The effect of prior prostate cancer treatment on perioperative and pathological outcomes after cystectomy.

INTRODUCTION: A comprehensive analysis on outcomes in the perioperative and pathological setting in patients with a prior diagnosis of prostate cancer has not been performed. The objective of this study is to describe the effect of prior prostate cancer treatment on perioperative and pathological outcomes after cystectomy. MATERIALS AND METHODS: This was a retrospective review of all male patients who underwent cystectomy at our institution from 01/01/2007-01/01/2020. Patients who were previously diagnosed and treated for prostate cancer were identified and outcomes were assessed. RESULTS: In 525 male patients, 132 (25.1%) had a diagnosis of prostate cancer prior to cystectomy. In the patients with a history of prostate cancer, 59 (46.2%) patients underwent prior radical prostatectomy (RP), 52 (39.4%) underwent some form of radiation therapy and the remaining 21 were managed with other modalities, including 11.4% who were on active surveillance. When comparing perioperative outcomes, there were no significant differences in outcomes. Pathological outcomes revealed that pT4 disease was more common in the RT cohort (19.2%, p = 0.05). In patients with no history of prostate cancer, 151 (40.2%) were found to have incidental prostate cancer at the time of cystectomy. Most (67.5%) patients with incidental prostate cancer had Gleason < 7 disease and only 1.3% developed metastatic prostate cancer on follow up, compared to over 10% of the patients previously treated for prostate cancer (p < 0.05). CONCLUSIONS: Patients who underwent prostate cancer treatment prior to cystectomy may be at increased risk for worse perioperative and pathologic outcomes after cystectomy.

Timing of perioperative transversus abdominis plane block at the time of radical cystectomy does not affect perioperative outcomes.

PURPOSE: The transversus abdominis plane (TAP) block has been effective in providing adequate pain control, limiting opioid use, and improving perioperative outcomes in patients undergoing major abdominal surgeries. Little is known regarding the efficacy of preoperative (pre-incisional) versus postoperative TAP block in patients who undergo cystectomy. METHODS: This is a retrospective study that reviewed all patients who underwent cystectomy between January 2011 and January 2020 at a single institution. Patients were stratified into three cohorts: preoperative TAP block, postoperative TAP block, no TAP block. A multivariable linear regression model was constructed that assessed factors associated with total morphine milligram equivalents (MME) per hospital stay. RESULTS: In 463 patients, baseline characteristics were similar. There were 66(14.3%) patients who received a perioperative TAP block, 16 (24.2%) of whom received a preoperative TAP block. There were no significant differences in baseline factors. A TAP block was associated with lower MME used per day (41.8 mg vs 53.1 mg, p = 0.009) and per hospital stay (232 mg vs 320.5 mg, p = 0.001). The median MME per hospital stay and per day was lowest in the preoperative TAP cohort (194.0 mg, p = 0.011 and 38.0 mg, p = 0.042, respectively). On multivariable analysis of a subset of patients who received a TAP block, there was no significant difference in MME use in patients who received a preoperative vs postoperative TAP block (- 84.8, p = 0.339). CONCLUSION: The use of TAP blocks was associated with lower MME use in the entire population; however, there was no difference in MME use when comparing preoperative and postoperative TAP blocks.