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Vargas López AJ, Fernández Carballal C, Valera Melé M, Rodríguez-Boto G. Survival analysis in high-grade glioma: The role of salvage surgery. Neurologia 2023; 38:21-28. [PMID: 36464224 DOI: 10.1016/j.nrleng.2020.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 04/01/2020] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVES This study addresses the survival of consecutive patients with high-grade gliomas (HGG) treated at the same institution over a period of 10 years. We analyse the importance of associated factors and the role of salvage surgery at the time of progression. METHODS We retrospectively analysed a series of patients with World Health Organization (WHO) grade III/IV gliomas treated between 2008 and 2017 at Hospital Gregorio Marañón (Madrid, Spain). Clinical, radiological, and anatomical pathology data were obtained from patient clinical histories. RESULTS Follow-up was completed in 233 patients with HGG. Mean age was 62.2 years. The median survival time was 15.4 months. Of 133 patients (59.6%) who had undergone surgery at the time of diagnosis, 43 (32.3%) underwent salvage surgery at the time of progression. This subgroup presented longer overall survival and survival after progression. Higher Karnofsky Performance Status score at diagnosis, a greater extent of surgical resection, and initial diagnosis of WHO grade III glioma were also associated with longer survival. CONCLUSIONS About one-third of patients with HGG may be eligible for salvage surgery at the time of progression. Salvage surgery in this subgroup of patients was significantly associated with longer survival.
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Affiliation(s)
- A J Vargas López
- Servicio de Neurocirugía, Hospital Universitario Torrecárdenas, Almería, Spain; Programa de Doctorado en Medicina y Cirugía, Universidad Autónoma de Madrid, Madrid, Spain.
| | - C Fernández Carballal
- Servicio de Neurocirugía, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - M Valera Melé
- Servicio de Neurocirugía, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - G Rodríguez-Boto
- Programa de Doctorado en Medicina y Cirugía, Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Neurocirugía, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
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Fischer GF, Brügge D, Andratschke N, Baumert BG, Bosetti DG, Caparrotti F, Herrmann E, Papachristofilou A, Rogers S, Schwyzer L, Zwahlen DR, Hundsberger T, Putora PM. Postoperative radiotherapy for meningiomas - a decision-making analysis. BMC Cancer 2022; 22:492. [PMID: 35509011 PMCID: PMC9066948 DOI: 10.1186/s12885-022-09607-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 04/25/2022] [Indexed: 11/30/2022] Open
Abstract
Background The management of meningiomas is challenging, and the role of postoperative radiotherapy is not standardized. Methods Radiation oncology experts in Swiss centres were asked to participate in this decision-making analysis on the use of postoperative radiotherapy (RT) for meningiomas. Experts from ten Swiss centres agreed to participate and provided their treatment algorithms. Their input was converted into decision trees based on the objective consensus methodology. The decision trees were used as a basis to identify consensus and discrepancies in clinical routine. Results Several criteria used for decision-making in postoperative RT in meningiomas were identified: histological grading, resection status, recurrence, location of the tumour, zugzwang (therapeutic need to treat and/or severity of symptoms), size, and cell division rate. Postoperative RT is recommended by all experts for WHO grade III tumours as well as for incompletely resected WHO grade II tumours. While most centres do not recommend adjuvant irradiation for WHO grade I meningiomas, some offer this treatment in recurrent situations or routinely for symptomatic tumours in critical locations. The recommendations for postoperative RT for recurrent or incompletely resected WHO grade I and II meningiomas were surprisingly heterogeneous. Conclusions Due to limited evidence on the utility of postoperative RT for meningiomas, treatment strategies vary considerably among clinical experts depending on the clinical setting, even in a small country like Switzerland. Clear majorities were identified for postoperative RT in WHO grade III meningiomas and against RT for hemispheric grade I meningiomas outside critical locations. The limited data and variations in clinical recommendations are in contrast with the high prevalence of meningiomas, especially in elderly individuals. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09607-z.
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Affiliation(s)
- Galina Farina Fischer
- Department of Radiation Oncology, Kantonsspital St. Gallen, Rorschacherstr. 95, 9007, St. Gallen, Switzerland.
| | - Detlef Brügge
- Department of Radiation Oncology, Kantonsspital St. Gallen, Rorschacherstr. 95, 9007, St. Gallen, Switzerland
| | - Nicolaus Andratschke
- Department of Radiation Oncology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | | | - Davide Giovanni Bosetti
- Clinic of Radiation Oncology, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Francesca Caparrotti
- Department of Radiation Oncology, University Hospital Geneva, Geneva, Switzerland
| | - Evelyn Herrmann
- Department of Radiation Oncology, University of Bern, Bern, Switzerland.,Department of Radiation Oncology, Hôpital Riviera-Chablais, Rennaz, Switzerland
| | | | - Susanne Rogers
- Radiation Oncology Centre KSA-KSB, Kantonsspital Aarau, Aarau, Switzerland
| | - Lucia Schwyzer
- Department of Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland
| | | | - Thomas Hundsberger
- Department of Neurology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.,Department of Clinical Oncology and Hematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Paul Martin Putora
- Department of Radiation Oncology, Kantonsspital St. Gallen, Rorschacherstr. 95, 9007, St. Gallen, Switzerland.,Department of Radiation Oncology, University of Bern, Bern, Switzerland
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3
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Next generation sequencing in adult patients with glioblastoma in Switzerland: a multi-centre decision analysis. J Neurooncol 2022; 158:359-367. [PMID: 35486306 DOI: 10.1007/s11060-022-04022-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/20/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Glioblastoma is the most common malignant primary brain tumour in adults and driven by various genomic alterations. Next generation sequencing (NGS) provides timely information about the genetic landscape of tumours and might detect targetable mutations. To date, differences exist in the application and NGS assays used as it remains unclear to what extent these variants may affect clinical decision making. In this survey-based study, we investigated the use of NGS in adult patients with glioblastoma in Switzerland. METHODS All eight primary care centres for Neuro-Oncology in Switzerland participated in this survey. The NGS assays used as well as the criteria for the application of NGS in newly diagnosed glioblastoma were investigated. Decision trees were analysed for consensus and discrepancies using the objective consensus methodology. RESULTS Seven out of eight centres perform NGS in patients with newly diagnosed glioblastoma using custom made or commercially available assays. The criteria most relevant to decision making were age, suitability of standard treatment and fitness. NGS is most often used in fitter patients under the age of 60 years who are not suitable for standard therapy, while it is rarely performed in patients in poor general health. CONCLUSION NGS is frequently applied in glioblastomas in adults in Neuro-Oncology centres in Switzerland despite seldom changing the course of treatment to date.
