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Published on: May 26, 2023
Continuous hemodiafiltration in children after cardiac surgery
Kenichi Watanabe1, Yasuyuki Suzuki, Takeshi Goto
1Department of Thoracic and Cardiovascular Surgery, Hirosaki University School of Medicine, Hirosaki, Aomori, Japan.
Insights
Continuous hemodiafiltration (CHDF) effectively treated acute renal failure in pediatric patients after congenital cardiac surgery. Most patients recovered normal renal function, demonstrating CHDF as a viable treatment option for this critical complication.
Area of Science:
- Pediatric Nephrology
- Cardiovascular Surgery
- Critical Care Medicine
Background:
- Acute renal failure (ARF) is a significant complication following congenital cardiac surgery, leading to increased morbidity and mortality in pediatric patients.
- Continuous hemodiafiltration (CHDF) is an established treatment modality for pediatric renal replacement therapy.
Purpose of the Study:
- To retrospectively evaluate the efficacy and outcomes of CHDF in managing ARF in pediatric patients who underwent congenital cardiac surgery.
- To assess the impact of CHDF on renal function recovery and identify potential complications associated with the treatment.
Main Methods:
- Retrospective analysis of seven pediatric patients (23 days to 9 years) who received CHDF for ARF post-congenital cardiac surgery between April 2002 and January 2009.
- Data collected included patient demographics, duration of CHDF, ultrafiltration rates, and pre- and post-treatment serum creatinine and urea levels.
Main Results:
- Renal function recovered to normal in five out of seven (71%) patients.
- Significant reductions in serum creatinine (2.3 to 0.5 mg/dL) and urea (43.7 to 13.5 mg/dL) were observed post-CHDF (P < 0.05).
- Common complications included thrombocytopenia in all patients, requiring platelet concentrate infusion, and transient hypotension in one patient.
Conclusions:
- CHDF is an effective strategy for treating renal dysfunction in pediatric patients following congenital cardiac surgery.
- Despite complications like thrombocytopenia, CHDF facilitates renal function recovery and offers a beneficial treatment option.
Abstract:
Acute renal failure (ARF) after congenital cardiac surgery remains a serious complication and leading cause of morbidity and mortality. Continuous hemodiafiltration (CHDF) is presently accepted for pediatric applications. We retrospectively evaluated the effects of CHDF against ARF after congenital cardiac surgery at our hospital. We analyzed data from seven patients aged 23 days to 9 years and weighing 1.7-22.4 kg requiring dialysis therapy using CHDF after congenital cardiac surgery between April 2002 and January 2009. One patient who died could not be weaned from extracorporeal membrane oxygenation support and another died of multiple organ failure. Renal function recovered to normal in the other five (71%) patients. Treatment by CHDF lasted from 14 to 680 h and net ultrafiltration was 3.5 ± 1.4 mL/kg/h. Serum creatinine and urea concentrations were, respectively, 2.3 ± 1.6 and 43.7 ± 17.0 mg/dL before, and 0.5 ± 0.2 and 13.5 ± 8.1 mg/dL, after CHDF (P < 0.05). Thrombocytopenia developed in all patients, and platelet concentrates (0.76 ± 0.7 mL/kg/h) were infused during CHDF. Hypotension developed after changing the CHDF set in one patient. We suggest that CHDF is an effective alternative strategy for treating renal dysfunction after congenital cardiac surgery.
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