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Saputri VL, Yogibuana V. Isolated rheumatic tricuspid valve regurgitation: it is only rare not just a myth: rare case report. Egypt Heart J 2024; 76:56. [PMID: 38713335 PMCID: PMC11076420 DOI: 10.1186/s43044-024-00487-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/29/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND Isolated rheumatic tricuspid regurgitation (IRTR) is a rare condition that can manifest as right heart failure (RHF) and pulmonary hypertension (PH) symptoms. Diagnosing and treating IRTR in cases of latent RHD can be a challenge and crucial for future research to establish new guidelines for echocardiography in RHD that focus not only on the mitral and aorta but also the tricuspid valve. CASE PRESENTATION A young female patient with clinical symptoms of RHF suspected IRTR due to latent RHD from echocardiography. Echocardiography revealed significant thickening and calcification of all tricuspid valve (TV) leaflets, with partial prolapse posterior leaflet and severe tricuspid regurgitation (TR) with a high probability of PH, no significant anatomical and functional abnormality pulmonary valve (PV), mitral valve (MV), and aortic valve (AV). She was administered daily doses of Ramipril, bisoprolol, spironolactone, and furosemide. Although she received therapy, she persisted in suffering dyspnea when doing mild physical activity (NYHA functional class III). She was admitted to the surgical conference, due to our center's limitation of percutaneous intervention for valve replacement, and she was approved to undergo tricuspid valve replacement (TVR) surgery. CONCLUSIONS Echocardiography plays a crucial role in identifying latent RHD. Isolated rheumatic TR shows echocardiographic results similar to rheumatic mitral regurgitation, except for the presence of a high-velocity jet. Diuretics temporarily slow symptoms, but disease progression remains uncertain. TV surgery is effective for severe symptoms, but isolated TVR is rare and has a poor prognosis.
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Affiliation(s)
- Vemmy Lian Saputri
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Dr. Saiful Anwar General Hospital, Universitas Brawijaya, Jl. Jaksa Agung Suprapto No. 2, Malang, East Java, 65112, Indonesia
| | - Valerinna Yogibuana
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Dr. Saiful Anwar General Hospital, Universitas Brawijaya, Jl. Jaksa Agung Suprapto No. 2, Malang, East Java, 65112, Indonesia.
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Silvilairat S, Sornwai A, Sethasathien S, Saengsin K, Makonkawkeyoon K, Sittiwangkul R, Pongprot Y. Outcome following acute and recurrent rheumatic fever. Paediatr Int Child Health 2024; 44:13-17. [PMID: 38363075 DOI: 10.1080/20469047.2024.2313330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/25/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Rheumatic carditis is the leading cause of permanent disability caused by damage of the cardiac valve. This study aimed to determine the outcome and predictors of valve surgery in patients with acute rheumatic fever (ARF) and recurrent rheumatic fever (RRF). METHODS This was a retrospective study of patients diagnosed with ARF and RRF between 2006 and 2021. The predictors of valve surgery were analysed using multivariable Cox proportional regression. RESULTS The median age of patients with ARF and RRF (n=92) was 11 years (range 5-18). Seventeen patients (18%) were diagnosed with RRF. The most common presenting symptoms included clinical carditis (87%), heart failure (HF) (63%), fever (49%) and polyarthralgia (24%). Patients with moderate-to-severe rheumatic carditis (88%) were given prednisolone. After treatment, the severity of valvular regurgitation was reduced in 52 patients (59%). Twenty-three patients (25%) underwent valve surgery. The incidence of HF, RRF, severe mitral regurgitation on presentation, left ventricular enlargement and pulmonary hypertension was greater in the surgical group than in the non-surgical group. Recurrent rheumatic fever (hazard ratio 7.9, 95% CI 1.9-33.1), tricuspid regurgitation (TR) gradient ≥ 42 mmHg (HR 6.3, 95%CI 1.1-38.7) and left ventricular end-diastolic dimension (LVEDD) ≥6 cm (HR 8.7, 95% CI 2.1-35.9) were predictors of valve surgery (multivariable Cox proportional regression analysis). CONCLUSION Clinical carditis was the most common presenting symptom in patients with ARF and RRF. The majority of patients responded positively to prednisolone. These findings highlight the predictors of valve surgery following ARF, including RRF, TR gradient ≥ 42 mmHg and LVEDD ≥ 6 cm.Abbreviations: ARF: acute rheumatic fever; CRP: C-reactive protein; ESR: erythrocyte sedimentation rate; GAS: group A beta-haemolytic Streptococcus; HF: heart failure; HR: hazard ratio; LVEDD: left ventricular end-diastolic dimension; MR: mitral regurgitation; RHD: rheumatic heart disease; RRF: recurrent rheumatic fever; TR: tricuspid regurgitation.
