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1.
J Hypertens ; 40(3): 425-431, 2022 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-35081580

RESUMEN

OBJECTIVE: : Arterial hypertension is a common complication in patients with autosomal recessive polycystic kidney disease (ARPKD), occurring in 33-75% of children when measured by office blood pressure (OBP). Ambulatory blood pressure monitoring (ABPM) is a superior tool for investigating blood pressure relative to OBP. The aim of our study was to investigate the prevalence and control of hypertension in children with ARPKD based on ABPM. METHODS: This retrospective study evaluated 36 children with ARPKD and at least one ABPM performed in two our tertiary paediatric nephrology centres and 29 children with at least two ABPM. Ambulatory hypertension was defined as mean daytime or night-time BP at least 95th percentile or use of antihypertensives and controlled hypertension as normal ambulatory BP in children on antihypertensive drugs. RESULTS: The first ABPM study revealed ambulatory hypertension in 94% of children. Untreated or uncontrolled ambulatory hypertension was diagnosed in 67% and controlled hypertension in only 28%. Masked hypertension was found in 5.5% and white-coat hypertension in 14%. The last ABPM study revealed ambulatory hypertension in 86% (all 86% hypertensive children on drugs, i.e. no untreated hypertension), the prevalence of controlled hypertension increased to 59%. Masked hypertension was detected in 8.3% and white-coat hypertension in 10%. Ambulatory blood pressure correlated neither with kidney length nor with glomerular filtration rate. Echocardiography demonstrated left ventricular hypertrophy (LVH) in 27% of children at the time of their first ABPM. CONCLUSION: The prevalence of ambulatory hypertension is very high in children with ARPKD, while the control of hypertension improves over time.


Asunto(s)
Hipertensión , Riñón Poliquístico Autosómico Recesivo , Presión Sanguínea , Monitoreo Ambulatorio de la Presión Arterial , Niño , Humanos , Hipertensión/complicaciones , Hipertensión/tratamiento farmacológico , Hipertensión/epidemiología , Riñón Poliquístico Autosómico Recesivo/complicaciones , Riñón Poliquístico Autosómico Recesivo/epidemiología , Estudios Retrospectivos
2.
Clin Nephrol ; 96(1): 56-61, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34643492

RESUMEN

AIMS: Autosomal recessive polycystic kidney disease (ARPKD) is a rare inherited disease. We reviewed the clinical characteristics, management, and outcomes in Slovenian pediatric patients with ARPKD. MATERIALS AND METHODS: All patients with ARPKD who were treated at the Pediatric Nephrology Department of the University Children's Hospital in Ljubljana between 1980 and 2020 were included in the study. The data were assessed retrospectively by reviewing the patients' medical records and analyzed using descriptive statistics. RESULTS: We included 13 patients, 6 boys and 7 girls. A prenatal diagnosis was established in 3 (23%) patients. In 4 (31%) patients, the diagnosis was confirmed within the first few days of life, while in 6 (46%) patients the disease manifested later during childhood. Four babies (31%) needed ventilatory support after birth. Arterial hypertension developed in all patients. Liver function was affected in 12 (92%) patients and was the predominant clinical concern in 2 of them. Two (15%) patients presented with end-stage renal disease (ESRD). Portal hypertension was found in 7 (54%) patients. Initial sonography revealed enlarged kidneys in 12 (92%) patients, hyperechoic kidneys or poor cortico-medullary differentiation in 10 (77%), and liver abnormalities in 5 (38%) patients. Unilateral nephrectomy was necessary before dialysis in 1 patient. Six (46%) patients started maintenance dialysis at an average age of 15.3 years. Kidney transplantation was performed in 2 (15%) and liver transplantation in 1 (8%) patient. Two (15%) patients died because of sepsis or respiratory failure. CONCLUSION: ARPKD is a progressive disease leading to ESRD and renal replacement treatment in almost half of our patients. Our data confirm the phenotypic variability of ARPKD in Slovenian patients.


Asunto(s)
Trasplante de Riñón , Trasplante de Hígado , Riñón Poliquístico Autosómico Recesivo , Adolescente , Niño , Femenino , Humanos , Masculino , Riñón Poliquístico Autosómico Recesivo/diagnóstico , Riñón Poliquístico Autosómico Recesivo/epidemiología , Riñón Poliquístico Autosómico Recesivo/terapia , Embarazo , Estudios Retrospectivos , Ultrasonografía
3.
Int J Immunopathol Pharmacol ; 34: 2058738420966083, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33125856

