Assessment of peritoneal dialysis adequacy among continuous ambulatory peritoneal dialysis (CAPD) ppatients in Johannesburg Hospital

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dc.contributor.author Abdu, Aliyu
dc.date.accessioned 2010-09-29T11:06:10Z
dc.date.available 2010-09-29T11:06:10Z
dc.date.issued 2010-09-29
dc.identifier.uri http://hdl.handle.net/10539/8811
dc.description Dissertation in fufillment of the degree of MSc(Med), Faculty of Health Sciences, University of the Witwatersrand en_US
dc.description.abstract Introduction: Measurement of small solute clearance is the objective means of quantifying dose of peritoneal dialysis (PD) and various organisations have issued guidelines on target values. Assessment of PD adequacy involves other factors such as blood pressure control, anaemia management, mineral metabolism, nutritional status and ultrafiltration. Membrane transport characteristic is important for PD prescription on an individual patient basis and is related to patient outcome. In this study the adequacy of PD, using small solute clearance measurement as well as other factors, and membrane characteristics have been assessed and classification of patients using our own reference values is reported for the first time. Nutritional status has been studied and the use of simple tools such as the subjective global assessment has been validated for use in our patients. Materials and Methods: A cross sectional study involving 80 adult continuous ambulatory peritoneal dialysis (CAPD) patients. Peritoneal equilibration test (PET) was performed to assess the membrane characteristics; 24 hour dialysate fluid and urine samples were collected and used for the measurement of solute clearance, while nutritional status was assessed using the subjective global assessment (SGA) instrument, anthropometric measurements and serum albumin estimation. Results: The mean age was 38 ± 12.43 years, 42.3% were females and 86% were blacks. Mean duration on CAPD was 19.8 ± 20.67 months. The mean of 4 hour D/P creatinine was 0.74 ± 0.13 and based on this, 18% were high transporters, 33.8% high average, 36.9% low average and 12% low transporters. Mean kt/v urea was 1.72± 0.32, and the recommended level of 1.7 was achieved by 62.8% of the patients. Mean haemoglobin was 10.99 ± 2.14 g/dl and the recommended target value of 11-12g/dl was reached by 55.8% of the patients. The mean BMI vi was 24.76 ± 3.50, mean Mid Upper Arm Circumference (MUAC) was 28.53±3.89 cm and mean serum albumin was 37.10 ± 7.6 g/l. Based on SGA scores, 42% of our patients were well nourished, 50% moderately undernourished while 8% were severely malnourished. We noted significant correlations between SGA score and BMI and MUAC while there was none with serum albumin level. The mean serum calcium and phosphate levels were within normal though the mean PTH level was higher. Conclusion: The D/P creatinine at 4 hours was higher than those reported in the literature, though the distribution of the transport types was similar. The recommended targets of kt/v and haemoglobin were achieved by the majority of our patients. Mineral metabolism parameters were within normal range. Malnutrition is common and SGA is a reliable method for nutritional assessment in our patients. en_US
dc.language.iso en en_US
dc.subject renal dialysis en_US
dc.subject artificial kidney en_US
dc.title Assessment of peritoneal dialysis adequacy among continuous ambulatory peritoneal dialysis (CAPD) ppatients in Johannesburg Hospital en_US
dc.type Thesis en_US


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    Thesis (Ph.D.)--University of the Witwatersrand, 1972.

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