Photoplethysmography
AA Alian, KH Shelley�- Best Practice & Research Clinical Anaesthesiology, 2014 - Elsevier
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�…
is one of the most commonly displayed clinical waveforms. First described in the 1930s, the�…
Cardiac output monitoring: a contemporary assessment and review
Objective: An increasing number of minimally or noninvasive devices are available to
measure cardiac output in the critical care setting. This article reviews the underlying�…
measure cardiac output in the critical care setting. This article reviews the underlying�…
[HTML][HTML] Inpatient respiratory arrest associated with sedative and analgesic medications: impact of continuous monitoring on patient mortality and severe morbidity
SP McGrath, KM McGovern, IM Perreard…�- Journal of Patient�…, 2021 - journals.lww.com
Objectives The primary study objective was to investigate the impact of surveillance
monitoring (ie, continuous monitoring optimized for deterioration detection) on mortality and�…
monitoring (ie, continuous monitoring optimized for deterioration detection) on mortality and�…
[HTML][HTML] The effects of passive leg raising may be detected by the plethysmographic oxygen saturation signal in critically ill patients
A Beurton, JL Teboul, F Gavelli, FA Gonzalez, V Girotto…�- Critical Care, 2019 - Springer
Background A passive leg raising (PLR) test is positive if the cardiac index (CI) increased
by> 10%, but it requires a direct measurement of CI. On the oxygen saturation�…
by> 10%, but it requires a direct measurement of CI. On the oxygen saturation�…
[HTML][HTML] Toward accurate extraction of respiratory frequency from the photoplethysmogram: Effect of measurement site
Background: It is known that the respiration-modulated photoplethysmographic (PPG)
signals could be used to derive respiratory frequency (RF) and that PPG signals could be�…
signals could be used to derive respiratory frequency (RF) and that PPG signals could be�…
Estimation of individual-specific progression to impending cardiovascular instability using arterial waveforms
Trauma patients with “compensated” internal hemorrhage may not be identified with
standard medical monitors until signs of shock appear, at which point it may be difficult or too�…
standard medical monitors until signs of shock appear, at which point it may be difficult or too�…
Running on empty? The compensatory reserve index
SL Moulton, J Mulligan, GZ Grudic…�- Journal of Trauma and�…, 2013 - journals.lww.com
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�…
state-of-the-art feature extraction and machine learning techniques could be used to�…
Individual-specific, beat-to-beat trending of significant human blood loss: the compensatory reserve
VA Convertino, JT Howard, C Hinojosa-Laborde…�- Shock, 2015 - journals.lww.com
Current monitoring technologies are unable to detect early, compensatory changes that are
associated with significant blood loss. We previously introduced a novel algorithm to�…
associated with significant blood loss. We previously introduced a novel algorithm to�…
Massive transfusion prediction with inclusion of the pre-hospital Shock Index
Background Detecting occult bleeding can be challenging and may delay resuscitation. The
Shock Index (SI) defined as heart rate divided by systolic blood pressure has attracted�…
Shock Index (SI) defined as heart rate divided by systolic blood pressure has attracted�…
Detection of low-volume blood loss: compensatory reserve versus traditional vital signs
BACKGROUND Humans are able to compensate for low-volume blood loss with minimal
change in traditional vital signs. We hypothesized that a novel algorithm, which analyzes�…
change in traditional vital signs. We hypothesized that a novel algorithm, which analyzes�…