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Ramírez L, Sánchez I, Muñoz M, Martínez-Acitores ML, Garrido E, Hernández G, López-Pintor RM. Risk factors associated with xerostomia and reduced salivary flow in hypertensive patients. Oral Dis 2023; 29:1299-1311. [PMID: 34839577 DOI: 10.1111/odi.14090] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 11/20/2021] [Accepted: 11/23/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the risk factors associated with xerostomia and hyposalivation in a group of hypertensive patients. SUBJECTS AND METHODS A cross-sectional study was conducted. Hypertensive patients belonged to two healthcare centers were included. Xerostomia was assessed by asking a question and using the Xerostomia Inventory. Unstimulated salivary flow was collected. Different epidemiological variables were analyzed such as age, sex, habits, diseases, drugs, and blood pressure. RESULTS 221 individuals were included. Xerostomia was reported in 51.13% of patients. Patients with xerostomia suffered more from osteoarthritis and diaphragmatic hernia. These patients took more anticoagulants (acenocoumarol), antiarrhythmics (amiodarone), analgesics (paracetamol) and epilepsy drugs (pregabalin) and less platelet aggregation inhibitors and angiotensin II receptor blockers (losartan). Unstimulated flow was reduced in 37.56% of patients. Patients suffering hyposalivation presented more diseases such as anxiety, infectious or parasitic diseases, hepatitis C, diaphragmatic hernia, and osteoarthritis. These patients took more repaglinide, thiazides, anti-inflammatories, anti-rheumatics, glucosamine, diazepam, and selective beta-2-adrenoreceptor agonists and less combinations of candesartan and diuretics. CONCLUSIONS Xerostomia and hyposalivation are frequent in hypertensive patients. It is advisable to take into consideration the comorbidities and the drugs they receive, since they can increase the risk of these salivary disorders.
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Affiliation(s)
- Lucía Ramírez
- Department of Dental Clinical Specialties, ORALMED Research Group, School of Dentistry, Complutense University, Madrid, Spain
| | - Isabel Sánchez
- Department of Dental Clinical Specialties, ORALMED Research Group, School of Dentistry, Complutense University, Madrid, Spain
| | - Marta Muñoz
- Department of Clinical Dentistry, School of Biomedical Science, European University of Madrid, Villaviciosa de Odón, Madrid, Spain
| | | | | | - Gonzalo Hernández
- Department of Dental Clinical Specialties, ORALMED Research Group, School of Dentistry, Complutense University, Madrid, Spain
| | - Rosa María López-Pintor
- Department of Dental Clinical Specialties, ORALMED Research Group, School of Dentistry, Complutense University, Madrid, Spain
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2
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Agbor VN, Tianyi FL, Aminde LN, Mbanga CM, Petnga SJN, Simo LP, Dzudie A, Chobufo MD, Noubiap JJ. Burden of atrial fibrillation among adults with heart failure in sub-Saharan Africa: a systematic review and meta-analysis. BMJ Open 2022; 12:e061618. [PMID: 36223967 PMCID: PMC9562316 DOI: 10.1136/bmjopen-2022-061618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES This study aimed to estimate the prevalence of atrial fibrillation (AF) in adults with heart failure (HF) and summarise the all-cause mortality ratio among adult patients with coexisting HF and AF in sub-Saharan Africa (SSA). SETTING This was a systematic review and meta-analysis of cross-sectional and cohort studies with primary data on the prevalence and incidence of AF among patients with HF and the all-cause mortality ratio among patients with HF and AF in SSA. We combined text words and MeSH terms to search MEDLINE, PubMed and Global Health Library through Ovid SP, African Journals Online and African Index Medicus from database inception to 10 November 2021. Random-effects meta-analysis was used to estimate pooled prevalence. PRIMARY OUTCOME MEASURES The prevalence and incidence of AF among patients with HF, and the all-cause mortality ratio among patients with HF and AF. RESULTS Twenty-seven of the 1902 records retrieved from database searches were included in the review, totalling 9987 patients with HF. The pooled prevalence of AF among patients with HF was 15.6% (95% CI 12.0% to 19.6%). At six months, the all-cause mortality was 18.4% (95% CI 13.1% to 23.6%) in a multinational registry and 67.7% (95% CI 51.1% to 74.3%) in one study in Tanzania. The one-year mortality was 48.6% (95% CI 32.5% to 64.7%) in a study in the Democratic Republic of Congo. We did not find any study reporting the incidence of AF in HF. CONCLUSION AF is common among patients with HF in SSA, and patients with AF and HF have poor survival. There is an urgent need for large-scale population-based prospective data to reliably estimate the prevalence, incidence and risk of mortality of AF among HF patients in SSA to better understand the burden of AF in patients with HF in the region. PROSPERO REGISTRATION NUMBER CRD42018087564.
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Affiliation(s)
- Valirie Ndip Agbor
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
- Population Health Research, Health Education and Research Organisation, Buea, Southwest, Cameroon
| | | | - Leopold Ndemnge Aminde
- School of Medicine and Dentistry, Griffith University, Gold Coast, Queensland, Australia
| | | | - Saint Just N Petnga
- Kousseri Regional Hospital, Far-North Regional Delegation for Health, Kousseri, Cameroon
| | - Larissa Pone Simo
- General Practice, Dzeng Sub-divisional Hospital, Dzeng, Centre Region, Cameroon
| | - Anastase Dzudie
- Cardiology and Cardiac Pacing Unit, Department of Medicine, Douala General Hospital, Douala, Cameroon
| | - Muchi Ditah Chobufo
- Department of Cardiovascular Diseases Heart and Vascular Institute, West Virginia University, Morgantown, West Virginia, USA
| | - Jean Jacques Noubiap
- Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia, University of Adelaide CHRD, Adelaide, South Australia, Australia
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3
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Roth ME, Chinn ME, Dunn SP, Bilchick KC, Mazimba S. Association of colchicine use for acute gout with clinical outcomes in acute decompensated heart failure. Clin Cardiol 2022; 45:733-741. [PMID: 35481608 PMCID: PMC9286335 DOI: 10.1002/clc.23830] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 11/09/2022] Open
Abstract
Background Gout is a common comorbidity in heart failure (HF) patients and is frequently associated with acute exacerbations during treatment for decompensated HF. Although colchicine is often used to manage acute gout in HF patients, its impact on clinical outcomes when used during acute decompensated HF is unknown. Methods This was a single center, retrospective study of hospitalized patients treated for an acute HF exacerbation with and without acute gout flare between March 2011 and December 2020. We assessed clinical outcomes in patients treated with colchicine for a gout flare compared to those who did not experience a gout flare or receive colchicine. The primary outcome was in‐hospital all‐cause mortality. Results Among 1047 patient encounters for acute HF during the study period, there were 237 encounters (22.7%) where the patient also received colchicine for acute gout during admission. In‐hospital all‐cause mortality was significantly reduced in the colchicine group compared with the control group (2.1% vs. 6.5%, p = .009). The colchicine group had increased length of stay (9.93 vs. 7.96 days, p < .001) but no significant difference in 30‐day readmissions (21.5% vs. 19.5%, p = .495). In a Cox proportional hazards model adjusted for age, inpatient colchicine use was associated with improved survival to discharge (hazards ratio [HR] 0.163, 95% confidence interval [CI] 0.051−0.525, p = .002) and a reduced rate of in‐hospital CV mortality (HR 0.184, 95% CI 0.044−0.770, p = .021). Conclusion Among patients with a HF exacerbation, treatment with colchicine for a gout flare was associated with significantly lower in‐hospital mortality compared with those not treated for acute gout.
