Results 51 to 60 of about 4,296 (231)

Design and implementation of a portable impedance cardiography system for noninvasive stroke volume monitoring

Journal of Medical Signals and Sensors, 2016
Measurement of the stroke volume (SV) and its changes over time can be very helpful for diagnosis of dysfunctions in the blood circulatory system and monitoring their treatments.
Hassan Yazdanian, Amin Mahnam, Mehdi Edrisi, Morteza Abdar Esfahani   +3 more
doaj  

Measurement and management of adult blood pressure in the peri‐operative period: updated guidelines from the Association of Anaesthetists and the British and Irish Hypertension Society

Anaesthesia, EarlyView.
Summary Introduction Maintaining stable blood pressure during surgery is a key responsibility of anaesthetists. Peri‐operative omission and reintroduction of antihypertensive drugs, general anaesthesia, neuraxial and regional techniques can all cause significant fluctuations in blood pressure, particularly in patients with hypertension. Since the first
Terry McCormack, Alex Wickham, Sinéad T. J. McDonagh, Matthew D. Wiles, Luca Faconti, Rachael Brooks, Simon G. Anderson, Andrew Hartle   +7 more
wiley   +1 more source

Impulse oscillometry in the diagnosis of obstructive ventilation disorders in pulmonary tuberculosis patients

Туберкулез и болезни лёгких, 2019
Impulse oscillometry (IO) possesses certain advantages (being non-invasive and requiring no special breathing maneuvers) but fundamental differences from the well-known methods of external respiration function assessment make it difficult to introduce it
L. D. Kiryukhina, O. S. Volodich, N. V. Denisova, N. G. Nefedova, S. A. Kovaleva, L. I. Аrchakova   +5 more
doaj   +1 more source

OSA Initiates Histone Lactylation That Drives PDE4B/FUS/AGT Axis to Pulmonary Hypertension

Cell Proliferation, EarlyView.
This study illustrates how chronic intermittent hypoxia (CIH) in obstructive sleep apnea (OSA) leads to hypertension via increased oxidative stress and mitochondrial dysfunction in pulmonary artery smooth muscle cells (PASMCs), causing glycolytic dysregulation. Lactate accumulation enhances histone lactylation, upregulating phosphodiesterase 4B (PDE4B),
Li Yang, Qing Ni, Yan He, Shijie Liu, Lulu Gan, Anni Dai, Yang Hu, Qian Liu, Xueling Yang, Jiqian Li, Yi Tao, Yunyu Li, Mingyue Xu   +12 more
wiley   +1 more source

Effects of temperature on electrical impedance of biological tissues: ex-vivo measurements

Journal of Electrical Bioimpedance
Bioelectrical impedance techniques have been useful in various applications, including body composition analysis, impedance plethysmography, impedance cardiography, lung ventilation, perfusion, and tissue characterization.
Dipa Safia Aktar, Pramanik Muralee Monohara, Rabbani Mamun, Kadir Muhammad Abdul   +3 more
doaj   +1 more source

arterioscope.sim: Enabling Simulations of Blood Flow and Its Impact on Bioimpedance Signals

Bioengineering
Objectives: Early detection of cardiovascular diseases and their pre-existing conditions, arteriosclerosis and atherosclerosis, is crucial to increasing a patient’s chance of survival. While imaging technologies and invasive procedures provide a reliable
Thomas Krispel, Vahid Badeli, Alireza Jafarinia, Alice Reinbacher-Köstinger, Christian Tronstad, Sascha Ranftl, Ørjan Grottem Martinsen, Håvard Kalvoy, Jonny Hisdal, Manfred Kaltenbacher, Thomas Hochrainer   +10 more
doaj   +1 more source

Short Distance Impedance Pneumography

Current Directions in Biomedical Engineering, 2018
Gold-standards for biosignal acquisition require body-spanning sensor positioning which is contradictory to the high integration of modern wearable medical monitors.
Klum Michael, Schenck Tianhao, Pielmus Alexandru, Tigges Timo, Orglmeister Reinhold   +4 more
doaj   +1 more source

Non‐epileptic paroxysmal events in Rett syndrome: A systematic review of case‐based and observational evidence

Developmental Medicine &Child Neurology, EarlyView.
This systematic review identifies and categorizes the spectrum of non‐epileptic paroxysmal events in Rett syndrome. Respiratory disturbances, behavioural episodes, and motor events were the most commonly reported. Improving clinician awareness and diagnostic clarity is key to avoiding unnecessary treatment and enhancing quality of life for individuals ...
Natasha Bhatti, Daniel E. Lumsden
wiley   +1 more source

Extracellular vesicle microRNAs are biomarkers of focal epilepsy but not epilepsy‐related respiratory dysfunction

Epilepsia, EarlyView.
Abstract Objective This study was undertaken to evaluate the diagnostic value of a set of preselected candidate microRNAs (miRNAs) extracted from plasma‐based extracellular vesicles (EVs) to identify patients with seizure‐related respiratory dysfunction. Methods A two‐step design was applied.
Sylvain Rheims, Hayet Kouchi, Florence Busato, Stanislas Lagarde, David Derbala, Sébastien Boulogne, Mathilde Leclercq, Jessica Chenais, Sandrine Bouvard, Fabrice Bartolomei, Laurent Bezin, Jorg Tost   +11 more
wiley   +1 more source

Respiratory dysfunction and fatal apnea during pilocarpine‐induced status epilepticus

Epilepsia, EarlyView.
Abstract Objective Status epilepticus (SE) is second only to sudden unexpected death in epilepsy as a cause of seizure‐related mortality. The progression of respiratory dysfunction during experimental SE remains poorly characterized. We investigated how pilocarpine‐induced SE affects respiration in mice.
Chengsan Sun, Rachel Spera, John M. Williamson, Suchitra Joshi, Bhavya Guduru, Harini Ganabady, Jaideep Kapur   +6 more
wiley   +1 more source