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KMID : 1102220220410020150
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Kidney Research and Clinical Practice
2022 Volume.41 No. 2 p.150 ~ p.155
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Peritoneal dialysis adequacy: a paradigm shift
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Chen Chang Huei
Teitelbaum Isaac
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Abstract
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For the past 30 years, nephrologists have focused on a single minimal threshold of Kt/Vurea to determine the adequacy of peritoneal dialysis (PD). To date, there is no evidence that shows Kt/Vurea to be a good surrogate measure of uremic symptom control or nutritional state in patients on PD. Volume of distribution (Vurea) generally is considered equivalent to total body water (TBW). Yet, accurate determination of TBW is difficult. The most recent International Society for Peritoneal Dialysis practice recommendations on prescribing high-quality PD emphasized incorporation of multiple measures rather than the single value of Kt/Vurea. These measures include shared decision-making between the patient and the care team and assessment of health-related quality of life, burden of uremic symptoms, presence of residual kidney function, volume status, and biochemical measures including serum potassium and bicarbonate levels. In some cases, PD prescriptions can be tailored to the patient priorities and goals of care, such as in frail and pediatric patients. Overall, there has been a paradigm shift in providing high-quality care to PD patients. Instead of focusing on small solute clearance in the form of Kt/Vurea, nephrologists are encouraged to use a more comprehensive assessment of the patient as a whole.
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KEYWORD
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Adequacy, Metabolic acidosis, Peritoneal dialysis, Residual kidney function, Volume overload
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