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Affiliation(s)
- Mary E Roth
- Department of Pharmacy, University of Virginia Health, Charlottesville, Virginia, USA
| | - Melissa E Chinn
- Department of Pharmacy, University of Virginia Health, Charlottesville, Virginia, USA
| | - Steven P Dunn
- Department of Pharmacy, University of Virginia Health, Charlottesville, Virginia, USA
| | - Kenneth C Bilchick
- Department of Medicine-Cardiovascular Medicine, University of Virginia Health, Charlottesville, Virginia, USA
| | - Sula Mazimba
- Department of Medicine-Cardiovascular Medicine, University of Virginia Health, Charlottesville, Virginia, USA
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4
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Lemogoum D, Kamdem F, Ba H, Ngatchou W, Hye Ndindjock G, Dzudie A, Monkam Y, Mouliom S, Hermans MP, Bika Lele EC, van de Borne P. Epidemiology of acutely decompensated systolic heart failure over the 2003-2013 decade in Douala General Hospital, Cameroon. ESC Heart Fail 2020; 8:481-488. [PMID: 33225620 PMCID: PMC7835589 DOI: 10.1002/ehf2.13098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/09/2020] [Accepted: 10/21/2020] [Indexed: 11/09/2022] Open
Abstract
AIMS Acutely decompensated heart failure (HF) (ADHF) is a common cause of hospitalization and mortality worldwide. This study explores the epidemiology and prognostic factors of ADHF in Cameroonian patients. METHODS AND RESULTS This was a retrospective study conducted between January 2003 and December 2013 from the medical files of patients followed at the intensive care and cardiovascular units of Douala General Hospital in Cameroon. Clinical, electrocardiographic, echocardiographic, and biological data were collected from 142 patients (58.5% men; mean age 58 ± 14 years) hospitalized for ADHF with reduced ejection fraction (HFrEF), whose left ventricular ejection fraction was <50%, or alternatively whose shortening fraction was <28%, both assessed by echocardiography. The commonest risk factors associated with HFrEF were hypertension (59.2%), diabetes mellitus (16.2%), tobacco use (14.1%), and dyslipidaemia (7.7%), respectively. The major causes of HF in hospitalized patients were hypertensive heart disease (40%, n = 57); hypertrophic cardiomyopathy (33.8%, n = 48); and ischemic heart disease (21.8%, n = 31). The most frequent comorbid conditions were atrial fibrillation (25.4%, n = 36) and chronic kidney disease (18.3%, n = 26). Major biological abnormalities included increased bilirubinemia >12 mg/L (87.5%, n = 124); hyperuricaemia >70 mg/L (84.9%, n = 121); elevated serum creatinine (65.6%, n = 93); anaemia (59.1%, n = 84); hyperglycaemia on admission >1.8 g/L (42.3%, n = 60); and hyponatraemia <135 mEq/L (26.8%, n = 38). At admission, 33.8% (n = 48) of patients had no pharmacological treatment for HF. The most frequently used therapies upon admission included furosemide (50%, n = 71), angiotensin-converting enzyme inhibitors (ACEIs; 40.1%, n = 57); spironolactone (35.2%, n = 50); digoxin (26%, n = 37); beta-blockers (17.7%, n = 25); angiotensin-receptor blockers (ARBs; 7%, n = 10); and nitrates (7.0%). The overall in-hospital mortality rate was 20.4%. Factors associated with poor prognosis were systolic blood pressure <90 mmHg [odds ratio (OR) 3.88; confidence interval (CI) 1.36-11.05, P = 0.011], left ventricular ejection fraction <20% (OR 7.48; CI 2.84-19.71, P < 0.001), decreased renal function (OR 1.03; CI 1.00-1.05, P = 0.026), dobutamine use for cardiogenic shock (OR 2.74;CI 1.00-7.47, P = 0.049), pleural fluid effusion (OR 3.46; CI 1.07-11.20, P = 0.038), and prothrombin time <50% (OR 3.60; CI 1.11-11.68, P = 0.033). The use of ACEIs/ARBs was associated with reduced in-hospital mortality rate (OR 0.17; CI 0.02-0.81, P = 0.006). CONCLUSIONS Hypertensive heart disease, hypertrophic cardiomyopathy, and ischemic heart disease are the commonest causes of HF in this Cameroonian population. ADHF is associated with high in-hospital mortality in Cameroon. Hypotension, severe left ventricular systolic dysfunction, renal function impairment, and dobutamine administration were associated with worst acute HF outcomes. ACEIs/ARBs use was associated with improved survival.
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Affiliation(s)
- Daniel Lemogoum
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon.,Cameroon Heart Institute, Cameroon Heart Foundation, Douala, Cameroon.,Department of Cardiology, ULB-Erasme Hospital, Free Brussels University, Brussels, Belgium
| | - Félicité Kamdem
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Hamadou Ba
- Faculty of Medicine and Biomedical Sciences, University of Yaounde, Yaounde, Cameroon
| | - William Ngatchou
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon.,Cameroon Heart Institute, Cameroon Heart Foundation, Douala, Cameroon
| | | | - Anasthase Dzudie
- Faculty of Medicine and Biomedical Sciences, University of Yaounde, Yaounde, Cameroon
| | | | - Sidick Mouliom
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Michel P Hermans
- Endocrinology and Nutrition Unit, Cliniques Universitaires St-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Elysée Claude Bika Lele
- Cameroon Heart Institute, Cameroon Heart Foundation, Douala, Cameroon.,Unité de Physiologie et de Médecine des APS, Faculté des Sciences, University of Douala, BP: 7064, Douala, Cameroon
| | - Philippe van de Borne
- Department of Cardiology, ULB-Erasme Hospital, Free Brussels University, Brussels, Belgium
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5
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Chen HH, Hsieh MC, Ho CW, Chen CC, Hsu SP, Chang SS, Lin CL, Kao CH. Increased the risk of heart failure and comorbidities in patients with gout treatment: a population-based cohort study. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:462. [PMID: 32395506 PMCID: PMC7210207 DOI: 10.21037/atm.2020.03.124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background To investigate the association between gout treatment and heart failure (HF). Methods Patients with gout between 2000 and 2010 constituted the gout cohort. The main outcome was a new diagnosis of HF. Multivariable Cox proportional hazard regression models were used to measure the effect of gout on the risk of developing HF. The Kaplan-Meier method was used to estimate the cumulative HF incidence curve for the gout and nongout cohorts. Results The cohort study included 50,166 patients with gout. The incidence of HF was 1.96 times higher in the gout cohort than the non-gout cohort (7.11 vs. 3.63 per 10,000 person-years). The adjusted HR of developing HF was a 1.06-fold increase (95% CI: 1.06–1.07) with age and a 1.08-fold increase for women compared with men (95% CI: 1.02–1.14). HF incidence was higher in patients with receiving any two or more types of anti-gout drug treatment. Conclusions Our study revealed that gout could increase the risk of HF. Gout treatment in Taiwan cannot improve HF and actually increase the risk for HF after combination therapy for gout. The public health burden of gout should be resolved in the future.
