9 research outputs found

    Salvage cystectomy after failure of interstitial radiotherapy and external beam radiotherapy for bladder cancer

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    OBJECTIVE: To evaluate the long-term results of salvage cystectomy after interstitial radiotherapy (IRT) and external beam radiotherapy (EBRT) for transitional cell carcinoma, and to assess the morbidity and functional results of the different urinary diversions used. PATIENTS AND METHODS: The records of 27 patients treated with salvage cystectomy in one institution between 1988 and 2003 were retrospectively analysed. RESULTS: Salvage cystectomy was used after failure of IRT in 14 or EBRT in 13 patients, with a 3-and 5-year survival probability of 46% (95% confidence interval 26-65) and 33 (11-54)%. The 5-year overall survival after cystectomy was 54% after IRT and 14% after EBRT (P = 0.12). Tumour category, response to radiation, American Society of Anesthesiology score, and complete tumour resection had a significant influence on survival. Five of seven patients with incomplete resection died because of local disease, with a median survival of 5 months. There was clinical understaging after radiotherapy in 41% of patients. Nine patients had an orthotopic neobladder, with complete day- and night-time continence in eight and four, respectively. All patients but one had good voiding function. There were early complications in two and late complications in six patients (for Bricker, seven of 14 and none; for Indiana, none of four and two of four). The duration of hospitalization was not influenced by the type of diversion. Erectile function was maintained in four of six patients after a sexuality-preserving cystectomy and neobladder. CONCLUSIONS: Salvage cystectomy can be performed with acceptable morbidity using any type of urinary diversion. Understaging after radiotherapy is common, but preoperative selection needs improving. A very significant factor for an adverse outcome and death from local tumour recurrence was incomplete resection, suggesting that salvage cystectomy should only be attempted if complete resection is probable

    Small cell carcinoma of bladder: A single-center prospective study of 25 cases treated in analogy to small cell lung cancer

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    Objectives. To evaluate the feasibility and efficacy of a therapeutic algorithm for the management of small cell carcinoma of the bladder derived from the treatment of small cell lung cancer. Methods. During a 10-year period, 25 patients (23 men and 2 women; median age 64 years, with 8 [32%] older than 75 years) with small cell carcinoma of the bladder were defined as having limited disease (LD) or extensive disease (ED) in analogy to the classification of small cell lung cancer. Patients with LD were eligible for chemotherapy and sequential radiotherapy. Patients unfit for chemotherapy were offered complete transurethral resection and radiotherapy or cystectomy for large symptomatic tumors. Patients with ED were offered palliative chemotherapy. Results. Of the 25 patients, 17 (68%) had LD and 8 (32%) ED. Without regard to stage, the median survival of those receiving chemotherapy was 15 months versus 4 months for those who did not. The median survival for those with LD was 12 months versus 5 months for those with ED. Nine patients (52.9%) with LD could not undergo chemoradiotherapy because of comorbidity and reduced performance (n = 7), progression (n = 1), or drug-related death (n = 1). Five of those patients underwent TUR and radiotherapy and two cystectomy. Conclusions. The prognosis of small cell carcinoma of the bladder is poor. This treatment algorithm offers bladder sparing for most patients, with few long-term remissions in patients with small, confined tumors. None of the patients died of locoregional tumor progression, supporting that cystectomy is not the treatment of choice for those with LD. With a significant proportion of elderly patients with comorbidities, chemoradiotherapy was not feasible in more than one half of the patients with LD

    Urinary Diversions after Cystectomy: The Association of Clinical Factors, Complications and Functional Results of Four Different Diversions

