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Depends on cause [3] (See cause) Pulmonary (or pulmonic [ 4 ] ) regurgitation (or insufficiency , incompetence ) is a condition in which the pulmonary valve is incompetent [ 5 ] and allows backflow from the pulmonary artery to the right ventricle of the heart during diastole . [ 6 ]
BELIMO Holding AG, an international group of companies, is located in Hinwil, Switzerland. [3] The company develops, produces and markets actuators for controlling heating, ventilation and air conditioning systems. Actuators and control valves make up the company's core business, and it is considered a global leader in motor control for HVAC. [4]
The anterior mitral valve moves anteriorly during systole in these patients leading to dynamic LVOTO, and the increased mass of the septum leads to a physical narrowing for blood to pass through. Thus, both of these contribute to the left ventricular outflow tract obstruction seen in some cases of this disease.
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Pulmonary valve stenosis (PVS) is a heart valve disorder. Blood going from the heart to the lungs goes through the pulmonary valve, whose purpose is to prevent blood from flowing back to the heart. In pulmonary valve stenosis this opening is too narrow, leading to a reduction of flow of blood to the lungs. [1] [5]
A rupture disc (burst) Pressure-effect acting at a rupture disc A rupture disc, also known as a pressure safety disc, burst disc, bursting disc, or burst diaphragm, is a non-reclosing pressure relief safety device that, in most uses, protects a pressure vessel, equipment or system from overpressurization or potentially damaging vacuum conditions.
An adjustable pressure-limiting valve (commonly abbreviated to APL valve, and also referred to as an expiratory valve, relief valve or spill valve) is a type of flow control valve used in anaesthesiology as part of a breathing system. It allows excess fresh gas flow and exhaled gases to leave the system while preventing ambient air from entering.
Late prosthetic valve endocarditis is usually due to community-acquired microorganisms. [17] Prosthetic valve endocarditis is commonly caused by Staphylococcus epidermidis as it is capable of growing as a biofilm on plastic surfaces. [18] Cutibacterium acnes almost exclusively causes endocarditis on prosthetic heart valves. [15]