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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.
Within a week after initiation of effective antimicrobial therapy, almost 75 per cent of patients with IE, including those with PVE, are afebrile and 90 per cent have defervesced b
Define Nutritional Needs during Exercise? During Exercise: Addressing the nutritional needs during training is essential for optimal performance. The focus should be to:
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whats polymorphic
Define ascending type of paper chromatography? The ascending type consists in dipping the lower end of the paper containing the sample spots into the solvent so that it is abov
The most recent blood work of a patient with a diagnosis of acute myelogenous leukemia (AML) reveals thrombocytopenia. Where is the patient most likely to experience abnormal bleed
Kinds of Hermaphroditism Depending upon the timing of maturity of the gonads, hermaphroditism can be of two types 1. Simultaneous hermaphroditism . Both male and female g
An impermeable membrane separates one liter of a 0.01 M glucose solution in water in the left compartment from one liter of a 0.1 M glucose solution in water in the right compartme
Nutrition, Feeding, Digestion All organisms require a fairly steady supply of nutrient materials from the environment to obtain energy in order to stay alive. The animals are
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