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Affiliation(s)
- Hsin-Hung Chen
- Intelligent Diabetes Metabolism and Exercise Center, China Medical University Hospital, Taichung.,School of Medicine, Institute of Medicine and Public Health, Chung Shan Medical University, Taichung
| | - Ming-Chia Hsieh
- Intelligent Diabetes Metabolism and Exercise Center, China Medical University Hospital, Taichung.,Graduate Institute of Integrative Medicine, China Medical University, Taichung.,Division of Clinical Nutrition, Department of Internal Medicine, China Medical University Hospital, Taichung
| | - Chun-Wei Ho
- Intelligent Diabetes Metabolism and Exercise Center, China Medical University Hospital, Taichung
| | - Ching-Chu Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, China Medical University Hospital, Taichung.,School of Chinese Medicine, China Medical University, Taichung
| | - Sheng-Pang Hsu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, China Medical University Hospital, Taichung
| | - Shih-Sheng Chang
- Division of Cardiovascular Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung.,School of Medicine, College of Medicine, China Medical University, Taichung
| | - Cheng-Li Lin
- School of Medicine, College of Medicine, China Medical University, Taichung.,Management Office for Health Data, China Medical University Hospital, Taichung
| | - Chia-Hung Kao
- Graduate Institute of Clinical Medical Science, School of Medicine, College of Medicine, China Medical University, Taichung.,Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung.,Center of Augmented Intelligence in Healthcare, China Medical University Hospital, Taichung
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6
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Ajayi AA, Sofowora GG, Ladipo GO. Explaining Heart Failure Hyper-mortality in Sub Saharan Africa: Global Genomic and Environmental Contribution Review. J Natl Med Assoc 2020; 112:141-157. [PMID: 32165009 DOI: 10.1016/j.jnma.2020.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 02/05/2020] [Accepted: 02/11/2020] [Indexed: 12/11/2022]
Abstract
The annual heart failure (HF) mortality rate in Africa is 34% according to the INTERHF study. This is twice the world average of 16.5% and 3.7 times that of South America, 9%. We review evidence-based explanations for the Hyper-mortality of HF, by comparison of North American, Caribbean, Afro-Brazilian with Sub-Saharan African (SSA) nations profiles, and suggest amelioration. 1 year HF mortality rates in SSA ranged from 29% to 58%, and intra-hospital mortality rate from 8 to 26% (n = 8). A clustering of adverse genetic single nucleotide polymorphisms (SNP) predisposing to hypertension and/or left ventricular hypertrophy (LVH) in the black diaspora may contribute. A higher prevalence of HF with reduced Ejection Fraction (HF r EF) phenotype, which is associated with greater mortality is more common in SSA nations. Additionally, a worse co-morbidity burden, especially valvular regurgitations causing LV remodeling (LVR), chronic kidney disease (CKD), anemia, lung disease, infections, late presentation in NYHA III/IV, right ventricular disease (RVD) were also common in SSA. Geographic variation in SSA, HF risk factors and co-morbidity was observed. There was sub-optimal use of guideline directed medical therapy (GDMT) and intracardiac device (ICD) unavailability. Gross Domestic Product -per purchasing power parity (GDP-PPP), which is low in SSA, was inversely correlated both to higher intra-hospital mortality rate % (r = -0.73, r 2 = 0.54 p = 0.038) and higher 1 year HF mortality rate % (r = -0.62, r 2 = 0.38, = 0.098). Localized primary prevention, early detection and prompt treatment of hypertension, diabetes, rheumatic fever, early cardiac valve repair and use of cardiovascular polypill, optimal use of GDMT, national health insurance scheme are advocated to stem the dismal mortality and cost burden of HF.
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Affiliation(s)
- Adesuyi A Ajayi
- Adjunct Professor, Department of Medicine, Division of Hypertension and Clinical Pharmacology, Baylor College of Medicine, Houston, TX, 77060, USA.
| | - Gbemiga G Sofowora
- Associate Professor of Cardiology, Cardiovascular Medicine Division, Ohio State University Medical Center, Columbus, OH, 43210, USA
| | - Gani O Ladipo
- Retired Professor of Cardiology, Obafemi Awolowo University, Ile -ife, Osun State, Nigeria
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7
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Zhang L, Ma L, Sun F, Tang Z, Chan P. A Multicenter Study of Multimorbidity in Older Adult Inpatients in China. J Nutr Health Aging 2020; 24:269-276. [PMID: 32115607 PMCID: PMC7026204 DOI: 10.1007/s12603-020-1311-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 10/18/2019] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Multimorbidity is common in older hospitalized adults. To date, however, few studies have addressed multimorbidity in the older population of Chinese inpatients. We aimed to investigate the multimorbidity rate and associated risk factors in older adult inpatients in China. DESIGN, SETTING, PARTICIPANTS This study was conducted in the medical wards of a tertiary-care hospital from. The patients were recruited aged between 60 to 101 (74.14±8.46) years. MEASUREMENTS Data were obtained from the China Comprehensive Geriatric Assessment Study, conducted in 2011-2012 in China. A total of 4,633 inpatients older than 60 years was recruited from 12 hospitals in 7 cities throughout China. The prevalence of comorbidity, distribution of common chronic diseases, and the associated risk factors were studied. RESULTS A total of 4,348 people aged 60 to 101 (74.14±8.46) years completed questionnaires. The average frequency of multimorbidity was 69.3% (95% CI, 67.9% to 70.6%). The prevalence of multimorbidity increased with age and was higher in men (71.6%; 95% CI, 69.9% to 73.3%) than in women (65.3%, 95% CI 63.0% to 67.6%), and higher in the northern region (71.7%, 95% CI 69.9% to 73.5%) than in the southern region (66.0%; 95% CI, 63.8% to 68.1%). The most frequent chronic diseases were hypertension, coronary heart disease, diabetes, cataract, and stroke. Area (OR=0.556; 95% CI, 0.465 to 0.666), region (OR=0.834; 95% CI, 0.723 to 0.962), body mass index (BMI) (OR=1.124; 95% CI, 1.017 to 1.242), and impairment of activities of daily living (OR=0.911; 95% CI, 0.855 to 0.970) were independent factors associated with multimorbidity. CONCLUSIONS Multimorbidity is common in older Chinese inpatients with a national prevalence of 69.3% that increases in line with age. Age, region, area, BMI, and daily activities were independent factors significantly associated with multimorbidity in older inpatients. Clinicians should therefore focus more attention on multimorbidity.
