threshold

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threshold

(Commencement), noun beginning, inception, onset, outbreak, overture, preamble, prologue, start

threshold

(Entrance), noun door, entrance way, entry, gateway, sill

threshold

(Verge), noun brink, edge
Associated concepts: monetary threshold
See also: boundary, cornerstone, entrance, margin, onset, outline, outset, start
References in periodicals archive ?
Relation of the intraoperative defibrillation threshold to successive postoperative defibrillation with an automatic implantable cardioverter defibrillator.
The Atlas(R)+ HF CRT-D, with 36 joules of delivered energy, is the world's most powerful resynchronization device and provides increased safety margins for patients with -- or likely to develop -- high defibrillation thresholds.
InSync Sentry also offers 35 joules of delivered energy, which is important because studies have indicated that heart failure patients sometimes require more energy to terminate life-threatening arrhythmias, and their defibrillation thresholds may rise over time.
Additionally, with 32 Joules (stored) and the flexibility of programmable Waveforms/Shocking Vectors, the Photon(R) Micro DR/VR ICD family affords tremendous therapeutic flexibility for managing patient defibrillation thresholds (DFTs).
New products help ensure effective therapy delivery even for patients with high defibrillation thresholds, provide additional disease management monitors for heart failure patients or patients at risk for sudden cardiac arrest and can be implanted through a smaller incision due to reduced size
With the proprietary DC Fibber(TM) VF Induction, Photon Micro DR/VR ICDs offer a fast, efficient way to assess device performance and patient defibrillation thresholds (DFTs), by delivering a single, direct current pulse through the high voltage electrodes.