Results 51 to 60 of about 408,631 (191)

Sleep-disordered breathing in ischemic cardiomyopathy and hypertensive heart failure patients

The Egyptian Journal of Bronchology, 2017
Aims The aims of this study are to (a) detect the effect of different types of heart diseases [ischemic, cardiomyopathy, hypertensive heart failure (HF)] on the association with sleep disorders, and to (b) identify the relationship between Cheyne–Stokes ...
Suzan Salama, Amany Omar, Yasser Ahmed, Mahmoud Abd El Sabour, Mohamed Ismail Seddik, Doaa Magdy   +5 more
doaj   +1 more source

The dynamics of cyclic‐periodic phenomena during non‐rapid and rapid eye movement sleep

Journal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Sleep is a complex physiological state characterized by distinct stages, each exhibiting unique electroencephalographic patterns and physiological phenomena. Sleep research has unveiled the presence of intricate cyclic‐periodic phenomena during both non‐rapid eye movement and rapid eye movement sleep stages. These phenomena encompass a spectrum
Maria P. Mogavero, Lourdes M. DelRosso, Giuseppe Lanza, Oliviero Bruni, Luigi Ferini Strambi, Raffaele Ferri   +5 more
wiley   +1 more source

Update on the Pathophysiology, Aetiology and Management of Central Sleep Apnoea

Respirology, Volume 31, Issue 9, Page 873-881, September 2026.
ABSTRACT Central sleep apnoea (CSA) of the periodic breathing type occurs during the transition between wakefulness and stage 1 and 2 non‐REM sleep. In adults at sea level, it occurs most commonly due to advanced heart failure (HF) or chronic opioid use and in ~5% of obstructive sleep apnoea patients initiating CPAP.
Sahan D. Chandrasekara, Matthew T. Naughton   +1 more
wiley   +1 more source

Ld-EEG Effective Brain Connectivity in Patients With Cheyne-Stokes Respiration [PDF]

, 2020
The characterization of brain cortical activity in heart-failure patients affected by Cheyne-Stokes Respiration might provide relevant information about the mechanism underlying this pathology.
Giannoni A., Callara A. L., Passino C., Vanello N., Morelli M. S., Emdin M., Hartwig V., Landini L., Vanello N, Passino C, Callara AL, Emdin M, Landini L, Hartwig V, Giannoni A, Morelli MS   +15 more
core   +1 more source

When CO2 sensing fails: Protective effects of sex hormones and potential mechanisms

Journal of Neuroendocrinology, Volume 38, Issue 9, September 2026.
Abstract Breathing movements driven by the brainstem rhythmogenic neural networks rely on chemosensory inputs to produce a motor output that is homeostatically adjusted to the prevailing metabolic demand. The central CO2 chemoreflex is a critical component of respiratory neural circuitry, as defects in these sensors cause hypoventilation syndromes ...
Tara A. Janes, Silvia Cardani, Silvia Pagliardini   +2 more
wiley   +1 more source

A model of the effects of fluid variation due to body position on Cheyne-Stokes respiration [PDF]

, 2013
Cheyne-Stokes respiration is a distinct breathing pattern consisting of periods of hyperpnea followed by apneas, with unknown etiology. One in two patients with congestive heart failure suffer from this condition. Researchers hypothesize that key factors
Wilcox, Marianne
core   +1 more source

Respiratory disturbances and high risk of sudden death in the neonatal connexin‐36 knockout mouse

Physiological Reports, 2021
Neural circuits at the brainstem involved in the central generation of the motor patterns of respiration and cardiorespiratory chemoreflexes organize as cell assemblies connected by chemical and electrical synapses.
Leonel F. Pérez‐Atencio, Ana M. Casarrubios, José M. Ibarz, Juan A. Barios, Cristina Medrano, David Pestaña, David L. Paul, Luis C. Barrio   +7 more
doaj   +1 more source

Amino acid modulation of the carotid body selectively modulates peripheral chemoreceptor respiratory reflex

The Journal of Physiology, Volume 604, Issue 14, Page 6196-6224, 15 July 2026.
Abstract figure legend When the carotid body (CB) detects low oxygen levels (hypoxia), this leads to: (1) depolarization of the chemosensory cells (glomus cells) within the CB – the resulting increase in intracellular Ca2+ stimulates the exocytotic co‐release of vesicles containing ATP and glutamate; (2) synaptic ATP acts on postsynaptic petrosal ...
Olivia M. S. Gold, Audrys G. Pauza, Igor S. A. Felippe, Xin Shen, Julian F. R. Paton   +4 more
wiley   +1 more source

Sleep Apnea and Paroxysmal Atrial Fibrillation: Diurnal Patterning of Autonomic Dysfunction and Influence of CPAP Therapy

Journal of Arrhythmia, Volume 42, Issue 3, June 2026.
Autonomic dysfunction in sleep apnea shows diurnal variation, with stronger associations between SDB severity and HRV during wakefulness than sleep. CPAP therapy induces complex, state‐dependent changes in HRV, suggesting that daytime autonomic alterations may better reflect sustained cardiovascular risk in patients with paroxysmal atrial fibrillation.
Sepideh Khazaie, Lu Wang, Farhad Kaffashi, Ahana Sandhu, Mina K. Chung, Catherine M. Heinzinger, David R. Van Wagoner, Kenneth A. Loparo, Harneet K. Walia, James F. Bena, Reena Mehra   +10 more
wiley   +1 more source

Interrelated atrial fibrillation and leaks triggering and maintaining central sleep apnoea and periodic breathing in a CPAP‐treated patient

Respirology Case Reports, 2020
We report the case of a 71‐year‐old obese continuous positive airway pressure (CPAP)‐treated man who developed an acute cardiac failure (ACF) triggered by atrial fibrillation.
Arnaud Prigent, Anne‐Laure Serandour, Régis Luraine, Jean Sébastien Poineuf, Christian Bosseau, Jean‐Louis Pépin   +5 more
doaj   +1 more source