1.Cardiovascular Risk Calculators: Back to Basics
The Singapore Family Physician 2017;43(1):10-14
Cardiovascular disease (CVD) is a leading global cause of mortality and morbidity. Risk assessment of asymptomatic individuals plays an important role in the primary prevention of CVD and its complications by guiding management decisions, in particular the decision to use statins or antiplatelet agents, as well as more controversially, the target level for risk factors such as hypertension and cholesterol. Timely and regular risk assessments also identify the development of physiological disturbances such as pre-hypertension, pre-diabetes, dyslipidaemias, clinical obesity and metabolic syndrome, which can be asymptomatic in the early stages, but may lead to increased risk for many ageing-related degenerative diseases, including CVD. These physiological mal-adaptations are remarkably responsive to behavioural lifestyle interventions at an early stage, and may be stabilised or even reversed without medications. This article describes the why and how of assessing CVD risk and a suggested framework for management, including the appropriate use of behavioural lifestyle interventions as first-line treatment. It also describes the various risk scores available, their differences and limitations and how to best use them in clinical practice. More research is required regarding the use of non-traditional and emerging markers of CVD risk such as carotid intima-media thickness, coronary artery calcium scoring, hsCRP, ankle brachial index, Apo-B, albuminuria, and how they may be incorporated into existing risk models.
2.Trends in mortality from acute myocardial infarction in the coronary care unit.
Peter TING ; Terrance S J CHUA ; Aaron WONG ; Ling Ling SIM ; Virlynn W D TAN ; Tian Hai KOH
Annals of the Academy of Medicine, Singapore 2007;36(12):974-979
INTRODUCTIONThe treatment and outcome of acute myocardial infarction (AMI) has evolved greatly over the past few decades. We compared the mortality and complication rates of patients with AMI admitted to the Coronary Care Unit (CCU) in 2002 to previously reported data.
MATERIALS AND METHODSAll data for AMI patients admitted to National Heart Centre CCU in 2002 were collected through the Singapore Cardiac Data Bank, including demographics, in hospital complications and mortality. These were compared to previous reports from the same institution in 1988, 1975 and 1967.
RESULTSA total of 516 cases with AMI were identified. A higher proportion of patients were aged >or=70 years in 2002 (31.8%) compared to 1988 (25%), 1975 (11%) and 1967 (5.6%). Acute percutaneous transluminal coronary angioplasty (PTCA) was performed in 250 of 516 (48%) patients in 2002. The overall in-patient and age-standardised mortality was 14.7% and 10% respectively, compared to 20.6% and 17% respectively in 1988 (P = 0.06). For the 250 patients who underwent acute PTCA, overall mortality was 5.2% compared to 24% in those who did not (P <0.001). Common in-hospital complications included heart failure (38%), non-sustained ventricular tachycardia (8%), atrial fibrillation (8%) and complete heart block (6%). Age, heart failure, bundle branch block and sustained ventricular tachycardia were associated with higher mortality by univariate analysis. On multivariate analysis, older age, heart failure and the absence of percutaneous intervention were independently associated with higher mortality.
CONCLUSIONIn-hospital mortality for AMI patients admitted to the CCU declined from 1988 to 2002 despite a higher proportion of elderly patients. The introduction of new therapies including drugs and percutaneous intervention may have contributed to this decline.
Acute Disease ; Age Factors ; Aged ; Angioplasty, Balloon, Coronary ; Coronary Care Units ; Critical Illness ; Female ; Humans ; Incidence ; Intensive Care Units ; Male ; Middle Aged ; Mortality ; trends ; Myocardial Infarction ; complications ; mortality ; therapy ; Prognosis ; Retrospective Studies ; Treatment Outcome
3.A New Comprehensive Short-form Health Literacy Survey Tool for Patients in General.
