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depolarization |
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depolarization [dē‚pō·lə·rə′zā·shən] (electricity) The removal or prevention of polarization in a substance (for example, through the use of a depolarizer in an electric cell) or of polarization arising from the field due to the charges induced on the surface of a dielectric when an external field is applied. (optics) The resolution of polarized light in an optical depolarizer. 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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Patches were held at -100 m V and single-channel currents were recorded during either 100-ms slep depolarizations between -70 and 0 mV or 80-ms steps to potentials between -50 and - 120 mV immediately after a 3-ms depolarization to 0 mV. Experimental evidence has been provided that phase 2 early after depolarizations (EAD) can be generated from hypertrophied left ventricular wall in the absence of action potential duration (APD) prolonging agents. Aside from correcting any of these predisposing conditions, treatment of LQTS is directed at regulating the heart rate, normalizing the QT length, and preventing early ventricular depolarizations. |
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