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Erschienen in:
01.06.2015 | Original Article
Interdialytic weight gain in oligoanuric children and adolescents on chronic hemodialysis
Erschienen in: Pediatric Nephrology | Ausgabe 6/2015
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Background
Little is known about the clinical impact of interdialytic weight gain (IDWG) on oligoanuric children undergoing chronic hemodialysis (HD).
Methods
We retrospectively assessed IDWG, left ventricular mass index (LVMI) and its changes (ΔLVMI), pre-HD systolic and diastolic blood pressure (DBP), residual urine output, Kt/V, the frequency of intradialytic symptoms, normalized protein catabolic rate, and the 3-month change in the dry weight of 16 hemodialyzed oligoanuric patients with a median age of 14.8 years (range 5.0–17.9).
Results
There was a significant correlation between IDWG and median LVMI (r 0.55, p = 0.026), which was 27.3 g/m2.7 (22.5–37.6) in the patients with a median IDWG of <4 %, and 44.3 g/m2.7 (28.2–68.7) in those with a median IDWG of >4 % (p = 0.003). None of the four patients with an IDWG of <4 % showed left ventricular hypertrophy, compared with 10 of the 12 patients (83.3 %) with an IDWG of >4 % (p = 0.003); the former also had a better median ΔLVMI (−33.5 % vs −13.0 %; p = 0.02) and a lower median DBP sds (0.24 vs 1.72, p = 0.04).
Conclusions
There is a significant correlation between IDWG and LVMI in pediatric oligoanuric patients on chronic HD: those with an IDWG of >4 % are at a higher risk of left ventricular hypertrophy.