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This innovative, pacemaker-based approach to the treatment of patients with heart failure who have a wide QRS complex (>140 ms) on 12-lead ECG aims at providing electromechanical coordination and improved ventricular synchrony in symptomatic patients who have severe systolic dysfunction and clinically significant intraventricular conduction defects, particularly left bundle-branch block. A percutaneous, three-lead, biventricular pacemaker system is used; one lead is placed in the right atrium, one is placed in the right ventricle, and a third is passed through the right atrium, through the coronary sinus, and into a cardiac vein on the lateral wall of the left ventricle.
Beneficial effects include reverse remodeling, resulting in decreased heart size and ventricular volumes, improved ejection fraction, and decreased mitral regurgitation. Clinical improvements in exercise tolerance, quality of life, and the rate of hospitalization have been documented. However resynchronization therapy has not been shown to enhance survival.
Late recurrence of artgirza: This is a reflection of progress of disease in the native coronary arteries distal to the grafts or narrowing or blockage of one or more of the g
Define the Feeding and Nutritional Management of spinal trauma? The main objectives of nutritional management are to meet the nutritional needs of the initial acute phase and
Circulation: If central pulses (femoral in infants and carotid in children) are not palpable, begin chest compression without losing any time. In young infants, encircle
Describe the Methods of Assessment The four general principles outlined above, that is, adaptation, brain and behaviour, context, and development serve as the foundation for th
Q. What is the difference between amnion and chorion? Amnion is the membrane that covers the embryo and Chorion is the membrane that covers the amnion the allantois and the yol
Given how the Na+/K+ pump works, which part of the cell (inside or outside) will have an excess of negative charge?
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Haemolysis : Mechanical valves, bioprosthetic valves as well as valves repaired with annuloplasty rings may cause haemolysis and related anaemia. This is more common when there i
Photosynthetically Active Radiation This is usually in direct proportion with the incident solar radiation, you know that tropic$ are probably the best illuminated part of the
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