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  1. The status of diabetes control in Asia--a cross-sectional survey of 24 317 patients with diabetes mellitus in 1998
    Chuang LM, Tsai ST, Huang BY, Tai TY, Diabcare-Asia 1998 Study Group
    Diabet Med, 2002 Dec;19(12):978-85.
    PMID: 12647837 DOI: 10.1046/j.1464-5491.2002.00833.x
    AIMS: To establish the status of diabetes control in Asia, the Diabcare-Asia 198 study collected data from 230 diabetes centres in Bangladesh, People's Republic of China, India, Indonesia, Malaysia, Philippines, Singapore, South Korea, Sri Lanka, Taiwan, Thailand and Vietnam from March to December 1998.

    METHODS: Data were obtained either by patient interview during the enrolment visit or by reviewing medical records for the most recent laboratory assessment and clinical examinations. Blood samples were also collected during patients'. visits for central assessments of HbA1c (normal range 4.7-6.4%).

    RESULTS: The mean of centrally measured HbA1c was 8.6 +/- 2.0% for 18 211 patients (82% of the analysis population). Of the patients with central HbA1c measurements, the majority (55%) had values exceeding 8%, indicative of poor glycaemic control. The prevalence of retinopathy, microalbuminuria and neuropathy was also higher in the group of patients with higher HbA1c. Based on the findings from central HbA1c measurements and reported local HbA1c assessments, it also appears that more patients with poor glycaemic control did not have access to glycated haemoglobin measurements. Mean HbA1c of thediabetic populations in Bangladesh, Indonesia, Korea, Malaysia and Taiwan were significantly lower (all P = 0.0001, except P = 0.0007 for Malaysia), while that of China, India, Philippines and Vietnam was significantly higher (all P = 0.0001) than the grand mean.

    CONCLUSIONS: In our study population of the Asian diabetes patients treated at diabetes centres, more than half were not well controlled. The prevalence of diabetic microvascular complications was higher in the group of patients with higher HbA1c. Further therapeutic actions to improve glycaemic control are required to prevent chronic diabetic complications.
  2. Fulltext Rationale and design for the detection and neurological impact of cerebrovascular events in non-cardiac surgery patients cohort evaluation (NeuroVISION) study: a prospective international cohort study
    Mrkobrada M, Chan MTV, Cowan D, Spence J, Campbell D, Wang CY, et al.
    BMJ Open, 2018 07 06;8(7):e021521.
    PMID: 29982215 DOI: 10.1136/bmjopen-2018-021521
    OBJECTIVES: Covert stroke after non-cardiac surgery may have substantial impact on duration and quality of life. In non-surgical patients, covert stroke is more common than overt stroke and is associated with an increased risk of cognitive decline and dementia. Little is known about covert stroke after non-cardiac surgery.NeuroVISION is a multicentre, international, prospective cohort study that will characterise the association between perioperative acute covert stroke and postoperative cognitive function.

    SETTING AND PARTICIPANTS: We are recruiting study participants from 12 tertiary care hospitals in 10 countries on 5 continents.

    PARTICIPANTS: We are enrolling patients ≥65 years of age, requiring hospital admission after non-cardiac surgery, who have an anticipated length of hospital stay of at least 2 days after elective non-cardiac surgery that occurs under general or neuraxial anaesthesia.

    PRIMARY AND SECONDARY OUTCOME MEASURES: Patients are recruited before elective non-cardiac surgery, and their cognitive function is measured using the Montreal Cognitive Assessment (MoCA) instrument. After surgery, a brain MRI study is performed between postoperative days 2 and 9 to determine the presence of acute brain infarction. One year after surgery, the MoCA is used to assess postoperative cognitive function. Physicians and patients are blinded to the MRI study results until after the last patient follow-up visit to reduce outcome ascertainment bias.We will undertake a multivariable logistic regression analysis in which the dependent variable is the change in cognitive function 1 year after surgery, and the independent variables are acute perioperative covert stroke as well as other clinical variables that are associated with cognitive dysfunction.

    CONCLUSIONS: The NeuroVISION study will characterise the epidemiology of covert stroke and its clinical consequences. This will be the largest and the most comprehensive study of perioperative stroke after non-cardiac surgery.

    TRIAL REGISTRATION NUMBER: NCT01980511; Pre-results.

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