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Sökning: L773:2168 1805 OR L773:2168 1813 > Gudjonsson Sigurdur

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1.
  • Boström, Peter J., et al. (författare)
  • Clinical markers of morbidity, mortality and survival in bladder cancer patients treated with radical cystectomy : A systematic review
  • 2020
  • Ingår i: Scandinavian journal of urology. - : Taylor & Francis. - 2168-1805 .- 2168-1813. ; 54:4, s. 267-276
  • Forskningsöversikt (refereegranskat)abstract
    • Context: Radical cystectomy and pelvic lymph node dissection (RC and PLND) are an essential part of the treatment paradigm in high risk bladder cancer. However, these patients have high rates of morbidity and mortality related both to the treatment and to the disease.Objective:To provide overview of current literature about clinical markers that can be used to predict and improve BC-patient outcomes at the time of RC and PLND and to study if they are properly validated.Evidence acquisition: A systematic literature search was conducted according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) criteria between January 1990 and October 2018 to identify English written original and review articles relevant to this topic. Prospective and retrospective studies were included.Evidence synthesis: There are several risk factors identified from non-randomised trials that can be improved before surgery to reduce perioperative mortality and morbidity. These include poor nutritional status, anaemia, renal function and smoking. Preoperative nomograms have also been developed to help decision-making and to inform patients about the risks of surgery. They can be used to estimate risk of postoperative mortality after RC and PLND with accuracy varying from 70 to 86%. These nomograms are largely based on retrospective data. Likewise, nomograms developed to calculate estimates about patient's overall and cancer specific survival have the same limitations.Conclusion: Clinical markers to predict morbidity, mortality and survival in patients with bladder cancer treated with RC and PLND may help to improve patient outcomes and treatment decision-making, but available data come from small retrospective trials and have not been properly validated. Prospective, multi-centre studies are needed to implement and disseminate predictive clinical markers and nomograms such that they can be utilised in treatment decision-making in daily practice.
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2.
  • Johansson Kollberg, Petter, et al. (författare)
  • [18F]Fluorodeoxyglucose-positron emission tomography/computed tomography response evaluation can predict histological response at surgery after induction chemotherapy for oligometastatic bladder cancer
  • 2017
  • Ingår i: Scandinavian Journal of Urology. - : Medical Journals Sweden AB. - 2168-1805 .- 2168-1813. ; 51:4, s. 308-313
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: Patients with limited metastatic and locally advanced bladder cancer have a poor prognosis, and no definite treatment recommendations exist. However, long-term survival is possible for selected patients if surgery is combined with multiple courses of chemotherapy (i.e. induction chemotherapy). Patients with tumours that are insensitive to chemotherapy probably have little to gain from subsequent extensive surgery. The aim of this study was to evaluate sequential FDG-PET/CT examinations as an indicator of chemotherapy response. Materials and methods: Between 2007 and 2015, 50 patients with oligometastatic invasive bladder cancer selected for induction chemotherapy underwent two FDG-PET/CT examinations: the first before the start of chemotherapy and the second after three courses of cisplatinum-based combination chemotherapy. Responders were given up to six courses of chemotherapy. FDG-PET/CT response was correlated with histological response in excised lymph-node metastases. Results: Three patients showed progression to incurable disease during chemotherapy and another two patients did not undergo surgery, for medical reasons. Lymphadenectomy was performed in the remaining 45 patients, of whom 43 had lymph-node metastasis. FDG-PET/CT prediction of the histological nodal chemotherapy response was correct in 37 (86%) of those 43. The second FDG-PET/CT examination identified four out of nine non-responders. For response, the sensitivity, specificity, and positive and negative predictive values for FDG-PET/CT accuracy were 37 out of 37 (100%), one out of six (17%), 37 out of 42 (88%) and one out of one (100%), respectively. Conclusions: Repeated FDG-PET/CT seems to predict histological response. However, with the histological response criteria used in this study, five non-responders were not identified by the second FDG-PET/CT investigation.
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3.
