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1.
Trop Med Int Health ; 25(11): 1408-1415, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32799403

RESUMO

OBJECTIVES: To present epidemiological data on rheumatic heart disease (RHD), the most common acquired heart disease in children and young adults in low- and middle-income countries, for North-Central Nigeria. METHODS: In this pilot study, we conducted clinical and echocardiography screening on a cross section of randomly selected secondary schoolchildren in Jos, North-Central Nigeria, from March to September 2016. For outcome classification into borderline or definite RHD, we performed a confirmatory echocardiography using the World Heart Federation criteria for those suspected to have RHD from the screening. RESULTS: A total of 417 secondary schoolchildren were screened, of whom 247 (59.2%) were female. The median age was 14 years (IQR: 13-15). Clinical screening detected 8/417 children, whereas screening echocardiography detected 42/417 suspected cases of RHD. Definitive echocardiography confirmed 9/417 with RHD corresponding to a prevalence of 21.6 per 1000 (95% CI, 6.7-36.5). All but one of the confirmed RHD cases (8/9) were borderline RHD corresponding to a prevalence of 19.2 per 1000 (95% CI, 8.3-37.5) for borderline RHD and 2.4 per 1000 (95% CI, 0.1-13.3) for definite RHD. RHD was more common in boys and cardiac auscultation missed over 50% of the cases. CONCLUSIONS: This study showed a high prevalence of RHD among secondary schoolchildren in North-Central Nigeria with a vast predominance of asymptomatic borderline lesions. Larger school-based echocardiography screening using portable or handheld echocardiography aimed at early detection of subclinical RHD should be adopted.


OBJECTIFS: Présenter des données épidémiologiques sur la cardiopathie rhumatismale (CR), la maladie cardiaque acquise la plus courante chez les enfants et les jeunes adultes dans les pays à revenus faibles et intermédiaires, pour le centre-nord du Nigéria. MÉTHODES: Dans cette étude pilote, nous avons effectué un dépistage clinique et échocardiographique sur un échantillon transversal d'élèves du secondaire sélectionnés aléatoirement à Jos, dans le centre-nord du Nigéria, de mars à septembre 2016. Pour la classification des résultats en CR limite ou définitive, nous avons effectué une échocardiographie de confirmation en utilisant les critères de la Fédération Mondiale du Cœur pour les personnes suspectées d'avoir une CR lors du dépistage. RÉSULTATS: Au total, 417 élèves du secondaire ont été dépistés, dont 247 (59,2%) étaient des filles. L'âge médian était de 14 ans (IQR: 13-15). Un dépistage clinique a détecté 8/417 enfants, tandis qu'un dépistage par échocardiographie a détecté 42/417 cas suspects de CR. L'échocardiographie a confirmé une CR définitive chez 9/417, correspondant à une prévalence de 21,6 pour 1000 (IC95%: 6,7 à 36,5). Tous les cas confirmés de CR sauf un (8/9) étaient limites, correspondant à une prévalence de 19,2 pour 1000 (IC95%: 8,3 à 37,5) pour une CR limite et 2,4 pour 1000 (IC95%: 0,1 à 13,3) pour une CR définitive. La CR était plus fréquente chez les garçons et l'auscultation cardiaque a manqué plus de 50% des cas. CONCLUSIONS: Cette étude a montré une prévalence élevée de CR parmi les enfants du secondaire dans le centre-nord du Nigeria avec une forte prédominance de lésions asymptomatiques limites. Un dépistage échocardiographique à plus grande échelle en milieu scolaire utilisant une échocardiographie portable ou manuelle visant à la détection précoce de la CR subclinique devrait être adopté.


