Measurement of optic nerve sheath diameter in patients undergoing transurethral resection of prostate under general anaesthesia for early diagnosis of TURP syndrome

Transurethral resection of prostate(TURP) is the standard surgical treatment for Benign

prostatic hyperplasia(BPH). Despite advancements in surgical techniques and irrigation fluids, it

carries the risk of TURP syndrome, a serious complication resulting from excessive absorption

of irrigation fluid causing cerebral edema. This leads to dilutional hyponatremia, cardiovascular

instability and neurological disturbances. Regional anaesthesia is commonly preferred for this

procedure but due to contraindications where general anaesthesia is not preferred this can be

diagnosed early by ultrasound measurement of optic nerve sheath diameter at baseline and at

end of surgery on both eyes, which is a simple, non invasive bedside technique that serves as a

surrogate marker for raised intracranial pressure.