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Affiliation(s)
- Suchaya Silvilairat
- Department of Paediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Artit Sornwai
- Department of Paediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Saviga Sethasathien
- Department of Paediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Kwannapas Saengsin
- Department of Paediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Krit Makonkawkeyoon
- Department of Paediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Rekwan Sittiwangkul
- Department of Paediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Yupada Pongprot
- Department of Paediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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Rwebembera J, Marangou J, Mwita JC, Mocumbi AO, Mota C, Okello E, Nascimento B, Thorup L, Beaton A, Kado J, Kaethner A, Kumar RK, Lawrenson J, Marijon E, Mirabel M, Nunes MCP, Piñeiro D, Pinto F, Ralston K, Sable C, Sanyahumbi A, Saxena A, Sliwa K, Steer A, Viali S, Wheaton G, Wilson N, Zühlke L, Reményi B. 2023 World Heart Federation guidelines for the echocardiographic diagnosis of rheumatic heart disease. Nat Rev Cardiol 2024; 21:250-263. [PMID: 37914787 DOI: 10.1038/s41569-023-00940-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/13/2023] [Indexed: 11/03/2023]
Abstract
Rheumatic heart disease (RHD) is an important and preventable cause of morbidity and mortality among children and young adults in low-income and middle-income countries, as well as among certain at-risk populations living in high-income countries. The 2012 World Heart Federation echocardiographic criteria provided a standardized approach for the identification of RHD and facilitated an improvement in early case detection. The 2012 criteria were used to define disease burden in numerous epidemiological studies, but researchers and clinicians have since highlighted limitations that have prompted a revision. In this updated version of the guidelines, we incorporate evidence from a scoping review, an expert panel and end-user feedback and present an approach for active case finding for RHD, including the use of screening and confirmatory criteria. These guidelines also introduce a new stage-based classification for RHD to identify the risk of disease progression. They describe the latest evidence and recommendations on population-based echocardiographic active case finding and risk stratification. Secondary antibiotic prophylaxis, echocardiography equipment and task sharing for RHD active case finding are also discussed. These World Heart Federation 2023 guidelines provide a concise and updated resource for clinical and research applications in RHD-endemic regions.
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Affiliation(s)
| | - James Marangou
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
- Department of Cardiology, Fiona Stanley Hospital, Perth, Western Australia, Australia
| | - Julius Chacha Mwita
- Department of Internal Medicine, University of Botswana and Princess Marina Hospital, Gaborone, Botswana
| | | | - Cleonice Mota
- Departamento de Paediatria, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo, Horizonte, Brazil
- Divisão de Cardiologia Pediátrica e Fetal/Serviço de Cardiologia e Cirurgia Cardiovascular e Serviço de Paediatria, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo, Horizonte, Brazil
| | - Emmy Okello
- Division of Adult Cardiology, Uganda Heart Institute, Kampala, Uganda
| | - Bruno Nascimento
- Departamento de Clínica Médica, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo, Horizonte, Brazil
- Serviço de Cardiologia e Cirurgia Cardiovascular, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo, Horizonte, Brazil
| | - Lene Thorup
- Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Andrea Beaton
- Department of Paediatrics, School of Medicine, University of Cincinnati, Cincinnati, OH, USA
- Division of Cardiology, The Heart Institute, Cincinnati Children's Medical Center, Cincinnati, OH, USA
| | - Joseph Kado
- Wesfarmers Centre of Vaccine and Infectious Diseases, Telethon Kids Institute, Perth, Western Australia, Australia
- School of Medicine, University of Western Australia, Perth, Western Australia, Australia
| | - Alexander Kaethner
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
- NT Cardiac, Darwin, Northern Territory, Australia
| | | | - John Lawrenson
- Paediatric Cardiology Service of the Western Cape, Red Cross War Memorial Children's Hospital and Tygerberg Hospital, Cape Town, South Africa
- Department of Paediatrics and Child Health, Stellenbosch University, Stellenbosch, South Africa
| | - Eloi Marijon
- Division of Cardiology, European Georges Pompidou Hospital, Paris, France
| | | | - Maria Carmo Pereira Nunes
- Departamento de Clínica Médica, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo, Horizonte, Brazil
- Serviço de Cardiologia e Cirurgia Cardiovascular, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo, Horizonte, Brazil
| | - Daniel Piñeiro
- Faculty of Medicine, University of Buenos Aires, Buenos Aires, Argentina
| | - Fausto Pinto
- Cardiology Department, Centro Hospitalar Universitário Lisboa Norte, Centro Académico de Medicina de Lisboa, The Cardiovascular Centre of the University of Lisbon, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | | | - Craig Sable
- Division of Cardiology, Children's National Hospital, Washington, DC, USA
| | - Amy Sanyahumbi
- Baylor College of Medicine, Texas Children's Hospital, Houston, TX, USA
| | - Anita Saxena
- Pt BD Sharma University of Health Sciences, Rohtak, India
| | - Karen Sliwa
- Cape Heart Institute, Department of Medicine and Cardiology, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Andrew Steer
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
