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Mao C, Sun X, Long D, Zhang M, Xu X, Gao X, Lin Y, Wang X. Epidemiological study of pediatric rheumatic heart disease: An analysis from the Global Burden of Disease Study 2019. Int J Cardiol 2024; 400:131705. [PMID: 38171386 DOI: 10.1016/j.ijcard.2023.131705] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/29/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Rheumatic heart disease (RHD) is the most common acquired heart disease among children in developing countries. However, there is a lack of systematic studies on the epidemiology of pediatric RHD. This study aimed to report the burden of pediatric RHD at global, regional, and national levels between 1990 and 2019, which may provide some reference for policymakers. METHODS The numbers and age-standardized rates (ASRs) of incidence, prevalence, mortality, and disability-adjusted life years (DALYs) for childhood RHD from 1990 to 2019 were analyzed based on data obtained from the Global Burden of Disease Study 2019 (GBD 2019). In addition, Joinpoint regression analysis was used to assess temporal trends in the burden of childhood RHD. RESULTS Globally, the number of incidence and prevalence cases of RHD in children increased by 41.89% and 40.88%, respectively, from 1990 to 2019. Age-standardized incidence rate (ASIR) and age-standardized prevalence rate (ASPR) increased with an average annual percentage change (AAPC) of 0.75% and 0.66%, respectively. In contrast, the age-standardized DALY rate and age-standardized mortality rate (ASMR) decreased significantly since 1990 by an AAPC of -3.47% and - 2.65%, respectively. Girls had a significantly higher burden of RHD than boys during the study period. At the age level, the RHD burden was significantly highest in the age group of 10-14 years. Moreover, the ASRs of incidence, prevalence, mortality, and DALYs were negatively associated with sociodemographic index (SDI). Nationally, Fiji had the most significant increase in incidence and prevalence, and Philippines had the most remarkable rise in DALYs and mortality rates. CONCLUSION From 1990 to 2019, although the incidence and prevalence of childhood RHD increased globally, DALYs and mortality rates markedly reduced. Countries with lower levels of sociodemographic development shoulder a higher burden of childhood RHD. Children aged 10-14 years are critical populations for whom targeted measures are needed to reduce the RHD burden, while attention to girls cannot be neglected.
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Affiliation(s)
- Chenhan Mao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu, China
| | - Xuemei Sun
- Changzhou Hospital of Traditional Chinese Medicine, Changzhou, Jiangsu, China
| | - Dan Long
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Meng Zhang
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaojin Xu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu, China
| | - Xin Gao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu, China
| | - Yan Lin
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu, China.
| | - Xindong Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China; Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu, China.
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Mutagaywa RK, Kifai E, Elinisa M, Mayala H, Kisenge P, Shemu T, Nyawawa E, Kunambi PP, Boniface R, Barongo A, Kwesigabo G, Kamuhabwa A, Chamuleau S, Cramer MJ, Chillo P. Comparison between interventional versus medical therapy in patients with rheumatic mitral valve stenosis in Tanzania. Eur J Clin Invest 2024; 54:e14114. [PMID: 37874538 DOI: 10.1111/eci.14114] [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: 06/13/2023] [Revised: 10/07/2023] [Accepted: 10/14/2023] [Indexed: 10/25/2023]
Abstract
BACKGROUND Rheumatic heart disease remains the most common cardiovascular disease in children and young adults. The outcome of interventional versus medical therapy on the long term is not fully elucidated yet. This study provides contemporary data on the clinical profile, treatment and follow up of patients with rheumatic mitral stenosis (MS) in Tanzania. METHODS Patients' medical information, investigations and treatment data were recorded in this prospective cohort study. They were followed up for 6-24 months to determine the long-term outcome. Interventional therapy was defined as a combination of surgery and percutaneous balloon mitral valvuloplasty. Kaplan-Meier curves and Cox proportional hazards model were used in analyses. p-Value < 0.05 was considered statistically significant. RESULTS We enrolled 290 consecutive patients. Interventions were done in half of the patients. Median follow up was 23.5 months. Mortality was higher in the medical than interventional treatment (10.4% vs. 4%, log-rank p = 0.001). Median age was 36 years, females (68.3%) and low income (55.5%). Multivalvular disease was found in 116 (40%) patients, atrial fibrillation (31.4%), stroke/transient ischaemic attack (18.9%) and heart failure class III-IV (44.1%). Median (IQR) duration of disease was 3 (4) years, secondary prophylaxis (27.7%) and oral anticoagulants use (62.3%). In multivariable analysis, the risk of death among patients on medical was 3.07 times higher than those on interventional treatment (crude HR 3.07, 95% CI 1.43-6.56, p = 0.004), 2.44 times higher among patients with arrhythmias versus without arrhythmias (crude HR 2.44, 95% CI 1.19-4.49, p = 0.015) and 2.13 times higher among patients with multivalvular than single valve disease (crude HR 2.13, 95% CI 1.09-4.16, p = 0.026). CONCLUSIONS Intervention is carrying low mortality compared to medical treatment. Arrhythmias and multivalvular disease are associated with a high mortality. Rheumatic MS is more prevalent in young people, females and individuals with low income. There is a late hospital presentation and a low use of both secondary prophylactic antibiotics and anticoagulants.
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Affiliation(s)
- Reuben K Mutagaywa
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
- Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania
- Muhimbili Orthopedic Institute, Dar es Salaam, Tanzania
- Division of Heart and Lung, Department of Cardiology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | | | - Mercy Elinisa
- Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania
| | - Henry Mayala
- Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania
| | - Peter Kisenge
- Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania
| | - Tulizo Shemu
- Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania
| | | | - Peter P Kunambi
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | | | - Aileen Barongo
- Department of Paediatric and Child Health, Mwananyamala Regional Referral Hospital, Dar es Salaam, Tanzania
| | - Gideon Kwesigabo
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | | | - Steven Chamuleau
- Department of Cardiology, Amsterdam Heart Centre, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Maarten J Cramer
- Division of Heart and Lung, Department of Cardiology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Pilly Chillo
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
- Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania
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3
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Wiens EJ, Kawa K, Kass M, Shah AH. Impact of biological sex on valvular heart disease, interventions, and outcomes. Can J Physiol Pharmacol 2024. [PMID: 38427984 DOI: 10.1139/cjpp-2023-0390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Valvular heart disease (VHD) is common, affecting >14% of individuals aged >75, and is associated with morbidity, including heart failure and arrhythmia, and risk of early mortality. Increasingly, important sex differences are being found between males and females with VHD. These sex differences can involve the epidemiology, pathophysiology, presentation, diagnosis, and outcomes of the disease. Females are often disadvantaged, and female sex has been shown to be associated with delayed diagnosis and inferior outcomes in various forms of VHD. In addition, the unique pathophysiologic state of pregnancy is associated with increased risk for maternal and fetal morbidity and mortality in many forms of VHD. Therefore, understanding and recognizing these sex differences, and familiarity with the attendant risks of pregnancy and management of pregnant females with VHD, is of great importance for any primary care or cardiovascular medicine practitioner caring for the female patient. This review will outline sex differences in aortic, mitral, pulmonic, and tricuspid VHD, with particular focus on differences in pathophysiology, clinical presentation, and outcomes. In addition, the pathophysiology and management implications of pregnancy will be discussed.
