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System for forming a conduction block in a cardiac tissue structure for treating a cardiac arrhythmia in a patient's heart, methods for treating a cardiac arrhythmia in a patient's heart, and for setting up a cardiac arrhythmia treatment system from a a plurality of cardiac delivery systems, and, system for treating a cardiac arrhythmia in a patient's heart
System for forming a conduction block in a cardiac tissue structure for treating a cardiac arrhythmia in a patient's heart, methods for treating a cardiac arrhythmia in a patient's heart, and for setting up a cardiac arrhythmia treatment system from a a plurality of cardiac delivery systems, and, system for treating a cardiac arrhythmia in a patient's heart
"SYSTEM FOR FORMING A DRIVING BLOCK IN A HEART TISSUE STRUCTURE TO TREAT A HEART ARRYTHMIA IN A PATIENT HEART, METHODS FOR TREATING A HEART ARRYTHMIA IN A HEART OF A PATIENT AND ARTRAT CART OF A MULTIPLE OF HEART DISTRIBUTION SYSTEMS, AND, SYSTEM TO TREAT A HEART ARRYTHMIA IN A PATIENT HEART "A system (20) distributes fibroblasts to a region of cardiac tissue at a location associated with a cardiac arrhythmia in a patient to form a conduction block in the region. A cardiac delivery system (20) is coupled to a source of firbroblasts (15) and distributes the fibroblasts to the location to form a conduction block. Substantial cardiac ablation is thus avoided. A contact element (430) is shaped to correspond with a patterned region of tissue to distribute fibroblasts throughout the pattern, such as linear, curvilinear, or circumferential patterns, as required to treat particular arrhythmias. A pulmonary vein isolation assembly has a loop-shaped or expandable element that operates in conjunction with a needle system that distributes fibroblast cells in a circumferential region of tissue engaged by the expandable element where a pulmonary vein extends from an atrium. Methods include providing fibroblast cells as autologous cells in an injectable preparation.
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