- Tropical Diseases Research Group, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
- Department of General Medicine, Royal Children's Hospital, Melbourne, Victoria, Australia
| | | | - Gavin Wheaton
- Women's and Children's Hospital, Adelaide, South Australia, Australia
| | - Nigel Wilson
- Green Lane Paediatric and Congenital Cardiac Services, Starship Hospital, Te Whatu Ora, Auckland, New Zealand
| | - Liesl Zühlke
- South African Medical Research Council, Extramural Research & Internal Portfolio, Cape Town, South Africa
- Division of Paediatric Cardiology, Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
| | - Bo Reményi
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
- NT Cardiac, Darwin, Northern Territory, Australia
- Department of Paediatrics, Royal Darwin Hospital, Darwin, Australia
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4
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Berhanu H, Mekonnen Y, Workicho A, Hassen K, Negeri Z, Sudhakar M, Mitiku S, Mossie A. The prevalence of rheumatic heart disease in Ethiopia: a systematic review and meta-analysis. Trop Dis Travel Med Vaccines 2023; 9:16. [PMID: 37828598 PMCID: PMC10571304 DOI: 10.1186/s40794-023-00192-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 05/10/2023] [Indexed: 10/14/2023] Open
Abstract
Globally, more than 33 million people are living with rheumatic heart disease (RHD). A high prevalence of the disease is observed in people with poor socio-economic status, overcrowding, and low access to medical facilities. Even though different studies have been conducted in different settings, there is no reliable data regarding RHD prevalence. Therefore, the aim of this systematic review and meta-analysis was to estimate the pooled prevalence of RHD in Ethiopia. PubMed/Medline, SCOPUS, HINARI, and Google Scholar databases were used to search for peer-reviewed articles. Articles published in English between the years 1992 and 2022 September were considered. The pooled prevalence of RHD was calculated using a random-effect model at a 95% confidence interval, including the weight of each study. Finally, statistical meta-analysis STATA version 16.0 software was used to calculate the pooled prevalence of RHD.A total of twelve cross-sectional studies were included in the meta-analysis. Individual study prevalence ranges from 0.32 to 32.78%. The pooled prevalence of RHD was 3.19% (95% CI: 1.46-5.56%). The prevalence was higher among the population who visited hospitals at 5.42% (95% CI: 1.09-12.7%) compared to schoolchildren at 0.73% (95% CI: 0.30-1.34%) and community-based studies at 3.83% (95% CI: 3.16-4.55%). Addis Ababa had the lowest prevalence of RHD (0.75% (95% CI: 0.38-1.25%), whereas the highest prevalence was observed in the Amhara region (8.95% (95% CI: 7.21-11.06%). A significant variation in the overall estimated prevalence of RHD was not observed between males and females.Trial registration Protocol registration (PROSPERO): CRD42021251553, Date of registration May 28 2021.
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Affiliation(s)
- Hiwot Berhanu
- Department of Biomedical Sciences, Faculty of Medical Science, Jimma Institute of Health, Jimma University, Jimma, Ethiopia.
| | - Yimer Mekonnen
- Department of Pharmacy, Faculty of Health Sciences, Jimma Institute of Health, Jimma University, Jimma, Ethiopia
| | - Abdulhalik Workicho
- Department of Epidemiology, Institute of Health, Jimma University, P.O.Box 378, Jimma, Ethiopia
| | - Kalkidan Hassen
- Department of Nutrition and Dietetics, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Zenebe Negeri
- Department of Biomedical Sciences, Faculty of Medical Science, Jimma Institute of Health, Jimma University, Jimma, Ethiopia
| | - Morankar Sudhakar
- Department of Health, Behavior and Society, Faculty of Public Health, Ethiopian Evidence Based Health Care CenterInstitute of HealthJimma University, Jimma, Ethiopia
| | - Shimelis Mitiku
- Department of Biomedical Sciences, Faculty of Medical Science, Jimma Institute of Health, Jimma University, Jimma, Ethiopia
| | - Andualem Mossie
- Department of Biomedical Sciences, Faculty of Medical Science, Jimma Institute of Health, Jimma University, Jimma, Ethiopia
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5
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Lumngwena EN, Mokaila D, Aremu O, Katoto PDMC, Blackburn J, Zilla P, Wiysonge CS, Ntusi N. Prevalence and Impact of HIV Infections in Patients with Rheumatic Heart Disease: A Systematic Review and Meta-Analysis. Glob Heart 2023; 18:49. [PMID: 37720311 PMCID: PMC10503531 DOI: 10.5334/gh.1265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 08/22/2023] [Indexed: 09/19/2023] Open
Abstract
Socioeconomic factors such as poor health and poor nutrition in low- and middle-income countries (LMICs) may favour inflammatory reactions, thus contributing to the recurrence of rheumatic fever (RF) and thereby modifying trends in rheumatic heart disease (RHD). Apart from epidemiological studies, studies of HIV infections in RHD patients are limited. This systematic review synthesises data on the prevalence and impact of HIV infections or AIDS on RHD from PubMed, Scopus, Web of Science databases up to April 2021. The outcomes were managed using PRISMA guidelines. Of a total of 15 studies found, 10 were eligible for meta-analyses. Meta-analysis found that 17% (95 % CI 8-33, I2 = 91%) of adults in cardiovascular disease (CVD) cohorts in Southern Africa are HIV positive. The proportion of RHD diagnosed among people living with HIV was 4% (95% CI 2-8, I2 = 79%) for adults but lower [2% (95% CI 1-4, I2 = 87%)] among perinatally infected children. Despite limited reporting, HIV-infected patients with RHD are prone to other infections that may enhance cardiac complications due to poor immunological control. PROSPERO registration number: CRD42021237046.
