Which type of surgery is indicated for acute urinary retention?

Acute urinary retention is a condition where an individual is unable to urinate despite having a full bladder. Among the choices provided, a prostatectomy is the procedure that is most directly related to the management of acute urinary retention, particularly in men. This condition can commonly occur due to an enlarged prostate, which can obstruct the urethra and impede the normal flow of urine.

A prostatectomy involves the surgical removal of all or part of the prostate gland, which can alleviate this obstruction, thus allowing normal urination to resume. This makes it a relevant surgical intervention for addressing acute urinary retention stemming from prostate enlargement or other prostate-related issues.

In contrast, open-heart surgery, appendectomy, and cholecystectomy are unrelated to urinary retention, as they involve surgeries on the heart, appendix, and gallbladder, respectively. These procedures do not address the underlying causes of urinary retention and would not help in relieving this specific condition.