Assuntos
Programas de Rastreamento/estatística & dados numéricos , Cardiopatia Reumática/epidemiologia , Adolescente , Criança , Pré-Escolar , Estudos Transversais , Ecocardiografia , Feminino , Auscultação Cardíaca , Humanos , Masculino , Nigéria/epidemiologia , Projetos Piloto , Prevalência , Cardiopatia Reumática/diagnóstico por imagem , Instituições Acadêmicas
2.
Circulation ; 134(19): 1456-1466, 2016 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-27702773

RESUMO

BACKGROUND: There are few contemporary data on the mortality and morbidity associated with rheumatic heart disease or information on their predictors. We report the 2-year follow-up of individuals with rheumatic heart disease from 14 low- and middle-income countries in Africa and Asia. METHODS: Between January 2010 and November 2012, we enrolled 3343 patients from 25 centers in 14 countries and followed them for 2 years to assess mortality, congestive heart failure, stroke or transient ischemic attack, recurrent acute rheumatic fever, and infective endocarditis. RESULTS: Vital status at 24 months was known for 2960 (88.5%) patients. Two-thirds were female. Although patients were young (median age, 28 years; interquartile range, 18-40), the 2-year case fatality rate was high (500 deaths, 16.9%). Mortality rate was 116.3/1000 patient-years in the first year and 65.4/1000 patient-years in the second year. Median age at death was 28.7 years. Independent predictors of death were severe valve disease (hazard ratio [HR], 2.36; 95% confidence interval [CI], 1.80-3.11), congestive heart failure (HR, 2.16; 95% CI, 1.70-2.72), New York Heart Association functional class III/IV (HR, 1.67; 95% CI, 1.32-2.10), atrial fibrillation (HR, 1.40; 95% CI, 1.10-1.78), and older age (HR, 1.02; 95% CI, 1.01-1.02 per year increase) at enrollment. Postprimary education (HR, 0.67; 95% CI, 0.54-0.85) and female sex (HR, 0.65; 95% CI, 0.52-0.80) were associated with lower risk of death. Two hundred and four (6.9%) patients had new congestive heart failure (incidence, 38.42/1000 patient-years), 46 (1.6%) had a stroke or transient ischemic attack (8.45/1000 patient-years), 19 (0.6%) had recurrent acute rheumatic fever (3.49/1000 patient-years), and 20 (0.7%) had infective endocarditis (3.65/1000 patient-years). Previous stroke and older age were independent predictors of stroke/transient ischemic attack or systemic embolism. Patients from low- and lower-middle-income countries had significantly higher age- and sex-adjusted mortality than patients from upper-middle-income countries. Valve surgery was significantly more common in upper-middle-income than in lower-middle- or low-income countries. CONCLUSIONS: Patients with clinical rheumatic heart disease have high mortality and morbidity despite being young; those from low- and lower-middle-income countries had a poorer prognosis associated with advanced disease and low education. Programs focused on early detection and the treatment of clinical rheumatic heart disease are required to improve outcomes.


Assuntos
Endocardite/mortalidade , Insuficiência Cardíaca/mortalidade , Sistema de Registros , Cardiopatia Reumática/mortalidade , Acidente Vascular Cerebral/mortalidade , Adolescente , Adulto , África/epidemiologia , Fatores Etários , Ásia/epidemiologia , Países em Desenvolvimento , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade
3.
Eur Heart J ; 36(18): 1115-22a, 2015 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-25425448

RESUMO

AIMS: Rheumatic heart disease (RHD) accounts for over a million premature deaths annually; however, there is little contemporary information on presentation, complications, and treatment. METHODS AND RESULTS: This prospective registry enrolled 3343 patients (median age 28 years, 66.2% female) presenting with RHD at 25 hospitals in 12 African countries, India, and Yemen between January 2010 and November 2012. The majority (63.9%) had moderate-to-severe multivalvular disease complicated by congestive heart failure (33.4%), pulmonary hypertension (28.8%), atrial fibrillation (AF) (21.8%), stroke (7.1%), infective endocarditis (4%), and major bleeding (2.7%). One-quarter of adults and 5.3% of children had decreased left ventricular (LV) systolic function; 23% of adults and 14.1% of children had dilated LVs. Fifty-five percent (n = 1761) of patients were on secondary antibiotic prophylaxis. Oral anti-coagulants were prescribed in 69.5% (n = 946) of patients with mechanical valves (n = 501), AF (n = 397), and high-risk mitral stenosis in sinus rhythm (n = 48). However, only 28.3% (n = 269) had a therapeutic international normalized ratio. Among 1825 women of childbearing age (12-51 years), only 3.6% (n = 65) were on contraception. The utilization of valvuloplasty and valve surgery was higher in upper-middle compared with lower-income countries. CONCLUSION: Rheumatic heart disease patients were young, predominantly female, and had high prevalence of major cardiovascular complications. There is suboptimal utilization of secondary antibiotic prophylaxis, oral anti-coagulation, and contraception, and variations in the use of percutaneous and surgical interventions by country income level.