  • Kjölhede, Henrik, et al. (författare)
  • Simplified intraoperative sentinel-node detection performed by the urologist accurately determines lymph-node stage in prostate cancer
  • 2015
  • Ingår i: Scandinavian journal of urology. - : Informa Healthcare. - 2168-1805 .- 2168-1813. ; 49:2, s. 97-102
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: The reference standard for lymph-node staging in prostate cancer is currently an extended pelvic lymph-node dissection (ePLND), which detects most, but not all, regional lymph-node metastases. As an alternative to ePLND, sentinel-node dissection with preoperative isotope injection and imaging has been reported. The objective was to determine whether intraoperative sentinel-node detection with a simplified protocol can accurately determine lymph-node stage in prostate cancer patients.Materials and methods: Patients with biopsy-verified high-risk prostate cancer with tumour stage T2-3 were included in the study. All patients underwent both ePLND and sentinel-node detection. Tc-99m-marked nanocolloid was injected peritumourally by the operating urologist after induction of anaesthesia just before surgery. Sentinel nodes were detected both in vivo and ex vivo intraoperatively using a gamma probe. Sentinel nodes and metastases and their locations were recorded. Sensitivity and specificity were calculated.Results: At least one sentinel node was detected in 72 (87%) of the 83 patients. In 13 (18%) of these 72 patients sentinel nodes were detected outside the ePLND template. In six of these 13 patients, the Sentinel nodes from outside the template contained metastases, which proved to be the only metastases in two. For 12 patients the only metastatic deposit found was a micrometastasis (<= 2 mm) in a sentinel node. In the 72 patients with detectable sentinel nodes, pathological analysis of the sentinel node correctly categorized 71 and ePLND 70 patients.Conclusions: This protocol yielded results comparable to the commonly used technique of sentinel-node detection, but with more cases of non-detection.
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4.
  • Kollberg, Petter, et al. (författare)
  • [F-18]Fluorodeoxyglucose - positron emission tomography/computed tomography improves staging in patients with high-risk muscle-invasive bladder cancer scheduled for radical cystectomy
  • 2015
  • Ingår i: Scandinavian Journal of Urology. - : Medical Journals Sweden AB. - 2168-1813 .- 2168-1805. ; 49:4, s. 296-301
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. The aim of this study was to evaluate the clinical use of [F-18]-fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) in addition to conventional preoperative radiological investigations in a defined group of patients with high-risk muscle-invasive bladder cancer. Materials and methods. In total, 103 patients with high-risk muscle-invasive bladder cancer defined as stage T3/T4 disease or as stage T2 with hydronephrosis or high-risk histological features, who were provisionally scheduled to undergo cystectomy, were prospectively recruited to the study. The patients were referred to FDG-PET/CT in addition to standard preoperative investigation with computed tomography (CT). The final treatment decision was reached at a multidisciplinary conference based on all available information including the FDG-PET/Cf findings. Results. Compared to CT alone, FDG-PET/CT provided more supplemental findings suggesting malignant manifestations in 48 (47%) of the 103 patients. The additional FDG-PET/CT findings led to an altered provisional treatment plan in 28 out of 103 patients (27%), detection of disseminated bladder cancer and subsequent cancellation of the initially intended cystectomy in 16 patients, and identification of disseminated disease and treatment with induction chemotherapy before radical cystectomy in 12 patients. Conclusions. Preoperative FDG-PET/CT changed the treatment plan for a considerable proportion (27%) of the present patients. Accordingly, such examination can potentially improve the preoperative staging of cystectomy patients with high-risk features, and may also reduce the number of futile operations in patients with advanced disease who are beyond cure.
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5.
  • Körner, Stefanie Korsgaard, et al. (författare)
  • Which data are available in central registries on bladder cancer patients in the five Nordic countries
  • 2021
  • Ingår i: Scandinavian journal of urology. - : Taylor & Francis. - 2168-1805 .- 2168-1813. ; 55:2, s. 135-141
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: The aim of this study was to give a collective overview on all available data sources on bladder cancer patients in the Nordic countries including the amount of detail and coverage.METHODS: National representatives from five Nordic countries were asked to fill out a questionnaire on available information regarding bladder cancer patients from databases in their respective countries. Additional information was retrieved from descriptions of the relevant registries.RESULTS: : Information on overall survival was available in all countries whereas recurrence-free survival and cancer-specific survival were available for some but not all patients depending on treatment modality.CONCLUSIONS: Despite limitations, we found that it was possible to retrieve detailed information on diagnostics, treatment, and outcome for most aspects of bladder cancer in the Nordic countries on a population based, non-selected patient cohort.
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6.
  • Liedberg, Fredrik, et al. (författare)
  • Long-term functional outcomes after radical cystectomy with ileal bladder substitute : does the definition of continence matter?
