Omitting the Second Bladder Resection: A 3-Year Prospective Pilot Study

Background The effect of total intravenous anesthesia (TIVA) and inhalation anesthesia (IA) on the prognosis of breast cancer patients has been controversial. The study is aimed at exploring the effects of different anesthesia methods on the postoperative prognosis of breast cancer patients. Methods Literature retrieval was conducted in PubMed, EMBASE, MEDLINE, Embase, CENTRAL, and CNKI databases. The literature topic was to compare the effects of TIVA and IA on the prognosis of patients undergoing breast cancer resection. Two researchers extracted data from the literature independently. This study included randomized controlled trials that evaluated for risk of bias according to the “Risk assessment Tool for Bias in Randomized Trials” in the Cochrane Manual. The Newcastle-Ottawa Scale (NOS) was used to assess the risk of bias in observational studies. The chi-square test was used for the heterogeneity test. Publication bias was assessed using funnel plots and Egger's test. If heterogeneity existed between literature, subgroup analysis and sensitivity analysis were used to explore the source of heterogeneity. Sensitivity analysis was performed by excluding low-quality and different-effect models. Data were statistically analyzed using the Cochrane software RevMan 5.3. Hazard ratio (HR) and 95% confidence interval (CI) were used for statistical description. Results Seven literatures were selected for meta-analysis. There were 9781 patients, 3736 (38.20%) receiving TIVA and 6045 (61.80%) receiving inhalation anesthesia. There was no significant difference in overall survival (OS) between TIVA and IA breast cancer patients (HR = 1.05, 95% CI (0.91, 1.22), Z = 0.70, P = 0.49). There was no difference in the literature (χ2 = 6.82, P = 0.34, I2 = 12%), and there was no obvious publication bias. There was no significant difference in recurrence-free survival (RFS) between TIVA and IA patients (HR = 0.95, 95% CI (0.79, 1.13), Z = 0.61, P = 0.54). There was no heterogeneity in the literature (χ2 = 5.23, P = 0.52, I2 = 0%), and there was no significant publication bias. Conclusion There is no significant difference in OS and RFS between TIVA and IA patients during breast cancer resection. The prognostic effects of TIVA and IA were similar.

To evaluate peri- and postoperative morbidity, and long-term oncologic and functional results of our laparoscopic radical cystectomy (LRC) technique, comparing it with our standard open approach. Between 2000 and 2010, 54 patients underwent LRC for urothelial cell carcinoma of the bladder in two academic hospitals. The procedures were performed by two surgeons. Patients were matched 1:1 with patients who underwent open RC in the same years by the same surgical team. Differences in peri- and postoperative complications across the two groups were assessed using Wilcoxon's rank-sum or χ (2) test. Kaplan-Meier curves, log-rank tests and Cox regression models were constructed to assess differences in recurrence-free survival on long-term follow-up between the two groups. Laparoscopic radical cystectomy was significantly associated with lower blood loss (p < 0.0001) and less frequent postoperative ileus (p = 0.03). Regarding more serious postoperative complications, no difference was found across the two cohorts. Median oncologic follow-up was 42 months (IQR 12-72 months) in the LRC cohort and 18 months (IQR 8-27 months) in patients undergoing open radical cystectomy (ORC). No statistically significant difference in recurrence-free survival was observed between the two groups (log rank p = 0.677). On univariate Cox regression, the surgical approach used was not significantly associated with risk of recurrence. We found that LRC is safe and associated with lower blood loss and decreased postoperative ileus compared with ORC. Moreover, on long-term oncologic follow-up, LRC appeared non-inferior to ORC with no significant difference in recurrence-free survival. Nonetheless, these results must be confirmed by larger series and stronger long-term follow-up data are needed.

Routine completion axillary lymph node dissection for positive sentinel nodes in patients undergoing mastectomy is not associated with improved local control

The prognostic role of pathologic invasive component size, excluding lepidic growth, in stage I lung adenocarcinoma

ObjectiveTo assess the distribution of molecular classes and their impact on the risk of recurrence in endometrial cancer patients with lymph node metastasis at the time of primary surgery.MethodsEndometrial cancer...

PurposeThe aim of this study is to evaluate the safety of fertility-sparing surgery as the treatment for patients with primary mucinous epithelial ovarian cancer.Materials and MethodsA retrospective study of patients with mucinous ovarian cancer between 1991 and 2010 was performed. The demographics and survival outcomes were compared between patients who underwent fertility-sparing surgery and those who underwent radical surgery.ResultsA total of 110 patients underwent primary surgery. At the time of surgery, tumors appeared to be grossly confined to the ovaries in 90 patients, and evidence of metastasis was definite in 20 patients. Of the 90 patients with tumors that appeared to be grossly confined to the ovaries at surgical exploration, 35 (38.9%) underwent fertility-sparing surgery. The Kaplan- Meier curve and the log rank test showed no difference in either recurrence-free survival (p=0.792) or disease-specific survival (p=0.706) between the two groups. Furthermore, there was no significant difference in recurrence-free survival (p=0.126) or disease-specific survival (p=0.377) between the two groups, even when the analysis was limited to women below the age of 40. In a multivariate Cox model, fertility-sparing surgery had no effect on either recurrence-free survival (recurrence hazard ratio [HR], 1.20; 95% confidence interval [CI], 0.25 to 5.71) or disease-specific survival (death HR, 0.88; 95% CI, 0.17 to 4.60).ConclusionFertility-sparing surgery in primary mucinous cancer grossly confined to the ovaries may be a safe option and one not associated with an increase in recurrence or mortality.