Assuntos
Cardiopatia Reumática/terapia , Administração Oral , Adulto , Distribuição por Idade , Antibacterianos/uso terapêutico , Antibioticoprofilaxia , Anticoagulantes/administração & dosagem , Estudos Transversais , Países em Desenvolvimento , Medicina Baseada em Evidências , Feminino , Saúde Global , Doenças das Valvas Cardíacas/epidemiologia , Doenças das Valvas Cardíacas/etiologia , Doenças das Valvas Cardíacas/terapia , Humanos , Masculino , Penicilinas/uso terapêutico , Projetos Piloto , Estudos Prospectivos , Cardiopatia Reumática/complicações , Cardiopatia Reumática/epidemiologia , Distribuição por Sexo
4.
Int J Infect Dis ; 139: 92-100, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38056689

RESUMO

OBJECTIVES: Chikungunya virus (CHIKV), a reemerging global public health concern, which causes acute febrile illness, rash, and arthralgia and may affect both mothers and infants during pregnancy. Mother-to-child transmission (MTCT) of CHIKV in Africa remains understudied. METHODS: Our cohort study screened 1006 pregnant women with a Zika/dengue/CHIKV rapid test at two clinics in Nigeria between 2019 and 2022. Women who tested positive for the rapid test were followed through their pregnancy and their infants were observed for 6 months, with a subset tested by reverse transcription-polymerase chain reaction (RT-PCR) and neutralization, to investigate seropositivity rates and MTCT of CHIKV. RESULTS: Of the 1006, 119 tested positive for CHIKV immunoglobulin (Ig)M, of which 36 underwent detailed laboratory tests. While none of the IgM reactive samples were RT-PCR positive, 14 symptomatic pregnant women were confirmed by CHIKV neutralization test. Twelve babies were followed with eight normal and four abnormal outcomes, including stillbirth, cleft lip/palate with microcephaly, preterm delivery, polydactyly with sepsis, and jaundice. CHIKV IgM testing identified three possible antepartum transmissions. CONCLUSION: In Nigeria, we found significant CHIKV infection in pregnancy and possible CHIKV antepartum transmission associated with birth abnormalities.


Assuntos
Febre de Chikungunya , Vírus Chikungunya , Fenda Labial , Fissura Palatina , Dengue , Infecção por Zika virus , Zika virus , Lactente , Recém-Nascido , Humanos , Feminino , Gravidez , Vírus Chikungunya/genética , Gestantes , Estudos de Coortes , Nigéria/epidemiologia , Fenda Labial/complicações , Transmissão Vertical de Doenças Infecciosas , Fissura Palatina/complicações , Febre de Chikungunya/diagnóstico , Febre de Chikungunya/epidemiologia , Febre de Chikungunya/complicações , Infecção por Zika virus/diagnóstico , Infecção por Zika virus/epidemiologia , Natimorto , Imunoglobulina M
5.
medRxiv ; 2023 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-37609234

RESUMO

The adverse impact of Zika (ZIKV), dengue (DENV), and chikungunya (CHIKV) virus infection in pregnancy has been recognized in Latin America and Asia but is not well studied in Africa. In Nigeria, we screened 1006 pregnant women for ZIKV, DENV and CHIKV IgM/IgG by rapid test (2019-2022). Women with acute infection were recruited for prospective study and infants were examined for any abnormalities from delivery through six months. A subset of rapid test-reactive samples were confirmed using virus-specific ELISAs and neutralization assays. Prevalence of acute infection (IgM+) was 3.8%, 9.9% and 11.8% for ZIKV, DENV and CHIKV, respectively; co-infections represented 24.5% of all infections. Prevalence in asymptomatic women was twice the level of symptomatic infection. We found a significant association between acute maternal ZIKV/DENV/CHIKV infection and any gross abnormal birth outcome (p=0.014). Further prospective studies will contribute to our understanding of the clinical significance of these endemic arboviruses in Africa.