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Affiliation(s)
- Evelyn N. Lumngwena
- School of Clinical Medicine, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, ZA
- Centre for the Study of Emerging and Re-emerging Infections (CREMER), Institute for Medical Research and Medicinal Plant Studies (IMPM), Ministry of Scientific Research and Innovation, CM
| | - Dipolelo Mokaila
- Cape Heart Institutes, Department of Medicine, Faculty of Health Sciences, University of Cape Town, ZA
- Division of Cardiology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, ZA
| | - Olukayode Aremu
- Cape Heart Institutes, Department of Medicine, Faculty of Health Sciences, University of Cape Town, ZA
- Division of Cardiology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, ZA
| | - Patrick DMC Katoto
- Cape Heart Institutes, Department of Medicine, Faculty of Health Sciences, University of Cape Town, ZA
- Cochrane South Africa, South African Medical Research Council, Francie van Zijl Drive, Parow Valley, 7501, Cape Town, ZA
- Centre for Tropical Diseases and Global Health, Catholic University of Bukavu, Democratic Republic of Congo
| | - Jonathan Blackburn
- Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, ZA
- Department of Integrative Biomedical Sciences, University of Cape Town, ZA
| | - Peter Zilla
- Christiaan Barnard Division of Cardiothoracic Surgery, University of Cape Town, ZA
| | - Charles Shey Wiysonge
- Cochrane South Africa, South African Medical Research Council, Francie van Zijl Drive, Parow Valley, 7501, Cape Town, ZA
- World Health Organization Regional Office for Africa, Citédu Djoué, Brazzaville, CG
| | - Ntobeko Ntusi
- Cape Heart Institutes, Department of Medicine, Faculty of Health Sciences, University of Cape Town, ZA
- Division of Cardiology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, ZA
- Cape Universities Body Imaging Centre, Faculty of Health Sciences, University of Cape Town, Cape Town, ZA
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Rwebembera J, Nascimento BR, Minja NW, de Loizaga S, Aliku T, dos Santos LPA, Galdino BF, Corte LS, Silva VR, Chang AY, Dutra WO, Nunes MCP, Beaton AZ. Recent Advances in the Rheumatic Fever and Rheumatic Heart Disease Continuum. Pathogens 2022; 11:179. [PMID: 35215123 PMCID: PMC8878614 DOI: 10.3390/pathogens11020179] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/14/2022] [Accepted: 01/24/2022] [Indexed: 12/13/2022] Open
Abstract
Nearly a century after rheumatic fever (RF) and rheumatic heart disease (RHD) was eradicated from the developed world, the disease remains endemic in many low- and middle-income countries (LMICs), with grim health and socioeconomic impacts. The neglect of RHD which persisted for a semi-centennial was further driven by competing infectious diseases, particularly the human immunodeficiency virus (HIV) pandemic. However, over the last two-decades, slowly at first but with building momentum, there has been a resurgence of interest in RF/RHD. In this narrative review, we present the advances that have been made in the RF/RHD continuum over the past two decades since the re-awakening of interest, with a more concise focus on the last decade's achievements. Such primary advances include understanding the genetic predisposition to RHD, group A Streptococcus (GAS) vaccine development, and improved diagnostic strategies for GAS pharyngitis. Echocardiographic screening for RHD has been a major advance which has unearthed the prevailing high burden of RHD and the recent demonstration of benefit of secondary antibiotic prophylaxis on halting progression of latent RHD is a major step forward. Multiple befitting advances in tertiary management of RHD have also been realized. Finally, we summarize the research gaps and provide illumination on profitable future directions towards global eradication of RHD.
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Affiliation(s)
- Joselyn Rwebembera
- Department of Adult Cardiology (JR), Uganda Heart Institute, Kampala 37392, Uganda
| | - Bruno Ramos Nascimento
- Departamento de Clinica Medica, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, MG, Brazil; (B.R.N.); (L.P.A.d.S.); (B.F.G.); (L.S.C.); (V.R.S.); (M.C.P.N.)
- Servico de Cardiologia e Cirurgia Cardiovascular e Centro de Telessaude, Hospital das Clinicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena 110, 1st Floor, Belo Horizonte 30130-100, MG, Brazil
| | - Neema W. Minja
- Rheumatic Heart Disease Research Collaborative in Uganda, Uganda Heart Institute, Kampala 37392, Uganda;
| | - Sarah de Loizaga
- School of Medicine, University of Cincinnati, Cincinnati, OH 45229, USA; (S.d.L.); (A.Z.B.)
| | - Twalib Aliku
- Department of Paediatric Cardiology (TA), Uganda Heart Institute, Kampala 37392, Uganda;
| | - Luiza Pereira Afonso dos Santos
- Departamento de Clinica Medica, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, MG, Brazil; (B.R.N.); (L.P.A.d.S.); (B.F.G.); (L.S.C.); (V.R.S.); (M.C.P.N.)
| | - Bruno Fernandes Galdino
- Departamento de Clinica Medica, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, MG, Brazil; (B.R.N.); (L.P.A.d.S.); (B.F.G.); (L.S.C.); (V.R.S.); (M.C.P.N.)
| | - Luiza Silame Corte
- Departamento de Clinica Medica, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, MG, Brazil; (B.R.N.); (L.P.A.d.S.); (B.F.G.); (L.S.C.); (V.R.S.); (M.C.P.N.)
| | - Vicente Rezende Silva
- Departamento de Clinica Medica, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, MG, Brazil; (B.R.N.); (L.P.A.d.S.); (B.F.G.); (L.S.C.); (V.R.S.); (M.C.P.N.)
| | - Andrew Young Chang
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA 94305, USA;
| | - Walderez Ornelas Dutra
- Laboratory of Cell-Cell Interactions, Institute of Biological Sciences, Department of Morphology, Federal University of Minas Gerais, Belo Horizonte 30130-100, MG, Brazil;
- National Institute of Science and Technology in Tropical Diseases (INCT-DT), Salvador 40170-970, BA, Brazil
| | - Maria Carmo Pereira Nunes
- Departamento de Clinica Medica, Faculdade de Medicina da Universidade Federal de Minas Gerais, Belo Horizonte 30130-100, MG, Brazil; (B.R.N.); (L.P.A.d.S.); (B.F.G.); (L.S.C.); (V.R.S.); (M.C.P.N.)