PD33-07 PARTIAL VS. COMPLETE RESPONSE TO NEOADJUVANT CHEMOTHERAPY IN MUSCLE-INVASIVE BLADDER CANCER PATIENTS: A COMPARISON OF POST-CYSTECTOMY OUTCOMES

This study aimed to explore the impact of serum tumor markers on survival for patients with pancreatic cancer (PC) who received initial systemic therapy (IST) followed by surgery. Between April 2010 and July 2018, 285 consecutive patients who underwent curative intent surgery for PC were enrolled in the study. The relation between carbohydrate antigen 19-9 and duke pancreatic monoclonal antigen type 2 (DUPAN-2) after IST was analyzed as well as PC prognosis. The study identified 95 patients who underwent systemic chemotherapy with or without radiotherapy as IST from the our prospectively maintained database at the Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan. Survival analysis of the 95 patients showed significant differences in recurrence-free survival (RFS) and overall survival (OS) between the DUPAN-2-normalized (D-normalized) and DUPAN-2-unnormalized (D-unnormalized) groups (median RFS, 24.1 vs. 14.2months, p = 0.003; median OS, not reached vs. 29.6months, p = 0.003). In addition, a tendency of differences in survival was observed between the D-normalized and D-unnormalized groups with borderline resectable PC (RFS, 20.1 vs. 14.2months, p = 0.052; OS, not reached vs. 29.6months, p = 0.081), and significant differences in survival were observed between the D-normalized and D-unnormalized groups with unresectable PC (RFS, 25.1 vs. 12.1months, p < 0.001; OS, not reached vs. 11.4months, p < 0.001). Furthermore, multivariate analysis demonstrated that normalized DUPAN-2 independently predicted survival of resected PC [RFS: hazard ratio (HR) 2.180; 95% confidence interval (CI) 1.16-4.08, p = 0.015; OS: HR 2.806; 95% CI 1.19-6.62, p = 0.018]. During IST, DUPAN-2 normalization may potentially predict prolonged survival for PC patients and optimal timing for conversion surgery in IST.

Clinical Impact of Cryoballoon Ablation for Paroxysmal Atrial Fibrillation in Patients With Enlarged Left Atrium

This study compared the efficacy and safety of intravenous chemotherapy combined with intravesical chemotherapy versus intravesical chemotherapy alone for high-risk nonmuscle invasive bladder cancer (HRNMIBC) patients after transurethral resection of the bladder tumor (TURBT) surgery. A retrospective analysis was performed on 349 HRNMIBC cases admitted to TangDu hospital between January 2014 and June 2019. After TURBT, 262 patients received intravesical chemotherapy alone, whereas 87 patients underwent intravesical chemotherapy in combination with intravenous chemotherapy. The recurrence rate and progression rate were assessed by Chi-square test, the prognostic factors for tumor recurrence were predicted by univariable and multivariable Cox hazards analyses, recurrence-free survival (RFS) and progression-free survival (PFS) were calculated using the Kaplan-Meier method. In this study, the recurrence rate was 24.7% (19/77) in the intravenous chemotherapy combined group and 41.6% (102/245) in the intravesical chemotherapy group, while the progression rate was 6.5% (5/77) and 14.3% (35/245) in the two groups respectively. The two groups differed significantly in recurrence rate (p = 0.007) while the progression rate did not show a significant difference (p = 0.071). Multivariable analyses revealed that additional intravenous chemotherapy treatment was an independent prognostic factor for tumor recurrence in the cohort (hazard ratio [HR], 0.495, 95% confidence interval [CI], 0.275-0.892, p = 0.019). Kaplan-Meier curves showed significant differences in RFS and PFS between the two groups, with a log-rank P value of p < 0.005 and p = 0.045, respectively. Grade 3/4 toxicity was reported in 2 of 77 patients in the intravenous chemotherapy combined group, including nausea/vomiting 1.3% (1/77) and hypoleukemia 1.3% (1/77). Intravenous chemotherapy of gemcitabine and cisplatin combined with intravesical chemotherapy after TURBT can effectively reduce the postoperative recurrence rate, most toxicities were minor and reversible, and it may be considered as a new choice for HRNMIBC patients.

