How irrigation fluid can trigger a life-threatening urological emergency

Health · Published 2 November 2026 Swipe more like this →

In short: During a common procedure to clear urinary blockages, the very liquid used to keep the surgical site clear can enter the bloodstream. This can lead to TURP Syndrome—a rapid physiological crisis where sodium levels plummet, potentially causing cerebral edema and severe cardiovascular instability in a matter of minutes.

Transurethral Resection of the Prostate (TURP) is a standard surgical procedure used to treat enlarged prostates that obstruct urination. During the operation, a long tube equipped with a camera and tools is inserted into the urethra to remove pieces of the prostate gland. To facilitate this, surgeons use irrigation fluids. However, these fluids can be absorbed through the prostatic venous sinuses, leading to systemic complications known as TURP Syndrome. The prostate gland is roughly equivalent in size to a walnut and produces the white fluid that mixes with sperm. Surgeons may also send a small tissue sample from the site to a laboratory for cancer screening.

The primary mechanism involves dilutional hyponatraemia, where the absorption of hypotonic irrigation fluid rapidly lowers the concentration of sodium in the blood. This shift in electrolyte balance can cause cerebral oedema (swelling of the brain) and significant neurological manifestations. Patients, particularly the elderly who are at higher perioperative risk, may experience acute intraoperative deterioration characterized by cardiovascular instability. Beyond sodium shifts, the syndrome can involve glycine toxicity as part of its complex pathophysiology. These complications represent a significant urological emergency requiring specialized anaesthetic oversight.

Clinically, medical teams monitor for specific warning signs including ECG changes such as QRS widening, conduction delay, and bradycardia. Management requires precise sodium correction principles to stabilize the patient. Because the procedure can take around an hour depending on the size of the prostate being removed, rapid recognition of these symptoms is critical for anaesthetic management in both high-resource and resource-limited settings. Following the surgery, patients typically spend time in recovery and may require catheter flushing or pain medication for swelling. While some blood in the urine is expected for several days, persistent issues like incontinence should be monitored during the healing phase.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

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