RESUMEN

Polycystic kidneys disease refers to cyst(s) formation in kidneys with severe consequences of end stage renal disease thus have higher mortality. It is a common genetic disease occurring either as autosomal dominant polycystic kidney (ADPKD) or autosomal recessive polycystic kidney disease (ARPKD) with prevalence rates of 1/1000 and 1/40,000 respectively. Dominant forms presenting in later (>30) while recessive in earlier ages (infancy) and affecting both sexes and almost all race. The patient experiences many renal as well as extra-renal manifestations with marked hypertension and cyst formation in other organs predominantly in liver. Due to genetic basis, positive family history is considered as major risk factor. Ultrasonography remains the main stay of diagnosis along with family history, by indicating increased renal size and architectural modifications. Initially disease remains asymptomatic, later on symptomatic treatment is suggested with surgical interventions like cyst decortications or drainage. Dialysis proved to be beneficial in end stage renal disease. However renal transplantation is the treatment of choice.


Asunto(s)
Riñón Poliquístico Autosómico Dominante/epidemiología , Riñón Poliquístico Autosómico Recesivo/epidemiología , Adulto , Anciano , Progresión de la Enfermedad , Femenino , Predisposición Genética a la Enfermedad , Humanos , Masculino , Persona de Mediana Edad , Pakistán/epidemiología , Riñón Poliquístico Autosómico Dominante/diagnóstico , Riñón Poliquístico Autosómico Dominante/genética , Riñón Poliquístico Autosómico Dominante/terapia , Riñón Poliquístico Autosómico Recesivo/diagnóstico , Riñón Poliquístico Autosómico Recesivo/genética , Riñón Poliquístico Autosómico Recesivo/terapia , Prevalencia , Pronóstico , Terapia de Reemplazo Renal , Medición de Riesgo , Factores de Riesgo , Canales Catiónicos TRPP/genética
4.
Rev. cuba. obstet. ginecol ; 45(3): e484, jul.-set. 2019. tab
Artículo en Español | LILACS, CUMED | ID: biblio-1093659

RESUMEN

Introducción: Las malformaciones congénitas, como defectos estructurales primarios de un órgano, parte de él o de zonas más extensas del organismo, resultan de una alteración inherente en el desarrollo, que se hace evidente al examen físico del feto y del recién nacido, antes o posterior al nacimiento, cuando se hace patente el defecto funcional de un órgano interno afectado anatómicamente. Objetivo: Caracterizar las malformaciones congénitas renales fetales diagnosticadas por ultrasonografía bidimensional, atendidas durante 2015 y 2016. Métodos: Se realizó un estudio descriptivo, longitudinal y prospectivo en el Centro Provincial de Genética Médica de Santiago de Cuba. Se seleccionó la muestra por el método aleatorio simple para un total de 59 gestantes (34 de 2015 y 25 de 2016), a las que se les diagnosticó algún tipo de malformación congénita renal embriofetal. Resultados: La malformación congénita renal que predominó fue la hidronefrosis, seguida de riñón poliquístico. En los hallazgos morfológicos por ecosonografía predominaron las afecciones del parénquima renal. El sexo fetal de mayor incidencia fue el masculino. La edad gestacional donde incidieron las afecciones renales en gestantes fue de 25 y más semanas, con edad materna entre 20 y 35 años, sin reportar factores genéticos. Los factores de riesgo externos de origen materno que más incidieron fueron la hipertensión arterial, el hábito de fumar y la diabetes. Conclusiones: Se mostraron los principales hallazgos morfológicos ultrasonográficos de los diferentes tipos de malformaciones congénitas renales encontradas, así como se identificaron los diferentes factores de riesgo presentes en las embarazadas. Se observó un predominio de las gestantes a temprana edad con hidronefrosis como el tipo de malformación congénita más frecuente(AU)


Introduction: Congenital malformations, as primary structural defects of an organ, part of it or larger areas of the organism, result from an inherent alteration in development, which is evident from the physical examination of the fetus and the newborn, before or after birth, when the functional defect of an anatomically affected internal organ becomes apparent. Objective: To characterize fetal renal congenital malformations diagnosed by two-dimensional ultrasonography during 2015 and 2016. Methods: A descriptive, longitudinal and prospective study was conducted at the Provincial Center of Medical Genetics in Santiago de Cuba. The sample was selected by simple random method for a total of 59 pregnant women (34 from 2015 and 25 from 2016). They were diagnosed with some type of embryo-fetal renal congenital malformation. Results: The congenital renal malformation that predominated was hydronephrosis, followed by polycystic kidney. In the morphological findings by echocardiography, renal parenchymal conditions predominated. Male fetal sex had the highest incidence. The gestational age where renal conditions affected pregnant women was 25 weeks and more, with maternal age ranging 20 and 35 years, without reporting genetic factors. Smoking and diabetes were the external risk factors of maternal origin that most affected high blood pressure. Conclusions: The main ultrasonographic morphological findings of the different types of congenital renal malformations found were shown, as well as the different risk factors present in pregnant women. A predominance of pregnant women at early age with hydronephrosis was observed as the most common type of congenital malformation(AU)


