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[Acute water intoxication induced by oxytocin]
Annales Francaises D'Anesthesie Et De Reanimation
|January 1, 1985
Summary
Oxytocin can cause water intoxication, a rare complication with neurological symptoms like hyponatraemia. Careful monitoring during labor is crucial to prevent this potentially fatal condition in mothers and newborns.
Area of Science:
- Obstetrics and Gynecology
- Reproductive Medicine
- Clinical Pharmacology
Background:
- Oxytocin is widely used for labor induction and augmentation.
- Water intoxication is a rare but serious adverse effect of oxytocin administration.
- Understanding the pathophysiology and risk factors is essential for patient safety.
Observation:
- A case of oxytocin-induced water intoxication in a 30-year-old gravid woman is presented.
- The patient exhibited severe neurological symptoms and biological signs of hyponatraemia with low plasma osmolality.
- Oliguria was a consistent alarm signal, attributed to oxytocin's effect on renal water excretion.
Findings:
- Oxytocin-induced water intoxication presents with significant neurological manifestations.
- Hyponatraemia and decreased plasma osmolality are key biological markers.
- Prompt treatment typically resolves clinical and biological signs, but severe outcomes like maternal or neonatal death are possible.
Implications:
- Clinical vigilance and monitoring of oxytocin infusion rates are paramount.
- Minimizing fluid intake and ensuring proportional salt administration are critical preventive measures.
- Utilizing constant flow-rate pumps can enhance the safety of oxytocin administration during labor.