The association of vertebrobasilar calcification with etiological subtypes, stroke recurrence and outcome in acute brainstem ischemic stroke

Arterial calcification (AC), a frequent finding on imaging studies, has been reported as a risk factor for ischemic stroke. However few studies have explored the association of AC with etiological subtypes and prognostic implications. The purpose of this study was to investigate the association of AC with demograhics, risk factors and etiological subtypes and to determine whether it predicts stroke recurrence and functional outcome in patients with acute brainstem ischemic stroke. We analyzed our database consisting of patients who were diagnosed as acute brainstem ischemic stroke admitted within 24hours of onset. Etiological classification of stroke was made based on The Trial of ORG in Acute Stroke Treatment (TOAST) Classification. AC in vertebral and basilar arteries were assessed from baseline brain CT. AC degree was categorized according to calcification along the circumference in the densest calcified segment of each vessel (0 point if no calcification in any of the CT slices, 1 point if calcification <50% of circumference and 2 points if calcification ≥50% of circumference). Three AC categories were defined according to the total AC score as follows: no AC (0 point), mild AC (1–2 points), severe AC (≥3 points). Recurrent stroke within the first 3 months of follow up and modified Rankin Score (mRS) at 3-month were reviewed. 42% of 188 patients had AC in at least of the vertebrobasilar arteries. Severe AC was related to age and the presence of diabetes mellitus and coronary artery disease. The prevalence of AC was significantly higher in large artery atherosclerosis subtype. The presence of AC was marginally associated with recurrent stroke but did not find to be related with functional outcome. Further studies with larger sample size are warranted to explore this topic

Assessment of platelet indices in patients with neurodegenerative diseases: Mean platelet volume was increased in patients with Parkinson's disease

Platelets induce chronic inflammation which is a key step in atherosclerosis and may be involved in the progression of neurodegenerative diseases (NDD). We aimed to measure the mean platelet volume (MPV) and platelet count (PLC) in NDD patients. The present study was designed to investigate the platelet function by measuring MPV and PLC in NDD. A total of 182 outpatients with Alzheimer's (AD) or Parkinson's diseases (PD) were included. The control group consisted of 104 healthy subjects. Platelet count was similar between groups. MPV values of PD patients were higher than those of AD patients and controls (P<0.001). MPV correlated negatively with Heohn and Yahr scale (HYS) score (P<0.001). Increased MPV in patients with PD may point to a platelet dysfunction. High-grade inflammation presents with low levels of MPV as seen in PD patients with high HYS scores. © 2013 Abdulkadir Koçer et al

Epilepsy in Elderly Patients

Objectives:The incidence of new-onset epilepsy is high among the elderly. This study presents the demographic characteristics, etiological factors, seizure types and response rates to treatment in a group of patients aged 65 years or over with delayed-onset epilepsy.Methods:The study comprised a retrospective evaluation of the records of 43 patients aged 65 or older with a diagnosis of delayed-onset epilepsy who were admitted to the epilepsy clinic in the Neurology Department of Bezmialem University Faculty of Medicine.Results:Patient mean age was 74.9 (66–92 years). Underlying disease was found to be cerebrovascular disease in 37.2%. Based on seizure type, 67.4% (n=29) patients had partial-onset and 32.6% (n=14) had generalized seizure. Treatment protocol in 93% (n=40) of the patients was monotherapy antiepileptic drugs, the most commonly used being levetiracetam (53.5%). Assessment of drug side effects showed no complaint in 86% (n=37) of the patients. During the three months prior to the study, 95.3% of the patients had been seizure free.Conclusion:The study found cerebrovascular disease to be the most common etiological factor in delayed-onset epilepsy. Partial-onset secondary generalized seizure was the most common seizure type. All patients responded well to monotherapy and have a good prognosis