Asunto(s)
Riñón Poliquístico Autosómico Recesivo/epidemiología , Hidronefrosis/epidemiología , Riñón/anomalías , Epidemiología Descriptiva , Estudios Prospectivos , Ultrasonografía Doppler Dúplex/métodos
5.
J Pediatr ; 209: 107-115.e5, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30902421

RESUMEN

OBJECTIVES: To evaluate the diagnostic accuracy of ultrasound elastography with acoustic radiation force impulse (ARFI) to detect congenital hepatic fibrosis and portal hypertension in children with autosomal recessive polycystic kidney disease (ARPKD). STUDY DESIGN: Cross-sectional study of 25 children with ARPKD and 24 healthy controls. Ultrasound ARFI elastography (Acuson S3000, Siemens Medical Solutions USA, Inc, Malvern, Pennsylvania) was performed to measure shear wave speed (SWS) in the right and left liver lobes and the spleen. Liver and spleen SWS were compared in controls vs ARPKD, and ARPKD without vs with portal hypertension. Linear correlations between liver and spleen SWS, spleen length, and platelet counts were analyzed. Receiver operating characteristic analysis was used to evaluate diagnostic accuracy of ultrasound ARFI elastography. RESULTS: Participants with ARPKD had significantly higher median liver and spleen SWS than controls. At a proposed SWS cut-off value of 1.56 m/s, the left liver lobe had the highest sensitivity (92%) and specificity (96%) for distinguishing participants with ARPKD from controls (receiver operating characteristic area 0.92; 95% CI 0.82-1.00). Participants with ARPKD with portal hypertension (splenomegaly and low platelet counts) had significantly higher median liver and spleen stiffness than those without portal hypertension. The left liver lobe also had the highest sensitivity and specificity for distinguishing subjects with ARPKD with portal hypertension. CONCLUSIONS: Ultrasound ARFI elastography of the liver and spleen, particularly of the left liver lobe, is a useful noninvasive biomarker to detect and quantify liver fibrosis and portal hypertension in children with ARPKD.


Asunto(s)
Diagnóstico por Imagen de Elasticidad/métodos , Enfermedades Genéticas Congénitas/diagnóstico por imagen , Hipertensión Portal/epidemiología , Cirrosis Hepática/diagnóstico por imagen , Riñón Poliquístico Autosómico Recesivo/diagnóstico por imagen , Riñón Poliquístico Autosómico Recesivo/patología , Ultrasonografía Doppler/métodos , Adolescente , Niño , Preescolar , Comorbilidad , Estudios Transversales , Femenino , Enfermedades Genéticas Congénitas/epidemiología , Enfermedades Genéticas Congénitas/patología , Hospitales Pediátricos , Humanos , Hipertensión Portal/diagnóstico por imagen , Hipertensión Portal/patología , Cirrosis Hepática/epidemiología , Cirrosis Hepática/patología , Masculino , Philadelphia , Riñón Poliquístico Autosómico Recesivo/epidemiología , Curva ROC , Valores de Referencia , Sensibilidad y Especificidad , Índice de Severidad de la Enfermedad
6.
Ann Clin Biochem ; 56(1): 90-94, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-29874928

RESUMEN

BACKGROUND: Hypomagnesaemia is present in 40-50% of children with autosomal dominant renal cysts and diabetes syndrome (RCAD). On the contrary, the prevalence of hypomagnesaemia in children with autosomal dominant polycystic kidney disease (ADPKD) has never been examined. We aimed to investigate whether hypomagnesaemia is present in children with polycystic kidney diseases. METHODS: Children with cystic kidney diseases were investigated in a cross-sectional study. Serum concentrations of magnesium (S-Mg) and fractional excretion of magnesium (FE-Mg) were tested. Fifty-four children with ADPKD ( n = 26), autosomal recessive polycystic kidney disease (ARPKD) ( n = 16) and RCAD ( n = 12) with median age of 11.2 (0.6-18.6) years were investigated. RESULTS: Hypomagnesaemia (S-Mg < 0.7 mmol/L) was detected in none of the children with ADPKD/ARPKD and in eight children (67%) with RCAD. Median S-Mg in children with ADPKD/ARPKD was significantly higher than in children with RCAD (0.89 vs. 0.65 mmol/L, P < 0.01). The FE-Mg was increased in 23% of patients with ADPKD/ARPKD (all had chronic kidney disease stages 2-4) and in 63% of patients with RCAD, where it significantly correlated with estimated glomerular filtration rate (r = -0.87, P < 0.01). CONCLUSIONS: Hypomagnesaemia is absent in children with ADPKD or ARPKD and could serve as a marker for differential diagnostics between ADPKD, ARPKD and RCAD in children with cystic kidney diseases of unknown origin where molecular genetic testing is lacking. However, while hypomagnesaemia, in the absence of diuretics, appears to rule out ADPKD and ARPKD, normomagnesaemia does not rule out RCAD at least in those aged <3 years.


