TURP syndrome.
TURP (transurethral resection of the prostate) syndrome - it is a combination of fluid overload and hyponatremia, which occurs when large volumes of irrigation fluid are absorbed via open venous sinuses. The most commonly used irrigant is glycine 1.5% in water, which is hypotonic (osmolality 220 mosm/L). On average, patients absorb a total of 1–1.5 L, but absorption of up to 4–5 L can be possible.
TURP Syndrome is more likely to occur in patients with poorly controlled heart failure. Development of TURP syndrome depends on: fluide volume and pressure ( > 100cm H2O), duration of surgery ( > 1 hour), blood loss etc.
Symptoms:
- restlessness
- headache
- tachypnea, respiratory distress
- hypoxia
- frank pulmonary edema
- nausea, vomiting
- visual disturbances
- confusion, convulsions, and coma
- tachycardia and hypertension (or bradycardia and hypotension in case of rapid absorption).
The diagnosis can be confirmed by low serum sodium. An acute fall to < 120 mEq/L is always symptomatic.
Management:
- Terminate Surgery as soon as possible;
- IV fluids stopped;
- Check serum Na+ and Hb;
- Give furosemide 40 mg IV;
- If Na+ < 120 mEq/L and is associated with neurological signs, consider giving hypertonic saline (NaCl 1.8–3%) to restore Na+ to around 125 mEq/L;
- Remember! Over-rapid correction of hyponatremia can result in permanent neurological damage (central pontine myelinolysis);
- Give 1.2–2.0 ml/kg/hr of 3% saline until symptomatic improvement. This should produce a rise in serum Na+ of 1–2 mEq/L/hr;
- Check the level of Na+ every hour.