- Servico de Cardiologia e Cirurgia Cardiovascular e Centro de Telessaude, Hospital das Clinicas da Universidade Federal de Minas Gerais, Avenida Professor Alfredo Balena 110, 1st Floor, Belo Horizonte 30130-100, MG, Brazil
| | - Andrea Zawacki Beaton
- School of Medicine, University of Cincinnati, Cincinnati, OH 45229, USA; (S.d.L.); (A.Z.B.)
- Cincinnati Children’s Hospital Medical Center, The Heart Institute, Cincinnati, OH 45229, USA
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7
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Asmare MH, Woldehanna F, Hunegnaw S, Janssens L, Vanrumste B. Prevalence of rheumatic heart disease in a major referral cardiology clinic in Ethiopia: A retrospective cross-sectional study. PLoS One 2021; 16:e0246519. [PMID: 33592020 PMCID: PMC7886207 DOI: 10.1371/journal.pone.0246519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 01/20/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Rheumatic Heart Disease (RHD) remains one of the major causes of death and disability in developing countries. This preventable, treatable but not curable form of cardiovascular disease is needlessly killing scores of children and youth mainly due to the misunderstanding of the burden of the disease in these countries. We sought to describe the prevalence of RHD at one of the major referral cardiology clinics in Ethiopia. METHODS This was a retrospective cross-sectional chart review of all patients referred for a cardiopathy at the Tikur Anbessa Referral Cardiac Clinic from June 2015 to August 2018. We excluded records of patients with a non-cardiac diagnosis and those without a clear diagnosis. A predesigned and tested EXCEL form was used to collect the data. The data was encoded directly from the patient record files. MATLAB's statistics toolbox (MATLAB2019b) was used for statistical analysis. RESULTS Among the total 7576 records analyzed 59.5% of the patients were women. 83.1% of the data belonged to adult patients with the largest concentration reported in the 18 to 27 age group. 69.7% of the patients were from urban areas. The median age of the study population was 30 (interquartile range = 21-50). 4151 cases were caused by RHD which showed that RHD constituted 54.8% of the cases. The median age for RHD patients was 25 (interquartile range = 19-34). The second most prevalent disease was hypertensive heart disease which constituted 13.6% that was followed by congenital heart disease with 9% prevalence rate. CONCLUSION The results of this study indicated the extent of the RHD prevalence in Ethiopia's cardiac hospital was 54.8%. What was more critical was that almost 70% of the RHD patients were mainly the working-age group(19 to 34 years).
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Affiliation(s)
- Melkamu H. Asmare
- Electrical Engineering Department (ESAT), KU Leuven, STADIUS, Leuven, Belgium
- Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia
- Campus Group T, eMedia Research Lab, KU Leuven, Leuven, Belgium
| | - Frehiwot Woldehanna
- Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Samuel Hunegnaw
- Department of Internal Medicine, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Luc Janssens
- Electrical Engineering Department (ESAT), KU Leuven, STADIUS, Leuven, Belgium
- Campus Group T, eMedia Research Lab, KU Leuven, Leuven, Belgium
| | - Bart Vanrumste
- Electrical Engineering Department (ESAT), KU Leuven, STADIUS, Leuven, Belgium
- Campus Group T, eMedia Research Lab, KU Leuven, Leuven, Belgium
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8
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Chang YS, Meng X, Jiao YQ, Chang DW. Early myocardial changes in patients undergoing rheumatic mitral valve repair versus replacement. THE JOURNAL OF CARDIOVASCULAR SURGERY 2020; 61:496-504. [PMID: 32715718 DOI: 10.23736/s0021-9509.20.11212-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Rheumatic mitral valve repair and replacement techniques are frequently used with excellent outcomes in experienced centers. This study aims to evaluate the impact of procedural types on left ventricular function in quinquagenarians. METHODS Between January 2018 and September 2019, patients with severe rheumatic mitral stenosis were prospectively recruited. Propensity score matching was performed to reduce the selection bias. We compared the strain, twist and synchrony parameters of left ventricle in 70 quinquagenarian patients who underwent rheumatic mitral valve repair and replacement 12 hours before surgery, at 7 days and 6 months postoperatively. RESULTS The overall group displayed significant improvement of left ventricular deformation after rheumatic mitral valve surgery. Compared with patients undergoing posterior chordal-sparing mitral valve replacement, patients undergoing rheumatic mitral valve repair showed more significant amelioration in global longitudinal strain (-18.6% versus -16.2%, P<0.001), twist (18.2° versus 15.9°, P<0.001), torsion (1.8°/cm versus 1.3°/cm, P<0.001), apical rotation (10.5° versus 8.8°, P<0.001), basal rotation (-7.7° versus -7.1°, P=0.049), systolic dyssynchrony index (4.7% versus 5.1%, P=0.021), standard deviation of time to peak longitudinal (46.9 ms versus 49.3 ms, P=0.024) and radial strain (15.8 ms versus 17.1 ms, P=0.037) at 6-month follow-up. CONCLUSIONS Rheumatic mitral valve repair might provide patients with better postoperative left ventricular performance than posterior chordal-sparing mitral valve replacement. Longer follow-up is required to compare long-term outcomes.
