A Standard, Noninvasive Monitoring of Hematocrit Algorithm Improves Blood Pressure Control in Pediatric Hemodialysis Patients

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Figure 1.
Change in casual BP during the 6-mo study period. Month 0 represents the baseline period. Mean BP index represents the mean over the last week of the respective study month. DBP, diastolic BP; HD, hemodialysis; SBP, systolic BP.
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Figure 2.
Effect of noninvasive monitoring (NIVM) algorithm on ambulatory BP monitoring (ABPM) profile. (A) Daytime SBP index. (B) Daytime DBP index. (C) Nighttime SBP index. (D) Nighttime DBP index. All BP were indexed to ABPM 95th percentile values for gender and height (24).

Table 1.

Effect of NIVM algorithm on outcome parameters^a

Outcome Variable	Baseline	End of Study	P^b
Estimated dry weight (kg)	48.84 ± 16.83	48.78 ± 15.92	NS
Pre-HD weight (kg)	51.69 ± 18.74	52.11 ± 16.65	NS
Post-HD weight (kg)	49.25 ± 17.14	49.24 ± 15.62	NS
Casual pre-HD SBP index	0.99 ± 0.16	0.93 ± 0.12	0.08
Casual pre-HD DBP index	0.85 ± 0.24	0.79 ± 0.19	NS
Casual post-HD SBP index	0.93 ± 0.13	0.86 ± 0.11	0.04
Casual post-HD DBP index	0.76 ± 0.22	0.69 ± 0.15	0.08
LVMI (g/m^2.7; n = 11)	41.6 ± 16.9	41.2 ± 14.3	NS

↵^a DBP, diastolic BP; HD, hemodialysis; LVMI, left ventricular mass index; NIVM, noninvasive monitoring of hematocrit; SBP, systolic BP. BP index equals measured BP divided by the 95th percentile value.
↵^b P > 0.10 is reported as NS.