Sufferers whose surgical planning for robotic-assisted laparoscopic radical prostatectomy (RALP) concerned three-d (3D) digital actuality (VR) fashions expertise higher oncologic outcomes with out compromising useful outcomes, experiences a latest examine.

“In sufferers present process RALP, using 3D VR fashions for operative planning improved oncologic final result whereas sustaining useful outcomes,” mentioned the researchers, led by Joseph D. Shirk of the UCLA Division of Urology, Los Angeles, California, US.

Shirk and his group performed a multicentre, randomized, single-blind scientific trial from January 2019 to December 2020. They prospectively enrolled and randomly assigned 92 sufferers present process RALP to both an intervention group the place magnetic resonance imaging (MRI) and biopsy outcomes had been supplemented with a 3D VR mannequin or a management group present process standard preoperative planning with prostate biopsy outcomes and MRI solely.

No important distinction was noticed in useful outcomes and conventional operative metrics (p>0.05), however tendencies towards decrease optimistic margin charges within the intervention group (33 % vs 25 %) had been famous. The intervention group additionally had considerably decrease detectable postoperative prostate-specific antigen (PSA; 31 % vs 9 %; p=0.036). [J Urol 2022;208:618-625]

Notably, surgeons adjusted their operative plan based mostly on the mannequin in 32 % of sufferers within the intervention arm. Evaluating this cohort to the management group, a sturdy development was observed towards elevated bilateral nerve sparing (78 % vs 92 %). Moreover, there was a considerably decrease price of postoperative detectable PSA within the intervention subset (31 % vs 0 %; p=0.038).

improved outcomes

“For sufferers present process RALP, we recognized enhancements in key postoperative metrics that outline oncologic outcomes,” the researchers mentioned.

Higher oncologic outcomes are characterised by decrease optimistic margin charges and postoperative PSA. Sufferers with both optimistic margins or early detectable PSA are considerably extra more likely to progress to extra superior illness and wish future therapy, comparable to radiation or androgen deprivation remedy. [Eur Urol 2019;76:106-114;
World J Urol 2018;36:1803-1815]

“Whereas we didn’t see a big distinction in margin standing, the distinction famous in postoperative PSA could also be as a consequence of various levels of margin positivity,” the researchers mentioned.

“As we solely outlined margins as optimistic or adverse, the diploma of positivity might have been much less within the intervention instances, and doubtlessly not clinically important, because of the selections made after assessment of the 3D mannequin,” they added. [Eur Urol Oncol 2021;4:42-48]


These findings can markedly affect affected person care. For example, the surgeon can counsel sufferers extra instantly when it comes to projected trifecta outcomes throughout the starting stage. Such motion might end in therapy choice that agrees with affected person preferences and acceptable affected person expectations.

As well as, the 3D VR fashions enhance the surgeon’s potential to supply first-rate surgical care by addressing limitations within the present imaging and surgical planning normal of care. Lastly, sufferers might forestall present process damaging therapy for his or her prostate most cancers, comparable to adjuvant or salvage radiation and androgen deprivation remedy.

“Additional work might concentrate on the addition of different anatomical buildings and use of the 3D fashions as a coaching device,” the researchers mentioned. “Moreover, intermediate- and long-term outcomes in these sufferers must be assessed to make sure the noticed results are sturdy.”


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