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Acute and chronic inflammation in pediatric patients receiving hemodialysis
Stuart L Goldstein1, Helen Currier, Lynne Watters
1Baylor College of Medicine, Renal Dialysis Unit, Texas Children's Hospital, Houston, Texas 77030, USA. stuartg@bcm.tmc.edu
Insights
Pediatric hemodialysis patients show chronic inflammation linked to dialysis vintage and adequacy, not the treatment itself. More frequent dialysis or better cytokine clearance may improve this inflammatory state.
Area of Science:
- Pediatric Nephrology
- Inflammation Biology
- Renal Replacement Therapy
Background:
- Maintenance hemodialysis in children can lead to a pro-inflammatory state.
- Understanding inflammation markers is crucial for managing pediatric patients on hemodialysis.
Purpose of the Study:
- To evaluate chronic and acute inflammation in pediatric patients undergoing maintenance hemodialysis.
- To identify factors contributing to inflammation in this population.
Main Methods:
- Serum cytokine levels (TNF-alpha, IL-1beta, IL-10, IL-6) were measured before and after hemodialysis sessions.
- C-reactive protein (CRP) levels assessed chronic inflammation.
- Correlation analysis with dialysis vintage and hemodialysis adequacy (eqKt/V) was performed.
Main Results:
- Acute inflammation markers (TNF-alpha, IL-1beta) significantly increased post-hemodialysis.
- Elevated CRP levels indicated a chronic inflammatory state in most patients.
- Chronic inflammation correlated with dialysis vintage and negatively with hemodialysis adequacy.
Conclusions:
- Pediatric hemodialysis patients exhibit a chronic inflammatory state associated with dialysis vintage and adequacy.
- Treatment strategies like more frequent dialysis or enhanced cytokine clearance may reduce inflammation.
Objectives:
To assess chronic and acute inflammation in children receiving maintenance hemodialysis.
Study Design:
To assess markers of acute inflammation, serum levels (ELISA) of the cytokines tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta, IL-10, and IL-6, 3 to 5 mL of serum was obtained from 13 pediatric patients (mean patient weight, 37.0+/-15.2 kg; mean age, 14.6+/-4.6 years) before and 30 minutes and 24 hours after a routine midweek hemodialysis treatment session. Chronic inflammation was assessed by serum C-reactive protein (CRP) levels.
Results:
Early-response cytokines TNF-alpha at 30 minutes (5.84+/-0.94 to 9.67+/-0.92 pg/mL; P=.002) and 24 hours (5.84+/-0.94 to 9.54+/-1.05 pg/mL; P=.008) and IL-1beta at 30 minutes (17.19+/-2.00 to 26.17+/-1.12 pg/mL; P=.001) and 24 hours (17.19+/-2.00 to 23.01+/-1.13 pg/mL; P=.02) increased significantly after hemodialysis. Later-response cytokines IL-10 and IL-6 activation was not significant. CRP levels were elevated in 10 of 13 patients (mean, 14.7+/-9.5mg/L; range, 7.2-38.8 mg/L) and correlated with dialysis vintage. Baseline IL-6 and IL-10 levels correlated with dialysis vintage and correlated negatively with eqKt/V.
Conclusions:
We observed a chronic inflammatory state in pediatric hemodialysis patients not related to the hemodialysis treatment but rather dialysis vintage and hemodialysis adequacy. We suggest that either more frequent dialysis or enhanced cytokine clearance may ameliorate the chronic inflammatory state observed in pediatric patients receiving hemodialysis.
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