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Affiliation(s)
- Evan J Wiens
- Department of Critical Care Medicine, University of Alberta, Edmonton, AB, Canada
| | - Kristal Kawa
- College of Nursing, University of Manitoba, Winnipeg, MB, Canada
| | - Malek Kass
- Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
- Section of Cardiology, Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Ashish H Shah
- Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
- Section of Cardiology, Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
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Kaewpechsanguan A, Chungsomprasong P, Durongpisitkul K, Vijarnsorn C, Chanthong P, Kanjanauthai S, Pacharapakornpong T, Thammasate P, Soongswang J. Manifestations of Rheumatic Carditis, Regression of Valvular Regurgitation, and Independent Predictors of Mitral Regurgitation Improvement After Rheumatic Carditis in Thai Children. Glob Heart 2024; 19:16. [PMID: 38344744 PMCID: PMC10854449 DOI: 10.5334/gh.1295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 01/12/2024] [Indexed: 02/15/2024] Open
Abstract
Background Acute rheumatic fever (ARF) with carditis can lead to the development of rheumatic heart disease in children and young adults. Objective This study aimed to investigate the manifestations of rheumatic carditis, clinically significant regression of valvular regurgitation as assessed by echocardiography, and the independent predictors of mitral regurgitation (MR) improvement after rheumatic carditis in Thai children. Method Children diagnosed with rheumatic carditis during 2005-2020 at Siriraj Hospital (Bangkok, Thailand) were retrospectively enrolled. Trivial, and mild regurgitation were grouped as non-clinically significant (NCS) regurgitation. Valvular regression was defined moderate-severe regurgitation improving to NCS regurgitation. Results Eighty-one patients (mean age: 10 years, range: 8-12 years) were included. At presentation, 59 (72.8%) patients had combined mitral regurgitation (MR) and aortic regurgitation (AR), 20 (24.6%) patients had MR alone, and 2 (2.4%) patients had AR alone. Concerning severity, 28 (34.6%) and 30 (37%) patients presented with severe and moderate MR, respectively. Severe and moderate AR was found in 9 (11.1%) and 16 (19.8%) patients, respectively. At the one-year follow-up, 43.4% of moderate-severe MR, and 41.7% of moderate-severe AR improved to NCS regurgitation. Multivariate analysis revealed high erythrocyte sedimentation rate (ESR) (p = 0.01) and severe carditis (p = 0.05) at presentation to be independent predictors of MR improvement. Conclusion Thai children with rheumatic carditis had a high incidence of valvular regurgitation; however, the valvular damage was improved in most patients. High ESR and severe carditis independently predict MR improvement.
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Affiliation(s)
- Araya Kaewpechsanguan
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Paweena Chungsomprasong
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kritvikrom Durongpisitkul
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chodchanok Vijarnsorn
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Prakul Chanthong
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Supaluck Kanjanauthai
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Thita Pacharapakornpong
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Ploy Thammasate
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jarupim Soongswang
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Topçu S, Uçar T. Echocardiographic Screening of Rheumatic Heart Disease: Current Concepts and Challenges. Turk Arch Pediatr 2024; 59:3-12. [PMID: 38454255 PMCID: PMC10837514 DOI: 10.5152/turkarchpediatr.2024.23162] [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: 07/27/2023] [Accepted: 10/10/2023] [Indexed: 03/09/2024]
Abstract
The incidence of acute rheumatic fever (ARF), which most commonly affects children aged 5-15 years after group A Streptococcus (GAS) infection, ranges from 8 to 51 per 100 000 people worldwide. Rheumatic heart disease (RHD), which occurs when patients with ARF are inappropriately treated or not given regular prophylaxis, is the most common cause of non-congenital heart disease in children and young adults in low-income countries. Timely treatment of GAS infection can prevent ARF, and penicillin prophylaxis can prevent recurrence of ARF. Secondary prophylaxis with benzathine penicillin G has been shown to decrease the incidence of RHD and is a key aspect of RHD control. The most important factor determining the prognosis of RHD is the severity of cardiac involvement. Although approximately 70% of patients with carditis in the acute phase of the disease recover without sequelae, carditis is important because it is the only complication of ARF that causes sequelae. One-third of patients with ARF are asymptomatic. Patients with mild symptoms of recurrent ARF and silent RHD will develop severe morbidities within 5-10 years if they do not receive secondary preventive treatments. A new screening program should be established to prevent cardiac morbidities of ARF in moderate- and highrisk populations. In the present study, we examined the applicability of echocardiographic screening programs for RHD. Cite this article as: Topçu S, Uçar T. Echocardiographic screening of rheumatic heart disease: Current concepts and challenges. Turk Arch Pediatr. 2024;59(1):3-12.
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Affiliation(s)
- Seda Topçu
- Division of Social Pediatrics, Department of Pediatrics, Ankara University School of Medicine, Ankara, Turkey
| | - Tayfun Uçar
- Division of Pediatric Cardiology, Department of Pediatrics, Ankara University School of Medicine, Ankara, Turkey
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McBenedict B, Mansoor Z, Chaudhary A, Thomas A, Yaseen M, Hauwanga W. Temporal Trends of Age-Adjusted Mortality Rates for Rheumatic Heart Disease in Brazil From 2000 to 2021. Cureus 2024; 16:e52322. [PMID: 38357062 PMCID: PMC10866569 DOI: 10.7759/cureus.52322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2024] [Indexed: 02/16/2024] Open
Abstract
Background Rheumatic heart disease (RHD) is a chronic cardiovascular condition stemming from an infectious origin, posing a substantial health burden, particularly in economically disadvantaged regions. It starts with acute rheumatic fever (ARF), a complication following group A Streptococcus infection, leading to heart valve damage and, over time, structural heart abnormalities. RHD contributes to premature deaths, especially in low-middle-income countries. Although the incidence and prevalence have generally reduced globally due to antibiotics and improved healthcare, it remains a significant public health concern in Brazil, echoing its prevalence in many developing nations around the world. RHD stands as a poignant testament to the intersection of socio-economic disparities and healthcare challenges within Brazil's diverse population. In Brazil, despite advancements in healthcare, RHD continues to impact communities, highlighting the urgent need for enhanced prevention strategies, access to quality healthcare services, and heightened awareness to combat this preventable, yet persistent, cardiac condition. Understanding the epidemiological landscape and socio-cultural factors influencing RHD in Brazil is crucial for developing targeted interventions aimed at mitigating its burden on individuals, families, and the healthcare system at large. Thus, our study focuses on analyzing age-related mortality rates linked to ARF and chronic RHD (ARHD) in Brazil from 2000 to 2021, particularly examining gender disparities. Materials and methods This retrospective cohort study employed a descriptive time-series approach, utilizing comprehensive nationwide data from Brazil spanning from 2000 to 2021 to assess trends in diverse age groups, among both sexes, enabling a detailed analysis of temporal patterns. Mortality data, extracted and categorized meticulously, were subjected to Joinpoint statistical analyses enabling comparative assessments, with average annual percent change (AAPC) and annual percent change (APC) serving as key metrics to quantify and interpret trends over the analyzed period. Results The acute RHD (ARHD)-related mortality declined over the analyzed years supported by AAPC, with higher mortality reduction in females. The age-adjusted mortality rate for "males and females" decreased from 78 to 67 deaths/100,000 from 2000 to 2021. Female mortality dropped from 85 to 69/100,000, and male mortality decreased from 73 to 63/100,000 over the same period. For ARHD, male age groups (20-29, 60-69, 70-79, 80+) showed declining mortality, while the 30-59 age group exhibited an upward. Females AAMR for chronic RHD (CRHD) decreased across all age groups, with significant reductions in the 80 years and above age group from 2000-2002 (APC: -11.94*) and steadily from 2002 onwards (APC: -1.33). Conclusions Our study revealed an overall decline in mortality rates for both acute and CRHD across both sexes. Females consistently exhibited higher mortality rates and a more pronounced reduction compared to males in both acute and CRHD. In ARHD, males experience the highest mortality in the 50-59 age group, while females have a peak in the 40-49 age group. The 60-69 age group had the highest mortality in CRHD for both sexes. Conversely, the 20-29 age group displayed the lowest mortality in CRHD, and the 80-89 age group had the lowest mortality in ARHD.
