DOI: https://doi.org/10.22141/2307-1257.8.3.2019.176451

24-hour blood pressure profile in children with chronic pyelonephritis and chronic kidney disease stages I–III

L.I. Vakulenko

Abstract


Background. Blood pressure (BP) monitoring is important for the management of patients with chronic kidney disease (CKD), both for the conventional cardiovascular risk reduction and long-term preservation of kidney function. The purpose was to study the features of 24-hour blood pressure profile in children with chronic pyelonephritis (CPN) and CKD stages ІІІІ. Materials and methods. A total of 94 patients aged from 6 to 17 years with chronic pyelonephritis in remission and CKD stages ІІІІ were examined. ­24-hour ambulatory blood pressure monitoring (ABPM) was carried out followed by mathematical processing. Results. Thus, a comparative analysis of the systolic (SBP) and diastolic blood pressure (DBP) indicators obtained within a single BP measurement and during 24-hour ABPM showed their differences in 25.5 % of cases. According to ABPM findings, 22.3 % of CKD children demonstrated elevated BP and 34.0 % — arterial hypertension (АН). It was found that the relative number of patients with sustained and labile AH gradually increased with a decrease in renal functions (mild-to-moderate CKD progression). The analysis of night-time BP dipping degree in patients with CKD revealed a gradual decrease in the relative number of patients with optimal BP dipping for both SBP (from 61.7 % in CKD stage I to 47.1 % in CKD stage III) and DBP (53.2 and 11.8 %, respectively; р = 0.0049). Night-peakers with night-time stable elevation of SBP (11.8 %) and DBP (29.4 %) were the patients with CKD stage III. Conclusions. The number of hypertensive patients increases among CPN children during CKD progression. AH in children with progressive nephropathy is characterized by a greater contribution from DBP and stable elevation of night-time BP.


Keywords


blood pressure; 24-hour blood pressure profile; children; chronic pyelonephritis; chronic kidney disease

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References


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