6.
medRxiv ; 2023 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-37609297

RESUMO

Chikungunya virus (CHIKV) has become a global public health concern since the reemergence of the Indian Ocean lineage and expansion of the Asian genotype. CHIKV infection causes acute febrile illness, rash, and arthralgia and during pregnancy may affect both mothers and infants. The mother-to-child transmission (MTCT) of CHIKV in Africa remains understudied. We screened 1006 pregnant women at two clinics in Nigeria between 2019 and 2022 and investigated the prevalence and MTCT of CHIKV. Of the 1006, 119 tested positive for CHIKV IgM, of which 36 underwent detailed laboratory tests. While none of the IgM reactive samples were RT-PCR positive, 14 symptomatic pregnant women were confirmed by CHIKV neutralization test. Twelve babies were followed with 8 normal and 4 abnormal outcomes, including stillbirth, cleft lip/palate with microcephaly, preterm delivery, polydactyly with sepsis and jaundice. CHIKV IgM testing identified 3 antepartum transmissions, further studies will determine its impact in antepartum infection.

7.
J Clin Virol ; 169: 105616, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37944259

RESUMO

BACKGROUND: The adverse impact of Zika (ZIKV), dengue (DENV), and chikungunya (CHIKV) virus infection in pregnancy has been recognized in Latin America and Asia but is not well studied in Africa. Although originally discovered in sub-Saharan Africa the non-specific clinical presentation of arbovirus infection may have hampered our detection of adverse clinical outcomes and outbreak. OBJECTIVE: This prospective study of arbovirus infection in pregnant women in north-central Nigeria sought to characterize the prevalence of acute arbovirus infection and determine the impact on pregnancy and infant outcomes. METHODS: In Nigeria, we screened 1006 pregnant women for ZIKV, DENV and CHIKV IgM/IgG by rapid test (2019-2022). Women with acute infection were recruited for prospective study and infants were examined for any abnormalities from delivery through six months. A subset of rapid test-reactive samples were confirmed using virus-specific ELISAs and neutralization assays. RESULTS: The prevalence of acute infection (IgM+) was 3.8 %, 9.9 % and 11.8 % for ZIKV, DENV and CHIKV, respectively; co-infections represented 24.5 % of all infections. The prevalence in asymptomatic women was twice the level of symptomatic infection. We found a significant association between acute maternal ZIKV/DENV/CHIKV infection and any gross abnormal birth outcome (p = 0.014). CONCLUSIONS: Over three rainy seasons, regular acute infection with ZIKV, DENV, and CHIKV was observed with significantly higher rates in pregnant women without symptoms. The potential association arbovirus infection with abnormal birth outcome warrants further prospective study to ascertain the clinical significance of these endemic arboviruses in Africa.


Assuntos
Infecções por Arbovirus , Arbovírus , Febre de Chikungunya , Vírus Chikungunya , Vírus da Dengue , Dengue , Infecção por Zika virus , Zika virus , Lactente , Humanos , Feminino , Gravidez , Infecção por Zika virus/complicações , Infecção por Zika virus/epidemiologia , Infecção por Zika virus/diagnóstico , Dengue/diagnóstico , Gestantes , Estudos Prospectivos , Nigéria/epidemiologia , Febre de Chikungunya/diagnóstico , Infecções por Arbovirus/epidemiologia , Imunoglobulina M
8.
Cardiovasc J Afr ; 32(1): 21-27, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33605299

RESUMO

BACKGROUND: There are few reports of the prevalence of CHD in the neonatal period in sub-Saharan Africa. The only available study in Nigeria was carried out before the widespread availability of echocardiography in the country. We sought to determine the prevalence and spectrum of congenital heart defects (CHD) among neonates in Jos, Nigeria. METHODS: This cross-sectional study enrolled neonates less than one week of age from the two largest hospitals and their immunisation centres. Relevant information was obtained and an echocardiogram was performed on each neonate. RESULTS: There were 3 857 neonates recruited over a two-year period; male-to-female ratio was 1.1:1. A total of 111 babies had CHD, with a prevalence of 28.8 per 1 000. Sixty-four neonates had mild CHD, with a prevalence of 16.6 per 1 000, while moderate and severe CHD were found in 27 (7.0 per 1 000) and 20 (5.2 per 1 000), respectively. CONCLUSIONS: CHD is prevalent in Nigerian neonates and there is therefore a need for advocacy to improve access to its diagnosis at birth for appropriate management.