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Affiliation(s)
- Billy McBenedict
- Medicine, Hospital Universitário Antônio Pedro (Antonio Pedro University Hospital), Niteroi, BRA
| | - Zaeemah Mansoor
- Faculty of Health Sciences, Karachi Medical and Dental College, Karachi, PAK
| | | | - Anusha Thomas
- Neurology, Christian Medical College and Hospital, Ludhiana, IND
| | - Muhammad Yaseen
- Medicine and Surgery, Gambat Institute of Medical Sciences, Gambat, PAK
| | - Wilhelmina Hauwanga
- Family Medicine, Faculty of Medicine, Federal University of the State of Rio de Janeiro, Rio de Janeiro, BRA
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7
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De Zan G, van der Bilt IAC, Broekhuizen LN, Cramer MJ, Danad I, van Osch D, Patti G, van Rosendael PJ, Teske AJ, van der Harst P, Guglielmo M. Non-Invasive Assessment of Multivalvular Heart Disease: A Comprehensive Review. Rev Cardiovasc Med 2024; 25:29. [PMID: 39077670 PMCID: PMC11262342 DOI: 10.31083/j.rcm2501029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 07/31/2024] Open
Abstract
Multivalvular heart disease (MVD) implies the presence of concomitant valvular lesions on two or more heart valves. This condition has become common in the few last years, mostly due to population aging. Every combination of valvular lesions uniquely redefines the hemodynamics of a patient. Over time, this may lead to alterations in left ventricle (LV) dimensions, shape and, eventually, function. Since most of the echocardiographic parameters routinely used in the valvular assessment have been developed in the context of single valve disease and are frequently flow- and load-dependent, their indiscriminate use in the context of MVD can potentially lead to errors in judging lesion severity. Moreover, the combination of non-severe lesions may still cause severe hemodynamic consequences, and thereby systolic dysfunction. This review aims to discuss the most frequent combinations of MVD and their echocardiographic caveats, while addressing the opportunities for a multimodality assessment to achieve a better understanding and treatment of these patients.
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Affiliation(s)
- Giulia De Zan
- Department of Translational Medicine, Division of Cardiology, University of Eastern Piedmont, Maggiore della Carità Hospital, 28100 Novara, Italy
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
| | - Ivo A. C. van der Bilt
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
- Department of Cardiology, Haga Teaching Hospital, 2545 AA The Hague, The Netherlands
| | - Lysette N. Broekhuizen
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
| | - Maarten J. Cramer
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
| | - Ibrahim Danad
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
| | - Dirk van Osch
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
| | - Giuseppe Patti
- Department of Translational Medicine, Division of Cardiology, University of Eastern Piedmont, Maggiore della Carità Hospital, 28100 Novara, Italy
| | - Philippe J. van Rosendael
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
| | - Arco J. Teske
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
| | - Pim van der Harst
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
| | - Marco Guglielmo
- Department of Cardiology, Division of Heart and Lungs, Utrecht University Medical Center, 3584 CX Utrecht, The Netherlands
- Department of Cardiology, Haga Teaching Hospital, 2545 AA The Hague, The Netherlands
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McCabe S, Bjånes E, Hendriks A, Wang Z, van Sorge NM, Pill-Pepe L, Bautista L, Chu E, Codée JDC, Fairman J, Kapoor N, Uchiyama S, Nizet V. The Group A Streptococcal Vaccine Candidate VAX-A1 Protects against Group B Streptococcus Infection via Cross-Reactive IgG Targeting Virulence Factor C5a Peptidase. Vaccines (Basel) 2023; 11:1811. [PMID: 38140215 PMCID: PMC10747066 DOI: 10.3390/vaccines11121811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Group B Streptococcus (Streptococcus agalactiae or GBS) is the leading infectious cause of neonatal mortality, causing roughly 150,000 infant deaths and stillbirths annually across the globe. Approximately 20% of pregnant women are asymptomatically colonized by GBS, which is a major risk factor for severe fetal and neonatal infections as well as preterm birth, low birth weight, and neurodevelopmental abnormalities. Current clinical interventions for GBS infection are limited to antibiotics, and no vaccine is available. We previously described VAX-A1 as a highly effective conjugate vaccine against group A Streptococcus that is formulated with three antigens, SpyAD, streptolysin O, and C5a peptidase (ScpA). ScpA is a surface-expressed, well-characterized GAS virulence factor that shares nearly identical sequences with the lesser studied GBS homolog ScpB. Here, we show that GBS C5a peptidase ScpB cleaves human complement factor C5a and contributes to disease severity in the murine models of pneumonia and sepsis. Furthermore, antibodies elicited by GAS C5a peptidase bind to GBS in an ScpB-dependent manner, and VAX-A1 immunization protects mice against lethal GBS heterologous challenge. These findings support the contribution of ScpB to GBS virulence and underscore the importance of choosing vaccine antigens; a universal GAS vaccine such as VAX-A1 whose formulation includes GAS C5a peptidase may have additional benefits through some measure of cross-protection against GBS infections.
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Affiliation(s)
- Sinead McCabe
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (S.M.); (E.B.); (S.U.)
| | - Elisabet Bjånes
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (S.M.); (E.B.); (S.U.)
| | - Astrid Hendriks
- Department of Medical Microbiology and Infection Prevention, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (A.H.); (N.M.v.S.)
| | - Zhen Wang
- Leiden Institute of Chemistry, Leiden University, 2333 CC Leiden, The Netherlands; (Z.W.); (J.D.C.C.)
| | - Nina M. van Sorge
- Department of Medical Microbiology and Infection Prevention, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (A.H.); (N.M.v.S.)
