melanoma of the right atrium were the first sign of advanced metastatic disease. The tumor masses were completely resecte...