Boari flap urinary tract reconstruction for rectosigmoid cancer with ureteral invasion: Report of a case

Introduction: The Boari flap technique is a unique urinary tract reconstruction procedure performed after resection of the urinary tract. However, few previous reports have described the application of this technique to gastrointestinal cancer. Moreover, we have not found any papers describing the long-term prognosis. We report a case of right ureteral tract resection followed by Boari flap reconstruction for rectosigmoid carcinoma, with survival for 108 months without any urological complications. Case presentation: A woman in her 50s was diagnosed with rectosigmoid caner by local physician and referred to our institution. Computed tomography revealed right hydronephrosis due to rectosigmoid cancer invasion at the lower two-thirds of the right ureter. During laparotomy, massive lymphatic infiltration from the primary lesion to right ureter was observed. After primary tumor resection with lower ureter excision, the Boari flap procedure was performed to reconstruct the ureteral deficit. Postoperative course was uneventful, and she was discharged on postoperative day 20. The patient has been followed every 4 months for 9 years with no recurrence or unpleasant symptoms. Discussion: This technique is usually performed to manage specific conditions such as ureteral stenosis caused by ureteral calculi, retroperitoneal fibrosis, and gynecological disorders. This procedure should be reconsidered as a possible option for gastrointestinal malignant cases instead of nephrostomy or cutaneous ureterostomy, given the low rate of complications and high patient satisfaction. Conclusion: The Boari flap technique is particularly useful for bridging between the ureter and bladder in cases of colorectal malignancy with combined resection of the lower urinary tract.

Characteristics of Enterovesical Fistula Patients Visiting the Urology Department of Dr. Hasan Sadikin General Hospital Bandung, Indonesia, from 2015 to 2019

Enterovesical fistula (EVF) represents an abnormal channel between the intestine and the bladder. The EVF is a complication of inflammatory or neoplastic diseases and injuries. Diagnosis of EVF can be challenging and often delayed up to several months after the onset of the symptoms. This study aimed to determine the characteristics of patients with enterovesical fistula visiting Dr. Hasan Sadikin General Hospital Bandung, Indonesia. This retrospective descriptive study used the medical records of EVF patients treated in the urology department of Dr. Hasan Sadikin General Hospital from 2015 to 2019 as the secondary data to be analyzed. A total of 58 patients with EVF were enrolled in this study. By gender, that more than half of the patients were male patients (n=30, 51.7%) and 45% of patients were between 41 and 50 years old. The most common symptoms of EVF were pneumaturia and fecaluria which were seen in 30 (51.7%) and 20 (34.5%) patients, respectively. Twenty-nine (50%) patients experienced malnutrition and 18 (31.1%) patients had diabetes mellitus as a comorbid. The most common type of fistula was rectovesical fistula (n=45, 77.6%) and 26 (66.6%) patients suffered from rectosigmoid cancer and malignancy (68.95) had become the most predominant etiology. Escherichia coli was found in 42 (72.4%) urine cultures collected from the patients and cystoscopy with fistula biopsy was found in 43.1% of cases, followed by fistula repair (29.3%) and urethral catheter drainage (15.5%). Hence, malignancy and rectosigmoid cancer become the most common etiology of EVF while cystoscopy with fistula biopsy is the most frequently performed procedure.

Treatment and survival outcomes for Medicaid patients with pancreatic, colon-rectosigmoid, and liver cancers at a national comprehensive cancer center.