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Affiliation(s)
- Yin-Shu Chang
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.,Department Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xu Meng
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China -
| | - Yu-Qing Jiao
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Da-Wei Chang
- Faculty of Mathematics and Information Science, Shaanxi Normal University, Xi'an, China
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9
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Whalley G. Appropriate and early detection of rheumatic heart disease. Australas J Ultrasound Med 2020; 23:3-4. [PMID: 34760575 PMCID: PMC8411751 DOI: 10.1002/ajum.12203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Gillian Whalley
- Department of MedicineOtago Medical SchoolUniversity of OtagoPO Box 56Dunedin9054New Zealand
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10
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Abstract
Poststreptococcal reactive arthritis (PSRA) is associated with prior group A β-hemolytic streptococcal infection and has a reported annual incidence of 1 to 2 cases per 100,000 persons, approximately twice that of acute rheumatic fever (ARF) in the US. Children who present with reactive arthritis are not uncommon in a busy general pediatric practice in the US, whereas children who present with ARF are very rare. Distinguishing PSRA from ARF can be challenging because the symptoms and signs are similar, but the diseases differ in long-term therapy, follow-up evaluation, and prognosis. We review the diagnostic criteria for PSRA, the pertinent features of the 2015 ARF diagnostic guideline from the American Heart Association, and the major characteristics that differentiate PSRA from ARF.
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Affiliation(s)
- Colleen Chun
- Pediatric Infectious Diseases, Department of Pediatrics, Northwest Permanente, Portland, OR
| | - Daniel J Kingsbury
- Pediatric Rheumatology, Department of Pediatrics, Randall Children's Hospital at Legacy Emanuel, Portland, OR
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11
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Affiliation(s)
- Mohammed R Essop
- Faculty of Health Sciences, Department of Health Sciences, Division of Cardiology, University of the Witwatersrand, Johannesburg, South Africa (M.R.E). Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa (B.M.M.).
| | - Bongani M Mayosi
- Faculty of Health Sciences, Department of Health Sciences, Division of Cardiology, University of the Witwatersrand, Johannesburg, South Africa (M.R.E). Department of Medicine, Groote Schuur Hospital, University of Cape Town, South Africa (B.M.M.)
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12
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Phillips DIW, Osmond C, Williams ML, Jones A. Air pollution in early life and adult mortality from chronic rheumatic heart disease. Int J Epidemiol 2018; 46:1107-1114. [PMID: 27773865 DOI: 10.1093/ije/dyw249] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2016] [Indexed: 11/14/2022] Open
Abstract
Background Chronic rheumatic heart disease (RHD) remains a globally important cause of heart disease. The reasons for the continuing high prevalence of this disease are obscure, but it may have its origins in the poor social and economic conditions with which the disease has been consistently and strongly linked. Mortality studies from the UK have suggested the importance of adverse environmental factors in early life; these studies demonstrated specific geographical associations between high rates of chest infection during infancy and subsequent RHD. They raised the possibility that early air pollution, which is known to be strongly linked with chest infection during infancy, may predispose to RHD. Methods We related estimates of air pollution and social conditions developed by Daly in 1951-52 for 78 urban areas in England and Wales to their subsequent RHD mortality rates at ages 35-74 in men and women during 1993-2012. Results There were strong relationships between domestic air pollution and RHD [relative risk per standard deviation (SD) increase in pollution 1.168, 95% confidence interval (CI): 1.128 to 1.210, P < 0.001). Inclusion of published data on social class, education, crowding and population density in multiple regression analyses showed that the air pollution association was independent of these; only overcrowding was separately linked with RHD. Conclusions We present the first evidence of an association between air pollution in early life and RHD. Although there are several limitations to this study, the strength and consistency of the results, together with their biological plausibility, suggest a causal link. This deserves attention because it may have important consequences for the control of RHD in resource-poor countries where widespread use of biomass fuels and domestic pollution remain a problem.
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Affiliation(s)
- David I W Phillips
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, Southampton, UK
| | - Clive Osmond
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, Southampton, UK
| | | | - Alexander Jones
- UCL Institute of Cardiovascular Sciences, University College London, London, UK
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13
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Myint NPST, Aung NM, Win MS, Htut TY, Ralph AP, Cooper DA, Nyein ML, Kyi MM, Hanson J. The clinical characteristics of adults with rheumatic heart disease in Yangon, Myanmar: An observational study. PLoS One 2018; 13:e0192880. [PMID: 29466408 PMCID: PMC5821331 DOI: 10.1371/journal.pone.0192880] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 01/31/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Rheumatic heart disease (RHD) is a major cause of premature death in low and middle-income countries. The greatest barrier to RHD control is neglect of the disease in national health policies and a lack of prevalence data that might inform control efforts. Myanmar is making remarkable progress against many infectious diseases, but there are almost no data to define the clinical burden of RHD in the country. This prospective audit was performed in an adult medical ward of a tertiary-referral hospital in Yangon, to gain an insight into the prevalence of RHD in Myanmar. PRINCIPAL FINDINGS All patients admitted to the ward between May 1, 2016 and April 30, 2017 were eligible for enrolment. RHD was confirmed in 96 patients who were admitted on 134 occasions, representing 1.1% of the 12,172 adult medical admissions during the study period. This compared with 410 (3.4%) admissions with HIV and 14 (0.1%) with malaria. Patients with RHD had a median age of 44 years (interquartile range: 35-59); 70 (73%) were female. Only one patient had ever had surgery despite 79 (82%) meeting criteria for intervention; 54 (56%) patients were not receiving any regular clinician review. Prior to hospitalisation only 18 (19%) patients were receiving regular penicillin. Only 8 (19%) of the 42 women <50 years were using contraception. Of 49 patients who had been hospitalised previously, 22 (45%) were receiving no regular therapy. During the study three (3.1%) patients died, and 28 (29%) were lost to follow-up. Of the 65 (68%) alive and retained in care, 21 (32%) were still experiencing moderate-severe RHD-related symptoms at the study's end. CONCLUSIONS There is a significant and unmet clinical burden of RHD in Myanmar. A national RHD programme would improve patient care, reducing morbidity and mortality from this preventable disease.