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Affiliation(s)
- L Zhang
- Piu Chan, MD, Department of Neurobiology, Xuanwu Hospital of Capital MedicalUniversity, Beijing 100053, China. . Zhe Tang, MD, Beijing Geriatric Healthcare Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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8
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Guo M, Yu Y, Wen T, Zhang X, Liu B, Zhang J, Zhang R, Zhang Y, Zhou X. Analysis of disease comorbidity patterns in a large-scale China population. BMC Med Genomics 2019; 12:177. [PMID: 31829182 PMCID: PMC6907122 DOI: 10.1186/s12920-019-0629-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Disease comorbidity is popular and has significant indications for disease progress and management. We aim to detect the general disease comorbidity patterns in Chinese populations using a large-scale clinical data set. METHODS We extracted the diseases from a large-scale anonymized data set derived from 8,572,137 inpatients in 453 hospitals across China. We built a Disease Comorbidity Network (DCN) using correlation analysis and detected the topological patterns of disease comorbidity using both complex network and data mining methods. The comorbidity patterns were further validated by shared molecular mechanisms using disease-gene associations and pathways. To predict the disease occurrence during the whole disease progressions, we applied four machine learning methods to model the disease trajectories of patients. RESULTS We obtained the DCN with 5702 nodes and 258,535 edges, which shows a power law distribution of the degree and weight. It further indicated that there exists high heterogeneity of comorbidities for different diseases and we found that the DCN is a hierarchical modular network with community structures, which have both homogeneous and heterogeneous disease categories. Furthermore, adhering to the previous work from US and Europe populations, we found that the disease comorbidities have their shared underlying molecular mechanisms. Furthermore, take hypertension and psychiatric disease as instance, we used four classification methods to predicte the disease occurrence using the comorbid disease trajectories and obtained acceptable performance, in which in particular, random forest obtained an overall best performance (with F1-score 0.6689 for hypertension and 0.6802 for psychiatric disease). CONCLUSIONS Our study indicates that disease comorbidity is significant and valuable to understand the disease incidences and their interactions in real-world populations, which will provide important insights for detection of the patterns of disease classification, diagnosis and prognosis.
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Affiliation(s)
- Mengfei Guo
- School of Computer and Information Technology and Beijing Key Lab of Traffic Data Analysis and Mining, Beijing Jiaotong University, Beijing, 100044, China
| | - Yanan Yu
- School of Computer and Information Technology and Beijing Key Lab of Traffic Data Analysis and Mining, Beijing Jiaotong University, Beijing, 100044, China
| | - Tiancai Wen
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China.,School of Computer Science, Northwestern Polytechnical University, Xi'an, 710129, Shanxi Province, China
| | - Xiaoping Zhang
- China Academy of Chinese Medicine Sciences, Beijing, 100070, China
| | - Baoyan Liu
- China Academy of Chinese Medicine Sciences, Beijing, 100070, China.
| | - Jin Zhang
- Data Center of Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Runshun Zhang
- China Academy of Chinese Medical Sciences, Guang'anmen Hospital, Beijing, 100053, China
| | - Yanning Zhang
- School of Computer Science, Northwestern Polytechnical University, Xi'an, 710129, Shanxi Province, China.
| | - Xuezhong Zhou
- School of Computer and Information Technology and Beijing Key Lab of Traffic Data Analysis and Mining, Beijing Jiaotong University, Beijing, 100044, China.
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9
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Ikama MS, Makani J, Nsitou BM, Mongo-Ngamami SF, Ellenga-Mbolla BF, Ondze-Kafata LI, Gombet TR, Kimbally-Kaky SG. [Echocardiographic profile of Congolese hypertensive patients]. Ann Cardiol Angeiol (Paris) 2018; 68:32-38. [PMID: 30290912 DOI: 10.1016/j.ancard.2018.08.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 08/29/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To assess echocardiographic aspect of Congolese hypertensive patients, and to identify predictive factors of left ventricular hypertrophy (LVH). PATIENTS AND METHODS A transversal study was lead in Brazzaville from January 2011 to December 2013 (36 months). In total, 1125 hypertensive patients under treatment underwent transthoracic echocardiography. The test was carried out either as part of an initial assessment of the hypertension disease or during the development of evocative symptom or complication. Patients' sociodemographic data and echocardiographic parameters were collected and analyzed. RESULTS There were 621 males (55.2%) and 504 females (44.8%), mean age 54.7±12 years. The main indication of the test were the hypertension initial evaluation in 792 cases (70.4%), dyspnea in 122 cases (10.8%), investigation of ischemic stroke in 101 cases (9%), cardiac failure and chest pain in respectively 58 and 52 cases. 5.3±4.7 years known duration of hypertension status was associated with overweight/obesity in 829 cases (73.7%), physical inactivity in 669 cases (59.5%), hypertension family history in 540 cases (48%), diabetes mellitus in 122 cases (10.8%), dyslipidemia in 82 cases (7.3%), smoking in 29 cases (2.6%). Echocardiographic test was abnormal in 590 cases (52.4%) and showed hypertrophic cardiomyopathy in 510 cases (45.2%), dilated and hypertrophic cardiomyopathy in 46 cases (4.1%), dilated cardiomyopathy with systolic dysfunction in 31 cases (2.8%), coronary artery disease in 4 cases (0.4%). LVH was concentric in 470 cases (84.6%), eccentric in 70 cases (12.6%), and in 16 cases (3%), it was a concentric left ventricular remodeling. The left ventricular's systolic ejection fraction average was 70.5±9.3%, relaxation disorders in 480 cases (42.6%). Age, male gender, income, known duration of hypertension and treatment were predictive factors of LVH. CONCLUSIONS Echocardiographic profile of the Congolese hypertensive is quite various, left ventricular hypertrophy is the most predominant abnormality. Efficient management on the hypertension will lead to reduce its morbidity and mortality.
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Affiliation(s)
- M S Ikama
- Service de cardiologie, Centre Hospitalier Universitaire de Brazzaville, BP 2234, Brazzaville, Congo.
| | - J Makani
- Service de cardiologie, Centre Hospitalier Universitaire de Brazzaville, BP 2234, Brazzaville, Congo
| | - B M Nsitou
- Service de cardiologie, Centre Hospitalier Universitaire de Brazzaville, BP 2234, Brazzaville, Congo
| | - S F Mongo-Ngamami
- Service de cardiologie, Centre Hospitalier Universitaire de Brazzaville, BP 2234, Brazzaville, Congo
| | - B F Ellenga-Mbolla
- Service de cardiologie, Centre Hospitalier Universitaire de Brazzaville, BP 2234, Brazzaville, Congo
| | - L I Ondze-Kafata
- Service de cardiologie, Centre Hospitalier Universitaire de Brazzaville, BP 2234, Brazzaville, Congo
| | - T R Gombet
- Service des urgences, Centre Hospitalier Universitaire de Brazzaville, Congo
| | - S G Kimbally-Kaky
- Service de cardiologie, Centre Hospitalier Universitaire de Brazzaville, BP 2234, Brazzaville, Congo
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Jin L, Guo X, Dou J, Liu B, Wang J, Li J, Sun M, Sun C, Yu Y, Yao Y. Multimorbidity Analysis According to Sex and Age towards Cardiovascular Diseases of Adults in Northeast China. Sci Rep 2018; 8:8607. [PMID: 29872063 PMCID: PMC5988667 DOI: 10.1038/s41598-018-25561-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/23/2018] [Indexed: 12/29/2022] Open
Abstract
Non-communicable diseases (NCDs) are great challenges in public health, where cardiovascular diseases (CVD) accounted for the large part of mortality that caused by NCDs. Multimorbidity is very common in NCDs especially in CVD, thus multimorbidity could make NCDs worse and bring heavy economic burden. This study aimed to explore the multimorbidity among adults, especially the important role of CVD that played in the entire multimorbidity networks. A total of 21435 participants aged 18-79 years old were recruited in Jilin province in 2012. Weighted networks were adopted to present the complex relationships of multimorbidity, and Charlson Comorbidity Index (CCI) was used to evaluate the burden of multimorbidity. The prevalence of CVD was 14.97%, where the prevalence in females was higher than that in males (P < 0.001), and the prevalences of CVD increased with age (from 2.22% to 38.38%). The prevalence of multimorbidity with CVD was 96.17%, and CVD could worsen the burden of multimorbidity. Multimorbidity and multimorbidity with CVD were more marked in females than those in males. And the prevalence of multimorbidity was the highest in the middle-age, while the prevalence of multimorbidity with CVD was the highest in the old population.
