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Dialysis disequilibrium on CKRT: avoiding the steep slippery slope.
Pediatric Nephrology 2021 September
BACKGROUND: Current guidelines for initiation of kidney replacement do not include specific recommendations for prescription parameters and monitoring.
CASE OUTLINE: A 16-year-old girl presented with kidney failure with creatinine of 19.8 mg/dL and BUN of 211 mg/dL. She initiated continuous kidney replacement therapy (CKRT) with clearance of 1,300 mL/min/1.73 m2 which was increased to 1,950 mL/min/1.73 m2 at 17 h of stable therapy.
COMPLICATIONS: At 31 h of therapy, she developed generalized seizure activity. CT imaging was negative for acute intracranial process, and EEG demonstrated diffuse encephalopathy. CKRT was discontinued, and BUN was noted to be 47 mg/dL at that time (a 79% reduction from presenting BUN).
KEY MANAGEMENT POINTS: • The potential for development of DDS is not isolated to intermittent hemodialysis and may occur later in presentation. • A decreased clearance rate should be considered in those with risk factors for development of dialysis disequilibrium syndrome (DDS). • Frequent monitoring of BUN/serum osmolality is important to allow for adjustment of the KRT prescription following initiation of therapy. • Additional research is needed to guide risk assessment for DDS and therapeutic timing and goals in the early stages of KRT initiation. • Inclusion of more specific guidelines surrounding DDS would assist in providing important support for nephrologists.
LIST OF RELEVANT GUIDELINES: KDIGO clinical practice guideline for acute kidney injury [1] Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease [2] The Renal Association Clinical Practice Guideline Acute Kidney Injury (AKI) [3] The Japanese Clinical Practice Guideline for Acute Kidney Injury [4].
CASE OUTLINE: A 16-year-old girl presented with kidney failure with creatinine of 19.8 mg/dL and BUN of 211 mg/dL. She initiated continuous kidney replacement therapy (CKRT) with clearance of 1,300 mL/min/1.73 m2 which was increased to 1,950 mL/min/1.73 m2 at 17 h of stable therapy.
COMPLICATIONS: At 31 h of therapy, she developed generalized seizure activity. CT imaging was negative for acute intracranial process, and EEG demonstrated diffuse encephalopathy. CKRT was discontinued, and BUN was noted to be 47 mg/dL at that time (a 79% reduction from presenting BUN).
KEY MANAGEMENT POINTS: • The potential for development of DDS is not isolated to intermittent hemodialysis and may occur later in presentation. • A decreased clearance rate should be considered in those with risk factors for development of dialysis disequilibrium syndrome (DDS). • Frequent monitoring of BUN/serum osmolality is important to allow for adjustment of the KRT prescription following initiation of therapy. • Additional research is needed to guide risk assessment for DDS and therapeutic timing and goals in the early stages of KRT initiation. • Inclusion of more specific guidelines surrounding DDS would assist in providing important support for nephrologists.
LIST OF RELEVANT GUIDELINES: KDIGO clinical practice guideline for acute kidney injury [1] Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease [2] The Renal Association Clinical Practice Guideline Acute Kidney Injury (AKI) [3] The Japanese Clinical Practice Guideline for Acute Kidney Injury [4].
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