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Affiliation(s)
- Nan Phyu Sin Toe Myint
- Department of Medicine, Insein General Hospital, Yangon, Myanmar
- University of Medicine 2, Yangon, Myanmar
| | - Ne Myo Aung
- Department of Medicine, Insein General Hospital, Yangon, Myanmar
- University of Medicine 2, Yangon, Myanmar
| | - Myint Soe Win
- Department of Cardiology, North Okkalapa General Hospital, Yangon, Myanmar
| | - Thu Ya Htut
- Department of Medicine, Insein General Hospital, Yangon, Myanmar
| | - Anna P. Ralph
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - David A. Cooper
- Director’s Unit, Kirby Institute, University of New South Wales, Sydney, Australia
| | - Myo Lwin Nyein
- University of Medicine 2, Yangon, Myanmar
- Department of Cardiology, North Okkalapa General Hospital, Yangon, Myanmar
| | - Mar Mar Kyi
- Department of Medicine, Insein General Hospital, Yangon, Myanmar
- University of Medicine 2, Yangon, Myanmar
| | - Josh Hanson
- University of Medicine 2, Yangon, Myanmar
- Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
- Director’s Unit, Kirby Institute, University of New South Wales, Sydney, Australia
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Gemechu T, Mahmoud H, Parry EHO, Phillips DIW, Yacoub MH. Community-based prevalence study of rheumatic heart disease in rural Ethiopia. Eur J Prev Cardiol 2017; 24:717-723. [DOI: 10.1177/2047487316687104] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | | | | | | | - Magdi H Yacoub
- Aswan Heart Centre, Aswan, Egypt
- NHLI, Heart Science Centre, Imperial College London, UK
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15
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Abstract
Rheumatic heart disease (RHD) is a disease of poverty, is almost entirely preventable, and is the most common cardiovascular disease worldwide in those under 25 years. RHD is caused by acute rheumatic fever (ARF) which typically results in cumulative valvular lesions that may present clinically after a number of years of subclinical disease. Therapeutic interventions, therefore, typically focus on preventing subsequent ARF episodes (with penicillin prophylaxis). However, not all patients with ARF develop symptoms and not all symptomatic cases present to a physician or are correctly diagnosed. Therefore, if we hope to control ARF and RHD at the population level, we need a more reliable discriminator of subclinical disease. Recent studies have examined the utility of echocardiographic screening, which is far superior to auscultation at detecting RHD. However, there are many concerns surrounding this approach. Despite the introduction of the World Heart Federation diagnostic criteria in 2012, we still do not really know what constitutes the most subtle changes of RHD by echocardiography. This poses serious problems regarding whom to treat and what to do with the rest, both important decisions with widespread implications for already stretched health-care systems. In addition, issues ranging from improving the uptake of penicillin prophylaxis in ARF/RHD-positive patients, improving portable echocardiographic equipment, understanding the natural history of subclinical RHD and how it might respond to penicillin, and developing simplified diagnostic criteria that can be applied by nonexperts, all need to be effectively tackled before routine widespread screening for RHD can be endorsed.
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Affiliation(s)
- Scott Dougherty
- Department of Internal Medicine, Ministry of Health, Belau National Hospital, Koror, Republic of Palau
| | - Maziar Khorsandi
- Department of Cardiothoracic Surgery, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
| | - Philip Herbst
- Division of Cardiology, Tygerberg Academic Hospital, University of Stellenbosch, Cape Town, South Africa
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16
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Clinical and geographic patterns of rheumatic heart disease in outpatients attending cardiology clinic in western Kenya. Int J Cardiol 2016; 223:228-235. [PMID: 27541662 DOI: 10.1016/j.ijcard.2016.08.069] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 08/02/2016] [Accepted: 08/03/2016] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Rheumatic heart disease (RHD) remains a leading cause of cardiovascular mortality in sub-Saharan Africa. Identifying high risk populations and geographic patterns of disease is crucial to developing RHD prevention and screening strategies in endemic areas. OBJECTIVES To identify clinical and geographical trends in RHD throughout western Kenya METHODS: We conducted a retrospective chart review of all patients <50years old attending adult cardiology clinic at a national referral hospital in western Kenya. Demographic information, residential location and cardiac history were collected. We mapped the spatial distribution of cardiac disease rates and analyzed the effect of distance from the hospital on RHD status. RESULTS Two-thirds (64%) of cardiology clinic patients <50years old (n=906) had RHD. RHD patients were younger (26 vs. 33years, p<0.001) and more often female (69% vs. 59%, p=0.001) than non-RHD patients. Global clustering of disease rates existed within 200km of the hospital with significant clustering of the RHD and non-RHD rate difference surrounding the hospital (Moran's I: 0.3, p=0.001). There was an interaction between ethnicity and distance from the hospital such that the odds of RHD decreased with further distance for Nilotes, but the odds of RHD increased with further distance for non-Nilotes CONCLUSION: Most adult cardiology patients treated at a national referral hospital in western Kenya have RHD. Young people and females are commonly affected. Ethnicity and distance to the hospital interdependently affect the odds of RHD. Future studies in this area should consider the impact of ethnic predisposition to RHD.
