RESUMO
Peritoneal dialysis (PD) is the most common renal replacement therapy used in pediatric patients with end stage renal disease. This population has a mortality rate 1,000 times greater compare to pediatric population, mainly due to cardiovascular causes. OBJECTIVE: To characterize pediatric patients on chronic PD in relation to dialysis and cardiovascular outcome. PATIENTS AND METHODS: Cross sectional study. Patients in stable PD according to DOQI criteria were selected. Epidemiological, dialytic, biochemical and cardiovascular variables were registered. Left Ventricular Mass Index (LVMI) was calculated by height/age (g/m2.7). Left Ventricular Hypertrophy (LVH) was diagnosed with > 38.6 g/m2.7, severe LVH > 51 g/m2.7. Data were analyzed using STATA 11.0. continuous variables using ANOVA test and categorical variables were analyzed using χ2 test or Fishers exact test. RESULTS: 21 patients, 11 males. Mean age 9.2 ± 3.52 years. The most frequent diagnosis was renal dysplasia (52%). Residual and Peritoneal KtV were 0.8 and 1.9 respectively. Fifty-two percent of patients showed LVH, 91% in severe range. A significant relationship between ultrafiltration/m2 and systolic blood pressure was depicted. Also a significant relationship between left ventricular mass index and hemoglobin (p < 0.05) was founded. CONCLUSIONS: The majority of the population showed left ventricular hypertrophy -particularly severe LVH-, which confirms an increased CV risk in this population. Blood pressure and loss of ultrafiltration were founded to be correlated to LVH.
Assuntos
Doenças Cardiovasculares/epidemiologia , Hipertrofia Ventricular Esquerda/epidemiologia , Falência Renal Crônica/terapia , Diálise Peritoneal/métodos , Pressão Sanguínea , Doenças Cardiovasculares/fisiopatologia , Criança , Pré-Escolar , Estudos Transversais , Feminino , Hemoglobinas/metabolismo , Humanos , Hipertrofia Ventricular Esquerda/fisiopatologia , Masculino , Índice de Gravidade de DoençaRESUMO
La diálisis peritoneal (DP) es la terapia de reemplazo renal más usada en niños portadores de enfermedad renal crónica terminal. La enfermedad cardiovascular es la principal causa de mortalidad en estos pacientes. OBJETIVO: Caracterizar pacientes pediátricos en DP crónica desde el punto de vista cardiovascular. PACIENTES Y MÉTODO: Estudio de corte transversal en pacientes en DP, estables según criterios DOQI. Se registraron variables epidemiológicas, dialíticas, bioquímicas y cardiovasculares. Se evaluó hipertrofia ventricular izquierda (HVI) por ecocardiografía. El índice de masa ventricular izquierda (IMVI) se calculó por índice talla/edad (g/m2.7). Se consideró HVI > 38,6 g/m2.7, y severa HVI > 51 g/m2.7. Se analizaron las variables continuas mediante ANOVA, y categóricas por χ2 o método exacto de Fisher. Se analizaron los datos en STATA 11.0. RESULTADOS: Se incluyeron 21 pacientes, 11 varones, edad 9,2 ± 3,5 años. El diagnóstico más frecuente fue displasia renal (52%). El KtV residual promedio fue de 0,8, y peritoneal 1,9. En la ecocardiografía, un 52% presentó HVI, un 91% de ellos en rango severo. Se demostró una relación significativa entre ultrafiltración y presión arterial sistólica, y entre IMVI y hemoglobina (p < 0,05). CONCLUSIONES: En este estudio reportamos una incidencia de HVI mayor al 50%, en su mayoría grado severo, lo cual evidencia el importante compromiso cardiovascular en estos pacientes. La hipertensión arterial y falla de ultrafiltración destacan como importantes factores relacionados a la hipertrofia ventricular izquierda.
Peritoneal dialysis (PD) is the most common renal replacement therapy used in pediatric patients with end stage renal disease. This population has a mortality rate 1,000 times greater compare to pediatric population, mainly due to cardiovascular causes. OBJECTIVE: To characterize pediatric patients on chronic PD in relation to dialysis and cardiovascular outcome. PATIENTS AND METHODS: Cross sectional study. Patients in stable PD according to DOQI criteria were selected. Epidemiological, dialytic, biochemical and cardiovascular variables were registered. Left Ventricular Mass Index (LVMI) was calculated by height/age (g/m2.7). Left Ventricular Hypertrophy (LVH) was diagnosed with > 38.6 g/m2.7, severe LVH > 51 g/m2.7. Data were analyzed using STATA 11.0. continuous variables using ANOVA test and categorical variables were analyzed using χ2 test or Fisher's exact test. RESULTS: 21 patients, 11 males. Mean age 9.2 ± 3.52 years. The most frequent diagnosis was renal dysplasia (52%). Residual and Peritoneal KtV were 0.8 and 1.9 respectively. Fifty-two percent of patients showed LVH, 91% in severe range. A significant relationship between ultrafiltration/m2 and systolic blood pressure was depicted. Also a significant relationship between left ventricular mass index and hemoglobin (p < 0.05) was founded. CONCLUSIONS: The majority of the population showed left ventricular hypertrophy -particularly severe LVH-, which confirms an increased CV risk in this population. Blood pressure and loss of ultrafiltration were founded to be correlated to LVH.