Continuous hemodiafiltration in children after cardiac surgery

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.