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Clinical |
Department of Internal Medicine, University Hospital, Botucatu School of Medicine, São Paulo State University, São Paulo, Brazil
Correspondence to: D. Ponce Gabriel, Department of Internal Medicine, Hospital
das Clínicas da Faculdade de Medicina de Botucatu, Universidade
Estadual Paulista - UNESP, Rubião Júnior, P.O. Box 584, CEP
18618-970, São Paulo,
Brazil.
dponcegabriel{at}uol.com.br
Background: Peritoneal dialysis (PD) is still widely used
for acute renal failure (ARF) in developing countries despite concerns about
its inadequacy. Continuous PD has been evaluated in ARF by analyzing the
resolution of metabolic abnormality and normalization of plasma pH,
bicarbonate, and potassium.
Methodology: A prospective study was performed on 30 ARF
patients who were assigned to high-dose continuous PD (Kt/V = 0.65 per
session) via a flexible catheter (Tenckhoff) and automated PD with a cycler.
Fluid removal, pH and metabolic control, protein loss, and patient outcome
were evaluated.
Results: Patients received 236 continuous PD sessions; 76%
were admitted to ICUs. APACHE II score was 32.2±8.65. BUN
concentrations stabilized after 3 sessions, creatinine after 4, and
bicarbonate and pH after 2. Fluid removal was 2.1±0.62 L/day.
Creatinine and urea clearances were 15.8±4.16 and 17.3±5.01
mL/minute respectively. Normalized creatinine clearance and urea Kt/V values
were 110.6±22.5 L/week/1.73 m2 body surface area and
3.8±0.6 respectively. Solute reduction index was 41%±6.5% per
session. Serum albumin values remained stable in spite of considerable protein
losses (median 21.7 g/day, interquartile range 9.1-29.8 g/day). Regarding ARF
outcome, 23% of patients presented renal function recovery, 13% remained on
dialysis after 30 days of follow-up, and 57% died.
Conclusion: High-dose continuous PD by flexible catheter
and cycler was an effective treatment for ARF. It provided high solute
removal, allowing appropriate metabolic and pH control, and adequate dialysis
dose and fluid removal. Continuous PD can therefore be considered an
alternative to other forms of renal replacement therapy in ARF.
KEY WORDS: KEY WORDS:; Acute renal failure; continuous peritoneal dialysis; Kt/V; treatment.
Received 5 April 2006; accepted 23 November 2006.
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