To investigatethe relationship between the apparent diffusion coefficients (ADC) value obtained from magnetic resonance imaging (MRI) and histopathologic grade of meningiomas.
Observational study.
Department of Radiology, Istanbul Medeniyet University, School of Medicine, Istanbul, Turkey between January 2015 and June 2019.
Data of 45 patients with meningiomas, who underwent surgery at the University Hospital, were retrospectively reviewed; 28 patients were enrolled in the study. The pathology preparations of the patients were re-evaluated according to the World Health Organisation (WHO) 2016 classification updated by a neuropathologist. ADC values were measured in a standard region of interest range from the three consecutive sections where the mass had the largest width and from the opposite white matter.
Fourteen patients (50%) were diagnosed with WHO grade I tumor, 11 with grade II (39.3%), and three with grade III (10.7%). The ADCmin value was found statistically significant for the differentiation of tumor grades (p = 0.018). The cut-off point of the ADCmin value was 0.634x10-3mm2s for the differential diagnosis of grade I and grade II/III meningiomas. The sensitivity of the cut-off value was found as 86% and its specificity as 57%. The patients with increased cellularity and Ki67 proliferation index had statistically significantly lower ADCmin values (p = 0.025).
The data of this study show a significant difference in the ADCmin values on MRI between low- and high-grade meningiomas. A negative correlation was found between histopathologic grade and ADCmin. Key Words Meningioma, Apparent diffusion coefficient, Magnetic resonance imaging, Histopathological grade, Quantitative.
The data of this study show a significant difference in the ADCmin values on MRI between low- and high-grade meningiomas. A negative correlation was found between histopathologic grade and ADCmin. Key Words Meningioma, Apparent diffusion coefficient, Magnetic resonance imaging, Histopathological grade, Quantitative.
To compare radial vasomotor functions at three different access sites namely right, left main radial artery, and left distal radial (LDR) artery.
Observational study.
Department of Cardiology, EGE University, Turkey, from September 2017 to February 2018.
Forty-one patients scheduled for transradial elective coronary angiography and intervention were consecutively enrolled. Access site decision was left free to operators being blind of the study. https://www.selleckchem.com/PARP.html Main radial vasomotor function measured through flow mediated vasodilation test was compared between other radial access sites on admission, 1 day and 2 months post-catheterisation.
Five patients were intervened through the left main radial, whereas the LDR and the right main radial access were used in 17 and 19 patients respectively. In contrast to other radial access sites, LDR approach showed significantly less influenced vasomotor functions the day after the procedure. This feature continued to be preserved for two months of follow-up. Conclusion Left distal radial branch in the anatomic snuffbox is a reliable access in terms of vasomotor function preservation compared to conventional left and right radial artery accesses. Key Words Transradial access, Flow mediated vasodilatation, Endothelial function.6re6445.
Five patients were intervened through the left main radial, whereas the LDR and the right main radial access were used in 17 and 19 patients respectively. In contrast to other radial access sites, LDR approach showed significantly less influenced vasomotor functions the day after the procedure. This feature continued to be preserved for two months of follow-up. Conclusion Left distal radial branch in the anatomic snuffbox is a reliable access in terms of vasomotor function preservation compared to conventional left and right radial artery accesses. Key Words Transradial access, Flow mediated vasodilatation, Endothelial function.6re6445.Null.
Cognitive impairments, which contribute to the profound functional deficits observed in psychotic disorders, have found to be associated with abnormalities in trial-level cognitive control. However, neural tasks operate within the context of sustained cognitive states, which can be assessed with 'background connectivity' following the removal of task effects. To date, little is known about the integrity of brain processes supporting the maintenance of a cognitive state in individuals with psychotic disorders. Thus, here we examine background connectivity during executive processing in a cohort of participants with first-episode psychosis (FEP).
The following fMRI study examined background connectivity of the dorsolateral prefrontal cortex (DLPFC), during working memory engagement in a group of 43 patients with FEP, relative to 35 healthy controls (HC). Findings were also examined in relation to measures of executive function.
The FEP group relative to HC showed significantly lower background DLPFC connectivity with bilateral superior parietal lobule (SPL) and left inferior parietal lobule. Background connectivity between DLPFC and SPL was also positively associated with overall cognition across all subjects and in our FEP group. In comparison, resting-state frontoparietal connectivity did not differ between groups and was not significantly associated with overall cognition, suggesting that psychosis-related alterations in executive networks only emerged during states of goal-oriented behavior.
These results provide novel evidence indicating while frontoparietal connectivity at rest appears intact in psychosis, when engaged during a cognitive state, it is impaired possibly undermining cognitive control capacities in FEP.
These results provide novel evidence indicating while frontoparietal connectivity at rest appears intact in psychosis, when engaged during a cognitive state, it is impaired possibly undermining cognitive control capacities in FEP.
Adverse outcomes following Clostridioides difficile infection (CDI) are not often reported for long-term care facility (LTCF) residents. We focused on the adverse outcomes due to CDI identified in Alberta LTCFs.
All positive Clostridioides difficile stool specimens identified by laboratory-identified (LabID) event surveillance in Alberta from 2011 to 2018, along with Alberta Continuing Care Information System, were used to define CDI in Alberta LTCFs. CDI cases were classified as long-term care onset, hospital onset, and community onset. Laboratory records were linked to provincial databases to analyze acute-care admissions and mortality within 30-day post CDI. Age, sex, case classification, episode, and operator type, were investigated using logistic regression.
Overall, 902 CDI cases were identified in 762 LTCF residents. Of all CDI events, 860 (95.3%) were long-term care onset, 38 (4.2%) were hospital onset, and 4 (0.4%) were community onset. The CDI rate was 2.0 of 100,000 resident days. In total, 157 residents (20.