Results 111 to 120 of about 775,260 (336)

Effect of the maternal sleep disturbances and obstructive sleep apnea on feto‐placental Doppler: A systematic review

Journal of Sleep Research, EarlyView.
Literature evidenced an association of maternal obstructive sleep apnea (OSA) with significant obstetric complications. Moreover, the OSA and its effect on feto‐placental circulation had not been extensively examined. Our objective is to explore the possible impact of OSA on the feto‐placental indices evaluated through the Doppler study.
Marco La Verde, Maria Maddalena Marrapodi, Marica Palma, Davide Pisani, Diana Russo, Vincenzo Ronsivalle, Marco Cicciù, Giuseppe Minervini   +7 more
wiley   +1 more source

Spinal cord autoregulation using near-infrared spectroscopy under normal, hypovolemic, and post-fluid resuscitation conditions in a swine model: a comparison with cerebral autoregulation

Journal of Intensive Care, 2020
Background Few studies have investigated spinal cord autoregulation using near-infrared spectroscopy (NIRS). Here, we assessed spinal cord autoregulation under normal, hypovolemic, and post-fluid resuscitation conditions compared with cerebral ...
Tadayoshi Kurita, Shingo Kawashima, Koji Morita, Yoshiki Nakajima   +3 more
doaj   +1 more source

Steady‐state cerebral blood flow and dynamic cerebral autoregulation during neck flexion and extension in seated healthy young adults

Physiological Reports, 2023
Neck flexion and extension show differences in various physiological factors, such as sympathetic nerve activity and intracranial pressure (ICP). We hypothesized that differences would exist in steady‐state cerebral blood flow and dynamic cerebral ...
Tomokazu Kato, Toru Konishi, Takuya Kurazumi, Yojiro Ogawa, Ken‐ichi Iwasaki   +4 more
doaj   +1 more source

Dynamic Cerebral Autoregulation and Monitoring Cerebral Perfusion [PDF]

Hypertension, 2010
Cerebral autoregulation (CA) describes the capability of the brain to maintain its flow as relatively stable over a wide rage of mean arterial pressures (MAPs), for example, from 60 to 150 mm Hg. Because the brain is encompassed in the skull, CA is vital for preventing cerebral edema and hemorrhage, as illustrated in some patients experiencing acute ...
Secher, Niels H, van Lieshout, Johannes J   +1 more
openaire   +3 more sources

Multifocal Infarctions as Manifestation of Cerebral Autosomal Dominant Arteriopathy With Subcortical Infarcts and Leukoencephalopathy

Neurology and Clinical Neuroscience, EarlyView.
ABSTRACT Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a rare small vessel disease caused by a pathogenic variant in the NOTCH3 gene. We present a unique case of acute multifocal infarcts in a 51‐year‐old female following a syncopal event, prompting investigations and a first diagnosis of ...
Spiro Menounos, Adarsh George, Ke Sun, Dandan Zhao, Lydia Ting, Daniel Guilfoyle, Katie Yin   +6 more
wiley   +1 more source

Bayesian approach to uncertainty quantification for cerebral autoregulation index [PDF]

arXiv, 2018
Cerebral autoregulation refers to the brain's ability to maintain cerebral blood flow at an approximately constant level, despite changes in arterial blood pressure. The performance of this mechanism is often assessed using a ten-scale index called the ARI (autoregulation index).
arxiv  

The cerebrovascular effects of adrenaline, noradrenaline and dopamine infusions under propofol and isoflurane anaesthesia in sheep [PDF]

, 2002
Publisher's copy made available with the permission of the publisher © Australian Society of AnaesthetistsInfusions of catecholamines are frequently administered to patients receiving propofol or isoflurane anaesthesia.
Fortin D., Motulsky H., Runciman W.B., Stephan H., Teasdale G., Tuor U.I.   +5 more
core   +2 more sources

Cerebral autoregulation in cardiopulmonary bypass surgery: a systematic review.

Interactive Cardiovascular and Thoracic Surgery, 2018
Cardiopulmonary bypass surgery is associated with a high incidence of neurological complications, including stroke, delirium and cognitive impairment. The development of strategies to reduce the incidence of such neurological events has been hampered by ...
J. Caldas, V. Haunton, R. Panerai, L. Hajjar, T. Robinson   +4 more
semanticscholar   +1 more source

Increased blood pressure variability upon standing up improves reproducibility of cerebral autoregulation indices [PDF]

arXiv, 2017
Dynamic cerebral autoregulation, that is the transient response of cerebral blood flow to changes in arterial blood pressure, is currently assessed using a variety of different time series methods and data collection protocols. In the continuing absence of a gold standard for the study of cerebral autoregulation it is unclear to what extent does the ...
arxiv  

Kinetic Model of Translational Autoregulation [PDF]

, 2018
We investigate dynamics of a kinetic model of inhibitory autoregulation as exemplified when a protein inhibits its own production by interfering with its messenger RNA, known in molecular biology as translational autoregulation. We first show how linear models without feedback set the stage with a nonequilibrium steady state that constitutes the target
arxiv   +1 more source