Asunto(s)
Hipercalciuria/epidemiología , Magnesio/sangre , Nefrocalcinosis/epidemiología , Riñón Poliquístico Autosómico Dominante/epidemiología , Defectos Congénitos del Transporte Tubular Renal/epidemiología , Adolescente , Enfermedades del Sistema Nervioso Central/sangre , Enfermedades del Sistema Nervioso Central/diagnóstico , Enfermedades del Sistema Nervioso Central/epidemiología , Niño , Preescolar , Estudios Transversales , Esmalte Dental/anomalías , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiología , Diagnóstico Diferencial , Femenino , Humanos , Hipercalciuria/sangre , Hipercalciuria/diagnóstico , Lactante , Recién Nacido , Enfermedades Renales Quísticas/sangre , Enfermedades Renales Quísticas/diagnóstico , Enfermedades Renales Quísticas/epidemiología , Masculino , Nefrocalcinosis/sangre , Nefrocalcinosis/diagnóstico , Riñón Poliquístico Autosómico Dominante/sangre , Riñón Poliquístico Autosómico Dominante/diagnóstico , Riñón Poliquístico Autosómico Recesivo/sangre , Riñón Poliquístico Autosómico Recesivo/diagnóstico , Riñón Poliquístico Autosómico Recesivo/epidemiología , Prevalencia , Defectos Congénitos del Transporte Tubular Renal/sangre , Defectos Congénitos del Transporte Tubular Renal/diagnóstico
8.
Pediatr Nephrol ; 31(1): 113-9, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26260382

RESUMEN

BACKGROUND: Hepatorenal fibrocystic diseases (HRFCDs) are a group of monogenic disorders characterized by developmental abnormalities involving the liver and kidney. In this study, we performed genotype and phenotype analyses of children with HRFCDs to determine the distribution of underlying diseases. METHODS: A total of 36 children with HRFCDs were recruited, with genetic tests being performed in 22 patients and 14 patients diagnosed clinically as having autosomal recessive polycystic kidney disease (ARPKD). RESULTS: In children with HRFCDs, ARPKD was the most common disease, found in 16/36 (44.4 %), followed by nephronophthisis 13 (NPHP13) in 11/36 (30.6 %) and Meckel-Gruber syndrome type 3 (MKS3) in 4/36 (11.1 %). Renal function deteriorated faster in children with NPHP13. The main hepatic pathology was Caroli disease in the NPHP13 patients, while most other patients had Caroli syndrome or congenital hepatic fibrosis. Of note, three of four MKS3 patients had an accompanying choledochal cyst. No ARPKD patient had other organ involvement, while several NPHP13 patients had ocular and/or neurodevelopmental involvement. In contrast, all MKS3 patients had severe ocular and neurodevelopmental involvement. CONCLUSIONS: NPHP13 is a major disease in the HRFCD category, and thorough evaluation of its clinical features, including kidney, liver and other organ involvement, may aid in the differential diagnosis of HRFCD.


Asunto(s)
Enfermedad de Caroli/epidemiología , Trastornos de la Motilidad Ciliar/epidemiología , Encefalocele/epidemiología , Enfermedades Genéticas Congénitas/epidemiología , Cirrosis Hepática/epidemiología , Enfermedades Renales Poliquísticas/epidemiología , Riñón Poliquístico Autosómico Recesivo/epidemiología , Adolescente , Adulto , Factores de Edad , Enfermedad de Caroli/diagnóstico , Enfermedad de Caroli/genética , Niño , Preescolar , Trastornos de la Motilidad Ciliar/diagnóstico , Trastornos de la Motilidad Ciliar/genética , Encefalocele/diagnóstico , Encefalocele/genética , Femenino , Enfermedades Genéticas Congénitas/diagnóstico , Enfermedades Genéticas Congénitas/genética , Predisposición Genética a la Enfermedad , Pruebas Genéticas , Humanos , Lactante , Fallo Renal Crónico/epidemiología , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/genética , Masculino , Fenotipo , Enfermedades Renales Poliquísticas/diagnóstico , Enfermedades Renales Poliquísticas/genética , Riñón Poliquístico Autosómico Recesivo/diagnóstico , Riñón Poliquístico Autosómico Recesivo/genética , Valor Predictivo de las Pruebas , Pronóstico , Insuficiencia Renal Crónica/epidemiología , República de Corea/epidemiología , Factores de Riesgo , Adulto Joven
10.
BMC Nephrol ; 16: 22, 2015 Feb 18.
Artículo en Inglés | MEDLINE | ID: mdl-25886171

