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Long QT intervals predispose the patient to an R-on-T phenomenon, wherein the R-wave, representing ventricular depolarization, occurs during the relative refractory period at the end of repolarization (represented by the latter half of the T-wave). An R-on-T can initiate torsades. Sometimes, pathologic T-U waves may be seen in the ECG before ...
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It is important to note that microshock (or micro-shock) are not IEV [2] defined terms and are not used in any international standard. "Micro-shock" is an otherwise imperceptible electric current applied directly, or in very close proximity, to the heart muscle of sufficient strength, frequency, and duration to cause disruption of normal cardiac function.
Fine ventricular fibrillation as seen on a rhythm strip [13] Ultrasound confirmation of above rhythm strip [13] Log-log graph of the effect of alternating current I of duration T passing from left hand to feet as defined in IEC publication 60479–1. [14] AC-1: imperceptible AC-2: perceptible but no muscle reaction
In philosophy, Occam's razor (also spelled Ockham's razor or Ocham's razor; Latin: novacula Occami) is the problem-solving principle that recommends searching for explanations constructed with the smallest possible set of elements.
Should this article not mention the R-on-T phenomenon, which basically is when a PVC ruins the T wave of the preceding beat, usually causing ventricular fibrillation (and thus risk of cardiac arrest and sudden death)? 70.26.71.233 04:35, 8 December 2010 (UTC)
It defies expectations (and gravity, okay I'm sorry for that), with exceptional pacing, jaw-dropping musical numbers and some of the best costume and production design work in recent memory.
A. A schematic view of an idealized action potential illustrates its various phases as the action potential passes a point on a cell membrane. B. Actual recordings of action potentials are often distorted compared to the schematic view because of variations in electrophysiological techniques used to make the recording.