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Jingi AM, Nkoke C, Noubiap JJ, Teuwafeu D, Mambap AT, Nkouonlack C, Gobina R, Njume D, Dzudie A, Ashuntantang G. Prevalence, correlates and in-hospital outcomes of kidney dysfunction in hospitalized patients with heart failure in Buea-Cameroon. BMC Nephrol 2022; 23:8. [PMID: 34979971 PMCID: PMC8722319 DOI: 10.1186/s12882-021-02641-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 12/17/2021] [Indexed: 11/21/2022] Open
Abstract
Background Kidney dysfunction is common in patients with heart failure (HF) and has been associated with poor outcomes. This study aimed to determine the prevalence, correlates, and prognosis of kidney dysfunction in patients with HF in Cameroon, an understudied population. Methods We conducted a cross-sectional study in consecutive patients hospitalized with HF between June 2016 and November 2017 in the Buea Regional Hospital, Cameroon. Kidney dysfunction was defined as an estimated glomerular filtration rate < 60 ml/min/1.73m2. Prognostic outcomes included death and prolonged hospital stay (> 7 days). We also performed a sensitivity analysis excluding racial considerations. Results Seventy four patients (86.1% of those eligible) were included. Their median age was 60 (interquartile range: 44–72) years and 46.0% (n = 34) were males. Half of patients (n = 37) had kidney dysfunction. Correlates of kidney dysfunction included previous diagnosis of HF (adjusted odds ratio [aOR]4.3, 95% CI: 1.1–17.5) and left ventricular hypertrophy (aOR3.4, 95% CI: 1.1–9.9). Thirty-six (48.9%) had prolonged hospital stay, and seven (9.5%) patients died in hospital. Kidney dysfunction was not associated with in-hospital death (aOR 0.4, 95% CI: 0.1–2) nor prolonged hospital stay (aOR 2.04, 0.8–5.3). In sensitivity analysis (excluding racial consideration), factors associated with Kidney dysfunction in HF were; anemia (aOR: 3.0, 95% CI: 1.1–8.5), chronic heart failure (aOR: 4.7, 95% CI: 0.9–24.6), heart rate on admission < 90 bpm (aOR: 3.4, 95% CI: 1.1–9.1), left atrial dilation (aOR: 3.2, 95% CI: 1.04–10), and hypertensive heart disease (aOR: 3.1, 95% CI: 1.2–8.4). Kidney dysfunction in HF was associated with hospital stay > 7 days (OR: 2.6, 95% CI: 1–6.8). Conclusion Moderate-to-severe kidney dysfunction was seen in half of the patients hospitalized with HF in our setting, and this was associated with a previous diagnosis of HF and left ventricular hypertrophy. Kidney dysfunction might not be the main driver of poor HF outcomes in this population. In sensitivity analysis, this was associated with anemia, chronic heart failure, heart rate on admission less than 90 bpm, left atrial dilatation, and hypertensive heart disease. Kidney dysfunction was associated with hospital stay > 7 days. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-021-02641-2.
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Affiliation(s)
| | - Clovis Nkoke
- Buea Regional Hospital, Buea, Cameroon. .,Clinical Research Education, Networking and Consultancy (CRENC), Douala, Cameroon.
