Results 21 to 30 of about 3,415,425 (290)

Pulse pressure as a predictor of stroke [PDF]

Expert Review of Neurotherapeutics, 2008
The current guidelines for the detection and management of high blood pressure depend exclusively on the measurement of systolic and diastolic blood pressure, although these are only two specific p...
Chamila, Geeganage, Gillian, Sare, Philip M W, Bath   +2 more
openaire   +2 more sources

Pulse-pressure variation and hemodynamic response in patients with elevated pulmonary artery pressure: a clinical study [PDF]

, 2010
Pulse-pressure variation (PPV) due to increased right ventricular afterload and dysfunction may misleadingly suggest volume responsiveness. We aimed to assess prediction of volume responsiveness with PPV in patients with increased pulmonary artery ...
Hendrik Bracht, Moritz Wyler von Ballmoos, Christoph C Ganter, Margareta Roeck, Jukka Takala, Wyler von Ballmoos, Moritz, Baenziger, Bertram, Takala, Jukka, Stephan M Jakob, Ganter, Christoph C, Ralph Schröder, Bracht, Hendrik, Roeck, Margareta, Jakob, Stephan M, David Tueller, Porta, Francesca, Schröder, Ralph, Bertram Baenziger, Tueller, David, Francesca Porta, Ganter CC, Schröder R, Baenziger B, Tueller D, Wyler von Ballmoos M, Roeck M, Porta F, Jakob SM, Bracht H, Takala J   +29 more
core   +2 more sources

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

Energy 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, Zhaohui Lu, Zhi Deng, Yongkui Huang, Dawei Qin, Liming Ouyang, Menglai Li   +6 more
doaj   +1 more source

Impaired Central Pulsatile Hemodynamics in Children and Adolescents With Marfan Syndrome

Journal 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, Paolo Salvi, Susan Marelli, Lan Gao, Lucia Salvi, Andrea Faini, Giuliana Trifirò, Renzo Carretta, Alessandro Pini, Gianfranco Parati   +9 more
doaj   +1 more source

Pulse pressure variation and volume responsiveness during acutely increased pulmonary artery pressure: an experimental study [PDF]

, 2010
We found that pulse pressure variation (PPV) did not predict volume responsiveness in patients with increased pulmonary artery pressure. This study tests the hypothesis that PPV does not predict fluid responsiveness during an endotoxin-induced acute ...
Stefanie Krahenbuhl, Daudel, Fritz, Jukka Takala, Tüller, David, Jakob, Stephan M, David Tueller, Krähenbühl, Stefanie, Takala, Jukka, Fritz Daudel, Stephan M Jakob, Jakob SM, Krähenbühl S, Tüller D, Daudel F, Takala J   +14 more
core   +2 more sources

Association of Pulse Pressure Difference and Diabetes Mellitus in Chinese People: A Cohort Study

International Journal of General Medicine, 2021
Chunlei Wu, Denhua Ma, Yu Chen Department of Cardiac Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, 317000, People’s Republic of ChinaCorrespondence: Yu Chen People’s Republic of ChinaEmail chenyu5835@126.
Wu C, Ma D, Chen Y
doaj  

Formation Principle and Characteristics of Self-Supercharging Pulsed Water Jet

Chinese Journal of Mechanical Engineering, 2022
High-pressure pulsed water jet technology has considerable development potential in the field of rock fragmentation. To overcome the shortcomings of existing pulsed jets, a self-supercharging pulsed water jet (SSPWJ) generation method is proposed, which ...
Zhaolong Ge, Yuanfei Ling, Jiren Tang, Yiyu Lu, Yangkai Zhang, Lei Wang, Qi Yao   +6 more
doaj   +1 more source

Dynamic and volumetric variables reliably predict fluid responsiveness in a porcine model with pleural effusion [PDF]

, 2013
Background: The ability of stroke volume variation (SVV), pulse pressure variation (PPV) and global end-diastolic volume (GEDV) for prediction of fluid responsiveness in presence of pleural effusion is unknown.
Meybohm, Patrick, Matthias Gruenewald, Grünewald, Matthias Lars, Jan Schöttler, Katharina Heß, Steinfath, Markus, Heß, Katharina, Ole Broch, Jochen Renner, Schöttler, Jan, Patrick Meybohm, Bein, Berthold, Gruenewald, Matthias, Bein, Berthold Helmut, Berthold Bein, Renner, Jochen, Broch, Ole, Markus Steinfath   +17 more
core   +1 more source

Intracranial pressure pulse amplitude during changes in head elevation: a new parameter for determining optimum cerebral perfusion pressure? [PDF]

, 2010
During short-term postural changes, the factors determining the amplitude of intracranial pulse pressure (ICPPA) remain constant, except for cerebrovascular resistance (CVR).
Beck, Jürgen, Raabe, Andreas, Mahfoud, Felix   +2 more
core   +2 more sources

Dual-pulse laser induced breakdown spectroscopy in the vacuum ultraviolet with ambient gas: spectroscopic analysis and optimization of limit of detection of carbon and sulfur in steel [PDF]

, 2012
Laser Induced Breakdown Spectroscopy (LIBS) in the vacuum ultraviolet (VUV) spectral region was applied to standard steel samples in dual-pulse excitation mode with an ambient gas. Two lasers were employed in collinear geometry, one as an ablation laser (
Jiang, Xi
core   +2 more sources