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Affiliation(s)
- Lina Jin
- School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Xin Guo
- School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Jing Dou
- School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Binghui Liu
- Key Laboratory for Applied Statistics of MOE and School of Mathematics and Statistics, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Jiangzhou Wang
- Key Laboratory for Applied Statistics of MOE and School of Mathematics and Statistics, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Jiagen Li
- School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Mengzi Sun
- School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Chong Sun
- School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Yaqin Yu
- School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Yan Yao
- School of Public Health, Jilin University, Changchun, Jilin, 130021, China.
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Abstract
South Africa and other areas of sub-Saharan Africa have in the past 20 years undergone rapid demographical changes, largely due to urbanisation and changes in lifestyle. This rapid change has led to a marked increase in specific cardiac conditions, such as hypertensive heart disease and coronary artery disease (with the highest prevalence in the middle-aged population), in conjunction with a range of other heart diseases, which are historically common in Africa-eg, rheumatic heart disease, cardiomyopathies, and unoperated congenital heart disease. The short supply of well-equipped screening facilities, late diagnosis, and inadequate care at primary, secondary, and tertiary levels have led to a large burden of patients with poorly treated heart failure. Excellent progress has been made in the understanding of the epidemiology, sociodemographical factors, effect of urbanisation, and pathophysiology of cardiac conditions, such as peripartum cardiomyopathy, rheumatic heart disease, and tuberculous pericarditis, which are common in sub-Saharan Africa. This progress has been achieved largely through several studies, such as the Heart of Soweto, THESUS, REMEDY, BA-HEF, Abeokuta-HF, and the PAPUCO studies. Studies on the suitable therapeutic management of several heart conditions have also been done or are underway. In this Lecture, I provide a personal perspective on the evolving burden of cardiac disease, as witnessed since my appointment at Chris Hani Baragwanath Hospital, in Soweto, South Africa, in 1992, which was also the year that the referendum to end apartheid in South Africa was held. Subsequently, a network of cardiologists was formed under the umbrella of the Heart of Africa Studies and the Pan African Cardiac Society. Furthermore, I summarise the major gaps in the health-care system dealing with the colliding epidemic of communicable and non-communicable heart diseases, including cardiac diseases common in peripartum women. I also touch on the fantastic opportunities available for doing meaningful research with enthusiastic colleagues and, thereby, having a large effect, despite the need to be highly innovative in finding much needed funding support.
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Affiliation(s)
- Karen Sliwa
- Hatter Institute for Cardiovascular Research in Africa, South African Medical Research Council Inter-University Cape Heart Group, University of Cape Town, Cape Town, South Africa; The Institute of Infectious Disease and Molecular Medicine, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; The Mary MacKillop Institute for Health Research, Faculty of Health Sciences, Australian Catholic University, Melbourne, VIC, Australia; Soweto Cardiovascular Research Group, University of the Witwatersrand, Johannesburg, South Africa.
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Kingue S, Rakotoarimanana S, Rabearivony N, Bompera FL. Prevalence of selected cardiometabolic risk factors among adults in urban and semi-urban hospitals in four sub-Saharan African countries. Cardiovasc J Afr 2016; 28:147-153. [PMID: 27701489 PMCID: PMC5558135 DOI: 10.5830/cvja-2016-072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Accepted: 07/10/2016] [Indexed: 11/10/2022] Open
Abstract
Aim: Cardiovascular diseases (CVDs) are a global challenge but the burden in sub-Saharan African (SSA) countries is less well documented than elsewhere. We aimed to describe the key cardiometabolic risk factors in four SSA countries. Methods: A cross-sectional, multi-national, hospital-based study was carried out among adults (> 35 years) across four SSA countries from 12 December 2011 to 7 February 2013. Risk factors were defined using the World Health Organisation and International Diabetes Federation guidelines. Results: Of the 844 adults (57.4% female, mean age 52.6 years), 76.6% were urban residents. The predominant CVD risk factors were hypertension (74.1%), obesity (36.2%) and excessive alcohol consumption (25.6%). Diabetes (17.7 vs 10.0%), obesity (42.8 vs 16.8%) and hypercholesterolaemia (25.8 vs 18.0%) were more prevalent among the hypertensive subjects (all p < 0.007) than the normotensives. The metabolic syndrome (39.4%) was more common in women and hypertensive subjects. Conclusions: Hospital patients in SSA countries present with excessive rates of cardiometabolic risk factors. Focus on their prevention and control is warranted.
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Affiliation(s)
- Samuel Kingue
- Department of Cardiology, Faculty of Medicine of Yaounde, General Hospital of Yaounde, Yaounde, Cameroon.
| | | | - Nirina Rabearivony
- Department of Cardiology, Joseph Raseta Defelatalala University Hospital, Antananariv, Madagascar
| | - Francois Lepira Bompera
- Division of Nephrology, Department of Internal Medicine, University Clinic, Democratic Republic of Congo
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West C, Ploth D, Fonner V, Mbwambo J, Fredrick F, Sweat M. Developing a Screening Algorithm for Type II Diabetes Mellitus in the Resource-Limited Setting of Rural Tanzania. Am J Med Sci 2016; 351:408-15. [PMID: 27079348 DOI: 10.1016/j.amjms.2016.01.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 12/12/2015] [Indexed: 01/16/2023]
Abstract
BACKGROUND Noncommunicable diseases are on pace to outnumber infectious disease as the leading cause of death in sub-Saharan Africa, yet many questions remain unanswered with concern toward effective methods of screening for type II diabetes mellitus (DM) in this resource-limited setting. We aim to design a screening algorithm for type II DM that optimizes sensitivity and specificity of identifying individuals with undiagnosed DM, as well as affordability to health systems and individuals. METHODS Baseline demographic and clinical data, including hemoglobin A1c (HbA1c), were collected from 713 participants using probability sampling of the general population. We used these data, along with model parameters obtained from the literature, to mathematically model 8 purposed DM screening algorithms, while optimizing the sensitivity and specificity using Monte Carlo and Latin Hypercube simulation. RESULTS An algorithm that combines risk assessment and measurement of fasting blood glucose was found to be superior for the most resource-limited settings (sensitivity 68%, sensitivity 99% and cost per patient having DM identified as $2.94). Incorporating HbA1c testing improves the sensitivity to 75.62%, but raises the cost per DM case identified to $6.04. The preferred algorithms are heavily biased to diagnose those with more severe cases of DM. CONCLUSIONS Using basic risk assessment tools and fasting blood sugar testing in lieu of HbA1c testing in resource-limited settings could allow for significantly more feasible DM screening programs with reasonable sensitivity and specificity.