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    Purpose: We present a single institute experience of the four most widely used diversions after cystectomy in 281 patients, with an evaluation of the association between clinical factors, complication rates, functional results, and metabolic complications. Materials and methods: Between 1990 and 2005, 281 consecutive cystectomies were performed at our institute. Four different diversions were offered: an ileal conduit according to Bricker (IC; 118 patients), an Indiana pouch (IP; 51 patients), and orthotopic diversions after cystectomy/neobladder (N; 62 patients), or sexuality-preserving cystectomy and neobladder (SPCN; 50 patients). Results: Forty-four percent developed early complications: IC 48%, IP 43%, N 42%, and SPCN 38%. High ASA score was the only variable significantly associated with early major complications (ASA 1 vs. 3: HR, 0.32; 95%CI, 0.14-0.72). Late complication rate was 51% with fewer complications in the IC group, IC 39%, IP 63%, N 59%, and SPCN 60% (HR, 0.32; 95%CI, 0.14-0.72), which was explained by fewer uncomplicated urinary tract infections (one third of all late complications) in the IC group. There were no differences in experienced late major complications. We found no significant association between tumour stage, ASA, age, preoperative radiotherapy, gender, and diversion-related complication rates. Complete daytime and nighttime continence, respectively, was achieved in 96% and 73% after IP, 90% and 67% after neobladder, and 96% and 67% after SPCN. Metabolic changes were found in 24% of the patients: 21% after IC, 26% after IP, and 28% after orthotopic diversion (neobladder and SPCN combined); low vitamin B12 was measured in 23%, 15%, and 15% respectively. Conclusions: Cystectomy with any subsequent diversion remains a procedure with considerable morbidity. High ASA score was associated with more early complications. Orthotopic diversions provide good functional results, but at the cost of more late complications compared with ileal conduits. We found no evidence that age, ASA score, positive lymph nodes, extravesical tumour growth, or previous radiotherapy were contraindications per se for any diversion

    Value of SPECT/CT for detection and anatomic localization of sentinel lymph nodes before laparoscopic sentinel node lymphadenectomy in prostate carcinoma

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    Laparoscopic evaluation of sentinel nodes is useful for staging prostate cancer, but preoperative localization of deep abdominal sentinel nodes with planar lymphoscintigraphy is difficult. We evaluated the value of SPECT/CT for detecting and localizing sentinel nodes in prostate cancer. METHODS: (99m)Tc-nanocolloid was injected peri- and intratumorally, guided by transrectal ultrasonography, in 46 patients with prostate cancer of intermediate prognosis. Patients underwent planar imaging after 15 min and 2 h, SPECT/CT after 2 h, and laparoscopic sentinel node lymphadenectomy on the same day. SPECT was fused with CT and analyzed using 2-dimensional orthogonal slicing and 3-dimensional volume rendering. We evaluated the number of extra sentinel nodes found by SPECT/CT, the number of sentinel nodes found by SPECT/CT outside the area of the extended pelvic lymphadenectomy, and the anatomic information provided by SPECT/CT. Furthermore, we classified the value of the additional SPECT/CT images into 3 categories (no advantage, presumable advantage, and definite advantage) according to the extra anatomic information given and whether additional sentinel nodes were found by SPECT/CT. RESULTS: The patients had a mean age of 64 y (range, 53-74 y) and received a mean injected dose of 218 MBq (range, 147-286 MBq). The sentinel node visualization rate was 91% (42 patients) for planar imaging and 98% (45 patients) for SPECT/CT. In 29 of the 46 patients (63%), SPECT/CT revealed additional sentinel nodes (especially lymph nodes near the injection area) not seen on planar imaging. In 7 patients, those additional sentinel nodes were positive for metastasis (being the exclusive metastatic sentinel node in 4 patients). Overall, 15 patients (33%) had positive sentinel nodes. Sentinel nodes outside the area of extended pelvic lymphadenectomy were found in 16 patients (35%), whereas in 56% of these patients those nodes were not seen on planar imaging. Performing SPECT/CT had no advantage in 13% of the patients, a presumable advantage in 24%, and a definite advantage in 63%. Urologic surgeons used the SPECT/CT images to guide their trocar insertion sites and sentinel node finding with the probe. CONCLUSION: More sentinel nodes can be detected with SPECT/CT than with planar imaging alone. In comparison with planar imaging, SPECT/CT especially reveals extra sentinel nodes near the prostate and outside the area of the extended pelvic lymphadenectomy. Furthermore, the modality provides useful additional information about the anatomic location of sentinel nodes within and outside the pelvic area, leading to improved intraoperative sentinel node identificatio

