Results 91 to 100 of about 89,050 (201)

Cardiovascular reserve as an integrative physiological construct: Current evidence, emerging technologies and future directions

Clinical Physiology and Functional Imaging, Volume 46, Issue 6, November 2026.
Abstract Cardiovascular reserve represents the integrated physiological capacity of the cardiovascular system to maintain tissue perfusion during increasing physiological stress. Although reserve has long been recognized conceptually, its direct assessment remains challenging.
Uri Gabbay, Shai Fein, Michael J. Drescher   +2 more
wiley   +1 more source

Postural tachycardia syndrome and other forms of orthostatic intolerance in Ehlers-Danlos syndrome

, 2018
Objective: To review the association between orthostatic intolerance syndromes and both joint hypermobility and Ehlers-Danlos syndrome, and to propose reasons for identifying hereditary connective tissue disorders in those with orthostatic intolerance in
Peter C. Rowe, De Wandele, Inge, Maria Roma, Marden, Colleen L, Francomano, Clair A, Inge De Wandele, Roma, Maria, Clair A. Francomano, Rowe, Peter C, Colleen L. Marden, Francomano, Clair, Wandele, Inge De   +11 more
core   +1 more source

Cardiorenal Mortality and Safety Outcomes of GLP‐1 Receptor Agonists in Type 2 Diabetes With BMI Below 27 kg/m2: A Target Trial Emulation

Diabetes, Obesity and Metabolism, Volume 28, Issue 11, Page 10498-10512, November 2026.
ABSTRACT Aims Cardiorenal evidence for glucagon‐like peptide‐1 receptor agonists (GLP‐1 RAs) derives mainly from trials in overweight or obesity; data in adults with Type 2 diabetes (T2D) and body mass index (BMI) below 27 kg/m2 are limited. Materials and Methods We emulated a target trial in the TriNetX US Collaborative Network (index dates 2020 to ...
Shao‐Chia Chen, Yu‐Nan Huang, Pei‐Yun Li, Jo‐Ching Chen, Gideon Meyerowitz‐Katz, Shun‐Fa Yang, Pen‐Hua Su   +6 more
wiley   +1 more source

Midodrine prevents orthostatic intolerance associated with simulated spaceflight

, 2001
Many astronauts after being weightless in space become hypotensive and presyncopal when they assume an upright position. This phenomenon, known as orthostatic intolerance, may interfere with astronaut function during reentry and after spaceflight and ...
Richard J. Cohen, Derin Sherman, Daniel Bloomfield, Siri Rostoft, Karin Toska, Gordon H. Williams, Craig D. Ramsdell, Thomas J. Mullen, Grete H. Sundby, Nikolai Aljuri, Janice Yelle, Natalie Sheynberg, Ming Maa, Ramakrishna Mukkamala   +13 more
core   +1 more source

Heart rate variability analysis in postural orthostatic tachycardia syndrome: a case report

Heart International, 2006
The authors present a case of 36 year old male patient with idiopathic postural orthostatic tachycardia syndrome (POTS) diagnosed during head-up tilt testing.
Raffaele Calabrò, Lucio Santangelo, Cristina Savarese, Carolina Pagano, Ernesto Ammendola, Ilaria De Crescenzo, Vincenzo Russo   +6 more
doaj   +1 more source

Light Chain Monoclonal Gammopathy of Undetermined Significance: Diagnosis, Biology, and Clinical Management

European Journal of Haematology, Volume 117, Issue 5, Page 1159-1167, November 2026.
ABSTRACT Light chain monoclonal gammopathy of undetermined significance (LC‐MGUS) is defined by an abnormal serum free light chain ratio and elevated involved light chain in the absence of a detectable immunoglobulin heavy chain on immunofixation and of end‐organ damage attributable to a plasma cell disorder.
Sigurður Yngvi Kristinsson, Thórir Einarsson Long, Sigrún Thorsteinsdóttir   +2 more
wiley   +1 more source

Time-Frequency Analysis of Cardiovascular and Cardiorespiratory Interactions During Orthostatic Stress by Extended Partial Directed Coherence

Entropy, 2019
In this study, the linear method of extended partial directed coherence (ePDC) was applied to establish the temporal dynamic behavior of cardiovascular and cardiorespiratory interactions during orthostatic stress at a 70° head-up tilt (HUT) test on ...
Sonia Charleston-Villalobos, Sina Reulecke, Andreas Voss, Mahmood R. Azimi-Sadjadi, Ramón González-Camarena, Mercedes J. Gaitán-González, Jesús A. González-Hermosillo, Guadalupe Hernández-Pacheco, Steffen Schulz, Tomás Aljama-Corrales   +9 more
doaj   +1 more source

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

Experimental Physiology, Volume 111, Issue 11, Page 5105-5118, 1 November 2026.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley, Tomoki Watada, Go Ito, Ai Shimada, Toru Sawai, Hideomi Nakata, Shingo Otsuki, Tadayoshi Miyamoto   +7 more
wiley   +1 more source

Sex differences in dynamic cerebral autoregulation responses to resistance and endurance training in humans

Experimental Physiology, Volume 111, Issue 11, Page 5250-5264, 1 November 2026.
Abstract Exercise maintains brain health and reduces the risk of cerebrovascular diseases, such as stroke and dementia. The benefits of different ‘modalities’ of exercise on male and female cerebral autoregulation are unclear. In this study, we compared adaptations in dynamic cerebral autoregulation (dCA) during spontaneous and forced oscillations in ...
Hannah J. Thomas, Channa E. Marsh, Leanne Lester, Louise H. Naylor, Kurt J. Smith, Daniel J. Green   +5 more
wiley   +1 more source

Orthostatic intolerance and the postural tachycardia syndrome : genetic and environment pathophysiologies. Neurolab Autonomic Team

, 2000
Orthostatic intolerance is a common problem for inbound space travelers. There is usually tachycardia on standing but blood pressure may be normal, low or, rarely, elevated.
J. R. Shannon, Diedrich, A., D. Robertson, R. Carson, I. Biaggioni, G. Jacob, Carson, R., A. Diedrich, Furlan, R., Robertson, D., Shannon, J.R., Biaggioni, I., Ertl, A.C., R. Furlan, Jordan, J., A. C. Ertl, Jacob, G., J. Jordan   +17 more
core   +1 more source