Background The venous excess ultrasound (VExUS) score is a multi-organ Doppler
approach to assess venous congestion. Despite growing use of VExUS in research and …

Providing intravenous (IV) fluids to a patient with signs or symptoms of hypoperfusion is
common. However, evaluating the IV fluid 'dose–response'curve of the heart is elusive. Two …

Objective Doppler ultrasonography of the common carotid artery is used to infer stroke
volume change and a wearable Doppler ultrasound has been designed to improve this …

Background: The likelihood of a patient being preload responsive—a state where the
cardiac output or stroke volume (SV) increases significantly in response to preload …

EditordInferring changes in stroke volume (SVD) is of clinical interest because SVD can both
guide resuscitation and detect haemodynamic impairment, for example, cryptogenic …

Objective Carotid Doppler ultrasound has been a topic of recent interest, as it may be a
promising noninvasive hemodynamic monitoring tool. In this study, the relation between …

BACKGROUND: Pericardial tamponade can often be diagnosed through clinical findings
and echocardiography; however, the diagnosis can be aided by demonstrating the …

Background: A novel, wireless, ultrasound biosensor that adheres to the neck and measures
real-time Doppler of the carotid artery may be a useful functional hemodynamic monitor. A …

BACKGROUND We have developed a wireless, wearable Doppler ultrasound system that
continuously measures the common carotid artery Doppler pulse. A novel measure from this …

A preload challenge (PC) is a clinical maneuver that, first, increases the cardiac filling (ie,
preload) and, second, calculates the change in cardiac output. Fundamentally, a PC is a …