Assuntos
Ecocardiografia/métodos , Cardiopatias Congênitas/diagnóstico por imagem , Estudos Transversais , Feminino , Cardiopatias Congênitas/epidemiologia , Humanos , Lactente , Recém-Nascido , Masculino , Nigéria/epidemiologia , Prevalência
9.
PLoS One ; 15(3): e0229987, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32214332

RESUMO

BACKGROUND: Events in pregnancy play an important role in predisposing the newborn to the risk of developing CHD. This study evaluated the association between maternal preeclampsia and her offspring risk of CHD. METHODS: This is a cohort study of 90 sex-matched neonates (45 each born to women with preeclampsia and normal pregnancy) in Jos, Nigeria. Anthropometry was taken shortly after delivery using standard protocols. Echocardiography was performed within 24 hours of life and repeated 7 and 28 days later. SPSS version 25 was used in all analyses. Statistical significance was set at p<0.05. RESULTS: Congenital heart disease (CHD) was observed in 27 (30.0%) of newborns of women with preeclampsia compared with 11 (12.1%) of newborns without preeclampsia (p<0.001) at the end of 7 days and in 19 (21.1%) of newborns of women with preeclampsia and 3 (3.3%) of newborns of women without preeclampsia by the end of the 4th week of life (p<0.001). Overall, ASD (4 newborns), PDA (21 newborns), patent foramen ovale (14 newborns) and VSD (2 newborns) were the prevalent lesions found among all the newborns studied in the first week of life. Isolated atrial and ventricular septal defects were seen in 4 (4.4%) of the newborns of women with preeclampsia. Being the infant of a woman with preeclampsia was associated with about 8-fold increased risk of having CHD (OR = 7.9, 95% CI = 2.5-24.9, p<0.001). CONCLUSION: CHD may be more common in newborns of women with preeclampsia underscoring the need for fetal and newborn screening for CHD in women with preeclampsia so as to improve their infant's well being.


Assuntos
Cardiopatias Congênitas , Pré-Eclâmpsia , Adulto , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Gravidez , Medição de Risco
10.
J Virus Erad ; 3(3): 157-162, 2017 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-28758024

RESUMO

OBJECTIVES: To describe the fasting serum lipid and glucose profiles of HIV-positive Nigerian children and determine the prevalence and risk factors for dyslipidaemia and hyperglycaemia, which are risk factors for cardiovascular diseases. METHODS: This was a comparative cross-sectional study carried out at the Paediatric Infectious Disease Clinic (PIDC) of the Jos University Teaching Hospital (JUTH) for HIV-positive children and at two primary schools in Jos for HIV-negative children as controls. One hundred and forty-two HIV-positive children aged 6-18 years and an equal number of controls were studied by determining their fasting serum lipid and glucose levels. The prevalence of dyslipidaemia and hyperglycaemia was determined and their risk factors obtained using multivariate logistic regression. P values of less than 0.05 were considered statistically significant. RESULTS: Mean triglyceride levels were significantly higher in HIV-positive children compared with controls at 87.2 mg/dL (95% confidence interval [CI] 79.4-95.0) and 68.1 mg/dL (95% CI 62.5-72.7), respectively (P<0.001). There were no significant differences in mean glucose levels. Dyslipidaemia was significantly higher in HIV-positive children (21.8%) compared with controls (12.7%; P=0.04). Total serum cholesterol was elevated in 17 (12.0%) HIV-positive participants compared with seven (4.9%) of controls (P=0.02). Children on lopinavir/ritonavir (LPV/r) and those with no significant or mild disease had a significantly higher prevalence of hypercholesterolaemia (33.3% vs 4.8% and 14.5% vs 0.0%, respectively; P<0.001). CONCLUSION: HIV-positive children on antiretroviral (ARV) drugs, especially LPV/r, should have their lipids regularly monitored as those with dyslipidaemia stand the risk of subsequently developing cardiovascular diseases.