Prognostic Implications of Treatment Delays for Patients with Non–muscle-invasive Bladder Cancer

In 1984, the German Breast Cancer Study Group (GBSG) started a multicenter randomized clinical trial to compare the effectiveness of three versus six cycles of 500 mg/m2 cyclophosphamide, 40 mg/m2 methotrexate, and 600 mg/m2 fluorouracil (CMF) on day 1 and 8 starting perioperatively with or without tamoxifen (TAM) (3 x 10 mg/d for 2 years). The aim of the trial was to compare recurrence-free and overall survival between the different treatment modalities. During 5 years, 41 institutions randomized 473 patients (3 x CMF: 145; 3 x CMF + TAM: 93; 6 x CMF 144; 6 x CMF + TAM: 91). Until March 31, 1992, median follow-up time was 56 months with 197 events for disease-free survival and 116 deaths observed. This provides a power of approximately 80% to detect a potential treatment difference corresponding to a relative risk (RR) of 0.67 for recurrence-free survival. Treatment modalities and various patient characteristics were evaluated by means of a multivariate Cox regression analysis. No significant difference in recurrence-free survival was observed with respect to hormonal therapy (RR = 0.75 TAM v no TAM; 95% confidence interval [CI], 0.54 to 1.04; P = .08) as well as duration of chemotherapy (RR = 0.90 of 6 x CMF v 3 x CMF; 95% CI, 0.67 to 1.19; P = .45). Similar results were obtained for overall survival. The multivariate analysis revealed a significant prognostic impact of the number of positive lymph nodes and the progesterone receptor level on recurrence-free survival. Compliance with chemotherapy within the range of 85% to 115% of the target dose was achieved in 94% and 78% of the patients randomized to 3 x CMF and 6 x CMF, respectively. Sufficient compliance with TAM was reported for 141 patients (93%). At this stage of follow-up, six courses of CMF are not superior to three courses with respect to recurrence-free survival.

The aim of this study was to investigate the clinical relevance of the 8th edition of the Union for International Cancer Control classification of TNM staging for ampulla of Vater carcinoma (AC). A total of 104 consecutive patients who underwent macroscopic curative resection for AC between January 2002 and September 2017 were investigated. Significant differences in recurrence-free survival (RFS) were found between T1a and T1b (p = 0.0030), but not between T1b and T2 (p = 0.9319), T2 and T3a (p = 0.0732), or T3a and T3b (p = 0.2118). The prognostic impact of the depth of duodenal invasion and pancreatic invasion, which define the T category, were evaluated. With regard to duodenal invasion, significant differences in RFS were found between the negative and submucosa classifications (p = 0.0012) and the muscularis propria and serosa classifications (p = 0.0131), but not between the submucosa and muscularis propria classifications (p = 0.6390). With regard to pancreatic invasion, significant differences in RFS were found between the negative and ≤ 0.5cm classifications (p = 0.0001), and ≤ 0.5cm and > 0.5cm classifications (p = 0.0062). A Cox proportional hazard analysis for RFS revealed that duodenal invasion (submucosa or muscularis propria/negative, hazard ratio [HR] 5.08; serosa/negative, HR 7.42), and pancreatic invasion (≤ 0.5cm/negative, HR 8.23; > 0.5cm/negative, HR 9.81) were independent prognostic factors. An alternative new T category was proposed, based on the HRs, as follows: T1, tumor limited to the ampulla of Vater or sphincter of Oddi; T2, duodenal invasion (submucosa or muscularis propria); T3, pancreatic invasion (≤ 0.5cm) or duodenal invasion (serosa); and T4, pancreatic invasion (> 0.5cm). This alternative T category can well classify each subgroup with prognostic differences. Reconsideration of the T category based on the prognostic impact of TNM factors, including the depth of duodenal and pancreatic invasion, are required in the 8th edition T category.

Impact of surgical margins on recurrence after resection of atypical lipomatous tumors: A single-center retrospective analysis.

CD44 variant 9 (CD44v9) and the heavy chain of 4F2 cell-surface antigen (CD98hc) appear important for regulation of reactive oxygen species defence and tumor growth in gastric cancer. This study examined the roles of CD44v9 and CD98hc as markers of gastric cancer recurrence, and investigated associations with energy metabolism. We applied capillary electrophoresis time-of-flight mass spectrometry to metabolome profiling of gastric cancer specimens from 103 patients who underwent resection with no residual tumor or microscopic residual tumor, and compared metabolite levels to immunohistochemical staining for CD44v9 and CD98hc. Positive expression rates were 40.7% for CD44v9 and 42.7% for CD98hc. Various tumor characteristics were significantly associated with CD44v9 expression. Five-year recurrence-free survival rate was significantly lower for CD44v9-positive tumors (39.1%) than for CD44v9-negative tumors (73.5%; P < 0.0001), but no significant differences in recurrence-free survival were seen according to CD98hc expression. Uni- and multivariate analyses identified positive CD44v9 expression as an independent predictor of poorer recurrence-free survival. Metabolome analysis of 110 metabolites found that levels of glutathione disulfide were significantly lower and reduced glutathione (GSH)/ glutathione disulfide (GSSG) ratio was significantly higher in CD44v9-positive tumors than in CD44v9-negative tumors, suggesting that CD44v9 may enhance pentose phosphate pathway flux and maintain GSH levels in cancer cells.