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ectopic focus |
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ectopic focus, an area in the heart that initiates abnormal beats. Ectopic foci may occur in both healthy and diseased hearts and are usually associated with irritation of a small area of myocardial tissue. They are produced in association with myocardial ischemia, drug (catecholamine) effects, emotional stress, and stimulation by foreign objects, including pacemaker catheters. Also called ectopic pacemaker. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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ectopia of the macula ectopia pupillae congenita ectopia testis ectopic ectopic ACTH syndrome ectopic beat ectopic Cushing syndrome ectopic focus ectopic hormone ectopic kidney ectopic myelopoiesis ectopic pacemaker Ectopic parathyroid tissue ectopic pregnancy ectopic rhythm |
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