Tuyen Van DUONG ; Peter WuShou CHANG ; Shih Hsien YANG ; Ming Chu CHEN ; Wei Ting CHAO ; Tara CHEN ; Priscilla CHIAO ; Hsiao Ling HUANG
Asian Nursing Research 2017;11(1):30-35
PURPOSE: To validate a conceptual short-form health literacy 12 items questionnaire (HL-SF12) in patient populations. METHODS: A cross-sectional study was conducted via a convenient sample of 403 patients from three departments of a community general hospital in the northern Taiwan. Patients' health literacy was assessed with a validated HL-SF12, derived from the full scale, the European Health Literacy Survey Questionnaire (HLS-EU-Q), as well as a single-item from Chew's Set of Brief Health Literacy Question. A reference population in Northern Taiwan (n = 928) via the HLS-EU-Q in 2013–2014 was used as a reference to compare the health literacy between that of the general public and the patients. Data was analyzed by confirmatory factor analysis (CFA), internal consistency analysis, correlation analysis, and linear regression models. RESULTS: Patients' health literacy assessed with the HL-SF12 was shown with high internal consistency (Cronbach α = .87), and moderately correlated with the single-item from Chew's Set of Brief Health Literacy Question, with satisfactory item-scale convergent validity (item-scale correlation ≥ .40), without floor/ceiling effect, and with satisfactory goodness of fit indices of the three-factor construct model for most of the patients. Their health literacy was significantly positively associated with female gender, higher income, and more often watching health-related TV programs. On the other hands, patients were reported with significantly higher healthcare health literacy than the general public, but not in general health literacy, disease prevention health literacy, or health promotion health literacy. CONCLUSION: The comprehensive HL-SF12 was a valid and easy to use tool for assessing patients' health literacy in the hospitals to facilitate healthcare providers in enhancing patients' health literacy and healthcare qualities.
Cross-Sectional Studies
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Delivery of Health Care
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Female
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Hand
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Health Literacy*
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Health Personnel
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Health Promotion
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Hospitals, General
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Humans
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Linear Models
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Taiwan
4.Ministry of Health Clinical Practice Guidelines: Lipids.
E Shyong TAI ; Boon Lock CHIA ; Amber Carla BASTIAN ; Terrance CHUA ; Sally Chih Wei HO ; Teck Siew KOH ; Lip Ping LOW ; Jeannie S TEY ; Kian Keong POH ; Chee Eng TAN ; Peter TING ; Tat Yean THAM ; Sue-Anne TOH ; Rob M van DAM
Singapore medical journal 2017;58(3):155-166
The Ministry of Health (MOH) has updated the Clinical Practice Guidelines on Lipids to provide doctors and patients in Singapore with evidence-based treatment for lipids. This article reproduces the introduction and executive summary (with recommendations from the guidelines) from the MOH Clinical Practice Guidelines on Lipids, for the information of SMJ readers. Chapters and page numbers mentioned in the reproduced extract refer to the full text of the guidelines, which are available from the Ministry of Health website: http://www.moh.gov.sg/content/moh_web/healthprofessionalsportal/doctors/guidelines/cpg_medical.html.
Adult
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Cardiovascular Diseases
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complications
;
therapy
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Child
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Coronary Artery Disease
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complications
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therapy
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Decision Support Systems, Clinical
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Dyslipidemias
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blood
;
complications
;
therapy
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Evidence-Based Medicine
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Female
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Humans
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Kidney Failure, Chronic
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complications
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therapy
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Life Style
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Lipids
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blood
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Lipoproteins, LDL
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blood
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Male
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Practice Guidelines as Topic
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Pregnancy
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Pregnancy Complications
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Risk Assessment
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Risk Factors
;
Singapore
5.High levels of platelet-to-lymphocyte ratio may predict reduced risk of end stage of renal disease in Chinese patients with MPO-ANCA associated vasculitis.
Li HUANG ; Chanjuan SHEN ; Yong ZHONG ; Joshua D OOI ; Peter J EGGENHUIZEN ; Ya'ou ZHOU ; Jinbiao CHEN ; Ting WU ; Ting MENG ; Zhou XIAO ; Wei LIN ; Rong TANG ; Xiang AO ; Xiangcheng XIAO ; Qiaoling ZHOU ; Ping XIAO
Journal of Central South University(Medical Sciences) 2022;47(2):211-218
OBJECTIVES:
Platelet-to-lymphocyte ratio (PLR) has recently been investigated as a new inflammatory marker in many inflammatory diseases, including systemic lupus erythematosus and immunoglobulin A vasculitis. However, there were very few reports regarding the clinical role of PLR in patients with anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis. This study was thus undertaken to investigate the relationship between inflammatory response and disease activity in Chinese patients with myeloperoxidase-anti-neutrophil cytoplasmic antibody (MPO-ANCA) associated vasculitis. Furthermore, we evaluated whether PLR predicts the progression of end stage of renal disease (ESRD) and all-cause mortality.
METHODS:
The clinical, laboratory and pathological data, and the outcomes of MPO-ANCA associated vasculitis patients were collected. The Spearman correlation coefficient was computed to examine the association between 2 continuous variables. Cox regression analysis was used to estimate the association between PLR and ESRD or all-cause mortality.
