The total heart volume variation (THVV) during systole has been proposed to be caused by radial function of the ventricles, but definitive data for both ventricles have not been presented. Furthermore, the right ventricle (RV) has been suggested to have a greater longitudinal pumping component than the left ventricle (LV). Therefore, we aimed to compare the stroke volume (SV) generated by radia...

Objective: Patients with single functional ventricles have a bad prognostic; most result in heart failure even after operation. The right heart bypass operations, except for right atrium and right ventricle connections, lack pulsatile flow and the volume returning to the common ventricle is low. To solve this problem, we tried to experimentally create a pulmonary ventricle which produces pulsat...

Samples of myocardial tissue were obtained during cardiac surgery from children operated for different types of normoxemic and hypoxemic congenital heart diseases. The phospholipid composition was analyzed by thin layer chromatography. The concentration of total phospholipids (PL), phosphatidylcholine and phosphatidylethanolamine (PE) was found lower in atrial tissue of both normoxemic and hypo...

The Chinese alligator (Alligator sinensis) belongs to the genus Alligator, which is a unique crocodile in China. In order study macroscopic structure of heart alligator, we performed detailed cardiac anatomy on five specimens. cranial mediastinum. It caudally involved by liver margins, and ventrally ribs, intercostal muscles, sternum dorsally lungs. wild typical four-chamber heart, with two (ri...

A monoclonal antibody (anterior latissimus dorsi 58 [ALD58]; antimyosin heavy chain, MHC) directed against myosin from slow tonic muscle was found to react specifically with the striated muscle cells of the conductive system in the adult chicken heart. This monoclonal antibody was used to study the expression of myosin in the conductive system of the adult and developing heart. Using immunofluo...

To determine whether myocyte mitotic division occurs in the adult mammalian heart and whether this cellular process is affected by aging, we measured the percentage of myocyte nuclei showing metaphase chromosomes in myocytes isolated from the left and right ventricles of rats at 8-12, 19-24, and 28-32 months after birth. Metaphase chromosomes were found at all ages in both ventricles. However, ...

Noradrenergic (NA) nerve fiber density was investigated in the subepicardium and myocardium of ventricles in stroke-prone spontaneously hypertensive rats (SHRSP) and was compared with that of normotensive Wistar Kyoto (WKY) rats. Fluorescent NA nerve fibers in the subepicardium of the right and left ventricles of both strains at the ages of 10, 30, 60, 90, and 180 days were examined by the glyo...

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A clinical case of successful surgical treatment in a patient with severe New York Heart Association (NYHA) functional class IIIIV heart failure, critical aortic stenosis, and extremely low left ventricular (LV) ejection fraction (EF) (16%) is presented. Aortic valve leaflet replacement was performed according to the Ozaki technique. The postoperative course uneventful discharged from hospital ...