Rating Newest Oldest. Best Answer: Behind-the-scenes: When Star Trek creator Gene Roddenberry was asked about the NCC registry, he replied that there was no significance to the letters and numbers comprising the registry of the U.S.S. Enterprise.
Supraventricular Extrasystoles Supraventricular Extrasystoles - ECG Supraventricular extrasystole (SVES) is one of the most common abnormalities that is found in ECGs. The problem is caused by sinoatrial (SA) node itself or by other location in heart atria. The problem is premature emission of electric impulse that spreads throughout the atria and then it is transmitted to the ventricles.
RE: what causes the dicrotic notch? any one know what causes the dicrotic notch (read from the pulse integral channel from the heart) ? i know it reflects the cessation of systole..Follow.est Answer: Sudden closure of the aortic valve, causes a momentary elevated rebound in the pressure reading, such that the smooth downward slope of the pressure waveform is interrupted by a very brief upward movement; forming a sawtooth notch.