11.
Niger Med J ; 54(1): 51-8, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23661900

RESUMO

BACKGROUND: The patterns of childhood acquired heart diseases (AHD) vary in different parts of the world and may evolve over time. We aimed to compare the pattern of childhood AHD in our institution to the historical and contemporary patterns in other parts of the country, and to highlight possible regional differences and changes in trend. MATERIALS AND METHODS: Pediatric echocardiography records spanning a period of 10 years were reviewed. Echocardiography records of children with echocardiographic or irrefutable clinical diagnoses of AHD were identified and relevant data extracted from their records. RESULTS: One hundred and seventy five children were diagnosed with AHD during the period, including seven that had coexisting congenital heart disease (CHD). They were aged 4 weeks to 18 years (mean 9.84΁4.5 years) and comprised 80 (45.7%) males and 95 (54.3%) females. Rheumatic heart disease (RHD) was the cause of the AHD in 101 (58.0%) children, followed by dilated cardiomyopathy (33 cases, 18.9%) which was the most frequent AHD in younger (under 5 years) children. Other AHD encountered were cor pulmonale in 16 (9.1%), pericardial disease in 15 (8.6%), infective endocarditis in 8 (4.6%) and aortic aneurysms in 2 (1.1%) children. Only one case each of endomyocardial fibrosis (EMF) and Kawasaki Disease were seen during the period. CONCLUSIONS: The majority of childhood acquired heart diseases in our environment are still of infectious aeitology, with RHD remaining the most frequent, particularly in older children. Community-based screening and multicenter collaborative studies will help to better describe the pattern of AHD in our country. More vigorous pursuit of the Millennium development goals will contribute to reducing the burden of childhood acquired heart diseases in the country.

12.
Congenit Heart Dis ; 7(5): 417-22, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22691028

RESUMO

OBJECTIVE: The objective of this article was to compare the left ventricular (LV) systolic function of human immunodeficiency virus (HIV)-infected children with that of healthy controls, determine the prevalence of LV systolic dysfunction in HIV-infected children, and its association with age, stage of disease, and use of zidovudine. STUDY DESIGN: This was a comparative cross-sectional descriptive study. SETTING: A University Teaching Hospital in North-Central Nigeria in 2008. PATIENTS: One hundred fifty HIV-infected children aged 6 weeks-14 years, and an equal number of age- and sex-matched apparently healthy controls. OUTCOME MEASURES: Left ventricular internal dimensions in diastole and systole, LV fractional shortening (FS) and ejection fraction (EF). Left ventricular systolic dysfunction was considered present when FS was <28% or EF was <50%. RESULTS: Mean LV internal dimensions in diastole was similar in subjects and controls (P= .26). Left ventricular internal dimensions in systole was significantly larger in subjects (2.7 cm, 95% confidence interval [CI] 2.6-2.8 cm) than controls (2.4 cm, 95% CI 2.3-2.5 cm) (P < .001). Mean FS of 27.8% (26.8-28.8%) in subjects was significantly reduced compared with 33.7% (33.1-34.3%) in controls (P < .001), as was EF 61.5% (60.7-62.3%) in subjects and 70.5% (69.7-71.3%) in controls (P < .001). Left ventricular systolic dysfunction was detected in 75 (50.0%, 95% CI 41.7-58.3%) subjects and 5 (3.3%, 95% CI 2.2-6.7) controls (P < .001). Subjects with left ventricular systolic dysfunction were significantly older than those without (P < .001) but did not differ significantly from them with respect to zidovudine therapy or stage of disease. CONCLUSIONS: Left ventricular systolic dysfunction is significantly more frequent in HIV-infected children compared with controls. Left ventricular systolic function in HIV-infected children deteriorates with increasing age and should be serially evaluated in them.


Assuntos
Infecções por HIV/epidemiologia , Sístole , Disfunção Ventricular Esquerda/epidemiologia , Função Ventricular Esquerda , Adolescente , Fatores Etários , Fármacos Anti-HIV/uso terapêutico , Estudos de Casos e Controles , Distribuição de Qui-Quadrado , Criança , Pré-Escolar , Estudos Transversais , Progressão da Doença , Ecocardiografia Doppler de Pulso , Feminino , Infecções por HIV/tratamento farmacológico , Humanos , Lactente , Modelos Logísticos , Masculino , Análise Multivariada , Contração Miocárdica , Nigéria/epidemiologia , Prevalência , Volume Sistólico , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/fisiopatologia , Zidovudina/uso terapêutico
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