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- Ensayo clínico NCT01137929
Bacterial and Host Genetic Risk Factors in Acute Pyelonephritis
Bacterial and Host Genetic Risk Factors That Predispose Children to Acute Pyelonephritis and Renal Scarring
Descripción general del estudio
Estado
Condiciones
Descripción detallada
Tipo de estudio
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Método de muestreo
Población de estudio
Descripción
Inclusion Criteria:
- Infants admitted to the inpatient ward at Children's National Medical Center for the treatment of a febrile urinary tract infection (see definitions) will be screened for inclusion into the research protocol.
UTIF: A UTIF will require the presence of
- (1) fever and/or symptoms consistent with UTI,
- (2) pyuria based on urinalysis, and
- (3) culture-proven infection with a single organism. Specifically, the study definition of UTIF will require:
- Fever: A documented temperature of at least 100.4 °F or 38°C, measured anywhere on the body either at home or at doctor's office.
Positive dipstick analysis: Pyuria on urinalysis (>10 WBC/mm3 (uncentrifuged specimen) OR >5 WBC/hpf (centrifuged specimen), OR >1+ leukocyte esterase on dipstick).
- Culture documentation of UTI: Evidence of bacteria (>5 x 104 CFU/mL (catheterized or suprapubic aspiration urine specimen). Bag collected specimens will not be acceptable
Exclusion Criteria:
- Infants who do not conform to the above inclusion criteria and who have co-morbidities such as duplication abnormalities, diabetes mellitus, over weight status, anatomical defects of the urinary tract and neuropathic bladder dysfunction.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
---|
With APN, With VUR, With Renal Scar
This group of children who present with a febrile UTI will be found to have APN on DMSA renal scan and will also have VUR by VCUG and a renal scar on follow-up DMSA renal scan.
|
With APN, With VUR, Without Renal Scar
This group of children who present with a febrile UTI will be found to have APN on DMSA renal scan and will also have VUR by VCUG and NO renal scar on follow-up DMSA renal scan.
|
With APN, without VUR, with Renal Scar
This group of children who present with a febrile UTI will be found to have APN on DMSA renal scan but who will NOT have VUR by VCUG; however they will have a renal scar on follow-up DMSA renal scan.
|
With APN, Without VUR, Without Renal Scar
This group of children who present with a febrile UTI will be found to have APN on DMSA renal scan and will NOT have VUR by VCUG, NOR will they have a renal scar on follow-up DMSA renal scan.
|
Without APN, With VUR
This group of children who present with a febrile UTI will be found NOT to have APN on DMSA renal scan and will also have VUR by VCUG.
They will not undergo a second DMSA scan since the first one is normal.
|
Without APN, Without VUR
This group of children who present with a febrile UTI will be found NOT to have APN on DMSA renal scan and will also NOT have VUR by VCUG, NOR a renal scar on follow-up DMSA renal scan.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
---|---|---|
Incidence of acute pyelonephritis lesions
Periodo de tiempo: < 72 hours after presentation with fever and positive urine culture
|
Children under two years of age will undergo a 99m-Tc-DMSA renal scan for the detection of acute pyelonephritis lesions within 72 hours of presentation to the ED for evaluation of a fever and positive urine culture. Based on finding the characteristic lesions (such as preservation of the renal contour but with diminished photopenia. This outcome measure will be aggregated with other bacterial and host related risk factors in order to identify the salient ones that result in morbidity from bladder infection. |
< 72 hours after presentation with fever and positive urine culture
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
---|---|---|
Incidence of renal cortical scarring
Periodo de tiempo: At least 6 months
|
Since the lesions associated with acute pyelonephritis can resolve up to 6 months following infection, we will stress the importance of obtaining these delayed scans for the purpose of ascertaining whether the inflammation has resulted in a fixed lesion, termed a renal scar.
|
At least 6 months
|
Colaboradores e Investigadores
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Anticipado)
Finalización del estudio (Anticipado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- Genes-APN
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
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