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Concept
Transurethral resection of the prostate
Summary
Transurethral resection of the prostate (commonly known as a TURP, plural TURPs, and rarely as a transurethral prostatic resection, TUPR) is a urological operation. It is used to treat benign prostatic hyperplasia (BPH). As the name indicates, it is performed by visualising the prostate through the urethra and removing tissue by electrocautery or sharp dissection. It has been the standard treatment for BPH for many years, but recently alternative, minimally invasive techniques have become available. This procedure is done with spinal or general anaesthetic. A triple lumen catheter is inserted through the urethra to irrigate and drain the bladder after the surgical procedure is complete.The outcome is considered excellent for 80–90% of BPH patients. The procedure carries minimal risk for erectile dysfunction, moderate risk for bleeding, and a large risk for retrograde ejaculation.
BPH is normally initially treated medically through alpha antagonists such as tamsulosin, or 5-alpha-reductase inhibitors such as finasteride and dutasteride. If medical treatment does not reduce a patient's urinary symptoms, a TURP may be considered following a careful examination of the prostate or bladder through a cystoscope. If TURP is contraindicated, a urologist may consider a simple prostatectomy, in and out catheters, or a supra-pubic catheter to help a patient void urine effectively. As the medical management of BPH improves, the number of TURPs have been decreasing.
Traditionally, a cystoscope (a "resectoscope") has been used to perform TURP. The scope is passed through the urethra to the prostate where surrounding prostate tissue can then be excised. There are two types of modalities:
Monopolar TURP: A monopolar device utilizing a wire loop with electric current flowing in one direction (thus monopolar) can be used to excise tissue via the resectoscope. A grounding ESU pad and irrigation by a non conducting fluid is required to prevent this current from disturbing surrounding tissues.
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