- Netherlands Reference Laboratory for Bacterial Meningitis, Amsterdam UMC, 1105 AZ Amsterdam, The Netherlands
| | - Lucy Pill-Pepe
- Vaxcyte, Inc., San Carlos, CA 94070, USA; (L.P.-P.); (L.B.); (E.C.); (J.F.); (N.K.)
| | - Leslie Bautista
- Vaxcyte, Inc., San Carlos, CA 94070, USA; (L.P.-P.); (L.B.); (E.C.); (J.F.); (N.K.)
| | - Ellen Chu
- Vaxcyte, Inc., San Carlos, CA 94070, USA; (L.P.-P.); (L.B.); (E.C.); (J.F.); (N.K.)
| | - Jeroen D. C. Codée
- Leiden Institute of Chemistry, Leiden University, 2333 CC Leiden, The Netherlands; (Z.W.); (J.D.C.C.)
| | - Jeff Fairman
- Vaxcyte, Inc., San Carlos, CA 94070, USA; (L.P.-P.); (L.B.); (E.C.); (J.F.); (N.K.)
| | - Neeraj Kapoor
- Vaxcyte, Inc., San Carlos, CA 94070, USA; (L.P.-P.); (L.B.); (E.C.); (J.F.); (N.K.)
| | - Satoshi Uchiyama
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (S.M.); (E.B.); (S.U.)
| | - Victor Nizet
- Division of Host-Microbe Systems and Therapeutics, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (S.M.); (E.B.); (S.U.)
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093, USA
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Rudiktyo E, Soesanto AM, Cramer MJ, Yonas E, Teske AJ, Siswanto BB, Doevendans PA. Global Left Ventricular Myocardial Work Efficiency in Patients With Severe Rheumatic Mitral Stenosis and Preserved Left Ventricular Ejection Fraction. J Cardiovasc Imaging 2023; 31:191-199. [PMID: 37901998 PMCID: PMC10622643 DOI: 10.4250/jcvi.2022.0124] [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: 10/24/2022] [Revised: 06/18/2023] [Accepted: 07/09/2023] [Indexed: 10/31/2023] Open
Abstract
BACKGROUND Assessment of left ventricular (LV) function plays a pivotal role in the management of patients with valvular heart disease, including those caused by rheumatic heart disease. Noninvasive LV pressure-strain loop analysis is emerging as a new echocardiographic method to evaluate global LV systolic function, integrating longitudinal strain by speckle-tracking analysis and noninvasively measured blood pressure to estimate myocardial work. The aim of this study was to characterize global LV myocardial work efficiency in patients with severe rheumatic mitral stenosis (MS) with preserved ejection fraction (EF). METHODS We retrospectively included adult patients with severe rheumatic MS with preserved EF (> 50%) and sinus rhythm. Healthy individuals without structural heart disease were included as a control group. Global LV myocardial work efficiency was estimated with a proprietary algorithm from speckle-tracking strain analyses, as well as noninvasive blood pressure measurements. RESULTS A total of 45 individuals with isolated severe rheumatic MS with sinus rhythm and 45 healthy individuals were included. In healthy individuals without structural heart disease, the mean global LV myocardial work efficiency was 96% (standard deviation [SD], 2), Compared with healthy individuals, median global LV myocardial work efficiency was significantly worse in MS patients (89%; SD, 4; p < 0.001) although the LVEF was similar. CONCLUSIONS Individuals with isolated severe rheumatic MS and preserved EF, had global LV myocardial work efficiencies lower than normal controls.
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Affiliation(s)
- Estu Rudiktyo
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia.
| | - Amiliana M Soesanto
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | - Maarten J Cramer
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Emir Yonas
- Faculty of Medicine, Universitas YARSI, Jakarta, Indonesia
| | - Arco J Teske
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Bambang B Siswanto
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | - Pieter A Doevendans
- Division Heart and Lungs, Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
- Central Military Hospital, Utrecht, The Netherlands
- Netherlands Heart Institute, Utrecht, The Netherlands
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10
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Chillo P, Mutagaywa R, Nkya D, Njelekela M, Kwesigabo G, Kahabuka F, Kerry V, Kamuhabwa A. Sub-clinical rheumatic heart disease (RHD) detected by hand-held echocardiogram in children participating in a school-based RHD prevention program in Tanzania. BMC Cardiovasc Disord 2023; 23:155. [PMID: 36966309 PMCID: PMC10040127 DOI: 10.1186/s12872-023-03186-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 03/15/2023] [Indexed: 03/27/2023] Open
Abstract
BACKGROUND Rheumatic Heart Disease (RHD) continues to cause suffering and premature deaths in many sub-Saharan Africa (SSA) countries, where the disease is still endemic. RHD is largely preventable and determining its community burden is an important critical step in any RHD prevention program. METHODS We conducted a cross-sectional study of 5-16 years old pupils from 11 primary schools participating in an RHD prevention program in 4 districts in Tanzania, between 2018 and 2019. At the school, all children were invited to participate after receiving consent from their parents/guardians. Participating children filled a questionnaire and were auscultated for cardiac murmurs. Echocardiographic screening was done by two experienced cardiologists, using a hand-held machine (V-Scan, GE®). All positive screening tests were stored for further examination by the same two cardiologists to reach to a consensus of definite, borderline or no RHD, using a modified World Heart Federation (WHF) criterion. RESULTS Of the 6895 children invited, 4738 (68.7%) were screened and 4436 (64.3%) had complete data. The mean (SD) age was 10.04 (2.43) years, and 2422 (54.6%) were girls. Fifty three (1.2%) children were found to have a murmur. The proportion of children with trace or mild valvular regurgitation, sub-valvular/chordal thickening and valvular thickening/deformity were 8.3%, 1.3%, and 1.0%, respectively. Sub-clinical RHD was found in 95 children (59 definite and 36 borderline), giving a prevalence of 2.1%, [95% CI 1.7% - 2.6%]. Sub-clinical RHD was independently associated with female sex (aOR 1.83, 95% CI 1.18-2.85, p = 0.007), older age groups (aOR 1.73, 95% CI 1.10-2.72, p = 0.018 for age group 11-14 years; and aOR 3.02 95% CI 1.01-9.05, p = 0.048 for age group 15-16 years), as well as presence of a cardiac murmur, aOR 5.63 95% CI 2.31-13.69, p < 0.0001. None of the studied socio- or economic factors was associated with the presence of sub-clinical RHD in this study. CONCLUSION The prevalence of sub-clinical RHD among primary school children in Tanzania is 2.1%, similar to previous reports in SSA. Efforts to prevent and control RHD in our communities are highly warranted.
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Affiliation(s)
- Pilly Chillo
- Department of Internal Medicine, Section of Cardiology, School of Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
| | - Reuben Mutagaywa
- Department of Internal Medicine, Section of Cardiology, School of Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Deogratias Nkya
- Department of Paediatric and Child Health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Marina Njelekela
- Department of Physiology, Muhimbili University of Health and Allied Sciences and Deloitte Consulting Limited, Dar es Salaam, Tanzania
| | - Gideon Kwesigabo
- Department of Epidemiology and Community Health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Febronia Kahabuka
- Department of Orthodontics Paedodontics & Community Dentistry, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Vanessa Kerry
- Department of Global Health and Social Medicine, Seed Global Health Partnerships, Boston, USA
- Harvard Medical School, Center for Global Health, Mass General Hospital, Boston, MA, USA
| | - Appolinary Kamuhabwa
- Department of Clinical Pharmacy and Pharmacology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
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Aurigemma C, Burzotta F, Trani C. Heart valve disease gender difference in the era of transcatether treatment. HEART, VESSELS AND TRANSPLANTATION 2023. [DOI: 10.24969/hvt.2023.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Available data have demonstrated important sex-related differences in patients with valvular heart disease, regarding clinical presentation, treatment, and outcomes. Although the calcific aortic stenosis (AS) is more frequent in men compared to women, the majority of AS patients over 80 years old are women, in whom fibrotic remodeling of aortic valve is typically found. Mitral valve disease is more common in women. However females are under-referred or delayed referrals to treatment, probably due to the absence of sex-based LV dimension values guiding surgical timing. The development of transcatheter devices have revolutionized the treatment of valvular heart disease and increased the interest in this topic.
