Prolonged exposure to hand-arm vibration (HAV) generated by chainsaws can cause HAV syndrome, i.e., disorders in the upper extremities of forestry workers. Progress of HAV syndrome depends on the intensity of mechanical vibration transmitted throughout the body, which is directly proportional to coupling forces applied by the woodcutter to a vibrating tool. This study aimed to establish a metho...

The pericardium is a double walled sac, surrounding the heart and consists of a dense network of collagen fibers. During the contraction, the epicardial surface glides on the inner surface of the pericardium. The pericardial fluid between these two surfaces allows almost frictionless motion. In this work an electromechanical simulation framework was used to simulate the motion of the contractin...

mulibrey nanism is a rare autosomal recessive syndrome caused by a mutation in the trim37 gene with severe growth retardation and multiple organ involvement. early diagnosis is important because 50% of the patients develop congestive heart failure owing to constrictive pericarditis, and this condition plays a critical role in the final prognosis. a 37-year-old female patient presented with symp...

The pericardium is a watertight sac that envelops the heart and the great vessels. It is affected by various disease states, and its tough and inelastic nature means that acute accumulation of small amounts of fluid, or fibrosis and scarring processes affecting it may impede filling of cardiac chambers and reduce cardiac output. This is the main impact that the pericardium has in pathological s...

this syndrome is a shock-like hyper metabolic myopathy triggered in susceptible animals by stress. capture myopathy (c.m.) is a commonly occurring condition in mammals following trapping and transportation. in this case 12 to 24 hours after transportation of red deer (cevus elaphus) and wild goats (capra ibex) clinical signs such as: muscular tremor, ataxia, recumbency, hyperthermia, tachyca...

PURPOSE To use fascia lata instead of pericardium and observe the presence of adhesions. METHODS Twenty rabbits were divided into two group of ten. In group A, a 1×1 cm segment of pericardium was excised and resutured. In group B excised pericardium was substituted for autologous fascia lata. RESULTS In the comparison of microscopic adhesion rate between two groups A, B after eight weeks, t...

We have assessed viscoelastic properties of pericardium within the physiological range of stresses and related mechanical behavior to fiber direction as defined by scanning electron microscopy. Stiffness, stress relaxation, and creep were measured in samples taken from the anterior surface of 14 canine pericardia. Stress-strain relations generally were not exponential; stiffness at a stress of ...

Acute pericardial diseases include acute pericarditis and cardiac tamponade. Both conditions can be associated with acute hemodynamic instability or cardiac failure and require immediate diagnostic workup and treatment. The pericardium surrounds the heart with two layers. The outer fi brous layer is called the parietal pericardium; the inner layer, which covers the cardiac surface, is the serou...

This work assesses the effect of lyophilization on the cytotoxicity and residual aldehyde concentration of glutaraldehyde-treated and lyophilized bovine pericardium (group A), comparing it to conventional glutaraldehyde-treated bovine pericardium (group B). Cytotoxicity was measured by incubating a pericardium sample from each group in saline and assessing the eluant's influence on cellular gro...