Background: The objective of this study was to evaluate the diagnostic value of the head-up-tilt (HUT) test for detecting cerebral hemodynamic insufficiency in patients with major cerebral artery occlusion disease because such patients may benefit from extracranial - intracranial bypass surgery.
Methods And Results: In 13 cases of transient ischemic attacks in patients with carotid or middle cerebral artery occlusive disease, the HUT test was used to determine whether or not the symptoms appear during induced hypotension before investigating cerebral hemodynamics with positron emission tomography. Three of the 13 patients showed focal symptoms such as hemiparesis and limb shaking during the HUT test. In all 3 patients, the oxygen extraction fraction (OEF) increased beyond 53.3% (ie, misery perfusion), whereas only 2 of the other 10 patients without focal symptoms showed an increase in OEF during HUT.
Conclusions: The HUT test was highly useful for screening patients with cerebral hemodynamic insufficiency in carotid occlusive disease.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1253/circj.69.971 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Background: Cluster-randomized controlled trials (cluster-RCTs) have demonstrated variation in the epidemiological efficacy of different next-generation insecticide-treated net (ITN) types, with some providing shorter-lived impact than others. Further studies are needed to assess changes in the insecticidal durability of these ITNs over time to complement cluster-RCT results.
Methods: A series of experimental hut trials were performed to evaluate the bioefficacy of new and field-aged next-generation ITNs (PermaNet 3.
Age-Related Differences in Cardiovascular and Cerebrovascular Responses During the Head-Up Tilt Test: An Exploratory Study Using Continuous Biosignal Data.
Sensors (Basel)
November 2024
Department of Convergence of Healthcare and Medicine, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea.
The head-up tilt (HUT) test assesses both cardiovascular autonomic regulation and cerebral autoregulation. This exploratory study examined age-related changes in cardiovascular and cerebrovascular responses during the HUT test in three healthy cohorts (young, middle-aged, and elderly). We recruited 2342 neurologist-diagnosed 'normal' individuals from 18 June 2014 to 25 February 2022.
View Article and Find Full Text PDFDoes primary posterior tracheopexy prevent collapse of the trachea in newborns with oesophageal atresia and tracheomalacia? A study protocol for an international, multicentre randomised controlled trial (PORTRAIT trial).
BMJ Open
December 2024
Congenital Oesophageal and Airway Team Utrecht, Departments of Paediatric Surgery and Otorhinolaryngology and Head and Neck Surgery, Wilhelmina Children's Hospital University Medical Center, Utrecht, The Netherlands.
Introduction: Tracheomalacia (TM) often occurs in children with oesophageal atresia (OA), leading to recurrent respiratory symptoms and in severe cases to blue spells or ultimately respiratory arrest. In some patients, a secondary posterior tracheopexy may then be indicated. This secondary surgery, as well as respiratory morbidity, may be prevented by performing a primary posterior tracheopexy (PPT) concurrent with primary OA correction.
View Article and Find Full Text PDFLongitudinal Patterns and Predictors of Cognitive Impairment Classification Stability.
Arch Clin Neuropsychol
November 2024
Department of Psychology, University of Victoria, Cornett Building A236, 3800 Finnerty Road (Ring Rd), Victoria, BC, V8P 5C2, Canada.
Objective: Classifications such as Cognitive Impairment, No Dementia (CIND) are thought to represent the transitory, pre-clinical phase of dementia. However, increasing research demonstrates that CIND represents a nonlinear, unstable entity that does not always lead to imminent dementia. The present study utilizes a longitudinal repeated measures design to gain a thorough understanding of CIND classification stability patterns and identify predictors of future stability.
View Article and Find Full Text PDFComparative Analysis of Pretreatment Methods for Fruit Waste Valorization in Cultivation: Impacts on Biomass, β-1,3-Glucan Production, and Photosynthetic Efficiency.
Foods
October 2024
School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China.
This study explored the sustainable valorization of fruit waste extracts from sugarcane bagasse (SB), banana peel (BP), and watermelon rind (WR) for Euglena gracilis biomass and β-1,3-glucan production. The extracts were prepared using water extraction (WE), high-temperature and pressure treatment (HTP), and dilute sulfuric acid treatment (DSA). The DSA-treated extracts consistently yielded the best results.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!