Results 51 to 60 of about 38,999 (275)

QQ‐Based Oxygen Extraction Fraction (OEF) Mapping in Mouse Brain: Initial Experience

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Oxygen extraction fraction (OEF) is a vital biomarker of cerebral oxygen metabolism and tissue viability. A novel OEF mapping method, QQ, which combines quantitative susceptibility mapping (QSM) and quantitative blood oxygen level‐dependent (qBOLD) (QSM + qBOLD = QQ), has demonstrated promise in detecting disease‐related OEF ...
Quinn Boyer   +4 more
wiley   +1 more source

Association between prehospital arterial hypercapnia and mortality in acute heart failure: a retrospective cohort study

open access: yesBMC Emergency Medicine, 2021
Background Acute Heart Failure (AHF) is a potentially lethal pathology and is often encountered in the prehospital setting. Although an association between prehospital arterial hypercapnia in AHF patients and admission in high-dependency and intensive ...
Mathias Fabre   +6 more
doaj   +1 more source

Changes in body temperature after Hypercapnia.

open access: yes, 2016
Time-course of body temperature (Tb, ΔC, A) changes during 30 min of hypercapnia (7% CO2) in Wistar (blue dots) and WAR groups (red dots). Peak changes in baseline body temperature (ΔTb, ΔC, B) 30 after the beginning of hypercapnia (7% CO2) in Wistar ...
Érica Maria Granjeiro (600712)   +5 more
core   +1 more source

Emergencies in Amyotrophic Lateral Sclerosis

open access: yesMuscle &Nerve, EarlyView.
ABSTRACT Emergencies are frequent in people living with amyotrophic lateral sclerosis (pALS), especially as the disease progresses, and can necessitate urgent evaluation and intervention. Progressive weakness in ALS inevitably increases fall risk, making discussion of fall prevention strategies integral to caring for pALS.
S. Pinar Uysal   +9 more
wiley   +1 more source

Feasibility of Longitudinal Home Monitoring of Nocturnal Transcutaneous CO2 and Relationship to Standard Respiratory Measures in Patients With ALS: A Pilot Cohort Study

open access: yesMuscle &Nerve, EarlyView.
ABSTRACT Introduction/Aims Amyotrophic lateral sclerosis (ALS) results in respiratory muscle weakness causing hypoventilation, retention of carbon dioxide (CO2), and chronic hypercapnic respiratory failure. In this pilot study, we performed a 12‐month assessment of daytime and home nocturnal CO2 to track respiratory progression, determine relationships
Andrew Geronimo   +4 more
wiley   +1 more source

Effects of intraoperative hypercapnia on postoperative brain functional network connectivity and cognitive function in adult patients undergoing Clipping Intracranial Aneurysm

open access: yesBMC Neurology
Background Cerebral vasospasm and delayed cerebral ischemia were significant complications in patients undergoing Clipping Intracranial Aneurysm surgery.
Fengmei Jiao, Guiting Li, Wen Bian
doaj   +1 more source

Development and Relevance of Hypercapnia in COPD

open access: yesCanadian Respiratory Journal, 2021
Background. Identification of patients who may become hypercapnic, or develop acidotic hypercapnic respiratory failure (AHRF), is important in chronic obstructive pulmonary disease (COPD) to avoid hospital admission and select patients for use of home ...
Chirag Dave   +5 more
doaj   +1 more source

Reduction of cerebrovascular reactivity during hypercapnia

open access: yes, 1982
The effects on cerebral blood flow of alpha- or beta-adrenergic receptor stimulation of cerebral vessels were examined in 13 unanesthetized goats before and during hypercapnia produced by inhalation of 10% CO2 in air.
B. Gomez   +4 more
core   +1 more source

Chronic high‐altitude exposure and intracerebral hemorrhage: A novel perspective from the vascular‐immune‐neuronal network

open access: yesNeuroprotection, EarlyView.
Long‐term chronic high‐altitude hypobaric hypoxia increases susceptibility to ICH, particularly among migrant populations lacking EPAS1/SENP1 adaptive genetic variants relative to high‐altitude indigenous residents. Persistent hypoxia initiates blood–brain barrier (BBB) breakdown, aberrant glial and immune activation, and progressive neuronal injury ...
Rongsu Huang   +6 more
wiley   +1 more source

Glutamate receptor plasticity in brainstem respiratory nuclei following chronic hypercapnia in goats

open access: yesPhysiological Reports, 2019
Patients that retain CO2 in respiratory diseases such as chronic obstructive pulmonary disease (COPD) have worse prognoses and higher mortality rates than those with equal impairment of lung function without hypercapnia.
Nicholas J. Burgraff   +5 more
doaj   +1 more source

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