| | - Jean Jacques Noubiap
- Center for Heart Rhythm Disorders, University of Adelaide, Adelaide, SA, Australia
| | - Denis Teuwafeu
- Buea Regional Hospital, Buea, Cameroon.,Faculty of Health Sciences, University of Buea, Buea, Cameroon
| | - Alex T Mambap
- Faculty of Health Sciences, University of Bamenda, Bamenda, Cameroon
| | - Cyrille Nkouonlack
- Buea Regional Hospital, Buea, Cameroon.,Faculty of Health Sciences, University of Buea, Buea, Cameroon
| | | | - Debimeh Njume
- Faculty of Medicine and Biomedical Sciences, University of Yaounde 1, Yaoundé, Cameroon
| | - Anastase Dzudie
- Clinical Research Education, Networking and Consultancy (CRENC), Douala, Cameroon.,Faculty of Medicine and Biomedical Sciences, University of Yaounde 1, Yaoundé, Cameroon
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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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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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Manafe N, Matimbe RN, Daniel J, Lecour S, Sliwa K, Mocumbi AO. Hypertension in a resource-limited setting: Poor Outcomes on Short-term Follow-up in an Urban Hospital in Maputo, Mozambique. J Clin Hypertens (Greenwich) 2019; 21:1831-1840. [PMID: 31769184 PMCID: PMC8030297 DOI: 10.1111/jch.13732] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 10/16/2019] [Accepted: 10/23/2019] [Indexed: 11/29/2022]
Abstract
Mozambique has low levels of detection, treatment, and control of hypertension. However, data on target organ damage and clinical outcomes are lacking. The authors aimed at characterizing the clinical profile, pattern of target organ damage, and short-term outcomes of patients referred to a first referral urban hospital in a low-income setting in Africa. We conducted a prospective descriptive cohort study from February 2016 to May 2017 in Maputo, Mozambique. Adult patients with systolic and diastolic blood pressure ≥180 mm Hg and/or ≥110 mm Hg, respectively, or any systolic blood pressure above 140 mm Hg and/or diastolic blood pressure above 90 mm Hg in the presence of target organ damage (with or without antihypertensive treatment) were submitted to detailed physical examination, funduscopy, laboratory profile, electrocardiography, and echocardiography. Six months after the occurrence of complications (stroke, heart failure, and renal failure), hospital admission and death were assessed. Overall, 116 hypertensive patients were recruited (mean age 57.5 ± 12.8 years old; 111[95.7%] black; 81[70%] female) of which 79 had severe hypertension. The baseline mean values recorded for systolic and diastolic blood pressure were 192.3 ± 23.6 and 104.2 ± 15.2 mm Hg, respectively. Most patients (93; 80.2%) were on antihypertensive treatment. Patients' risk profile revealed dyslipidemia, obesity, and diabetes in 59(54.1%), 48(42.5%), and 23(19.8%), respectively. Target organ damage was found in 111 patients. The commonest being left atrial enlargement 91(84.5%), left ventricular hypertrophy 57(50.4%), hypertensive retinopathy 30(26.3%), and chronic kidney disease 27(23.3%). Major events during 6-month follow-up were hospitalizations in 10.3% and death in 8.6% of the patients. Worsening of target organ damage occurred in 10 patients: four stroke, two heart failure, and four renal damage. Patients with severe hypertension and target organ damage were young with high-risk profile, low hypertension control, and high occurrence of complications during short-term follow-up. Efforts to improve high blood pressure control are needed to reduce premature mortality in this highly endemic poor setting.
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Affiliation(s)
- Naisa Manafe
- Instituto Nacional de SaudeMaputoMozambique
- Department of Medicine and CardiologyFaculty of Health SciencesUniversity of Cape TownCape TownSouth Africa
| | | | | | - Sandrine Lecour
- Department of Medicine and CardiologyFaculty of Health SciencesUniversity of Cape TownCape TownSouth Africa
| | - Karen Sliwa
- Department of Medicine and CardiologyFaculty of Health SciencesUniversity of Cape TownCape TownSouth Africa
| | - Ana Olga Mocumbi
- Instituto Nacional de SaudeMaputoMozambique
- Universidade Eduardo MondlaneMaputoMozambique
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Mahmoud US. Prevalence, clinical characteristics and outcomes of valvular atrial fibrillation in a cohort of African patients with acute heart failure: insights from the THESUS-HF registry. Cardiovasc J Afr 2019; 29:139-145. [PMID: 30067272 PMCID: PMC6107722 DOI: 10.5830/cvja-2017-051] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 11/19/2017] [Indexed: 01/19/2023] Open
Abstract