RESUMEN

BACKGROUND: Autosomal recessive polycystic kidney disease (ARPKD) is a rare but frequently severe disorder that is typically characterized by cystic kidneys and congenital hepatic fibrosis but displays pronounced phenotypic heterogeneity. ARPKD is among the most important causes for pediatric end stage renal disease and a leading reason for liver-, kidney- or combined liver kidney transplantation in childhood. The underlying pathophysiology, the mechanisms resulting in the observed clinical heterogeneity and the long-term clinical evolution of patients remain poorly understood. Current treatment approaches continue to be largely symptomatic and opinion-based even in most-advanced medical centers. While large clinical trials for the frequent and mostly adult onset autosomal dominant polycystic kidney diseases have recently been conducted, therapeutic initiatives for ARPKD are facing the challenge of small and clinically variable cohorts for which reliable end points are hard to establish. METHODS/DESIGN: ARegPKD is an international, mostly European, observational study to deeply phenotype ARPKD patients in a pro- and retrospective fashion. This registry study is conducted with the support of the German Society for Pediatric Nephrology (GPN) and the European Study Consortium for Chronic Kidney Disorders Affecting Pediatric Patients (ESCAPE Network). ARegPKD clinically characterizes long-term ARPKD courses by a web-based approach that uses detailed basic data questionnaires in combination with yearly follow-up visits. Clinical data collection is accompanied by associated biobanking and reference histology, thus setting roots for future translational research. DISCUSSION: The novel registry study ARegPKD aims to characterize miscellaneous subcohorts and to compare the applied treatment options in a large cohort of deeply characterized patients. ARegPKD will thus provide evidence base for clinical treatment decisions and contribute to the pathophysiological understanding of this severe inherited disorder.


Asunto(s)
Bancos de Muestras Biológicas/organización & administración , Fallo Renal Crónico/diagnóstico , Riñón Poliquístico Autosómico Recesivo/diagnóstico , Riñón Poliquístico Autosómico Recesivo/terapia , Sistema de Registros , Adulto , Niño , Progresión de la Enfermedad , Europa (Continente) , Femenino , Enfermedades Genéticas Congénitas/diagnóstico , Enfermedades Genéticas Congénitas/epidemiología , Enfermedades Genéticas Congénitas/terapia , Humanos , Internacionalidad , Internet , Fallo Renal Crónico/epidemiología , Fallo Renal Crónico/terapia , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/epidemiología , Cirrosis Hepática/terapia , Masculino , Riñón Poliquístico Autosómico Recesivo/epidemiología , Control de Calidad , Proyectos de Investigación , Sensibilidad y Especificidad , Índice de Severidad de la Enfermedad
11.
Pediatrics ; 134(3): e833-45, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25113295

RESUMEN

Autosomal recessive polycystic kidney disease (ARPKD) is an important cause of chronic kidney disease in children. The care of ARPKD patients has traditionally been the realm of pediatric nephrologists; however, the disease has multisystem effects, and a comprehensive care strategy often requires a multidisciplinary team. Most notably, ARPKD patients have congenital hepatic fibrosis, which can lead to portal hypertension, requiring close follow-up by pediatric gastroenterologists. In severely affected infants, the diagnosis is often first suspected by obstetricians detecting enlarged, echogenic kidneys and oligohydramnios on prenatal ultrasounds. Neonatologists are central to the care of these infants, who may have respiratory compromise due to pulmonary hypoplasia and massively enlarged kidneys. Surgical considerations can include the possibility of nephrectomy to relieve mass effect, placement of dialysis access, and kidney and/or liver transplantation. Families of patients with ARPKD also face decisions regarding genetic testing of affected children, testing of asymptomatic siblings, or consideration of preimplantation genetic diagnosis for future pregnancies. They may therefore interface with genetic counselors, geneticists, and reproductive endocrinologists. Children with ARPKD may also be at risk for neurocognitive dysfunction and may require neuropsychological referral. The care of patients and families affected by ARPKD is therefore a multidisciplinary effort, and the general pediatrician can play a central role in this complex web of care. In this review, we outline the spectrum of clinical manifestations of ARPKD and review genetics of the disease, clinical and genetic diagnosis, perinatal management, management of organ-specific complications, and future directions for disease monitoring and potential therapies.


