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  1. Voll Reply
    Pulse transit time refers to the time it takes a pulse wave to travel between two arterial sites. The speed at which this arterial pressure wave travels is directly proportional to blood pressure. An acute rise in blood pressure causes vascular tone to increase and hence .
  2. Terg Reply
    Pulse transit time (PTT) measurement offers beat-to-beat cardiovascular information. 1 Such measurements have been used previously to infer changes in autonomic activity 2 and arterial pressure. 3 PTT, measured as the interval from the ECG R wave to the pulse plethysmograph upstroke, was used recently to assess cardiovascular responses to.
  3. Kajizragore Reply
    Pulse transit time (PTT) is the time taken for the arterial pulse pressure wave to travel from the aortic valve to a peripheral site. For convenience, it is usually measured from the R wave on the electrocardiogram to the pulse wave arrival at the finger. Pulse transit time is inversely proportional to blood pressure, and the falls in blood pressure which occur with inspiration (pulsus.
  4. Tobei Reply
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  5. Kalkree Reply
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  6. Vot Reply
    Pulse transit time (PTT), the interval between ventricular electrical activity and peripheral pulse wave, is assumed to be a surrogate marker for blood pressure (BP) changes. The objective of this study was to analyze PTT and its relation to BP during cardiopulmonary exercise tests (CPET). In 20 patients (mean age 51 +/- years).
  7. Fenrill Reply
    Sep 14,  · Methods are mainly based on pulse wave velocity (PWV)/pulse transit time (PTT) and pulse wave analysis (PWA), where the pulse, e.g. electrocardiogram (ECG), photoplethysmogram (PPG) and.
  8. Aragal Reply
    May 27,  · Introduction. Pulse transit time (PTT) is the time it takes for the pressure or flow wave to propagate between two arterial sites. PTT measured as the time delay between invasive proximal and distal blood pressure or flow (BP or BF) waveforms (henceforth referred to as invasive PTT [I‐PTT]) has been shown to correlate well with acute changes in BP over a wide physiological BP range (Geddes.