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Serious risk related to oral use of sodium phosphate solution


Authors: I. Hoffmanová;  M. Anděl
Authors place of work: II. interní klinika 3. lékařské fakulty UK a FN Královské Vinohrady Praha, přednosta prof. MUDr. Michal Anděl, CSc.
Published in the journal: Vnitř Lék 2013; 59(12): 1111-1116
Category: Case Report

Summary

Sodium phosphate solutions are commonly used to cleanse the bowel in preparation for colonoscopy, for barium enema or surgical procedures and eventually for treatment of severe constipation. Though relatively safe, these drugs must be used with caution in patients with kidney disease, small intestinal disorders, or poor gut motility and are prohibited in renal insufficiency and bowel obstruction. Especially elderly patients are at increased risk for phosphate intoxication due to decreased glomerular filtration rate, concomitant medication use, and systemic and gastrointestinal diseases. Sodium phosphate solution could induce by at-risk patient’s serious elec­trolyte abnormalities (hyperphosphatemia, hypocalcemia, hypokalemia) and acute kidney injury caled acute phosphate nephropathy, which is potentially life-threatening condition with slowly progressive renal insufficiency. This article gives a report on two cases of severe adverse effects after administration of oral sodium phosphate solution: an elderly women who developed increase in serum phosphate with compensatory severe hypokalcemia with tetany; and an elderly man who developed acute phosphate nephropathy following colon preparation prior to colonoscopy and barium enema. Especially in elderly and in patients in whom sodium phosphate solution is contraindicated or should be used with caution, we recommend to use isosmotic macrogol (polyethylene glycol) solution for the bowel cleansing a for the treatment of constipation.

Key words:
sodium phosphate solutions – laxative – electrolyte abnormalities – hyperphosphatemia – hypocalcemia – acute phosphate nephropathy – constipation – bowel cleansing


Zdroje

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Štítky
Diabetology Endocrinology Internal medicine

Článok vyšiel v časopise

Internal Medicine

Číslo 12

2013 Číslo 12
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