INTRODUCTION Rheumatic heart disease (RHD) is the commonest cause of valvular heart disease and a common cause of heart failure in sub-Saharan Africa (SSA). Atrial fibrillation (AF) complicates RHD, precipitates and worsens heart failure and cause unfavourable outcomes. We set out to describe the prevalence, clinical characteristics and outcomes of valvular atrial fibrillation in a cohort of African patients with acute heart failure (AHF). METHODS The sub-Saharan Africa Survey of Heart Failure (THESUS-HF) was a prospective, observational survey of AHF in nine countries. We collected demographic data, medical history and signs and symptoms of HF. Electrocardiograms (ECGs) were done in a standard fashion. AF was defined as either a history of AF or AF on the admission ECG. Using Cox regression models, we examined the associations of AF with all-cause death over 180 days and a composite endpoint of all-cause death or readmission over 60 days. RESULTS There were 1 006 patients in the registry. The mean age was 52.3 years and 50.8% were women. AF was present in 209 (20.8%) cases. Those with AF were older (57.1 vs 51.1 years), more likely to be female (57.4 vs 49.1%), had significantly lower systolic (125 vs 132 mmHg) and diastolic (81 vs 85 mmHg) blood pressure (BP), and higher heart rates (109 vs 102 bpm). Ninety-two (44%) AF patients had valvular heart disease. The presence of AF was not associated with the primary endpoints, but having valvular AF predicted death within 180 days. CONCLUSIONS AF was present in one-fifth of African patients with AHF. Almost half of the AF patients had valvular disease (RHD) and were significantly younger and at risk of dying within six months. It is important to identify these high-risk patients and prioritise their management, especially in SSA where resources are limited.
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Affiliation(s)
- U Sani Mahmoud
- Department of Medicine, Bayero University and AminuKano Teaching Hospital, Kano, Nigeria
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6
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Soltani MH, Jamshir M, Taghavi S, Golpira R, Nasiri M, Amin A, Abbaszade Marzbali N, Naderi N. Echocardiographic predictors of worsening renal function in acute heart failure: observations from the RASHF registry. ESC Heart Fail 2018; 5:1060-1068. [PMID: 30334369 PMCID: PMC6300822 DOI: 10.1002/ehf2.12358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 08/19/2018] [Accepted: 08/30/2018] [Indexed: 01/26/2023] Open
Abstract
Aims Echocardiography is known as the most useful diagnostic test in the assessment of patients with heart failure (HF), and the prognostic significance of echocardiographic findings in HF is well known. In this report, we aim to present the prognostic significance of a limited set of echocardiographic parameters obtained within 24 h of admission of patients enrolled in the Rajaie Acute Systolic Heart Failure registry. Methods and results A total of 230 patients with the diagnosis of acute systolic HF (left ventricular ejection fraction ≤ 35%) were enrolled into the study. Transthoracic echocardiography was performed for all study population within 24 h of admission. The primary endpoint of the study was the occurrence of worsening renal function (WRF) during the hospitalization course.Acquiring data of transthoracic echocardiography within 24 h of admission was feasible in all study participants. The median (inter‐quartile range) of left ventricular ejection fraction was 20% (15–23%). Severe right ventricular dysfunction was observed in 21.5% of patients. The grade of inferior vena cava collapse and right ventricular systolic dysfunction were associated with WRF. In multivariable analysis, right ventricular systolic dysfunction was among the independent predictors of WRF [β = 0.8, P = 0.01, odds ratio (OR) = 2.4 (1.2–4.9)] and in‐hospital mortality [β = 0.6, P = 0.04, OR = 1.5 (0.5–4.6)]. Conclusions Echocardiographic parameters are useful for baseline assessment and provide additional information besides other clinical variables for prognostication. Right ventricular dysfunction is the most important risk factor in developing WRF and in‐hospital mortality in patients with acute HF.
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Affiliation(s)
| | - Mohsen Jamshir
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Sepideh Taghavi
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Golpira
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohsen Nasiri
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ahmad Amin
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Nasim Naderi
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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Jhund PS. Geographic variation in heart failure-a matter of celebration or condemnation? Eur J Heart Fail 2016; 18:1329-1330. [PMID: 27813303 DOI: 10.1002/ejhf.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 07/30/2016] [Accepted: 08/01/2016] [Indexed: 11/08/2022] Open
Affiliation(s)
- Pardeep S Jhund
- BHF Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK.
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