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An easily overlooked iatrogenic cause of renal failure

N Demoulin1, M Jadoul, J P Cosyns

  • 1Department of Nephrology, Cliniques Universitaires St. Luc, Université Catholique de Louvain Medical School, Brussels, Belgium.

Clinical Nephrology
|September 17, 2008
PubMed

Insights

Oral sodium phosphate purgatives can cause acute phosphate nephropathy, leading to moderate renal failure. Increased healthcare provider awareness and preventive strategies are crucial for patient safety.

Area of Science:

  • Nephrology
  • Gastroenterology
  • Toxicology

Background:

  • Oral sodium phosphate (OSP) solutions are commonly used as bowel purgatives before colonoscopy.
  • Acute phosphate nephropathy (APN) is a rare but serious complication associated with OSP use.

Observation:

  • A 50-year-old male patient developed moderate renal failure following colonoscopy.
  • The patient had a history of recent oral sodium phosphate purgative use.

Findings:

  • Renal biopsy confirmed acute phosphate nephropathy as the cause of renal failure.
  • The patient experienced persistent renal impairment 8 months post-diagnosis.
  • Initial diagnosis was delayed, highlighting a potential gap in clinical recognition.

Implications:

  • Increased awareness of APN among healthcare professionals is essential for timely diagnosis and management.
  • Preventive strategies for OSP-induced nephropathy require further discussion and implementation.
  • This case underscores the importance of considering OSP-induced nephropathy in patients with renal failure post-colonoscopy.

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