Faculty Bibliography

A 61-year-old male presented with gross hematuria and transurethral resection of bladder tumor revealed inflammatory myofibroblastic tumor (IMT). Due to extent of disease leading to ureteral obstruction and hydronephrosis, radical cystectomy (RC) with ileal conduit urinary diversion was performed. Five months after RC, the patient presented with decreased urine output. Exploratory laparotomy revealed mass in right colon and right hemicolectomy revealed metastatic IMT to the bowel and pericolonic fat. To our knowledge, this is the first report of primary IMT of the bladder metastasizing to other organs.

OBJECTIVE:To investigate the effectiveness of combination treatment of vascular targeted photodynamic therapy and anti-cytotoxic T-lymphocyte-associated antigen 4 immunotherapy in a mouse model of urothelial carcinoma. METHODS:We used C57BL/6 mice injected with murine bladder 49 cell line. Mice were randomly allocated into four treatment groups: vascular targeted photodynamic therapy only, anti-cytotoxic T-lymphocyte-associated antigen 4 only, combination therapy and control. We carried out three separate experiments that used distinct cohorts of mice: tumor growth and development of lung metastases monitored with bioluminescent imaging (n = 91); survival evaluated with Kaplan-Meier curves (n = 111); and tumor cell population studied with flow cytometry (n = 20). In a fourth experiment, we re-challenged tumors in previously treated mice and compared tumor growth with that of naïve mice. RESULTS:Combination therapy provided significant benefits over the other three treatment groups: prolonged survival (P < 0.0001), lower tumor signal (P < 0.0001) and decreased lung signal uptake (P ≤ 0.002). We also observed that mice previously treated with vascular targeted photodynamic therapy only or combination therapy did not present tumor growth after re-challenged tumors. CONCLUSIONS:Combination of vascular targeted photodynamic therapy with anti-cytotoxic T-lymphocyte-associated antigen 4 is an effective therapy in a urothelial carcinoma syngeneic mouse model. The present results suggest this therapy as a potential treatment option for both bladder and upper tract tumors in future clinical trials.

PURPOSE/OBJECTIVE:While a definitive cure can be achieved by radical cystectomy and pelvic lymph node dissection in select patients with regional lymphadenopathy, the benefit remains uncertain in patients who present with non-regional metastases. We analyzed the survival outcomes of post-chemotherapy retroperitoneal lymph node dissection. MATERIALS AND METHODS/METHODS:We reviewed our institutional database and identified 13 patients with radiographically evident or biopsy proven retroperitoneal nodal metastases with a significant response to chemotherapy. These patients underwent consolidative surgery with concomitant or delayed retroperitoneal lymph node dissection. The primary endpoints were progression-free survival and disease-specific survival from the time of retroperitoneal lymph node dissection. RESULTS:All patients had primary urothelial cell carcinoma. Twelve patients underwent concomitant radical cystectomy, pelvic and retroperitoneal lymph node dissection. Seven patients (54%) had residual disease in the retroperitoneum and the median number of retroperitoneal nodes containing metastases was 4 (IQR 2-6). Six (86%) developed disease recurrences within 2 years of surgery and 5 (71%) died of cancer. Of the 6 patients without residual disease in the retroperitoneum, 2 (33%) developed recurrences and died of disease progression. The 2-year disease-specific survival was worse for patients with residual disease in the retroperitoneum than those without residual retroperitoneal disease (34%, 95% CI 5-68 vs 50%, 95% CI 6-85). CONCLUSIONS:The presence of retroperitoneal nodal metastases at post-chemotherapy retroperitoneal lymph node dissection is a poor prognosticator. Consolidative surgery with retroperitoneal lymph node dissection provides important prognostic information and may be therapeutic in a very small subset of these patients.

BACKGROUND:Treatment choice for muscle invasive bladder cancer continues to be radical cystectomy. However, radical cystectomy carries a relatively high risk of morbidity and mortality compared with other urological procedures. OBJECTIVE:To compare surgical complications following radical cystectomy in septuagenarians and octogenarians. DESIGN, SETTING, AND PARTICIPANTS:The National Surgical Quality Improvement Program database (2009-2013) was used to identify patients who were 70 yr and older and underwent radical cystectomy. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS:The data were analyzed for demographics and comorbidities, and compared for complications, including pulmonary, thromboembolic, wound, and cardiac complications. Patients who were 70-79 yr of age were compared with those 80 yr and older. Univariate and multivariate analyses were completed. RESULTS AND LIMITATIONS:A total of 1710 patients aged ≥70 yr met our inclusion criteria. Of them, 28.8% (n=493) were 80 yr and older, while 71.2% (n=1217) were between 70 and 79 yr old. Operative time (338.4 vs 307.2min, p=0.0001) and the length of stay (11.9 vs 10.4 d, p=0.0016) were higher in the octogenarian group. The intra- and postoperative transfusion rates, reoperative rates, wound dehiscence rates, and pneumonia, sepsis, and myocardial infarction rates were similar between the two groups. The wound infection rate (7.3% vs 4.1%, p=0.01) was higher in the septuagenarians and mortality rate (4.3% vs 2.3%, p=0.04) was higher in the octogenarian group. CONCLUSIONS:Radical cystectomy can safely be performed in octogenarians without increased cardiac, pulmonary, and thromboembolic complications when compared with septuagenarians. These patients need to be counseled that the mortality rate is slightly higher compared with that in septuagenarians. Chronological age alone should not be used to decide on offering radical cystectomy. PATIENT SUMMARY:We looked at complications following radical cystectomy in patients aged 80 yr and older. We found that there was no significant difference for wound, cardiac, or pulmonary complications, but there was an increased risk of mortality in this age group.