Results 11 to 20 of about 925,843 (350)

Determinants of Pulse Pressure [PDF]

open access: yesHypertension, 1998
Abstract —We have searched to define the major arterial parameters that determine aortic systolic (P s ) and diastolic (P d ) pressure in the dog. Measured aortic flows were used as input to the 2-element windkessel model of the arterial system, with peripheral resistance ...
N, Stergiopulos, N, Westerhof
openaire   +2 more sources

A review of machine learning techniques in photoplethysmography for the non-invasive cuff-less measurement of blood pressure [PDF]

open access: yes, 2020
Hypertension or high blood pressure is a leading cause of death throughout the world and a critical factor for increasing the risk of serious diseases, including cardiovascular diseases such as stroke and heart failure.
El-Hajj, C., Kyriacou, P. A.
core   +1 more source

Pulse pressure and prognosis [PDF]

open access: yesHeart, 2001
Many epidemiological studies have demonstrated the close relation between blood pressure and the subsequent development of cardiovascular disease. Blood pressure has characteristically been defined by its direct relation with cardiac output and peripheral resistance. In essential hypertension, the most consistent cause for an elevated blood pressure is
R S, Khattar, J D, Swales
openaire   +3 more sources

Non-invasive assessment of pulsatile intracranial pressure with phase-contrast magnetic resonance imaging. [PDF]

open access: yesPLoS ONE, 2017
Invasive monitoring of pulsatile intracranial pressure can accurately predict shunt response in patients with idiopathic normal pressure hydrocephalus, but may potentially cause complications such as bleeding and infection.
Geir Ringstad   +5 more
doaj   +1 more source

Accuracy of pulse interval timing in ambulatory blood pressure measurement [PDF]

open access: yes, 2016
Blood pressure (BP) monitors rely on pulse detection. Some blood pressure monitors use pulse timings to analyse pulse interval variability for arrhythmia screening, but this assumes that the pulse interval timings detected from BP cuffs are accurate ...
Blake, James R.   +4 more
core   +1 more source

Novel blood pressure and pulse pressure estimation based on pulse transit time and stroke volume approximation

open access: yesBioMedical Engineering OnLine, 2018
Background Non-invasive continuous blood pressure monitors are of great interest to the medical community due to their value in hypertension management. Recently, studies have shown the potential of pulse pressure as a therapeutic target for hypertension,
Joonnyong Lee   +5 more
doaj   +1 more source

An advanced hydraulic fracturing technique: Pressure propagation and attenuation mechanism of step rectangular pulse hydraulic fracturing

open access: yesEnergy Science & Engineering, 2023
Hydraulic fracturing technology has played a pivotal role as a key technology in shale gas development, but the geological environmental problems caused have been worrying the public.
Pei He   +6 more
doaj   +1 more source

Elevated pulse pressure and its associations with demographic and clinical parameters in a clinically representative sample of outpatients with psychotic disorders

open access: yesBJPsych Open, 2022
Elevated pulse pressure is associated with metabolic and neurocognitive diseases. Preliminary small-scale studies among patients with psychotic disorders have indicated that these patients had an increased pulse pressure compared with controls.
Christopher Holmberg   +2 more
doaj   +1 more source

Development of tubular cardiovascular phantom system for pulse transit time simulation [PDF]

open access: yes, 2019
This paper presents on the development of a tubular cardiovascular phantom system to simulate pulse transit time (PTT). The PTT defined as the delay time between two pulses in one cardiac cycle has been shown to be promising method for cuffless ...
Correia, Ricardo   +4 more
core   +1 more source

Impaired Central Pulsatile Hemodynamics in Children and Adolescents With Marfan Syndrome

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017
BackgroundMarfan syndrome is characterized by aortic root dilation, beginning in childhood. Data about aortic pulsatile hemodynamics and stiffness in pediatric age are currently lacking.
Andrea Grillo   +9 more
doaj   +1 more source

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