    Diagnostic Laparoscopy and Abdominal Cytology Reliably Detect Peritoneal Metastases in Patients with Urachal Adenocarcinoma

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    Background Urachal adenocarcinoma (UrAC) is a rare malignancy that can cause peritoneal metastases (PM). Analogous to other enteric malignancies, selected patients with limited PM of UrAC can be treated by cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC). Objective The aim of this study was to address the value of diagnostic laparoscopy (DLS) and abdominal cytology (ACyt) for the detection and evaluation of the extent of PM in patients with UrAC. Methods A consecutive series of cN0M0 patients with UrAC who underwent DLS with or without ACyt at a tertiary referral center between 2000 and 2018 was assessed. Patients were staged with computed tomography (CT) and/or positron emission tomography (PET)/CT or bone scan. DLS was performed to rule out PM and to evaluate the extent and resectability of PM if seen on imaging. Sensitivity and specificity values were calculated for imaging, DLS, ACyt, and the combination of DLS and ACyt. Results Thirty-two patients with UrAC underwent DLS. ACyt was obtained in 19 patients. Four patients had suspicion of PM on imaging. In the 28 patients who were PM-negative on imaging, DLS and ACyt revealed PM in 6 (21%) patients, of whom 5 had macroscopically visible PM; 1 patient had positive ACyt without visible PM. Sensitivity of combined DLS/ACyt for the detection of PM was 91%, with a specificity of 100%, whereas sensitivity of imaging was 36%. DLS correctly predicted resectability in all patients. Conclusion Combined DLS/ACyt proved an effective tool to detect occult PM and to evaluate the extent of PM to select UrAC patients for possible treatment with CRS/HIPEC

    Long-term survival after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) for patients with peritoneal metastases of urachal cancer

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    Introduction: Urachal adenocarcinoma (UrAC) is a rare malignancy arising from persistent urachal remnants, which can cause peritoneal metastases (PM). Currently, patients with this stage UrAC are considered beyond cure. Our objective is to report long-term oncological outcome after cytoreductive surgery (CRS) plus hyperthermic intraperitoneal chemotherapy (HIPEC) for patients with PM of urachal adenocarcinoma (UrAC). Materials and methods: We identified 55 patients with UrAC treated at our hospital between 1994 and 2017. Patients were staged with CT, bone scintigraphy and/or PET/CT. From 2001 on, cN0M0 patients underwent staging laparoscopy. Ten patients had PM and were treated with CRS/HIPEC; 35 showed no metastases and underwent local treatment; 10 had distant metastases and received palliative chemotherapy. Disease-specific survival (DSS) rates were estimated using the Kaplan-Meier method and log-rank tests. Postoperative complications represent a secondary outcome. Results: The median follow-up was 96.8 months. Of the CRS/HIPEC patients, 5 (50%) developed a recurrence; 4 (40%) died of disease. The 2-yr and 5-yr DSS after CRS/HIPEC were 66.7% and 55.6%, respectively. DSS of the CRS/HIPEC patients did not significantly differ from DSS of patients without metastases who only underwent curative local treatment and was superior to patients with distant metastases (P = 0.012). The overall complication rate after CRS/HIPEC was 60%. Major complications (Clavien 3) constituted 20%. The study is limited by its retrospective nature and the small sample size. Conclusion: CRS/HIPEC demonstrates satisfactory long-term oncological outcome for patients with PM of UrAC. It may be offered as a potentially curative treatment option for this group of patients

    Analytical Methods for Virus Detection in Water and Food

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