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17
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The VALVAFRIC study: A registry of rheumatic heart disease in Western and Central Africa. Arch Cardiovasc Dis 2016; 109:321-9. [DOI: 10.1016/j.acvd.2015.12.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/22/2015] [Accepted: 12/18/2015] [Indexed: 11/19/2022]
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18
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Engelman D, Kado JH, Reményi B, Colquhoun SM, Carapetis JR, Wilson NJ, Donath S, Steer AC. Screening for rheumatic heart disease: quality and agreement of focused cardiac ultrasound by briefly trained health workers. BMC Cardiovasc Disord 2016; 16:30. [PMID: 26830341 PMCID: PMC4736281 DOI: 10.1186/s12872-016-0205-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 01/27/2016] [Indexed: 12/22/2022] Open
Abstract
Background Echocardiographic screening for rheumatic heart disease (RHD) has the potential to detect subclinical cases for secondary prevention, but is constrained by inadequate human resources in most settings. Training non-expert health workers to perform focused cardiac ultrasound (FoCUS) may enable screening at a population-level. We aimed to evaluate the quality and agreement of FoCUS for valvular regurgitation by briefly trained health workers. Methods Seven nurses participated in an eight week training program in Fiji. Nurses performed FoCUS on 2018 children aged five to 15 years, and assessed any valvular regurgitation. An experienced pediatric cardiologist assessed the quality of ultrasound images and measured any recorded regurgitation. The assessment of the presence of regurgitation and measurement of the longest jet by the nurse and cardiologist was compared, using the Bland-Altman method. Results The quality of FoCUS overall was adequate for diagnosis in 96.6 %. There was substantial agreement between the cardiologist and the nurses overall on the presence of mitral regurgitation (κ = 0.75) and aortic regurgitation (κ = 0.61) seen in two views. Measurements of mitral regurgitation by nurses and the cardiologist were similar (mean bias 0.01 cm; 95 % limits of agreement −0.64 to 0.66 cm). Conclusions After brief training, health workers with no prior experience in echocardiography can obtain adequate quality images and make a reliable assessment on the presence and extent of valvular regurgitation. Further evaluation of the imaging performance and accuracy of screening by non-expert operators is warranted, as a potential population-level screening strategy in high prevalence settings. Electronic supplementary material The online version of this article (doi:10.1186/s12872-016-0205-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Daniel Engelman
- Centre for International Child Health, University of Melbourne, Parkville, Victoria, Australia. .,Group A Streptococcal Research, Murdoch Childrens Research Institute, Parkville, Victoria, Australia. .,Royal Children's Hospital, Parkville, Victoria, Australia.
| | - Joseph H Kado
- Department of Paediatrics, Colonial War Memorial Hospital, Suva, Fiji. .,College of Medicine, Nursing and Health Sciences, Fiji National University, Suva, Fiji.
| | - Bo Reményi
- Royal Darwin Hospital, Tiwi, Northern Territory, Australia. .,Menzies School of Health Research, Casuarina, Northern Territory, Australia.
| | - Samantha M Colquhoun
- Centre for International Child Health, University of Melbourne, Parkville, Victoria, Australia. .,Group A Streptococcal Research, Murdoch Childrens Research Institute, Parkville, Victoria, Australia. .,Menzies School of Health Research, Casuarina, Northern Territory, Australia.
| | - Jonathan R Carapetis
- Telethon Kids Institute, University of Western Australia, West Perth, Western Australia, Australia. .,Princess Margaret Hospital for Children, Subiaco, Western Australia, Australia.
| | - Nigel J Wilson
- Starship Hospital, Auckland, New Zealand. .,University of Auckland, Auckland, New Zealand.
| | - Susan Donath
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia. .,Clinical Epidemiology and Biostatistics Unit, Murdoch Childrens Research Institute, Parkville, Victoria, Australia.
| | - Andrew C Steer
- Centre for International Child Health, University of Melbourne, Parkville, Victoria, Australia. .,Group A Streptococcal Research, Murdoch Childrens Research Institute, Parkville, Victoria, Australia. .,Royal Children's Hospital, Parkville, Victoria, Australia.
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19
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Murray P, Shaw C. Comparing the incomparable: studies of echocardiographic rheumatic heart disease prevalence. LANCET GLOBAL HEALTH 2015; 3:e192. [PMID: 25794670 DOI: 10.1016/s2214-109x(15)70076-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Peter Murray
- Department of Public Health, University of Otago, Wellington, Newtown, Wellington 6021, New Zealand.
| | - Caroline Shaw
- Department of Public Health, University of Otago, Wellington, Newtown, Wellington 6021, New Zealand
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