Asunto(s)
Enfermedades Genéticas Congénitas/diagnóstico , Enfermedades Genéticas Congénitas/genética , Pleiotropía Genética/genética , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/genética , Riñón Poliquístico Autosómico Recesivo/diagnóstico , Riñón Poliquístico Autosómico Recesivo/genética , Animales , Enfermedades Genéticas Congénitas/epidemiología , Humanos , Cirrosis Hepática/epidemiología , Riñón Poliquístico Autosómico Recesivo/epidemiología
12.
Pediatr Res ; 75(1-2): 148-57, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24336431

RESUMEN

Autosomal dominant polycystic kidney disease (ADPKD) and autosomal recessive polycystic kidney disease (ARPKD) are significant causes of morbidity and mortality in children and young adults. ADPKD, with an incidence of 1:400 to 1:1,000, affects more than 13 million individuals worldwide and is a major cause of end-stage renal disease in adults. However, symptomatic disease is increasingly recognized in children. ARPKD is a dual-organ hepatorenal disease with an incidence of 1:20,000 to 1:40,000 and a heterozygote carrier rate of 1 in 70. Currently, no clinically significant disease-specific therapy exists for ADPKD or ARPKD. The genetic basis of both ADPKD and ARPKD have been identified, and delineation of the basic molecular and cellular pathophysiology has led to the discovery that abnormal ADPKD and ARPKD gene products interact to create "polycystin complexes" located at multiple sites within affected cells. The extracellular matrix and vessels produce a variety of soluble factors that affect the biology of adjacent cells in many dynamic ways. This review will focus on the molecular and cellular bases of the abnormal cystic phenotype and discuss the clinical translation of such basic data into new therapies that promise to alter the natural history of disease for children with genetic PKDs.


Asunto(s)
Riñón/fisiopatología , Riñón Poliquístico Autosómico Dominante/fisiopatología , Riñón Poliquístico Autosómico Recesivo/fisiopatología , Adolescente , Factores de Edad , Animales , Niño , Preescolar , Predisposición Genética a la Enfermedad , Humanos , Incidencia , Lactante , Riñón/metabolismo , Fenotipo , Riñón Poliquístico Autosómico Dominante/epidemiología , Riñón Poliquístico Autosómico Dominante/genética , Riñón Poliquístico Autosómico Dominante/metabolismo , Riñón Poliquístico Autosómico Dominante/terapia , Riñón Poliquístico Autosómico Recesivo/epidemiología , Riñón Poliquístico Autosómico Recesivo/genética , Riñón Poliquístico Autosómico Recesivo/metabolismo , Riñón Poliquístico Autosómico Recesivo/terapia , Pronóstico , Factores de Riesgo , Transducción de Señal
13.
J Pediatr Gastroenterol Nutr ; 57(2): 161-6, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23518487

RESUMEN

BACKGROUND AND OBJECTIVE: Congenital hepatic fibrosis (CHF) and Caroli syndrome are frequently associated with renal cystic diseases. They have a variable clinical course, and the natural history is not well defined despite molecular advances. Our study describes the clinical manifestations and long-term outcome in children with this disorder. METHODS: A retrospective case review of children with CHF at a single centre diagnosed on the basis of clinical features, radiological and endoscopic evidence of portal hypertension (PHT), and compatible histopathological findings. Children were categorised based on hepatic phenotype-group 1 (Caroli syndrome) and group 2 (CHF). Hepatobiliary as well as renal manifestations were recorded at presentation, and their evolution followed up until transplant or last follow-up. RESULTS: There were 40 children (22 boys) with a median age of 1.3 years at clinical presentation. Fourteen of 40 (35%) children presented in the neonatal period with primarily renal disease, of whom 11 (78%) had Caroli syndrome (P = 0.02). Significant PHT with oesophageal varices was seen in 86%, with no difference in the incidence of gastrointestinal bleeding and varices between Caroli syndrome and CHF. Cholangitis developed in 10 of 40 (25%) and was more common in the Caroli syndrome group (P = 0.009). A higher proportion of children with Caroli syndrome developed chronic kidney disease (CKD) stage 3 and above as compared with CHF (85% vs 42%; P = 0.007). Twelve of 21 (57%) and 8 of 19 (42%) children in the Caroli syndrome and CHF groups required either combined liver-kidney or isolated liver transplant, with the most common indication for renal transplantation being end-stage renal disease (CKD5d) with or without advanced PHT or cholangitis. All 14 (100%) children with neonatal presentation developed CKD5d and required combined liver-kidney transplant before 14 years of age, whereas 77% of children presenting beyond the neonatal period survived without liver-kidney transplant (P < 0.001). Neonatal presentation was the best predictor of the need for transplant. CONCLUSIONS: Caroli syndrome is more likely to present in the neonatal period and these patients are more likely to develop CKD5d. CKD stage 3 or above with recurrent cholangitis is more common in Caroli syndrome presenting beyond the neonatal period and adds to the significant morbidity in these patients. Children presenting in the neonatal period have a more severe phenotype and should be considered early for combined liver-kidney transplant.


