RESUMO
OBJECTIVE: To assess the safety and efficacy of infliximab (IFX) for the treatment of patients with Kawasaki disease (KD). STUDY DESIGN: This was a nationwide survey of 274 Japanese institutions exploring how IFX was used to treat patients with KD. The patients' sex, age, treatment course, pre- and post-IFX therapy blood test results, coronary artery lesions (CALs), and adverse events (AEs) were evaluated. RESULTS: We analyzed 434 patients with KD who received IFX between March 2005 and November 2014. The median age at onset was 33 months (range 1-138), and 66 patients (15.2%) were under 1 year old. In all cases, IFX was administered as additional treatment. The median days of illness at the initiation of IFX was 9 days. In 275 patients (63.4%), IFX was administered as third-line treatment, and in 106 patients (24.4%), IFX was administered as fourth-line treatment. Single dose IFX 5 mg/kg was administered to 412 patients (94.9%). After IFX, 363 patients (83.6%) became afebrile within 2 days, and the white blood cell count, percentage of neutrophils, and serum C-reactive protein levels significantly decreased (P < .001), although 119 patients (27.4%) received additional treatment. Before IFX, 132 patients (30.4%) had already developed CALs. In patients without CALs before IFX, 31 patients (10.3%) newly developed CAL after IFX, whereas 32 patients (24.2%) with CAL before IFX showed increased CAL severity. Eighty AEs were observed in 69 patients (15.9%); however, serious AEs were few and reversible. CONCLUSIONS: IFX might be an effective and tolerable treatment for refractory KD.
Assuntos
Antirreumáticos/administração & dosagem , Infliximab/administração & dosagem , Síndrome de Linfonodos Mucocutâneos/tratamento farmacológico , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Japão , Masculino , Estudos Retrospectivos , Inquéritos e Questionários , Fatores de TempoRESUMO
OBJECTIVES: To evaluate the clinical utility of pulmonary artery capacitance index (PACi) in the assessment of disease severity and prognostic value in children with idiopathic and heritable pulmonary arterial hypertension (PAH). STUDY DESIGN: PACi is defined as the ratio of stroke volume index over pulmonary pulse pressure. A retrospective study was performed to compare PACi, brain natriuretic peptide (BNP), 6-minute walk distance, New York Heart association (NYHA) functional class, and adverse outcomes (hospitalization due to heart failure, lung transplantation, and cardiac mortality) in 72 Japanese children (10 ± 3.6 years) with idiopathic and heritable PAH. RESULTS: PACi had significant correlations with pulmonary vascular resistance index (r =-0.73, P < .0001), BNP levels (r = -0.40, P = .0008), and 6-minute walk distance (r = 0.57, P < .05). Statistically significant differences in PACi were observed between NYHA functional class II vs combined III and IV (median; 1.1 vs 0.6 mL/mm Hg/m2, respectively, P < .05). There were 25 of 72 (35%) children who had an adverse event including initiation of hospitalization due to heart failure, lung transplantation, and death. Cumulative event-free survival rate was significantly lower when PACi was <0.85 mL/mm Hg/m2 (log-rank test, P < .0001). CONCLUSIONS: PACi correlated with BNP and NYHA functional class and may serve as a strong prognostic marker in children with idiopathic and heritable PAH.
Assuntos
Hipertensão Pulmonar Primária Familiar/fisiopatologia , Artéria Pulmonar/fisiopatologia , Capacitância Vascular , Criança , Feminino , Humanos , Masculino , Valor Preditivo dos Testes , Prognóstico , Estudos Retrospectivos , Índice de Gravidade de DoençaRESUMO
OBJECTIVE: To evaluate the clinical utility of tissue Doppler imaging (TDI) in assessment of disease severity and prognostic value in children with idiopathic pulmonary arterial hypertension (PAH). STUDY DESIGN: A prospective study was performed to evaluate TDI velocities (systolic myocardial velocity, early diastolic myocardial relaxation velocity [Em], late diastolic myocardial velocity associated with atrial contraction), brain natriuretic peptide, New York Heart Association (NYHA) functional class, and hemodynamics in 51 children (mean age; 11.6 years) with idiopathic PAH. Fifty-one healthy children with comparable demographics served as controls. RESULTS: Em, Em/late diastolic myocardial velocity associated with atrial contraction ratio, and systolic myocardial velocity at mitral annulus, septum, and tricuspid annulus in PAH were significantly reduced compared with controls. Tricuspid Em had significant inverse correlations with plasma brain natriuretic peptide levels (r = -0.60, P < .001), right ventricular end-diastolic pressure (r = -0.79, P < .001), and mean pulmonary arterial pressure (r = -0.67, P < .001). Statistically significant differences were observed in tricuspid Em between NYHA functional class II vs combined III and IV (mean and SD; 11.9 ± 4.2 cm/s vs 8.2 ± 3.6 cm/s, respectively, P = .002). Cumulative event-free survival rate was significantly lower when tricuspid Em was ≤8 cm/s (log-rank test, P < .001) CONCLUSIONS: Tricuspid Em velocity correlated with NYHA functional class as disease severity and may serve as a useful prognostic marker in children with idiopathic PAH. The present study is the initial report to evaluate TDI velocities against midterm outcome variables in a relatively large pediatric PAH population.
Assuntos
Ecocardiografia Doppler de Pulso , Hipertensão Pulmonar/diagnóstico por imagem , Adolescente , Biomarcadores/sangue , Velocidade do Fluxo Sanguíneo , Pressão Sanguínea , Estudos de Casos e Controles , Criança , Intervalo Livre de Doença , Ecocardiografia Doppler em Cores , Teste de Esforço , Hipertensão Pulmonar Primária Familiar , Feminino , Seguimentos , Humanos , Hipertensão Pulmonar/sangue , Hipertensão Pulmonar/fisiopatologia , Estimativa de Kaplan-Meier , Modelos Logísticos , Masculino , Peptídeo Natriurético Encefálico/sangue , Prognóstico , Estudos Prospectivos , Curva ROC , Índice de Gravidade de DoençaRESUMO
OBJECTIVE: To determine whether the N-terminal fragment of B-type natriuretic peptide (NTproBNP) was a biomarker of clinical, laboratory, and echocardiographic abnormalities in children with homozygous sickle cell disease. STUDY DESIGN: We conducted a single-center retrospective study that consisted of analysis of data from November 2007 to December 2010. We correlated serum NTproBNP with clinical and laboratory findings, echocardiographic data, and New York Heart Association (NYHA) functional class. RESULTS: NTproBNP levels from 42 children (median age, 9 years; 52% female) had significant correlations with hemoglobin (r = -0.63, P < .05), and echocardiographic measurements including tricuspid regurgitant velocity (r = 0.46, P < .05), lateral E' (r = -0.52, P < .05), and lateral E/E' ratio (r = 0.60, P < .05), suggesting diastolic dysfunction. In addition, NTproBNP levels increased from NYHA functional class I to class III and had a significant linear correlation with the NYHA functional class (r = 0.69, P < .05). CONCLUSIONS: NTproBNP correlated with low hemoglobin and tissue Doppler data as indicators of diastolic dysfunction. Elevated NTproBNP may be a prognostic biomarker for the presence of diastolic dysfunction related to anemia in children with sickle cell disease.