e18524 Background: Treatment and survival disparities faced by Medicaid patients are documented for pancreatic, colon-rectosigmoid, and liver cancers at a national level. Studies show these disparities persist at academic medical centers. We assessed Medicaid treatment and survival outcomes among University of Wisconsin-Health (UWH) pancreatic, colon-rectosigmoid, and liver cancer patients to determine whether national trends persisted at this academic medical center. Methods: We included UWH registry data for 1567 pancreatic, 2313 colon-rectosigmoid, and 1027 liver cancer patients ages 18+ from 2004-2016. We performed multivariable logistic regression to estimate odds ratios (ORs) to assess insurance disparities in intended resection and Cox Proportional regression to estimate hazard ratios (HRs) to assess all-cause mortality disparities for each cancer, adjusting for age, sex, race/ethnicity, BMI, comorbidity, stage, rurality, and insurance. Results: Median overall survival was 6.5 months (range 0.1-147.5) for pancreatic, 12.8 months (0.1-167.5) for colon-rectosigmoid, and 12.5 months (0.1-168.7) for liver cancer patients. 3% of pancreatic, 5% of colon-rectosigmoid, and 9% of liver cancer patients had Medicaid Insurance. Medicaid patients were less likely to be older and non-Hispanic White than private insurance (private) patients for each cancer. Medicaid patients were diagnosed with more distant disease for colon-rectosigmoid and liver cancers and less distant disease for pancreatic cancer. Medicaid patients were less likely to receive surgery vs private patients for pancreatic (OR 0.41, 95% CI 0.16-1.08) and liver (OR 0.62, 0.26-1.49) cancers, though confidence intervals were wide. Insurance was not associated with surgery in colon-rectosigmoid cancer patients (OR 0.97, 0.48-1.97). Medicaid patients had a higher risk of death vs private patients for colon rectosigmoid cancer (HR 1.50, 1.12-2.01). Risk of death was modestly elevated for Medicaid vs private patients for pancreatic (HR 1.35, 0.97-1.87) but not liver (HR 1.07, 0.77-1.48) cancer. Conclusions: Medicaid pancreatic and liver cancer patients may be less likely to receive surgery than private patients in our one center study. Results suggested that Medicaid pancreatic and colon-rectosigmoid cancer patients may have a slightly elevated risk of death vs private patients, though this needs confirmation in larger samples. Future studies should explore at which local, state, and regional levels Medicaid pancreatic, colon-rectosigmoid, and liver cancer patients experience treatment and survival disparities vs private insurance patients. These studies, combined with Medicaid expansion studies, can guide healthcare leaders and policy makers to design context-appropriate interventions to reduce insurance-related disparities in cancer treatment and outcomes.

Does the Endoscopic Surgical Skill Qualification System improve patients’ outcome following laparoscopic surgery for colon cancer? A multicentre, retrospective analysis with propensity score matching

Background This study aimed to investigate the short-term and oncological impact of the Endoscopic Surgical Skill Qualification System (ESSQS) by the Japan Society for Endoscopic Surgery on the operator performing laparoscopic surgery for colon cancer. Methods This retrospective cohort study was based on medical records from a multicentre database. A total of 417 patients diagnosed with stage II/III colon and rectosigmoid cancer treated with curative resection were divided into two groups according to whether they were operated on by qualified surgeons (Q group, n=352) or not (NQ group, n=65). Through strict propensity score matching, 98 cases (49 in each group) were assessed. Results Operative time was significantly longer in the NQ group than in the Q group (199 vs. 168 min, p=0.029). The amount of blood loss, post-operative complications, and duration of hospitalisation were similar between both groups. No mortality was observed. One conversion case was seen in the NQ group. The 3-year recurrence-free survival rate was 86.6% in the NQ group and 88.2% in the Q group, which was not statistically significant (log-rank p=0.966). Conclusion Direct operation by ESSQS-qualified surgeons contributed to a shortened operation time. Under an organised educational environment, almost equivalent safety and oncological outcomes are expected regardless of the surgeon’s qualifications.

Does the Endoscopic Surgical Skill Qualification System improve patients’ outcome following laparoscopic surgery for colon cancer? A multicentre, retrospective analysis with propensity score matching.

Purpose: This study aimed to investigate the short-term and oncological impact of the Endoscopic Surgical Skill Qualification System (ESSQS) by the Japan Society for Endoscopic Surgery on the operator performing laparoscopic surgery for colon cancer. Methods: This retrospective cohort study was based on medical records from a multicentre database. A total of 417 patients diagnosed with stage II/III colon and rectosigmoid cancer treated with curative resection were divided into two groups according to whether they were operated on by qualified surgeons (Q group, n=352) or not (NQ group, n=65). Through strict propensity score matching, 98 cases (49 in each group) were assessed. Results: Operative time was significantly longer in the NQ group than in the Q group (199 vs. 168 min, p=0.029). The amount of blood loss, postoperative complications, and duration of hospitalisation were similar between both groups. No mortality was observed. One conversion case was seen in the NQ group. The 3-year recurrence-free survival rate was 86.6% in the NQ group and 88.2% in the Q group, which was not statistically significant (log-rank p=0.966). Conclusion: Direct operation by ESSQS-qualified surgeons contributed to a shortened operation time. Under an organized educational environment, almost equivalent safety and oncological outcomes are expected regardless of the surgeon’s qualifications.