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Complications of continuous renal replacement therapy in critically ill children: a prospective observational
Maria J Santiago1, Jesús López-Herce, Javier Urbano
1Pediatric Intensive Care Service, Hospital General Universitario Gregorio Marañón, Dr Castelo Madrid, 28009, Spain. macosantiago77@yahoo.es
Insights
Complications during continuous renal replacement therapy (CRRT) are frequent in critically ill children. This study identified catheterization issues, hypotension, hemorrhage, and electrolyte disturbances as common, emphasizing the need for strict monitoring.
Area of Science:
- Pediatric Critical Care Medicine
- Nephrology
- Pediatric Intensive Care
Background:
- Continuous renal replacement therapy (CRRT) is vital for critically ill children but carries risks.
- Prospective data on CRRT-related complications in pediatric populations are limited.
- Understanding these complications and their risk factors is crucial for patient safety.
Purpose of the Study:
- To prospectively analyze the incidence of CRRT-related complications in critically ill children.
- To identify patient and treatment-related risk factors associated with these complications.
Main Methods:
- A prospective, single-center observational study included critically ill children undergoing CRRT.
- Complications assessed included catheterization issues, hypotension, hemorrhage, and electrolyte disturbances.
- Data were analyzed against patient characteristics, clinical severity, and CRRT technique parameters.
Main Results:
- Of 174 children, 7.4% had catheterization problems (more common in infants <12 months or <10 kg).
- Hypotension occurred in 30.4% and hemorrhage in 10.3%, with no identified risk factors.
- Electrolyte levels (sodium, chloride, phosphate) decreased within 72 hours, unrelated to variables or mortality.
Conclusions:
- CRRT-related complications are common and potentially serious in pediatric patients.
- Hypotension during connection and electrolyte disturbances are the most frequent issues.
- Rigorous monitoring and control of CRRT in children are essential.
Introduction:
Continuous renal replacement therapy (CRRT) frequently gives rise to complications in critically ill children. However, no studies have analyzed these complications prospectively. The purpose of this study was to analyze the complications of CRRT in children and to study the associated risk factors.
Methods:
A prospective, single-centre, observational study was performed in all critically ill children treated using CRRT in order to determine the incidence of complications related to the technique (problems of catheterization, hypotension at the time of connection to the CRRT, hemorrhage, electrolyte disturbances) and their relationship with patient characteristics, clinical severity, need for vasoactive drugs and mechanical ventilation, and the characteristics of the filtration techniques.
Results:
Of 174 children treated with CRRT, 13 (7.4%) presented problems of venous catheterization; this complication was significantly more common in children under 12 months of age and in those weighing less than 10 kg. Hypotension on connection to CRRT was detected in 53 patients (30.4%). Hypotension was not associated with any patient or CRRT characteristics. Clinically significant hemorrhage occurred in 18 patients (10.3%); this complication was not related to any of the variables studied. The sodium, chloride, and phosphate levels fell during the first 72 hours of CRRT; the changes in electrolyte levels during the course of treatment were not found to be related to any of the variables analyzed, nor were they associated with mortality.
Conclusions:
CRRT-related complications are common in children and some are potentially serious. The most common are hypotension at the time of connection and electrolyte disturbances. Strict control and continuous monitoring of the technique are therefore necessary in children on CRRT.
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