In this context, the consideration of gender differences in presentation, diagnosis, treatment success, and prognosis is of great importance.
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Liu B, Wang Y, Liu Y, Wu P, Li T. Effects of percutaneous balloon mitral valvuloplasty in patients with mitral stenosis and atrial fibrillation: a systematic review and meta-analysis. Acta Cardiol 2022; 77:890-899. [PMID: 34866553 DOI: 10.1080/00015385.2021.1989837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE The study aimed to systematically review the existing literature and assess the effects of percutaneous balloon mitral valvuloplasty (PBMV) in patients with mitral stenosis and atrial fibrillation (AF) as opposed to sinus rhythm (SR). METHODS Eligible studies were identified from six electronic databases before June 2021. The primary outcome was mitral valve area (MVA), and secondary outcomes were hemodynamic measurements, in-hospital complications, and long-term outcomes. Relative risks (RRs) or weighted mean differences (WMDs) with 95% confidence intervals (CIs) were used as effect sizes. RESULTS Fifteen studies were included involving 6351 patients. For the primary outcome, the AF group obtained less favourable changes in MVA (WMD: -0.10, 95%CI: -0.14, -0.06) and a significantly smaller postoperative and long-term MVA (WMD: -0.13, 95%CI: -0.18, -0.08 and WMD: -0.10, 95%CI: -0.17, -0.03, respectively) compared to the SR group. For secondary outcome, the AF group was associated with suboptimal outcomes as following (WMD/RR, [95%CI]): higher LAP (1.37, [0.86, 1.87]), more embolism (2.85, [1.44, 5.63]), lower event-free survival (0.89, [0.80, 1.00]), higher incidences of mitral valve replacement (2.20, [1.40, 3.46]), re-PBMV (2.28, [1.63, 3.19]), and mortality (3.28, [2.42, 4.44]). No significant differences were found in other outcomes. CONCLUSIONS The currently available evidence suggests that PBMV may be less effective in patients with AF than in those with SR. However, early treatment and appropriate management of AF patients undergoing PBMV may benefit the immediate and long-term outcomes.
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Affiliation(s)
- Bojiang Liu
- Heart Central, Third Central Hospital of Tianjin, Tianjin, China
| | - Yunyun Wang
- Heart Central, Third Central Hospital of Tianjin, Tianjin, China
| | - Yingwu Liu
- Heart Central, Third Central Hospital of Tianjin, Tianjin, China
| | - Peng Wu
- Heart Central, Third Central Hospital of Tianjin, Tianjin, China
| | - Tong Li
- Heart Central, Third Central Hospital of Tianjin, Tianjin, China
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Mutagaywa RK, Vroon JC, Fundikira L, Wind AM, Kunambi P, Manyahi J, Kamuhabwa A, Kwesigabo G, Chamuleau SAJ, Cramer MJ, Chillo P. Infective endocarditis in developing countries: An update. Front Cardiovasc Med 2022; 9:1007118. [PMID: 36172579 PMCID: PMC9510687 DOI: 10.3389/fcvm.2022.1007118] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/24/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction Despite advances in diagnostic and treatment, morbidity and mortality due to infective endocarditis (IE) has not decreased. There is a discrepancy in epidemiology of IE between developed and developing countries. Over the last years, increased early detection and consequently prevalence of rheumatic heart disease (RHD) and congenital heart disease (CHD) which are considered predisposing conditions for IE, is noted. Here, we present a review of literature on IE in developing countries. Methods We conducted a systematic literature search of IE studies in developing countries through PubMed and Embase. We have divided the studies into two groups: studies published before 2015 (group 1) and studies ≥ 2015 (group 2). The outcome was defined as a difference in epidemiology, microbiology, treatment, and mortality over time. The Scale for Assessment of Narrative Review Articles guidelines was applied. Findings In total, 16 studies were included. The total number of IE cases was 1,098 and 1,505 in groups 1 and 2, respectively. We compared 4/7 cohorts from group 1 (n = 789) with 5/9 cohorts from group 2 (n = 636). Six studies were not included in the comparison because they were interacting between the two cohorts. Males predominated in all studies. Rheumatic heart disease was higher in group 1 than in group 2 (42.3% vs. 30.3%, p < 0.001) while for CHD there was no change (17.6% vs. 16.7%, p = 0.672). Streptococci infections was lower in group 1 than group 2 (26.2% vs. 37.7%, p < 0.001). The proportion of Staphylococcus aureus was 15.3% in group 1 and 23.6% in group 2, p < 0.001. Negative blood culture (NBC) was higher in group 1 than in group 2 (42.2% vs. 34.1%, p = 0.002). Patients in group 1 received more surgery than in group 2 (38.8% vs. 28.8%, p < 0.001). Mortality was similar in the two groups (20.9% vs. 22.3%, p = 0.518). Conclusion This review shows a scarcity of studies on IE in developing countries. Rheumatic heart disease and congenital heart disease are common predisposing conditions. Other risk factors are prosthetic valves, degenerative valve disease (DVD), intravenous drug use, and human immunodeficiency virus infection. While the proportion of IE cases caused by Streptococcus and Staphylococcus has increased, the number of NBC and patients getting surgery has decreased. Mortality has not changed over time. Timely diagnosis and management of patients with RHD and CHD and comprehensive management of IE are warranted.