  • 2017
  • Ingår i: Scandinavian Journal of Urology. - : Medical Journals Sweden AB. - 2168-1805 .- 2168-1813. ; 51:1, s. 44-49
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: Functional outcomes after ileal bladder substitution reflect the expectations of future patients at a particular centre. The aim of this study was to use validated questionnaires and a pad-weighing test to investigate functional outcomes after neobladder reconstruction at long-term follow-up in patients at a single centre. Materials and methods: During 2005 − 2015, 75 patients received a Studer ileal bladder substitute at the Department of Urology, Malmö. Forty-six of these patients were alive for follow-up and were evaluated using the pad-weighing test and the International Consultation on Incontinence Questionnaire–Urinary Incontinence Short Form (ICIQ-UI-SF), the Female Sexual Function Index (FSFI) and the International Index of Erectile Function (IIEF). Results: Five of 37 evaluable patients (14%) were considered fully continent, reporting a pad-weighing test result of 0 g and an ICIQ-UI-SF score of 0. The median ICIQ-UI-SF score was 8 [interquartile range (IQR) 3–11], and seven patients (17%) were continent according to the ICIQ-UI-SF score only. In the pad-weighing test, 28 out of 37 patients (76%) reported 0 g day-time leakage whereas only 12 out of 37 patients (32%) reported 0 g night-time leakage. At follow-up, nine out of 39 (23%) of evaluable male patients were potent. The median ICIQ-UI-SF score was significantly lower during the second half of the study period [4 (IQR 0–8) vs 10 (IQR 6–14); p = .003]. The inverse applied to the median IIEF score [5 (IQR 3–12) vs 2 (IQR 1–4); p = .02]. Conclusions: Functional outcomes at long-term follow-up after radical cystectomy and Studer ileal bladder substitute were at best modest in this series. Better outcomes during the second half of the study period might be explained by improved patient selection and a refined surgical technique, but possibly also by longer follow-up of patients during the first half of the period resulting in a more pronounced time-dependent decline in functional outcomes.
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7.
  • Liedberg, Fredrik, et al. (författare)
  • Preoperative staging of locally advanced bladder cancer before radical cystectomy using 3 tesla magnetic resonance imaging with a standardized protocol
  • 2013
  • Ingår i: Scandinavian Journal of Urology. - : Informa UK Limited. - 2168-1813 .- 2168-1805. ; 47:2, s. 108-112
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. The correlation between clinical tumour stage and pathological tumour stage in radical cystectomy specimens in locally advanced bladder cancer is suboptimal. Radiological methods have so far been of limited value in preoperative staging; however, the resolution with magnetic resonance imaging (MRI) has improved with further technical developments of the method. The aim of this study was to compare tumour stage at MRI with pathological tumour stage in the cystectomy specimen. Material and methods. Prospectively, 53 patients with invasive bladder cancer were preoperatively investigated with 3 tesla (3T) MRI using a standardized protocol. 3T MRI was performed at a standardized bladder volume. Clinical tumour stage, tumour stage at MRI and pathological tumour stage groups (Ta, Cis, T1/T2a, T2b/T3a, T3b/T4a), were compared, and sensitivity and specificity for organ-confined and non-organ-confined disease (stage T3a or above or lymph-node metastases) were analysed. Results. MRI overestimated tumour stage in 23 out of 47 patients (49%), whereas six patients (13%) were understaged. In the three groups of patients (those with the same stage group at MRI as in the cystectomy specimen, overestimated tumour stage and understaged patients), the time interval between transurethral resection of the bladder (TURB) and MRI did not differ significantly. Conclusions. Preoperative MRI overestimated tumour stage in almost half of the patients investigated in this study. Postoperative changes could have contributed to such overstaging with MRI.
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8.
  • Sörenby, Anne, et al. (författare)
  • Reducing recurrence in non-muscle-invasive bladder cancer by systematically implementing guideline-based recommendations : effect of a prospective intervention in primary bladder cancer patients
  • 2019
  • Ingår i: Scandinavian Journal of Urology. - : Medical Journals Sweden AB. - 2168-1805 .- 2168-1813. ; 53:2-3, s. 109-115
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: In non-muscle-invasive bladder cancer (NMIBC), local recurrence after transurethral resection of the bladder (TURB) is common. Outcomes vary between urological centres, partly due to the sub-optimal surgical technique and insufficient application of measures recommended in the guidelines. This study evaluated early recurrence rates after primary TURB for NMIBC before and after introducing a standardized treatment protocol. Methods: Medical records of all patients undergoing primary TURB for NMIBC in 2010 at Skåne University Hospital, Malmö, Sweden, were reviewed. A new treatment protocol for NMIBC was defined and introduced in 2013, and results documented during the first year thereafter were compared with those recorded in 2010 prior to the intervention. The primary endpoint was early recurrence at first control cystoscopy. Comparisons were made by Chi-square analysis and Fisher’s exact test. Recurrence-free survival (RFS) in the two cohorts was also investigated. Results: TURB was performed on 116 and 159 patients before and after the intervention, respectively. The early recurrence rate decreased from 22% to 9.6% (p = 0.005) at the first control cystoscopy after treatment. Residual/Recurrent tumour at the first control cystoscopy after the primary TURB (i.e. at second-look resection or first control cystoscopy) decreased from 31% to 20% (p = 0.038). The proportion of specimens containing muscle in T1 tumours increased from 55% to 94% (p < 0.001). RFS was improved in the intervention group (HR = 0.65, CI = 0.43–1.0; p = 0.05). Conclusions: Introduction of a standardized protocol and reducing the number of surgeons for primary treatment of NMIBC decreased the early recurrence rate from 22% to 9.6% and lowered the recurrence incidence by 35%.
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