Estella Pulse Generators - BIOTRONIK USA - News

Table 21: Acronyms and TermsCVATMTermEvokedResponseLOCMaxVCCAmpNCPolarizationArtifactSafety MarginSAEstella Pulse Generators Technical Manual 71DefinitionCapture Verification—A component of the VCCfeature that provides beat-to-beat classification ofcapture and non-capture.Automatic Threshold Measurement—A componentof the VCC feature that periodically measures theventricular pacing threshold. ATM can only occurafter a successful CV.The intracardiac signal measured during electricalactivation of the cardiac tissue.Loss-of-Capture—The VCC feature classifies loss ofcapture when a series of ventricular pacing pulses atvarying AV delays did not capture (with a maximumof 3 consecutive NC’s).Threshold test start—This programmable parameteris the maximum voltage setting that VCC will setafter a successful CV.Non-Capture—The VCC feature identifies a noncaptureas a single ventricular pacing pulse withoutcapture.The signal or noise caused by the pacing pulsebetween the pacing electrode and the cardiac tissue.The safety margin is the difference between thepacing threshold and the programmed pacingamplitude.Signal Analysis—A component of the VCC featurethat periodically determines whether evokedresponses are appropriately detected and thatpacing artifact is sufficiently small in amplitude. Ifthe SA determines that the signal is not acceptable,then the other portions of the VCC feature cannot beactivated.