For patients with very large prostates (typically >80-100 grams), endoscopic approaches such as TURP, HoLEP, or PVP may be less effective or technically challenging. In these cases, simple prostatectomy, which involves the surgical removal of the entire prostatic adenoma, is the treatment of choice. Traditionally, this was performed as an open surgical procedure. However, with the advancement of minimally invasive techniques, laparoscopic and robot-assisted simple prostatectomy have emerged as viable alternatives that offer the efficacy of open surgery with reduced morbidity.
Laparoscopic Simple Prostatectomy (LSP)
LSP is a minimally invasive approach that replicates the principles of open simple prostatectomy through small abdominal incisions. The surgeon uses laparoscopic instruments to access the prostate, incise the prostatic capsule, and enucleate the adenoma. The adenoma is then removed through one of the port sites, often with the use of a morcellator. LSP has been shown to be a safe and effective procedure for large prostates, with advantages over open surgery including reduced blood loss, shorter hospital stay, and faster recovery.
Robot-Assisted Simple Prostatectomy (RASP)
RASP is a further refinement of the minimally invasive approach, utilizing the da Vinci Surgical System. The robotic platform provides the surgeon with enhanced 3D visualization, improved dexterity, and greater precision. The technical steps of RASP are similar to LSP, but the robotic instruments allow for more precise dissection and suturing. RASP has been shown to have excellent outcomes, with low complication rates and a short learning curve for surgeons already experienced in robotic surgery. It is becoming an increasingly popular option for the treatment of large BPH.
Outcomes and Considerations
Both LSP and RASP have demonstrated excellent efficacy in relieving bladder outlet obstruction in patients with large prostates, with outcomes comparable to open simple prostatectomy. The choice between these minimally invasive approaches and endoscopic enucleation techniques such as HoLEP for large glands is a subject of ongoing debate and depends on factors such as surgeon experience, available technology, and patient characteristics. However, for the largest of prostates, a simple prostatectomy, whether open, laparoscopic, or robotic, remains the most definitive treatment.