MedWire News: Men treated with robot-assisted radical prostatectomy (RARP) for localized prostate cancer have fewer surgical complications than men treated with open retropubic radical prostatectomy (RRP), research findings show.
Fewer patients treated with RARP in the study required blood transfusions or experienced infectious complications or bladder neck contractures compared with those treated with RRP.
“Radical prostatectomy is associated with specific complications that can affect outcome results in patients,” explain Stefan Carlsson, from the Karolinska Hospital in Stockholm, Sweden, and colleagues.
“The incidence of Clavien IIIb–V complications was significantly lower in the RARP (3.7%) group compared with the RRP group (12.9%),” they report in the journal Urology.
The researchers assessed surgery-related complications in 1253 RARP and 485 RRP patients treated at their institution. Complications included surgical reintervention, blood transfusions, wound infections, and bladder neck contractures. The median follow-up time was 30 months in the RRP cohort and 19 months in the RRP cohort.
In all, 32.8% of the RRP group and 15.7% of the RARP group experienced some form of surgery-related complication.
Within 30 days of treatment, 23.0% of RRP patients needed blood transfusions compared with just 4.6% of RARP patients. The researchers believe this could be partially as a result of “loss of refinement in the technique of vascular control during RRP.”
In all, 2.8% of RRP patients and 1.9% of RARP patients required surgical intervention, with intra-abdominal bleeding being the most common reason for re-intervention.
The most common late postoperative complications were bladder neck contractures, experienced by 4.5% of RRP patients compared with 0.2% of RARP patients. This difference equates to a 20 times higher risk for bladder neck contracture after RRP compared with RARP.
There was a higher incidence of wound infection in the RRP group compared with the RARP group, at 5.9% of patients compared with 0.4%, respectively, giving a relative risk for infection of 12.5 for patients undergoing RRP.
The researchers believe this particular finding is of “great interest” in view of the “increasing antimicrobial resistance and urge for reduced antibiotic use worldwide.”
Carlsson et al conclude: “Our results show that RARP is a viable treatment option for patients with clinically localized prostate cancer and is associated with a low complication rate.”
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