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Affiliation(s)
- Reuben K. Mutagaywa
- Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, Netherlands
- Department of Internal Medicine, School of Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
- *Correspondence: Reuben K. Mutagaywa
| | - Josephine C. Vroon
- Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, Netherlands
| | - Lulu Fundikira
- Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, Netherlands
- Department of Internal Medicine, School of Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Anna Maria Wind
- Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, Netherlands
- Department of Cardiology, Diakonessen Hospital, Utrecht, Netherlands
| | - Peter Kunambi
- Department of Clinical Pharmacy and Pharmacology, School of Pharmacy, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Joel Manyahi
- Department of Internal Medicine, School of Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Apollinary Kamuhabwa
- Department of Clinical Pharmacy and Pharmacology, School of Pharmacy, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Gideon Kwesigabo
- Department of Epidemiology and Biostatistics, School of Public Health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Steven A. J. Chamuleau
- Amsterdam UMC Heart Center, Department of Cardiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centre, Amsterdam, Netherlands
| | - Maarten J. Cramer
- Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, Netherlands
| | - Pilly Chillo
- Department of Internal Medicine, School of Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
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Ibrahim KS, Kheirallah KA, Megdadi MA. Enlargement of the Left Atrium Strongly Predicts Postoperative Mortality Following Heart Valve Surgery. Vasc Health Risk Manag 2022; 18:783-791. [PMID: 36212553 PMCID: PMC9532254 DOI: 10.2147/vhrm.s380463] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 09/17/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Khalid S Ibrahim
- Division of Cardiac Surgery, Department of General Surgery and Urology, College of Medicine, Jordan University of Science and Technology, Irbid, Jordan
- Correspondence: Khalid S Ibrahim, Division of Cardiac Surgery, Department of General Surgery and Urology, College of Medicine, Jordan University of Science and Technology, Irbid, Jordan, Tel +962 79 6 42 77 00, Email
| | - Khalid A Kheirallah
- Department of Public Health and Community Health, College of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Mahmoud A Megdadi
- Department of Public Health and Community Health, College of Medicine, Jordan University of Science and Technology, Irbid, Jordan
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Keebayoon A, Mungmunpuntipantip R, Wiwanitkit V. Reply to: "The spoils of war and the long-term spoiling of health conditions of entire nations". Atherosclerosis 2022; 355:83. [PMID: 35871856 PMCID: PMC9595327 DOI: 10.1016/j.atherosclerosis.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 07/06/2022] [Indexed: 01/14/2023]
Affiliation(s)
| | | | - Viroj Wiwanitkit
- A Joseph Ayobaalola University, Ikeji-Arakeji, Nigeria; Patil University, Pune, India; Faculty of Medicine, University of Nis, Serbia
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Ou Z, Yu D, Liang Y, Wu J, He H, Li Y, He W, Gao Y, Wu F, Chen Q. Global burden of rheumatic heart disease: trends from 1990 to 2019. Arthritis Res Ther 2022; 24:138. [PMID: 35690787 PMCID: PMC9188068 DOI: 10.1186/s13075-022-02829-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 05/29/2022] [Indexed: 11/17/2022] Open
Abstract
Background Rheumatic heart disease (RHD) is a critical public health issue worldwide, and its epidemiological patterns have changed over the decades. This article aimed to estimate the global trends of RHD, and attributable risks from 1990 to 2019. Methods Data on RHD burden were explored from the Global Burden of Disease Study 2019. Trends of the RHD burden were estimated using the estimated annual percentage change (EAPC) and age-standardized rate (ASR). Results During 1990–2019, increasing trends in the ASR of incidence and prevalence of RHD were observed worldwide, with the respective EAPCs of 0.58 (95% confidence interval [CI] 0.52 to 0.63) and 0.57 (95%CI 0.50 to 0.63). Meanwhile, increasing trends commonly occurred in low and middle Socio-Demographic Index (SDI) regions and countries. The largest increasing trends in the ASR of incidence and prevalence were seen in Fiji, with the respective EAPCs being 2.17 (95%CI 1.48 to 2.86) and 2.22 (95%CI 1.53 to 2.91). However, death and disability-adjusted life years (DALYs) due to RHD showed pronounced decreasing trends of ASR globally, in which the EAPCs were − 2.98 (95%CI − 3.03 to − 2.94) and − 2.70 (95%CI − 2.75 to − 2.65), respectively. Meanwhile, decreasing trends were also observed in all SDI areas and geographic regions. The largest decreasing trends of death were observed in Thailand (EAPC = − 9.55, 95%CI − 10.48 to − 8.61). Among the attributable risks, behavioral risk-related death and DALYs caused by RHD had pronounced decreasing trends worldwide and in SDI areas. Conclusions Pronounced decreasing trends of death and DALYs caused by RHD were observed in regions and countries from 1990 to 2019, but the RHD burden remains a substantial challenge globally. The results would inform the strategies for more effective prevention and control of RHD. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-022-02829-3.
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Affiliation(s)
- Zejin Ou
- Department of Central Laboratory, Guangzhou Twelfth People's Hospital, Guangzhou, China.,Key Laboratory of Occupational Environment and Health, Guangzhou Twelfth People's Hospital, Guangzhou, China
| | - Danfeng Yu
- Department of MICU, Guangdong Women and Children Hospital, Guangzhou, China
| | - Yuanhao Liang
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Jinhua Wu
- Department of Obstetrics, Guangdong Women and Children Hospital, Guangzhou, China
| | - Huan He
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Yongzhi Li
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Wenqiao He
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Yuhan Gao
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Fei Wu
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Qing Chen
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, 510515, China.
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Mutagaywa RK, Mwakigonja A, Chillo P, Ngaiza A, Byomuganyizi M, Fundikira L, Cramer MJ, Kwesigabo G, Kamuhabwa A, Chamuleau S. Histopathological evaluation of chronic rheumatic mitral valve stenosis: the association with clinical presentation, pathogenesis and management at a National Cardiac Institute, Tanzania. Cardiovasc Pathol 2022; 60:107434. [DOI: 10.1016/j.carpath.2022.107434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 05/10/2022] [Accepted: 05/10/2022] [Indexed: 11/17/2022] Open
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Schoenfuss ES. Diagnosis, management, and prevention of acute rheumatic fever in the United States. JAAPA 2022; 35:21-27. [PMID: 35421873 DOI: 10.1097/01.jaa.0000824960.82938.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT Acute rheumatic fever is a multisystem autoimmune disease caused by infection with group A streptococcus. The condition most commonly affects children ages 5 to 14 years who are from low-income populations. The diagnosis is clinical; however, the 2015 Jones Criteria can help support it. Acute rheumatic fever poses a significant health risk secondary to rheumatic heart disease. Although acute rheumatic fever is rare in the United States, outbreaks still occur, and certain populations continue to be at increased risk. This article describes how to identify acute rheumatic fever and provides prompt management and prevention strategies to reduce patient risk for lifelong complications.
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Affiliation(s)
- Erin S Schoenfuss
- Erin S. Schoenfuss practices at Aspirus Medical Group in Weston, Wis., and is a doctor of medical science candidate at A.T. Still University's Arizona School of Health Sciences in Mesa, Ariz. The author has disclosed no potential conflicts of interest, financial or otherwise
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Okuno T, Tomii D, Buffle E, Lanz J, Ryffel C, Demirel C, Hashemi S, Hagemeyer D, Papadis A, Heg D, Praz F, Stortecky S, Windecker S, Pilgrim T. Transcatheter aortic valve implantation in patients with rheumatic aortic stenosis. Heart 2022; 108:1225-1233. [DOI: 10.1136/heartjnl-2021-320531] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 03/01/2022] [Indexed: 12/25/2022] Open
Abstract
BackgroundRheumatic heart disease (RHD) accounts for the highest number of deaths from valvular heart disease globally. Yet, rheumatic aortic stenosis (AS) was excluded from landmark studies investigating the safety and efficacy of transcatheter aortic valve implantation (TAVI). We aimed to describe the clinical and anatomical characteristics of patients with rheumatic AS undergoing TAVI, and to compare procedural and clinical outcomes with patients undergoing TAVI for degenerative AS.MethodsIn a prospective TAVI registry, patients with rheumatic AS were identified based on International Classification of Diseases version 10 codes and/or a documented history of acute rheumatic fever and/or the World Heart Federation criteria for echocardiographic diagnosis of RHD, and were propensity score-matched in a 1:4 ratio to patients with degenerative AS.ResultsAmong 2329 patients undergoing TAVI, 105 (4.5%) had rheumatic AS. Compared with patients with degenerative AS, patients with rheumatic AS were more commonly female, older, had higher surgical risk and more commonly suffered from multivalvular heart disease. In the unmatched cohort, both technical success (85.7% vs 85.9%, p=0.887) and 1-year cardiovascular mortality (10.0% vs 8.6%; HR 1.16, 95% CI 0.61 to 2.18, p=0.656) were comparable between patients with rheumatic and degenerative AS. In contrast, patients with rheumatic AS had lower rates of 30-day and 1-year cardiovascular mortality compared with matched patients with degenerative AS (1.9% vs 8.9%, adjusted HR (HRadj) 0.18, 95% CI 0.04 to 0.80, p=0.024; and 10.0% vs 20.3%, HRadj 0.44, 95% CI 0.24 to 0.84, p=0.012, respectively).ConclusionTAVI may be a safe and effective treatment strategy for selected elderly patients with rheumatic AS.Trial registration numberNCT01368250.
