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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.
Any elevation in BP is accompanied by increased risk of cardiovascular and cerebrovascular events and renal damage. The most distinctive pathological consequence
Q. Enumerate different implant materials? Biomaterials fall into four categories: metal and metal alloys, ceramics (carbon included in this group) synthetic polymers, and natur
Adverse effects of Tenofovir disoproxil fumarate The most common adverse effects have been nausea, vomiting and diarrhea. Renal failure, including a Fanconi-like syndrome, has
Conservative Substitution: The nucleotide mutation that alters the amino acid sequence of protein, but which causes substitution of one amino acid with another which has a side ch
Explain the Productivity of ecology? When scientists study an ecosystem as a whole, they often examine the relationships between feeding, or trophic, levels. In order to do th
Besides the liver which is the other adnexal gland of the digestive system that releases substances in the duodenum participating in extracellular digestion? The other adnexal
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How was it proved in the case of Amoeba that the key to the life of a cell is Nucleus?
What is meant by terminal electron acceptor? Give examples of e acceptors for aerobic and anaerobic respiration.
Determine the uses of Potassium Water soluble and exchangeable potassium is readily available to plants. This is extracted with Morgan reagent (10% sodium acetate in 3% acetic
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