The photoplethysmographic (PPG) waveform, also known as the pulse oximeter waveform,
is one of the most commonly displayed clinical waveforms. First described in the 1930s, the …

Purpose To systematically review the accuracy of the variation in pulse oxymetry
plethysmographic waveform amplitude (∆ POP) and the Pleth Variability Index (PVI) as …

Expert performance is commonly accompanied by a subjective state of optimal experience
called flow. Previous research has shown positive correlations between flow and quality of …

Responses to fear‐and sadness‐inducing films were assessed using a broad range of
cardiovascular (heart rate, T‐wave amplitude, low‐and high‐frequency heart rate variability …

Objectives In septic patients, reliable non-invasive predictors of fluid responsiveness are
needed. We hypothesised that the respiratory changes in the amplitude of the …

BACKGROUND Hemorrhage is a leading cause of traumatic death. We hypothesized that
state-of-the-art feature extraction and machine learning techniques could be used to …

BACKGROUND: The primary objective of this study was to determine whether alterations in
the pulse oximeter waveform characteristics would track progressive reductions in central …

Background Goal-directed volume expansion is increasingly used for fluid management in
mechanically ventilated patients. The Pleth Variability Index (PVI) has been shown to …

Photoplethysmography (PPG) allows various statements about the physiological state. It
supports multiple recording setups, ie, application to various body sites and different …

Background Plethysmographic variability index (PVI) is an accurate predictor of fluid
responsiveness in mechanically ventilated patients. However, the site of measurement of the …