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Xu Y, Han D, Huang T, Zhang X, Lu H, Shen S, Lyu J, Wang H. Predicting ICU Mortality in Rheumatic Heart Disease: Comparison of XGBoost and Logistic Regression. Front Cardiovasc Med 2022; 9:847206. [PMID: 35295254 PMCID: PMC8918628 DOI: 10.3389/fcvm.2022.847206] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 01/25/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundRheumatic heart disease (RHD) accounts for a large proportion of Intensive Care Unit (ICU) deaths. Early prediction of RHD can help with timely and appropriate treatment to improve survival outcomes, and the XGBoost machine learning technology can be used to identify predictive factors; however, its use has been limited in the past. We compared the performance of logistic regression and XGBoost in predicting hospital mortality among patients with RHD from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database.MethodsThe patients with RHD in the MIMIC-IV database were divided into two groups retrospectively according to the availability of data and its clinical significance based on whether they survived or died. Backward stepwise regression was used to analyze the independent factors influencing patients with RHD, and to compare the differences between the two groups. The XGBoost algorithm and logistic regression were used to establish two prediction models, and the areas under the receiver operating characteristic curves (AUCs) and decision-curve analysis (DCA) were used to test and compare the models. Finally, DCA and the clinical impact curve (CIC) were used to validate the model.ResultsData on 1,634 patients with RHD were analyzed, comprising 207 who died during hospitalization and 1,427 survived. According to estimated results for the two models using AUCs [0.838 (95% confidence interval = 0.786–0.891) and 0.815 (95% confidence interval = 0.765–0.865)] and DCA, the logistic regression model performed better. DCA and CIC verified that the logistic regression model had convincing predictive value.ConclusionsWe used logistic regression analysis to establish a more meaningful prediction model for the final outcome of patients with RHD. This model might be clinically useful for patients with RHD and help clinicians to provide detailed treatments and precise management.
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Affiliation(s)
- Yixian Xu
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Didi Han
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Tao Huang
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiaoshen Zhang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Hua Lu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Si Shen
- Department of Radiology, Medical Imaging Center, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jun Lyu
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangzhou, China
- *Correspondence: Jun Lyu
| | - Hao Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Hao Wang
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21
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Hawkins RB, Strobel RJ, Mehaffey JH, Quader MA, Joseph M, Ailawadi G. Contemporary prevalence and outcomes of rheumatic mitral valve surgery. J Card Surg 2022; 37:1868-1874. [PMID: 35220630 PMCID: PMC9303441 DOI: 10.1111/jocs.16369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/18/2022] [Accepted: 02/04/2022] [Indexed: 12/01/2022]
Abstract
Objective Rheumatic mitral valve disease is often viewed as a historic disease in North America with limited contemporary data. We hypothesized that rheumatic pathology remains common and has worse short‐term outcomes and higher resource utilization compared to other mitral valve pathologies. Method All patients undergoing mitral valve repair or replacement (2011–2019) were extracted from a regional Society of Thoracic Surgeons database. Resource utilization metrics included inflation‐adjusted hospital costs. Patients were stratified by mitral valve pathology for univariate analysis. Result Out of the 6625 mitral valve procedures, 835 (12.6%) were from rheumatic disease, a proportion that incrementally increased over time (+0.39% per year, p = .032). Among 19 hospitals, there was high variability in number of rheumatic mitral operations (median: 22, interquartile range [IQR]: 5–80) and rate of rheumatic repairs (median: 3%, IQR: 0%–6%). Rheumatic patients were younger (62 vs. 65, p < .0001), more often female (75% vs. 43%, p < .001) and with greater burden of heart failure, multi‐valve disease, and lung disease, but less coronary disease. There were no differences in operative mortality (5.2% vs. 5.0%, p = .85) or major morbidity (22.2% vs. 21.8%, p = .83). However, resource utilization was higher for rheumatic patients, including more frequent transfusions (43% vs. 39%, p = .012), longer ICU (73 vs. 64 h, p < .0001) and postoperative length of stay (8 vs. 7 days, p < .0001). Conclusions Rheumatic mitral disease accounts for a meaningful (12%) and rising percentage of mitral valve operations in the region, with high variability among hospitals. Rheumatic mitral surgery yielded similar short‐term outcomes compared to nonrheumatic pathology, but required greater resource utilization.
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Affiliation(s)
- Robert B. Hawkins
- Division of Thoracic and Cardiovascular Surgery University of Virginia Charlottesville Virginia USA
| | - Raymond J. Strobel
- Division of Thoracic and Cardiovascular Surgery University of Virginia Charlottesville Virginia USA
| | - J. Hunter Mehaffey
- Division of Thoracic and Cardiovascular Surgery University of Virginia Charlottesville Virginia USA
| | - Mohammed A. Quader
- Division of Cardiothoracic Surgery Virginia Commonwealth University Richmond Virginia USA
| | - Mark Joseph
- Division of Cardiovascular and Thoracic Surgery Carilion Clinic/Virginia Tech Carilion School of Medicine Roanoke Virginia USA
| | - Gorav Ailawadi
- Department of Cardiac Surgery University of Michigan Ann Arbor Michigan USA
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22
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Abstract
As populations age worldwide, the burden of valvular heart disease has grown exponentially, and so has the proportion of affected women. Although rheumatic valve disease is declining in high-income countries, degenerative age-related causes are rising. Calcific aortic stenosis and degenerative mitral regurgitation affect a significant proportion of elderly women, particularly those with comorbidities. Women with valvular heart disease have been underrepresented in many of the landmark studies which form the basis for guideline recommendations. As a consequence, surgical referrals in women have often been delayed, with worse postoperative outcomes compared with men. As described in this review, a more recent effort to include women in research studies and clinical trials has increased our knowledge about sex-based differences in epidemiology, pathophysiology, diagnostic criteria, treatment options, outcomes, and prognosis.
