Results 81 to 90 of about 4,035,259 (343)

Bloqueio simpático esquerdo por videotoracoscopia no tratamento da cardiomiopatia dilatada Bloqueo simpático izquierdo por videotoracoscopia en el tratamiento de la cardiomiopatía dilatada Endoscopic left sympathetic blockade in the treatment for dilated cardiomyopathy

Arquivos Brasileiros de Cardiologia, 2010
FUNDAMENTO: O nível da atividade nervosa simpática é um dos mais importantes determinantes prognósticos em pacientes com insuficiência cardíaca. OBJETIVO: O propósito dessa investigação foi realizar um estudo de viabilidade do emprego do bloqueio ...
Paulo M. Pêgo-Fernandes, Luiz Felipe P. Moreira, Germano Emílio C. Souza, Fernando Bacal, Edimar Alcides Bocchi, Noedir Antônio G. Stolf, Fábio Biscegli Jatene   +6 more
doaj  

Changes in stroke volume during an alveolar recruitment maneuvers through a stepwise increase in positive end expiratory pressure and transient continuous positive airway pressure in anesthetized patients. A prospective observational pilot study

Journal of Anaesthesiology Clinical Pharmacology, 2019
Background and Aims: Recruitment maneuvers may be used during anesthesia as part of perioperative protective ventilation strategy. However, the hemodynamic effect of recruitment maneuvers remain poorly documented in this setting.
Jean Luc Hanouz, Axel Coquerel, Christophe Persyn, Dorothée Radenac, Jean Louis Gérard, Marc Olivier Fischer   +5 more
doaj   +1 more source

Effect of Combined Mental Task and Metaboreflex Activation on Hemodynamics and Cerebral Oxygenation in Patients With Metabolic Syndrome

Frontiers in Physiology, 2020
Objective: The hemodynamic response to muscle metaboreflex has been reported to be significantly altered by metabolic syndrome (MS), with exaggerated systemic vascular resistance (SVR) increments and reduced cardiac output (CO) in comparison to healthy ...
Azzurrra Doneddu, Silvana Roberto, Virginia Pinna, Virginia Pinna, Sara Magnani, Sara Magnani, Giovanna Ghiani, Gianmarco Sainas, Gabriele Mulliri, Stefano Serra, Seyed Alireza Hosseini Kakhak, Raffaele Milia, Romina Lecis, Marco Guicciardi, Antonio Crisafulli, Antonio Crisafulli   +15 more
doaj   +1 more source

Analysis of Temperature and Stress Distribution on the Bond Properties of Hybrid Tailored Formed Components

Advanced Engineering Materials, EarlyView.
Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek, Eduard Ortlieb, Caner‐Veli Ince, Julius Peddinghaus, Hendrik Wester, Johanna Uhe, Annika Raatz, Kai Brunotte   +7 more
wiley   +1 more source

Diferenças relacionadas ao sexo nos volumes ventriculares e na fração de ejeção do ventrículo esquerdo estimados por cintilografia de perfusão miocárdica: comparação entre os programas Quantitative Gated SPECT (QGS) e Segami Gender differences in ventricular volumes and left ventricle ejection fraction estimated by myocardial perfusion imaging: comparison of Quantitative Gated SPECT (QGS) and Segami software programs

Arquivos Brasileiros de Cardiologia, 2007
OBJETIVO: Analisar as diferenças relacionadas ao sexo nas medidas obtidas pelos programas Segami e Quantitative Gated SPECT (QGS). MÉTODOS: Cento e oitenta e um indivíduos assintomáticos sem evidência de cardiopatia foram submetidos a estudos de perfusão
Alice Tatsuko Yamada, Guilherme de Carvalho Campos Neto, José Soares Júnior, Maria Clementina P. Giorgi, Fernando Araújo, José Claudio Meneghetti, Alfredo José Mansur   +6 more
doaj   +1 more source

Electronic Control System for Optimized Resonance Operation of Dielectric Elastomer Pumps through Self‐Sensing

Advanced Engineering Materials, EarlyView.
A powerful electronic control system enables a dielectric elastomer pump to operate at resonance, matching conventional pump performance. Using self‐sensing to reconstruct load pressure dynamically, the adaptive control adjusts resonance frequency accordingly.
Matthias Baltes, Benedikt Holz, Daniel Bruch, Paul Motzki   +3 more
wiley   +1 more source

Internal jugular distensibility index as a predictor of fluid responsiveness in adult patients undergoing elective surgery – A prospective accuracy study

Indian Journal of Anaesthesia
Background and Aims: Assessing the intravascular volume is necessary in patients undergoing surgery, but predicting how the body will respond to fluid can be challenging.
Dita Aditianingsih, Aldy Heriwardito, Laksmi Senja Agusta, El Nissi Leonard, Chrisella Annabelle   +4 more
doaj   +1 more source

Hemodynamic Responses during Enduro-Motorcycling Performance

Frontiers in Physiology, 2017
Much of the information available in the literature on physiological responses during Enduro motorcycling is related to heart rate (HR) and blood lactate (BLa).
Irene Sanna, Virginia Pinna, Raffaele Milia, Silvana Roberto, Sergio Olla, Gabriele Mulliri, Antonio Crisafulli   +6 more
doaj   +1 more source

Ultrahigh Piezoelectricity in Truss‐Based Ferroelectric Ceramics Metamaterials

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By leveraging the unique combination of polarization direction and loading state, ultrahigh piezoelectricity is achieved through careful tuning of the relative density and scaling ratio in truss‐based ferroelectric metamaterials. This approach enables the simultaneous realization of extremely high piezoelectric constants and ultralow dielectric ...
Jiahao Shi, Kang Ju, Haoyu Chen, Valérie Orsat, Agus P. Sasmito, Ali Ahmadi, Abdolhamid Akbarzadeh   +6 more
wiley   +1 more source

Reliability of hemodynamic parameters measured by bioimpedance cardiography at different intensities during incremental exercise testing

Frontiers in Cardiovascular Medicine
BackgroundBioimpedance cardiography offers a non-invasive and time-efficient method to measure hemodynamic parameters. Previous studies only investigated its reliability under steady-state conditions and at maximum load but not at ventilatory thresholds (
Raphael Schoch, Jonathan Wagner, Max Niemeyer, Fabienne Bruggisser, Denis Infanger, Justin Carrard, Benedikt Gasser, Arno Schmidt-Trucksäss, Arno Schmidt-Trucksäss, Raphael Knaier   +9 more
doaj   +1 more source