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Affiliation(s)
- Caroline West
- College of Medicine, Medical University of South Carolina, Charleston, South Carolina.
| | - David Ploth
- Department of Nephrology, Medical University of South Carolina, Charleston, South Carolina
| | - Virginia Fonner
- Department of Public Health, Johns Hopkins University, Baltimore, Maryland
| | - Jessie Mbwambo
- Department of Psychiatry, Muhimbili University of Health and Allied Sciences, Muhimbili National Hospital, Dar es Salaam, Tanzania
| | - Francis Fredrick
- School of Medicine, Muhimbili University of Health and Allied Sciences, Muhimbili National Hospital, Dar es Salaam, Tanzania
| | - Michael Sweat
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina
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Kimani K, Namukwaya E, Grant L, Murray SA. What is known about heart failure in sub-Saharan Africa: a scoping review of the English literature. BMJ Support Palliat Care 2016; 7:122-127. [DOI: 10.1136/bmjspcare-2015-000924] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 11/10/2015] [Accepted: 12/17/2015] [Indexed: 11/03/2022]
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Liu J, Ma J, Wang J, Zeng DD, Song H, Wang L, Cao Z. Comorbidity Analysis According to Sex and Age in Hypertension Patients in China. Int J Med Sci 2016; 13:99-107. [PMID: 26941567 PMCID: PMC4764775 DOI: 10.7150/ijms.13456] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 11/11/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Hypertension, an important risk factor for the health of human being, is often accompanied by various comorbidities. However, the incidence patterns of those comorbidities have not been widely studied. AIM Applying big-data techniques on a large collection of electronic medical records, we investigated sex-specific and age-specific detection rates of some important comorbidities of hypertension, and sketched their relationships to reveal the risk for hypertension patients. METHODS We collected a total of 6,371,963 hypertension-related medical records from 106 hospitals in 72 cities throughout China. Those records were reported to a National Center for Disease Control in China between 2011 and 2013. Based on the comprehensive and geographically distributed data set, we identified the top 20 comorbidities of hypertension, and disclosed the sex-specific and age-specific patterns of those comorbidities. A comorbidities network was constructed based on the frequency of co-occurrence relationships among those comorbidities. RESULTS The top four comorbidities of hypertension were coronary heart disease, diabetes, hyperlipemia, and arteriosclerosis, whose detection rates were 21.71% (21.49% for men vs 21.95% for women), 16.00% (16.24% vs 15.74%), 13.81% (13.86% vs 13.76%), and 12.66% (12.25% vs 13.08%), respectively. The age-specific detection rates of comorbidities showed five unique patterns and also indicated that nephropathy, uremia, and anemia were significant risks for patients under 39 years of age. On the other hand, coronary heart disease, diabetes, arteriosclerosis, hyperlipemia, and cerebral infarction were more likely to occur in older patients. The comorbidity network that we constructed indicated that the top 20 comorbidities of hypertension had strong co-occurrence correlations. CONCLUSIONS Hypertension patients can be aware of their risks of comorbidities based on our sex-specific results, age-specific patterns, and the comorbidity network. Our findings provide useful insights into the comorbidity prevention, risk assessment, and early warning for hypertension patients.
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Affiliation(s)
- Jiaqi Liu
- 1. The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - James Ma
- 3. College of Business, University of Colorado, Colorado Springs, CO, USA
| | - Jiaojiao Wang
- 1. The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Daniel Dajun Zeng
- 1. The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Hongbin Song
- 4. Institute of Disease Control and Prevention, Academy of Military Medical Sciences, Beijing, China
| | - Ligui Wang
- 4. Institute of Disease Control and Prevention, Academy of Military Medical Sciences, Beijing, China
| | - Zhidong Cao
- 1. The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China;; 2. Cloud Computing Center, Chinese Academy of Sciences, Dongguan, China
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Ogah OS, Sliwa K, Akinyemi JO, Falase AO, Stewart S. Hypertensive heart failure in Nigerian Africans: insights from the Abeokuta Heart Failure Registry. J Clin Hypertens (Greenwich) 2015; 17:263-72. [PMID: 25688932 DOI: 10.1111/jch.12496] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/11/2014] [Accepted: 11/13/2014] [Indexed: 11/30/2022]
Abstract
Data from the Abeokuta Heart Failure Registry were used to determine the clinical characteristics, mode of treatment, and short- and medium-term outcomes of patients with hypertensive heart failure. A total of 320 patients were consecutively studied, comprising 184 men (57.5%) and 136 women (42.5%) aged 58.4±12.4 and 60.6±14.5 years, respectively. Most patients (80%) presented with New York Heart Association functional class III or IV and around one third (35%) had preserved systolic function. Median hospital stay was 9 days (interquartile range 5-21) while intra-hospital mortality was 3.4%. The 30-day, 90-day, and 180-day mortality rates were 0.9% (95% confidence interval, -0.2 to 3.5), 3.5% (95% confidence interval, -1.7 to 7.3), and 11.7% (95% confidence interval, -7.8 to 17.5), respectively. In a multiple logistic regression analysis, only serum creatinine was an independent predictor of mortality at 180 days (adjusted odds ratio, 1.76; 95% confidence interval, -1.17 to 2.64). Hypertension is the most common etiological risk factor for heart failure in Nigeria. Most patients present in the fourth decade of life with severe heart failure and secondary valvular dysfunction and significant in-hospital mortality.
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Affiliation(s)
- Okechukwu S Ogah
- Division of Cardiology, Department of Medicine, University College Hospital, Ibadan, Nigeria; Soweto Cardiovascular Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg, South Africa
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Dzudie A, Milo O, Edwards C, Cotter G, Davison BA, Damasceno A, Mayosi BM, Mondo C, Ogah O, Ojji D, Sani MU, Sliwa K. Prognostic significance of ECG abnormalities for mortality risk in acute heart failure: insight from the Sub-Saharan Africa Survey of Heart Failure (THESUS-HF). J Card Fail 2013; 20:45-52. [PMID: 24269854 DOI: 10.1016/j.cardfail.2013.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 11/05/2013] [Accepted: 11/12/2013] [Indexed: 01/24/2023]
Abstract
OBJECTIVE The aim of this study was to assess the predictive utility of 12-lead electrocardiogram (ECG) abnormalities among Africans with acute heart failure (HF). METHODS AND RESULTS We used the Sub-Saharan Africa Survey of Heart Failure, a multicenter prospective cohort study of 1,006 acute HF patients, and regression models to relate baseline ECG findings to all-cause mortality and readmission during a 6-month follow-up period. Of 814 ECGs available, 523 (49.0% male) were obtained within 15 days of admission, among which 97.7% showed abnormalities. Mean age was 52.0 years and median follow-up was 180 days, with 77 deaths (Kaplan-Meier 17.5%) through day 180 and 63 patients with death or readmission to day 60. QRS width, QT duration, bundle branch block, and ischemic changes were not associated with outcomes. Increasing ventricular rate was associated with increasing risk of both outcomes (hazard ratio [HR] 1.07 per 5 beats/min increase for 60-day death or readmission, 95% confidence interval [CI] 1.02-1.12; P = .0047), and the presence of sinus rhythm was associated with lower risk (HR 0.58, 95% CI 0.34-0.97; P = .0385). There was a strong association between survival and heart rate in patients in sinus rhythm, with heart rate >119 beats/min conveying the worst mortality risk. CONCLUSIONS ECG abnormalities are almost universal among Africans with acute HF, which may add to the immediate diagnosis of patients presenting with dyspnea. Although some ECG findings have prognostic value for risk of adverse outcomes, most of them are nonspecific and add little to the risk stratification of these patients.