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Affiliation(s)
| | - Joanna Chikwe
- Department of Cardiac Surgery, Smidt Heart Institute at Cedars-Sinai, Los Angeles, CA
| | - Rebecca T. Hahn
- Division of Cardiology, New York Presbyterian Columbia Heart Valve Center, Columbia University Medical Center, New York, NY
| | - Judy W. Hung
- Division of Cardiology and Harvard Medical School, Massachusetts General Hospital, Boston, MA
| | - Francesca N. Delling
- Division of Cardiology, University of California San Francisco, San Francisco, CA
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23
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Thomas K, Calabrese C, Vassilopoulos D. Editorial: Infection-Related Rheumatic Diseases. Front Med (Lausanne) 2021; 8:779773. [PMID: 34746198 PMCID: PMC8568794 DOI: 10.3389/fmed.2021.779773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 09/29/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
- Konstantinos Thomas
- 4th Department of Internal Medicine, National and Kapodistrian University of Athens School of Medicine, Attikon University General Hospital, Chaidari, Greece
| | - Cassandra Calabrese
- Department of Rheumatic and Immunologic Diseases, Orthopedic & Rheumatologic Institute, Cleveland Clinic, Cleveland, OH, United States.,Department of Infectious Disease, Cleveland Clinic, Cleveland, OH, United States
| | - Dimitrios Vassilopoulos
- Joint Rheumatology Program, Clinical Immunology-Rheumatology Unit, 2nd Department of Medicine and Laboratory, National and Kapodistrian University of Athens School of Medicine, Athens, Greece
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24
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Mougrabi MM, Aljuaid RS, Alrabie AD, Althumali NK, Alkhaldi LH, Alotaibi WD. Awareness of rheumatic fever and rheumatic heart disease among the population in taif, Saudi Arabia 2020. J Family Med Prim Care 2021; 10:3056-3063. [PMID: 34660447 PMCID: PMC8483125 DOI: 10.4103/jfmpc.jfmpc_2550_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 02/17/2021] [Accepted: 04/04/2021] [Indexed: 11/04/2022] Open
Abstract
Objective Studies assessing knowledge about rheumatic fever (RF) and rheumatic heart disease (RHD) are scarce in KSA. The aim of this study was to assess the awareness about ARF and RHD among the population at Taif city, Saudi Arabia. Methods A cross-sectional study was done on 716 of residents of Taif city. A pre-designed questionnaire that collected data about the participants' demographic characters, their history of sore throat and medication used, participants' knowledge about cause and complications of sore throat, its relation to RHD, treatment, primary and secondary prevention of RHD. Results 77% of the participants had a history of sore throat, of them 58.4% took antibiotics as a self-medication. A significant higher prevalence of previous history of sore throat was present among 42-50-year-old females, graduated, and those with an income above 10000 SR. Participants with an age of 18-24 years and graduated, had significantly higher percent of those who knew about: cause and complications of sore throat, sore throat is associated with heart diseases, and if treating sore throat can prevent heart disease. Females had a significantly higher percent of those who knew about: complications of sore throat, being extremely aware of that primary prevention of sore throat by using antibiotics such as penicillin and being extremely aware of secondary prevention of recurrence RF and decrease progression of RHD. Conclusion Raising awareness about ARF and RHD through health education programs is needed.
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Affiliation(s)
- Mohammed M Mougrabi
- Consultant of Invasive Cardiology, King Faisal Medical Center Taif - Saudi Arabia, Saudi Arabia
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25
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Vafaeezadeh M, Behnam H, Hosseinsabet A, Gifani P. A deep learning approach for the automatic recognition of prosthetic mitral valve in echocardiographic images. Comput Biol Med 2021; 133:104388. [PMID: 33864972 DOI: 10.1016/j.compbiomed.2021.104388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 04/06/2021] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
The first step in the automatic evaluation of the cardiac prosthetic valve is the recognition of such valves in echocardiographic images. This research surveyed whether a deep convolutional neural network (DCNN) could improve the recognition of prosthetic mitral valve in conventional 2D echocardiographic images. An efficient intervention to decrease the misreading rate of the prosthetic mitral valve is required for non-expert cardiologists. This intervention could serve as a section of a fully-automated analysis chain, alleviate the cardiologist's workload, and improve precision and time management, especially in an emergent situation. Additionally, it might be suitable for pre-labeling large databases of unclassified images. We, therefore, introduce a large publicly-available annotated dataset for the purpose of prosthetic mitral valve recognition. We utilized 2044 comprehensive non-stress transthoracic echocardiographic studies. Totally, 1597 patients had natural mitral valves and 447 patients had prosthetic valves. Each case contained 1 cycle of echocardiographic images from the apical 4-chamber (A4C) and the parasternal long-axis (PLA) views. Thirteen versions of the state-of-the-art models were independently trained, and the ensemble predictions were performed using those versions. For the recognition of prosthetic mitral valves from natural mitral valves, the area under the receiver-operating characteristic curve (AUC) made by the deep learning algorithm was similar to that made by cardiologists (0.99). In this research, EfficientNetB3 architecture in the A4C view and the EfficientNetB4 architecture in the PLA view were the best models among the other pre-trained DCNN models.
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Affiliation(s)
- Majid Vafaeezadeh
- Biomedical Engineering Department, Iran University of Science and Technology, Tehran, Iran
| | - Hamid Behnam
- Biomedical Engineering Department, Iran University of Science and Technology, Tehran, Iran.
| | - Ali Hosseinsabet
- Cardiology Department, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parisa Gifani
- Medical Sciences and Technologies Department,Science and Research Branch, Islamic Azad University, Tehran, Iran
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26
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Mutagaywa RK, Wind AM, Kamuhabwa A, Cramer MJ, Chillo P, Chamuleau S. Rheumatic heart disease anno 2020: Impacts of gender and migration on epidemiology and management. Eur J Clin Invest 2020; 50:e13374. [PMID: 32789848 PMCID: PMC7757241 DOI: 10.1111/eci.13374] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/19/2020] [Accepted: 07/27/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND The epidemiology and management of diseases can be influenced by social demographic factors. Gender and migration are among these factors. METHODS We aimed at reviewing the impacts of gender and migration on rheumatic heart disease (RHD) epidemiology and management by a nonsystematic literature review of published studies on RHD worldwide. Our PubMed search terms included RHD pathophysiology, diagnosis, complications, management or prevention, combined with words 'rheumatic mitral stenosis (MS)', 'outcomes after percutaneous balloon mitral valvuloplasty (PBMV)', 'gender or sex difference' and 'migration'. The reporting of this study conforms to SANRA (the Scale for Assessment of Narrative Review Articles) guidelines. RESULTS We retrieved eight studies about the impact of sex on outcomes after PBMV. All of these studies showed a female predominance for RHD. Two studies showed that there is no impact, three studies showed female sex as a predictor of poor outcomes, and the other three showed male sex a predictor of poor outcomes. Although RHD is reported to be eradicated in the developed countries, 2.1% of refugees recently screened for RHD in Italy were found to have subclinical RHD. This prevalence is similar to those found in India (2.0%), Cambodia (2.2%) and Mozambique (3%). CONCLUSIONS There are contradicting results for outcomes after PBMV between males and females. It is not clear whether sex difference plays a role in pathophysiology, diagnosis, management and prognosis of MS. Migration has impacts on epidemiology and management of RHD. Further studies are required in these two fields to explore their relationship to RHD.
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Affiliation(s)
- Reuben K Mutagaywa
- School of Medicine, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, Tanzania.,Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Anna-Maria Wind
- Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Apolinary Kamuhabwa
- School of Pharmacy, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, Tanzania
| | - Maarten J Cramer
- Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Pilly Chillo
- School of Medicine, Muhimbili University of Health and Allied Sciences, Dar Es Salaam, Tanzania
| | - Steven Chamuleau
- Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, University Medical Centre Utrecht, Utrecht, The Netherlands.,Division of Heart and Lung, Department of Cardiology, Faculty of Medicine, Amsterdam University Medical Centre, Amsterdam, The Netherlands
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