Background: Post-stroke dementia is defined as any dementia occurring after stroke, and includes vascular, degenerative and mixed dementia. The aim of this study was to assess the incidence of dementia and mild cognitive impairment (MCI) one year after stroke in a population free from pre-stroke cognitive decline, and to investigate the different aetiological subtypes of post-stroke dementia and MCI, using a novel method of subclassification in order to separate vascular causes of MCI or dementia from a neurodegenerative disease. Methods: All patients with a first-ever stroke and TIA admitted to the stroke unit of Asker and Bærum Hospital were invited. After 12 months, dementia and MCI were diagnosed. Sub-classification was made using MRI findings, the results of biomarkers in cerebrospinal fluid and the patients’ clinical cognitive profile. Results: 36 (19.6%) patients developed dementia during the first year after stroke and 69 (37.5%) developed MCI. Fourteen (13.3%) were diagnosed as suffering from degenerative cognitive disease, 34 (32.4%) from vascular cognitive disease, and 57 (54.3%) from mixed disease. Conclusion: Fifty-seven percent suffered from cognitive impairment one year after stroke and only one third from isolated vascular cognitive disease. Post-stroke cognitive impairment is complex with a high coexistence of vascular and degenerative changes.
Background/Aim: Post-stroke cognitive impairment and dementia may be caused by pure vascular, pure degenerative or mixed disease. The relation between post-stroke cognitive impairment and the combination of vascular pathology and degenerative changes is less evaluated. We aimed to evaluate the associations between white matter lesions (WMLs) and patient performance 1 year after stroke on tests of executive functioning, memory and visuospatial function, adjusted for the effects of lifestyle and disease-related factors, including medial temporal lobe atrophy (MTLA). Methods: Patients with a first-ever stroke or transient ischemic attack were invited to participate in the study. The associations between the cognitive test performances and WMLs were studied using linear regression [Trail Making Test B (TMT B) and 10-word test] and logistic regression (Clock Drawing Test). Results: In total, 199 patients completed the follow-up. The TMT B (p = 0.029) and the 10-word test (p = 0.014) were significantly associated with WMLs; however, the Clock Drawing Test (p = 0.19) was not. The TMT B (p = 0.018) and the 10-word test (p ≤ 0.001) were both significantly associated with MTLA. Conclusion: Impaired executive functioning and memory are significantly associated with WMLs and MTLA. The mechanisms explaining post-stroke cognitive impairment are multifactorial, including different types of vascular pathology and coexisting vascular and degenerative changes.
Visual assessment of MTA repeated over time has a high grade of reproducibility when performed by an experienced investigator. The reproducibility drops when assessment is rarely performed. Inter-rater reliability is low when two investigators not working together are compared.
Objective-To investigate how departmental practice and women's characteristics are related to low patient satisfaction with mammography. Design-Survey of patients by means of self administered questionnaires before and after mammography. Patients-488 women (89% of those invited), aged 23-86 years, at six departments. Main outcome measures-Low level of satisfaction measured on psychometric scales of physical pain, psychological distress, staV punctuality and technical skills, information provided, and physical surroundings. Results-Satisfaction varied by department on the scales for pain, punctuality, information, and surroundings. After adjustment for women's characteristics an attributable risk of negative outcome by department was identified on the scales for pain, distress, punctuality, information, and surroundings. Adjusted odds ratio (ORs) ranged from 0.3 (95% confidence interval (95% CI) 1.2 to 6.0) on the pain scale, to 6.0 (2.9 to 12.3) on the punctuality scale. After adjustment for confounding variables, higher risk of dissatisfaction was associated with age <50, nervousness about mammography, expected pain, lack of knowledge about mammography, and distrust in mammography (adjusted OR (95% CI) ranged from 1.6 (1.0 to 2.7) to 3.7 (2.0 to 7.3)). Conclusion-Departmental practices differed for breast compression, information, punctuality, and facilities and were associated with a low level of satisfaction irrespective of patient characteristics. Women's lack of knowledge about mammography and distrust in the procedure were confirmed as risk factors for dissatisfaction. All these factors might be helped by training the staV, improving facilities, and informing the women.
A total of 190 patients, referred by general practitioners for a double-contrast barium enema, were subsequently examined with colonoscopy. With colonoscopy and histology as the reference standard, sensitivity, specificity, positive and negative predictive values, and accuracy for the radiological detection of cancer and polyps were calculated. No cancer was overlooked by the radiological examination, but there were four false positives. The overall sensitivity for polyps was 70%, increasing to 81% for polyps > or = 10 mm. The predictive value was 93-97% for the exclusion of polyps. The caecum was reached in 187 patients by double-contrast barium enema (98%) and in 164 patients (86%) by colonoscopy. Lesions in four of 12 patients who had radiological changes were undetected at the first colonoscopy, but a repeat examination showed polyps > or = 10 mm in size. Although colonoscopy is a more sensitive technique for the detection of small mucosal lesions, the general practitioners may, in the vast majority of patients, rely on a negative result for polyps and cancer obtained by the double-contrast barium enema. The latter is linked with a number of false-positive cases, while colonoscopy is associated with technical difficulties; both techniques may lead to repeated examinations, regardless of which was the first choice.
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