Results 91 to 100 of about 21,313 (265)

Uloga tilt testa u diferencijalnoj dijagnostici neobjašnjene sinkope [PDF]

, 2015
The aim of this retrospective study (February 2012 – September 2014) was to assess the role of head-up tilt-table test in patients with unexplained syncope.
Hrvoje Hećimović, Hrvoje Pintarić, Marko Mornar Jelavić, Vesna Erceg, Zdravko Babić   +4 more
core   +1 more source

Arctic lake trout (Salvelinus namaycush) show evidence of seasonal acclimation of cardiac adrenergic sensitivity but not heat tolerance

Journal of Fish Biology, EarlyView.
Abstract Many Arctic fishes experience prolonged periods of extreme cold and large thermal variation over both rapid and seasonal time scales which challenge critical physiological functions. In the central Canadian Arctic, we caught wild adult lake trout (Salvelinus namaycush) acclimatized to winter and summer temperatures to determine the extent to ...
Emily P. Williams, Les N. Harris, Jean‐Sébastien Moore, Ella K. Middleton, Shira A. Berkelhammer, Ben Speers‐Roesch, Matthew J. H. Gilbert   +6 more
wiley   +1 more source

Bloqueio atrioventricular no pós-operatório de cirurgia cardíaca valvar: incidência, fatores de risco e evolução hospitalar Atrioventricular block in the postoperative period of heart valve surgery: incidence, risk factors and hospital evolution

Brazilian Journal of Cardiovascular Surgery, 2011
INTRODUÇÃO: Distúrbios do sistema de condução cardíaco são complicações potenciais e conhecidas dos procedimentos de cirurgia cardíaca valvar. OBJETIVOS: Investigar a associação entre fatores peri-operatórios com bloqueio atrioventricular (BAV) e a ...
Andres Di Leoni Ferrari, Carolina Pelzer Süssenbach, João Carlos Vieira da Costa Guaragna, Jacqueline da Costa Escobar Piccoli, Guilherme Ferreira Gazzoni, Débora Klein Ferreira, Luciano Cabral Albuquerque, Marco Antonio Goldani   +7 more
doaj   +1 more source

Initial dynamics of the EKG during an electrical defibrillation of the heart [PDF]

In tests on 11 mature dogs, immobilized by means of an automatic blocking and synchronization system, artefact free EKG were obtained, beginning 0.04-0.06 sec after passage of a defibrillating current. Different versions of the start of fibrillation were
Bikov, I. I., Chebotarov, Y. P., Nikolaev, V. G.   +2 more
core   +1 more source

Microgravity‐induced changes in skeletal muscle and possible countermeasures: What we can learn from bed rest and human space studies

Experimental Physiology, EarlyView.
Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti, Bergita Ganse, Nicola A. Maffiuletti, Rob C. I. Wüst, Gustav J. Strijkers, Andy Sanderson, Hans Degens   +6 more
wiley   +1 more source

Perfil clínico de pacientes chagásicos e não-chagásicos portadores de marca-passo cardíaco artificial Clinical profile of Chagas and non-Chagas' disease patients with cardiac pacemaker

Revista da Sociedade Brasileira de Medicina Tropical, 2006
O objetivo do estudo foi comparar pacientes chagásicos e não-chagásicos com marca-passo cardíaco artificial uni ou bicameral quanto à fração de ejeção do ventrículo esquerdo, o limiar de estimulação ventricular e a incidência de arritmias cardíacas ...
Leonor Garcia Rincon, Manoel Otávio da Costa Rocha, Marco Túlio Baccarini Pires, Bruna Guimarães Oliveira, Vladimir da Costa Val Barros, Marcio Vinicius Lins Barros, Antônio Luiz Pinho Ribeiro   +6 more
doaj   +1 more source

Advances in cardiac devices and bioelectronics augmented with artificial intelligence

The Journal of Physiology, EarlyView.
Abstract figure legend Interfaces between the human heart, diagnostic bioelectronics, artificial intelligence, and clinical care. From left to right: Human heart and biosensor interface; representative waveforms of common diagnostic bioelectronic sensing modalities.
Charles Stark, Eric Rytkin, Andrei Alexandru Mircea, Igor R. Efimov   +3 more
wiley   +1 more source

Cardiac Pacemakers: The Route to Implantable Artificial Intelligence

, 2023
Since the dawn of the 20th century, the field of medical science has undergone remarkable advancements, largely driven by the integration of technology. Notably, the utilization of embedded technology to restore malfunctioning organs to a state closer to their natural functionality has found its pinnacle in the realm of permanent transvenous pacemaker ...
openaire   +1 more source

Towards a reusable architecture for message exchange in pervasive healthcare [PDF]

, 2013
The main objective of this paper is to present a reusable architecture for message exchange in pervasive healthcare environments meant to be generally applicable to different applications in the healthcare domain.
Cardoso de Moraes, João Luís, Ferreira Pires, Luis, Lopes de Souza, Wanderley, Prado, Antonio Francisco do   +3 more
core   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

The Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger, Verena Charwat, Kevin E. Healy, Samuel Wall, Aslak Tveito   +4 more
wiley   +1 more source