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Affiliation(s)
- Anastase Dzudie
- Douala General Hospital, Douala, and Buea Faculty of Health Sciences, Buea, Cameroon; Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | | | | | | | | | - Bongani M Mayosi
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa
| | | | - Okechukwu Ogah
- Division of Cardiovascular Medicine, Department of Medicine, University College Hospital, Ibadan, Nigeria
| | - Dike Ojji
- Cardiology Unit, Department of Medicine, University of Abuja Teaching Hospital, Abuja, Nigeria
| | - Mahmoud U Sani
- Department of Medicine, Bayero University Kano/Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Karen Sliwa
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; Soweto Cardiovascular Research Unit, Chris Hani Baragwanath Hospital, University of the Witwatersrand, Johannesburg, South Africa; Hatter Institute for Cardiovascular Research in Africa and Institute of Infectious Disease and Molecular Medicine, Cape Town, South Africa.
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Liu C, Zhao Q, Zhen Y, Gao Y, Tian L, Wang L, Ji L, Liu G, Ji Z, Liu K. Prednisone in Uric Acid Lowering in Symptomatic Heart Failure Patients With Hyperuricemia (PUSH-PATH) Study. Can J Cardiol 2013; 29:1048-54. [DOI: 10.1016/j.cjca.2012.11.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 11/13/2012] [Accepted: 11/13/2012] [Indexed: 11/30/2022] Open
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Hueskes BAA, Willems FF, Leen AC, Ninaber PA, Westra R, Mantel-Teeuwisse AK, Janssens HJEM, van de Lisdonk EH, Roovers EA, Janssen M. A case-control study of determinants for the occurrence of gouty arthritis in heart failure patients. Eur J Heart Fail 2012; 14:916-21. [PMID: 22723658 DOI: 10.1093/eurjhf/hfs086] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
AIMS Gouty arthritis is a frequent and disabling complication in heart failure patients. This study aimed to investigate which factors are associated with the occurrence of gouty arthritis in these patients. METHODS AND RESULTS A case-control study was performed in heart failure patients (February 2007 to October 2009). Cases were defined as patients with gouty arthritis. Factors that are possibly associated with gouty arthritis and/or heart failure were evaluated. Echocardiographic dimensions and laboratory values including glomerular filtration rate (GFR) and fractional excretion of uric acid (FEUA) were measured. Logistic regression analysis was used to determine crude and adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for possibly associated factors. In total, 188 patients (59 with gouty arthritis) were included. Spironolactone use was associated with a decreased occurrence of gouty arthritis (OR 0.32, 95% CI 0.13-0.77). Independently associated with an increased occurrence of gouty arthritis were hypertensive heart failure (OR 3.6, 95% CI 1.6-8.2), New York Heart Association (NYHA) class III/IV (OR 4.5, 95% CI 1.8-11.0), lower GFR (P < 0.001), and FEUA <4% (OR 3.3, 95% CI 1.4-7.9). Among the four age/gender groups, the strongest association with gouty arthritis was found in men <65 years. CONCLUSION Our identification of factors that are associated with the occurrence of gouty arthritis makes it possible to develop strategies to improve further the quality of life in heart failure patients. The possible decreased occurrence of gouty arthritis in spironolactone users has to be confirmed in prospective studies.
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Echouffo-Tcheugui JB, Kengne AP. Chronic non-communicable diseases in Cameroon - burden, determinants and current policies. Global Health 2011; 7:44. [PMID: 22112686 PMCID: PMC3251529 DOI: 10.1186/1744-8603-7-44] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Accepted: 11/23/2011] [Indexed: 11/10/2022] Open
Abstract
Cameroon is experiencing an increase in the burden of chronic non-communicable diseases (NCDs), which accounted for 43% of all deaths in 2002. This article reviews the published literature to critically evaluate the evidence on the frequency, determinants and consequences of NCDs in Cameroon, and to identify research, intervention and policy gaps. The rising trends in NCDs have been documented for hypertension and diabetes, with a 2-5 and a 10-fold increase in their respective prevalence between 1994 and 2003. Magnitudes are much higher in urban settings, where increasing prevalence of overweight/obesity (by 54-82%) was observed over the same period. These changes largely result from the adoption of unfavorable eating habits, physical inactivity, and a probable increasing tobacco use. These behavioral changes are driven by the economic development and social mobility, which are part of the epidemiologic transition. There is still a dearth of information on chronic respiratory diseases and cancers, as well as on all NDCs and related risk factors in children and adolescents. More nationally representative data is needed to tract risk factors and consequences of NCDs. These conditions are increasingly been recognized as a priority, mainly through locally generated evidence. Thus, national-level prevention and control programs for chronic diseases (mainly diabetes and hypertension) have been established. However, the monitoring and evaluation of these programs is necessary. Budgetary allocations data by the ministry of health would be helpful, to evaluate the investment in NCDs prevention and control. Establishing more effective national-level tobacco control measures and food policies, as well as campaigns to promote healthy diets, physical activity and tobacco cessation would probably contribute to reducing the burden of NCDs.
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Affiliation(s)
- Justin B Echouffo-Tcheugui
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.
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Kengne AP, Ntyintyane LM, Mayosi BM. A systematic overview of prospective cohort studies of cardiovascular disease in sub-Saharan Africa. Cardiovasc J Afr 2011; 23:103-12. [PMID: 21901226 PMCID: PMC3734756 DOI: 10.5830/cvja-2011-042] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2010] [Accepted: 08/15/2011] [Indexed: 11/18/2022] Open
Abstract
Background Cardiovascular diseases (CVDs) are becoming increasingly significant in sub-Saharan Africa (SSA). Reliable measures of the contribution of major determinants are essential for informing health services and policy solutions. Objective To perform a systematic review of all longitudinal studies of CVDs and related risk factors that have been conducted in SSA. Data source We searched electronic databases from 1966 to October 2009. Published studies were retrieved from PubMed and Africa EBSCO. Reference lists of identified articles were scanned for additional publications. Study selection Any longitudinal study with data collection at baseline on major cardiovascular risk factors or CVD, including 30 or more participants, and with at least six months of follow up were included. Data extraction Data were extracted on the country of study, year of inception, baseline evaluation, primary focus of the study, outcomes, and number of participants at baseline and final evaluation. Results Eighty-one publications relating to 41 studies from 11 SSA countries with a wide range of participants were included. Twenty-two were historical/prospective hospital-based studies. These studies focused on risk factors, particularly diabetes mellitus and hypertension, or CVD including stroke, heart failure and rheumatic heart disease. The rate of participants followed through the whole duration of studies was 72% (64–80%), with a significant heterogeneity between studies (for heterogeneity, p < 0.001). Outcomes monitored during follow up included trajectories of risk markers and mortality. Conclusions Well-designed prospective cohort studies are needed to inform and update our knowledge regarding the epidemiology CVDs and their interactions with known risk factors in the context of common infectious diseases in this region.