Asunto(s)
Enfermedad de Caroli , Enfermedades Genéticas Congénitas , Hipertensión Portal/etiología , Fallo Renal Crónico/etiología , Riñón/patología , Cirrosis Hepática , Hígado/patología , Riñón Poliquístico Autosómico Recesivo , Adolescente , Enfermedad de Caroli/complicaciones , Enfermedad de Caroli/epidemiología , Enfermedad de Caroli/patología , Enfermedad de Caroli/cirugía , Niño , Preescolar , Colangitis/epidemiología , Colangitis/etiología , Colangitis/genética , Várices Esofágicas y Gástricas/epidemiología , Várices Esofágicas y Gástricas/etiología , Várices Esofágicas y Gástricas/genética , Femenino , Enfermedades Genéticas Congénitas/complicaciones , Enfermedades Genéticas Congénitas/epidemiología , Enfermedades Genéticas Congénitas/patología , Enfermedades Genéticas Congénitas/cirugía , Humanos , Hipertensión Portal/epidemiología , Hipertensión Portal/genética , Lactante , Recién Nacido , Fallo Renal Crónico/epidemiología , Fallo Renal Crónico/genética , Trasplante de Riñón , Cirrosis Hepática/complicaciones , Cirrosis Hepática/epidemiología , Cirrosis Hepática/patología , Cirrosis Hepática/cirugía , Trasplante de Hígado , Masculino , Fenotipo , Riñón Poliquístico Autosómico Recesivo/complicaciones , Riñón Poliquístico Autosómico Recesivo/epidemiología , Riñón Poliquístico Autosómico Recesivo/patología , Riñón Poliquístico Autosómico Recesivo/cirugía , Prevalencia , Insuficiencia Renal Crónica/epidemiología , Insuficiencia Renal Crónica/etiología , Estudios Retrospectivos
14.
JAMA Neurol ; 70(1): 114-6, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23318517

RESUMEN

OBJECTIVE: To highlight the possible association of intracranial aneurysm with autosomal recessive polycystic kidney disease. DESIGN, SETTING, AND PATIENT: To our knowledge, this association has been reported only twice in the medical literature. We herein report the case of a 21-year-old man with autosomal recessive polycystic kidney disease, presenting with subarachnoid hemorrhage secondary to a ruptured intracranial aneurysm, at our institution. RESULTS: In the presence of only 3 cases in the medical literature, one might conclude they are a simple coincidence. However, should this association exist, such as with the dominant form, then the neurologic prognosis and even the life of young patients may be at stake. CONCLUSIONS: Given the devastating consequences of intracranial bleeding in young patients, early neurologic screening may be warranted.


Asunto(s)
Aneurisma Intracraneal/complicaciones , Riñón Poliquístico Autosómico Recesivo/epidemiología , Hemorragia Subaracnoidea/epidemiología , Adulto , Comorbilidad , Humanos , Angiografía por Resonancia Magnética , Masculino , Hemorragia Subaracnoidea/etiología , Adulto Joven
15.
J. bras. nefrol ; 32(3): 263-267, jul.-set. 2010. tab
Artículo en Portugués | LILACS | ID: lil-562918

RESUMEN

INTRODUÇÃO: A Doença Renal Policística Autossômica Recessiva (DRPAR) é uma causa importante de morbidade e mortalidade pediátricas, com um espectro variável de manifestações clínicas. MÉTODOS: A apresentação e evolução clínica de 25 pacientes (Pts) foram analisadas através da revisão de prontuários, aplicando-se os formulários propostos por Guay-Woodford et al. As morbidades associadas à doença foram avaliadas quanto à frequência e à idade de manifestação. RESULTADOS: A idade média de diagnóstico foi de 61,45 meses (0 a 336,5 meses), com distribuição similar entre os sexos (52 por cento dos pts do sexo feminino). Houve histórico familiar da doença em 20 por cento dos casos (5/25), com dois casos de consanguinidade. Na análise inicial, diagnosticou-se hipertensão arterial (HAS) em 56 por cento dos Pts (14/25); doença renal crônica estágio > 2 (DRC > 2) em 24 por cento (6/25); infecções do trato urinário (ITU) em 40 por cento (10/25) e hipertensão portal (HP) em 32 por cento dos casos (8/25). Das ultrassonografias abdominais iniciais, 80 por cento demonstraram rins ecogênicos com cistos grosseiros e 64 por cento detectaram fígado e vias biliares normais. Inibidores da ECA foram utilizados em 36 por cento dos Pts, betabloqueadores em 20 por cento, bloqueadores de canais de cálcio em 28 por cento e diuréticos em 36 por cento dos casos. Na análise final, após um tempo de acompanhamento médio de 152,2 meses (29,8 a 274,9 meses), HAS foi diagnosticada em 76 por cento dos Pts, DRC > 2 em 44 por cento, ITU em 52 por cento e HP em 68 por cento. CONCLUSÃO: As altas morbidade e mortalidade associadas à DRPAR justificam a construção de um banco de dados internacional, visando ao estabelecimento de um tratamento de suporte precoce.


