Peritoneal equilibration test at home.
2002
The peritoneal equilibration test (PET) has been widely used as a standardized means for estimating solute transport. However, the procedure is rather complex, and patients must spend more than half a day in the hospital.The fast PET is an alternative method, but the results are not reliable in patients whose peritoneal catheters drain poorly. We postulated that patients could perform the PET at home if educated well about the procedure. To that purpose, we prepared three types of visual aids that introduce the PET procedure: a VCR tape, a DVD disc, and a brochure with photographs. Equilibration tests were performed using the twin-bag system. For marking fluid level indicator lines (200 mL and 10 mL), patients are given a guide sheet on which the fresh dialysate bag is placed. After an 8- to 12-hour overnight dwell, the dwelled dialysate is drained completely into the empty bag. Immediately after the patient infuses 2 L of fresh 2.5% glucose dialysis solution, 200 mL of that solution is drained into the bag on which the two fluids levels were previously marked. After mixing, about 190 mL of the dialysate is re-infused, and the remaining 10 mL (the amount indicated by a guide mark at the comer) is left within the bag. After a 4-hour dwell, the dialysate is completely drained into another twin-bag. A standard PET was also performed on a differentday, and the data were compared with those from the home PET Significant correlations were seen in D/D 0 and in drain volume between the home PET and the standard PET (n = 10; D/D 0 : 0.385 ′ 0.054 vs. 0.371 ′ 0.052 respectively, r = 0.872, p = 0.0004; drain volume: 2340 ′ 123 mL vs. 2372 ′ 90 mL respectively, r = 0.788, p = 0.0048). We conclude that the home PET is a clinically useful alternative to the standard PET, saving time and labor while maintaining accuracy.
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