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Affiliation(s)
- Andre Pascal Kengne
- The George Institute for International Health, University of Sydney, Sydney, Australia
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Tantchou Tchoumi JC, Ambassa JC, Kingue S, Giamberti A, Cirri S, Frigiola A, Butera G. Occurrence, aetiology and challenges in the management of congestive heart failure in sub-Saharan Africa: experience of the Cardiac Centre in Shisong, Cameroon. Pan Afr Med J 2011; 8:11. [PMID: 22121420 PMCID: PMC3201578 DOI: 10.4314/pamj.v8i1.71059] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Accepted: 01/08/2011] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The aim of the study was to investigate the occurrence, the aetiology and the management of congestive heart failure in the cardiac centre of the St. Elizabeth catholic general hospital Shisong in Cameroon. METHODS Between November 2002 and November 2008, a population of 8121 patients was consulted in the referral cardiac centre of St. Elizabeth Catholic General Hospital. Of these patients, 462 were diagnosed with congestive heart failure according to the modified Framingham criteria for the diagnosis of heart failure. Complementary investigations used to confirm and establish the aetiology of the disease were the chest X-ray, electrocardiography, bi-dimensional Doppler echocardiography. RESULTS The results showed that the occurrence of congestive heart failure in our centre was 5.7%. Congestive heart failure was diagnosed in 198 females and 264 males, aged between 8 and 86 years old (42.5±18 years old). Post rheumatic valvulopathies (14.6%) and congenital heart diseases (1.9%) were the first aetiologic factor of congestive heart failure in the young, meanwhile cardiomyopathies (8.3%) in elderly followed by hypertensive cardiomyopathy (4.4%). Congestive heart failure was also seen in adults with congenital heart diseases in 0.01%. In this zone of Cameroon, we discovered that HIV cardiomyopathy (1.6%) and Cor pulmonale (8%) were represented, aetiological factors not mentioned in previous studies conducted in urban areas of Cameroon. The mean duration of hospital stay for the compensation treatment was thirteen days, ranging between 7 and 21 days), the mortality being 9.2%. All the medications recommended for the treatment of congestive heart failure are available in our centre but many patients are not compliant to the therapy or cannot afford them. Financial limitation is causing the exacerbation of the disease and premature death. CONCLUSION Our data show a high incidence of congestive heart failure mainly due to post rheumatic valvulopathies in young patients in our centre. National program to fight against rheumatic fever and complications are of great urgency in our country. The compensation treatment of congestive heart failure is challenging in our milieu, characterized by poor compliance and financial limitations.
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Abstract
BACKGROUND Congestive cardiac failure (CCF) has emerged as a major public health problem worldwide and imposes an escalating burden on the health care system. OBJECTIVE To determine the causes and mortality rate of CCF in the University of Port Harcourt Teaching Hospital (UPTH), south Nigeria, over a five-year period from January 2001 to December 2005. METHODS A retrospective study of CCF cases were identified from the admission and discharge register of the medical wards of UPTH and the case notes were retrieved from the medical records department and analyzed. RESULTS There were 423 patients: 242 males and 181 females. Their ages ranged from 18 to 100 years with a mean of 54.4 +/- 17.3. The commonest causes of CCF were hypertension (56.3%) and cardiomyopathy (12.3%). Chronic renal failure, rheumatic heart disease, and ischemic heart disease accounted for 7.8%, 4.3%, and 0.2% of CCF, respectively. Peripartum heart disease was rare despite being commonly reported in northern Nigerian females. Eighteen patients died from various complications with a mortality rate of 4.3%. CONCLUSION The burden of CCF in the Niger Delta is mainly attributed to hypertension. Efforts should be geared towards hypertension awareness, detection, treatment, and prevention in the region.
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Affiliation(s)
- Arthur C Onwuchekwa
- Department of Internal Medicine, University of Port Harcourt Teaching Hospital, Port Harcourt, Rivers State, Nigeria.
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24
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Abstract
Heart failure has emerged as a dominant form of cardiovascular disease in Africa, and has great social and economic relevance owing to its high prevalence, mortality and impact on young, economically active individuals. The causes of heart failure in Africans remain largely nonischemic. Hypertension, cardiomyopathy, rheumatic heart disease, chronic lung disease and pericardial disease are the main contributors to the etiology of cardiac failure in sub-Saharan Africa, accounting for over 90% of cases. Hypertensive heart disease complications occur more frequently in Africans and the majority of affected patients are younger. Endemic cardiomyopathies include dilated cardiomyopathy, peripartum cardiomyopathy and endomyocardial fibrosis. Nonendemic cardiomyopathies apparently occur with the same frequency as in other parts of the world, and include hypertrophic cardiomyopathy and arrhythmogenic right ventricular dysplasia/cardiomyopathy. Coronary artery disease and its complications remain uncommon in Africa, but the situation is changing due to modifications in lifestyle, risk-prone behavior, diet, cultural attitudes and other consequences of rapid urbanization. As the prevalence of heart failure is expected to rise substantially in sub-Saharan Africa, the authors call for population-based studies and registries of the epidemiology of heart failure in Africans and the urgent study of interventions that will decrease morbidity and mortality from the causes of heart failure, with a focus both on nonischemic and ischemic risk factors.
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Affiliation(s)
- Ntobeko B A Ntusi
- Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa.
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25
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Awah PK, Unwin NC, Phillimore PR. Diabetes Mellitus: Indigenous naming, indigenous diagnosis and self-management in an African setting: the example from Cameroon. BMC Endocr Disord 2009; 9:5. [PMID: 19224650 PMCID: PMC2661081 DOI: 10.1186/1472-6823-9-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2008] [Accepted: 02/19/2009] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND The objective was to examine how the indigenous naming, indigenous self-diagnosis and management of diabetes evolved with awareness in order to develop a socially oriented theoretical model for its care. METHODS The data was collected through a one-year extended participant observation in Bafut, a rural health district of Cameroon. The sample consisted of 72 participants in a rural health district of Cameroon (men and women) with type 2 diabetes. We used participant observation to collect data through focus group discussions, in depth interviews and fieldwork conversations. The method of analysis entailed a thick description, thematic analysis entailing constant comparison within and across FGD and across individual participants and content analysis. RESULTS The core concepts identified were the evolution of names for diabetes and the indigenous diagnostic and self-management procedures. Participants fell into one of two naming typologies: (a) Naming excluding any signs and symptoms of diabetes; (b) naming including signs and symptoms of diabetes. Participants fell into two typologies of diagnostic procedures: (a) those that use indigenous diagnostic procedures for monitoring and controlling diabetes outcomes and b) those that had initially used it only for diagnosis and continued to use them for self management. These typologies varied according to how participants' awareness evolved and the impact on self-diagnosis and management. CONCLUSION The evolution of names for diabetes was an important factor that influenced the subsequent self-diagnosis and management of diabetes in both traditional and modern biomedical settings.
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Affiliation(s)
- Paschal K Awah
- HoPiT Research Group, PO Box 8046, Yaounde, Cameroon
- Department of Anthropology, Faculty of Arts, Letters and Social Sciences, University of Yaounde I, Yaounde, Cameroon
- Centre for Population Studies and Health Promotion, PO Box 7535, Yaounde, Cameroon
| | - Nigel C Unwin
- Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle, NE2 4HH, UK
| | - Peter R Phillimore
- Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle, NE2 4HH, UK
- School of Geography, Politics and Sociology, Faculty of Law and Social Sciences, Newcastle University, Newcastle, NE1 7RU, UK
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