INTRODUCTION: Autosomal Recessive Polycystic Kidney Disease (ARPKD) is an important pediatric cause of morbidity and mortality, with a variable clinical spectrum. METHODS: The clinical presentation and evolution of 25 patients (Pts) were analyzed by clinical record review, according to the forms proposed by Guay-Woodford et al. Morbidities associated with the disease were evaluated with respect to their frequencies and age of onset. RESULTS: The median age at the diagnosis was 61.45 months (0 to 336.5 months), with similar gender distribution (52 percent of the patients were female). A family ARPKD history was found in 20 percent of the cases (5/25), two of them associated with consanguinity. On arrival, arterial hypertension (SAH) was diagnosed in 56 percent of the Pts (14/25); chronic kidney disease stage > 2 (CKD > 2) in 24 percent (6/25); urinary tract infection (UTI) in 40 percent (10/25); and portal hypertension (PH) in 32 percent of the cases (8/25). Eighty percent of the initial abdominal ultrasonograms detected echogenic kidneys with gross cysts and 64 percent demonstrated normal liver and biliary ducts. ACE inhibitors were used in 36 percent of the analyzed patients, beta-blockers in 20 percent, calcium channel blockers in 28 percent, and diuretics in 36 percent of them. In the final evaluation, after an average follow-up time of 152.2 months (29.8 to 274.9 months), SAH was detected in 76 percent of the cases, CKD > 2 in 44 percent, UTI in 52 percent and PH in 68 percent. CONCLUSION: The high morbidity and mortality associated with ARPKD justify the assembly of an international database, with the aim of establishing an early therapeutic support.


Asunto(s)
Humanos , Masculino , Femenino , Recién Nacido , Patología , Riñón Poliquístico Autosómico Recesivo/diagnóstico , Riñón Poliquístico Autosómico Recesivo/epidemiología
20.
Pediatr Transplant ; 8(6): 558-60, 2004 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-15598323

RESUMEN

Congenital hepatic fibrosis (CHF) is an uncommon autosomal recessive malformation. It may be associated with extrahepatic manifestations such as polycystic kidney disease. The main consequence is portal hypertension and bleeding from varices. Despite liver transplantation as a therapeutic option for this patient, long-term impact of liver transplantation on renal functions of patients with autosomal recessive polycystic kidney disease with associated liver disease is not well known. In this study, we aimed to analyze the patient's renal function after liver transplantation by creatinine clearance, glomerular filtration rate, and renal resistive indexes. Between March 1997 and September 2002, three of 50 orthotopic liver transplantation (OLT) were performed because of CHF associated with ARPKD at Ege University Organ Transplantation and Research Center. Baseline immunosuppression consisted of prednisone and cyclosporine A (CSA). The mean follow-up of the patients was 2.1 yr. Blood urea and creatinine levels were decreased after operation in all patients and remained within the normal range at the sixth and 12th month, whereas the level of the third patient were increased at the 18th month. RRI values of patients were not found different at the sixth month whereas, RRI values of patients were decreased at the 12th month and remained unchanged at the 18th month of follow-up. During the study period hypertension developed in one patient at the 16th month and resolved with antihypertensive treatment and decreasing dosage of CSA. Kidney function has remained satisfactory in all of the patients despite the use of cyclosporine. OLT can provide good survival in patients with CHF associated with ARPKD.


Asunto(s)
Riñón/fisiopatología , Cirrosis Hepática/congénito , Cirrosis Hepática/cirugía , Trasplante de Hígado/fisiología , Riñón Poliquístico Autosómico Recesivo/fisiopatología , Adolescente , Creatinina/sangre , Ciclosporina/uso terapéutico , Tasa de Filtración Glomerular , Humanos , Inmunosupresores/uso terapéutico , Riñón Poliquístico Autosómico Recesivo/epidemiología
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