RESULTS:
A total of 190 consecutive patients with MPO-ANCA associated vasculitis were included in this study. Baseline PLR was positively correlated with CRP (r=0.333, P<0.001) and ESR (r=0.218, P=0.003). PLR had no obvious correlation with Birmingham Vasculitis Activity Score (BVAS). Patients having PLR≥330 exhibited better cumulative renal survival rates than those having PLR<330 (P=0.017). However, there was no significant difference in the cumulative patient survival rates between patients with PLR≥330 and those with PLR<330 at diagnosis (P>0.05). In multivariate analysis, PLR is associated with the decreased risk of ESRD (P=0.038, HR=0.518, 95% CI 0.278 to 0.963). We did not find an association between PLR with all-cause mortality using multivariate analysis (HR=1.081, 95% CI 0.591 to 1.976, P=0.801).
CONCLUSIONS
PLR is positively correlated with CRP and ESR. Furthermore, PLR may independently predict the risk of ESRD.
Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/diagnosis*
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Antibodies, Antineutrophil Cytoplasmic/analysis*
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China/epidemiology*
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Humans
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Kidney Failure, Chronic/complications*
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Lymphocytes
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Peroxidase
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Retrospective Studies
6.Single-cell RNA sequencing reveals the transcriptomic landscape of kidneys in patients with ischemic acute kidney injury.
Rong TANG ; Peng JIN ; Chanjuan SHEN ; Wei LIN ; Leilin YU ; Xueling HU ; Ting MENG ; Linlin ZHANG ; Ling PENG ; Xiangcheng XIAO ; Peter EGGENHUIZEN ; Joshua D OOI ; Xueqin WU ; Xiang DING ; Yong ZHONG
Chinese Medical Journal 2023;136(10):1177-1187
BACKGROUND:
Ischemic acute kidney injury (AKI) is a common syndrome associated with considerable mortality and healthcare costs. Up to now, the underlying pathogenesis of ischemic AKI remains incompletely understood, and specific strategies for early diagnosis and treatment of ischemic AKI are still lacking. Here, this study aimed to define the transcriptomic landscape of AKI patients through single-cell RNA sequencing (scRNA-seq) analysis in kidneys.
METHODS:
In this study, scRNA-seq technology was applied to kidneys from two ischemic AKI patients, and three human public scRNA-seq datasets were collected as controls. Differentially expressed genes (DEGs) and cell clusters of kidneys were determined. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis, as well as the ligand-receptor interaction between cells, were performed. We also validated several DEGs expression in kidneys from human ischemic AKI and ischemia/reperfusion (I/R) injury induced AKI mice through immunohistochemistry staining.
RESULTS:
15 distinct cell clusters were determined in kidney from subjects of ischemic AKI and control. The injured proximal tubules (PT) displayed a proapoptotic and proinflammatory phenotype. PT cells of ischemic AKI had up-regulation of novel pro-apoptotic genes including USP47 , RASSF4 , EBAG9 , IER3 , SASH1 , SEPTIN7 , and NUB1 , which have not been reported in ischemic AKI previously. Several hub genes were validated in kidneys from human AKI and renal I/R injury mice, respectively. Furthermore, PT highly expressed DEGs enriched in endoplasmic reticulum stress, autophagy, and retinoic acid-inducible gene I (RIG-I) signaling. DEGs overexpressed in other tubular cells were primarily enriched in nucleotide-binding and oligomerization domain (NOD)-like receptor signaling, estrogen signaling, interleukin (IL)-12 signaling, and IL-17 signaling. Overexpressed genes in kidney-resident immune cells including macrophages, natural killer T (NKT) cells, monocytes, and dendritic cells were associated with leukocyte activation, chemotaxis, cell adhesion, and complement activation. In addition, the ligand-receptor interactions analysis revealed prominent communications between macrophages and monocytes with other cells in the process of ischemic AKI.
CONCLUSION
Together, this study reveals distinct cell-specific transcriptomic atlas of kidney in ischemic AKI patients, altered signaling pathways, and potential cell-cell crosstalk in the development of AKI. These data reveal new insights into the pathogenesis and potential therapeutic strategies in ischemic AKI.
Humans
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Mice
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Animals
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Transcriptome/genetics*
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Ligands
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Kidney/metabolism*
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Acute Kidney Injury/metabolism*
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Ischemia/metabolism*
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Reperfusion Injury/metabolism*
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Sequence Analysis, RNA
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Adaptor Proteins, Signal Transducing/metabolism*
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Tumor Suppressor Proteins/metabolism*