Could mini-PET be used to instead of 4 h original-PET to assess peritoneal permeability in children on peritoneal dialysis?

Figures & data

Table 1. Peritoneal transport characteristic from mini-PET (after 1 h of dwell time) and original PET (after 4-h dwell time), clinical data for 26 patients (mean ± SE) and their correlation with D/P_creatinine.

	All patients (n = 26)		Correlation
	Mean ± SE	Min–max	r	p
PET
UF mL	90.9 ± 39.8	−550 − 500	−0.43	0.026
D/D0	0.40 ± 0.07	0.25 − 0.55	0.07	0.73
D/PCreat	0.76 ± 0.02	0.71 − 0.80	1
D/Purea	0.95 ± 0.013	0.92 − 0.98	0.69	<0.001
DipNaD	0.84 ± 5.9	−1.6 − 3.2	0.55	0.003
DipD/PNa	−0.09 ± 1.17	−2.5 − 2.3	0.55	0.003
D/PNa	0.94 ± 0.006	0.92 − 0.95	0.67	<0.001
NaRmmol	11.1 ± 5.6	−0.48 − 22.6	−0.28	0.15
Mini-PET
UF mL	182.5 ± 43.4	−330 − 750	−0.47	0.01
UFSP mL	103.1 ± 37.5	25.6 − 180.5	−0.29	0.1
FWT mL	79.3 ± 15.6	47.1 − 111.6	−0.62	0.001
D/D0	0.50 ± 0.14	0.45 − 0.56	−0.67	<0.001
D/PCreat	0.51 ± 0.02	0.46 − 0.56	1
D/Purea	0.66 ± 0.028	0.62 − 0.70	0.83	<0.001
DipNaD	−8.2 ± 1.26	−10.7, −5.5	0.34	0.08
DipD/PNa	−0.60 ± 0.009	−0.79, −0.41	0.34	0.08
D/PNa	0.87 ± 0.006	0.86 − 0.89	0.45	0.01
Na Sieving	0.93 ± 0.009	0.91 − 0.95	0.3	0.1
NaR mmol	14.3 ± 5.27	3.4 − 25.16	−0.31	0.1

Table 2. Comparison of peritoneal transport groups categorized according to D/P_Creat during both peritoneal equilibrium tests.

		Mini-PET with 3.86% (n = 26)
	Categories	Low	Average	High
Original PET with  2.27% (n = 26)	Low	3	0	0
	Average	2	15	1
	High	0	2	3
		κ = 0.610, p = 0.000

Table 3. Comparison of peritoneal transport groups categorized according to D/D₀ glucose during both peritoneal equilibrium tests.

		Mini-PET with 3.86% (n = 26)
	Categories	Low	Average	High
Original PET with  2.27% (n = 26)	Low	2	2	0
	Average	1	15	1
	High	0	2	3
		κ = 0.514, p = 0.000

Figure 1. (a) The linear correlation of D/P_Creatinin among the peritoneal equilibrium tests. (b) The linear correlation of D/P_Creatinin among the peritoneal equilibrium tests by the Bland–Altman plot.

Figure 2. The linear correlation between FWT and Dip NaDialysate, D/PNa during the 3.86% mini-PET.