Bone disease in patients with chronic kidney disease under conservative management
Autor: | Maria Inês Barreto Silva, Rachel Bregman, Carlos Perez Gomes, Maria Eugênia Leite Duarte, David Dorigo, Carla Cavalheiro da Silva Lemos |
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Jazyk: | angličtina |
Rok vydání: | 2005 |
Předmět: |
Nephrology
Male medicine.medical_specialty Bone density Bone disease Chronic kidney failure Urology Renal function lcsh:Medicine Bone resorption Osteodistrofia renal Body Mass Index chemistry.chemical_compound Absorptiometry Photon Chronic kidney disease-mineral and bone disorder Bone Density Internal medicine medicine Humans Renal osteodystrophy Renal dialysis Chronic Kidney Disease-Mineral and Bone Disorder Creatinine Kidney diseases business.industry Reabsorção óssea lcsh:R General Medicine medicine.disease Surgery chemistry Nefropatias Parathyroid Hormone Kidney Failure Chronic Insuficiência renal crônica Female Hemodiálise business Biomarkers Kidney disease |
Zdroj: | Sao Paulo Medical Journal, Volume: 123, Issue: 2, Pages: 83-87, Published: MAR 2005 São Paulo Medical Journal, Vol 123, Iss 2, Pp 83-87 Sao Paulo Medical Journal v.123 n.2 2005 São Paulo medical journal Associação Paulista de Medicina instacron:APM |
Popis: | CONTEXT AND OBJECTIVE: Few studies have focused on bone disease in patients with chronic kidney disease under conservative treatment. The objective was to evaluate bone disease in patients with chronic kidney disease. DESIGN AND SETTING: Case series, at the Nephrology Division, Hospital Universitário Pedro Ernesto. METHODS: 131 patients with creatinine clearance from 10 to 60 ml/min/1.73 m² were followed up for at least one year. Serum creatinine, albumin, calcium, phosphorus, alkaline phosphatase, total CO2 (tCO2), intact parathyroid hormone (iPTH), and alkaline phosphatase were measured. Creatinine clearance was calculated from 24-hour urine creatinine measurements and protein ingestion estimates from urea assays. RESULTS: Patients presenting creatinine clearance < 30 ml/min/1.73 m² had higher iPTH values, but normal serum levels for calcium, phosphorus, alkaline phosphatase and tCO2. Patients presenting iPTH values of twice the normal upper limit (144 pg/ml) showed lower tCO2 values. Bone alkaline phosphatase was evaluated in 37 patients with creatinine clearance < 30 ml/min/1.73 m², showing correlation with alkaline phosphatase but not with parathyroid hormone. Bone biopsy on nine patients with creatinine clearance < 30 ml/min/1.73 m² and iPTH > 144 pg/ml showed osteitis fibrosa (4), mild lesion (4) and high turnover (1). CONCLUSION: The present data suggest the importance of early control for iPTH and metabolic acidosis, among patients under conservative management for chronic kidney disease, in order to prevent complications related to bone disease. CONTEXTO E OBJETIVO: A doença óssea em pacientes com doença renal crônica sob tratamento conservador tem sido pouco estudada. O objetivo do estudo foi avaliar a doença óssea em pacientes com doença renal crônica. TIPO DE ESTUDO E LOCAL: Estudo de casos, na Disciplina de Nefrologia, Hospital Universitário Pedro Ernesto. MÉTODOS: Foram avaliados por pelo menos um ano 131 pacientes com clearance de creatinina variando de 10 a 60 ml/min/1,73 m². No plasma, foram medidos creatinina, albumina, cálcio, fósforo, fosfatase alcalina, CO2 total (tCO2), hormônio paratiroidiano intacto (iPTH) e fosfatase alcalina. Da urina de 24 horas, foram avaliadas o clearance de creatinina e a ingestão protéica. RESULTADOS: Pacientes com clearance de creatinina < 30 ml/min/1,73 m² apresentaram maior nível de iPTH, apesar de valores normais para.cálcio, fósforo, fosfatase alcalina e tCO2. Pacientes com valores de iPTH duas vezes acima do valor superior da normalidade (144 pg/ml) apresentaram menor valor de tCO2. Fosfatase alcalina óssea foi avaliada em 37 pacientes com clearance de creatinina < 30 ml/min/1,73m², mostrando correlação com a fosfatase alcalina, mas não com o iPTH. Biópsia óssea em nove pacientes com clearance de creatinina < 30 ml/min/1,73m² e iPTH > 144 pg/ml mostrou osteíte fibrosa (4), lesão mínima (4) e alto remodelamento (1). CONCLUSÃO: Os resultados apontam para a importância de um controle precoce do iPTH e da acidose metabólica em pacientes sob tratamento conservador para doença renal crônica, no intuito de prevenir as complicações relacionadas com a doença óssea. |
Databáze: | OpenAIRE |
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