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Steffen T, Häller L, Bijelic L, Glatzer M, Glehen O, Goéré D, de Hingh I, Li Y, Moran BJ, Morris DL, Piso P, Quadros CA, Rau B, Sugarbaker P, Yonemura Y, Putora PM. Decision-Making Analysis for Hyperthermic Intraperitoneal Chemotherapy in Ovarian Cancer: A Survey by the Executive Committee of the Peritoneal Surface Oncology Group International (PSOGI). Oncology 2020; 99:41-48. [PMID: 32920557 DOI: 10.1159/000510098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 07/06/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To assess the individual treatment strategies among international experts in peritoneal carcinosis, specifically their decision-making in the process of patient selection for hyperthermic intraperitoneal chemotherapy (HIPEC) in women suffering from ovarian cancer, to identify relevant decision-making criteria, and to quantify the level of consensus for or against HIPEC. METHODS The members of the executive committee of the Peritoneal Surface Oncology Group International (PSOGI) were asked to describe the clinical conditions under which they would recommend HIPEC in patients with ovarian cancer and to describe any disease or patient characteristics relevant to their decision. All answers were then merged and converted into decision trees. The decision trees were then analyzed by applying the objective consensus methodology. RESULTS Nine experts in surgical oncology provided information on their multidisciplinary treatment strategy including HIPEC for patients with advanced ovarian cancer. Three of the total of 12 experts did not perform HIPEC. Five criteria relevant to the decision on whether HIPEC is performed were applied. In patients with resectable disease, a peritoneal cancer index (PCI) <21, and epithelial ovarian cancer without distant metastasis, consent was received by 75% to perform HIPEC for women suffering from recurrent disease. Furthermore, in the primary disease setting, consent was received by 67% to perform HIPEC according to the same criteria. DISCUSSION AND CONCLUSION Among surgical oncology experts in peritoneal surface malignancy and HIPEC, HIPEC plays an important role in primary and recurrent ovarian cancer, and the PCI is the most important criterion in this decision.
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Affiliation(s)
- Thomas Steffen
- Department of Surgery, Cantonal Hospital of St. Gallen, St. Gallen, Switzerland,
| | - Lukas Häller
- Department of Surgery, Cantonal Hospital of St. Gallen, St. Gallen, Switzerland
| | - Lana Bijelic
- Peritoneal Surface Malignancies Unit, Hospital Sant Joan Despi Moises Broggi, Barcelona, Spain
| | - Markus Glatzer
- Department of Radiation Oncology, Cantonal Hospital of St. Gallen, St. Gallen, Switzerland
| | - Olivier Glehen
- Department of Digestive Surgery, Hospices Civils de Lyon, Lyon, France
| | - Diane Goéré
- Department of Surgery, Gustave Roussy Institute, Villejuif, France
| | - Ignace de Hingh
- Department of Surgery, Catharina Hospital, Eindhoven, The Netherlands
| | - Yan Li
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Beijing, China
| | - Brendan J Moran
- Peritoneal Malignancy Institute, Basingstoke and North Hampshire Hospital, Basingstoke, United Kingdom
| | - David L Morris
- Department of Surgery, St. George Hospital and University of New South Wales, Sydney, New South Wales, Australia
| | - Pompiliu Piso
- Department of Surgical Oncology, Hospital Barmherzige Brüder Regensburg, Regensburg, Germany
| | | | - Beate Rau
- Department of General Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Paul Sugarbaker
- Peritoneal Surface Oncology Unit, MedStar Washington Hospital Center, Washington, District of Columbia, USA
| | - Yutaka Yonemura
- Peritoneal Metastasis Center, Kishiwada Tokushukai Hospital, Osaka, Japan
| | - Paul M Putora
- Department of Radiation Oncology, Cantonal Hospital of St. Gallen, St. Gallen, Switzerland.,Department of Radiation Oncology, University of Bern, Bern, Switzerland
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Vargas López AJ, Fernández Carballal C, Valera Melé M, Rodríguez-Boto G. Survival analysis in high-grade glioma: the role of salvage surgery. Neurologia 2020; 38:S0213-4853(20)30125-0. [PMID: 32709508 DOI: 10.1016/j.nrl.2020.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 03/21/2020] [Accepted: 04/01/2020] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES This study addresses the survival of consecutive patients with high-grade gliomas treated at the same institution over a period of 10 years. We analyse the importance of associated factors and the role of salvage surgery at the time of progression. METHODS We retrospectively analysed a series of patients with World Health Organization (WHO) grade III/IV gliomas treated between 2008 and 2017 at Hospital Gregorio Marañón (Madrid, Spain). Clinical, radiological, and anatomical pathology data were obtained from patient clinical histories. RESULTS Follow-up was completed in 233 patients with HGG. Mean age was 62.2 years. The median survival time was 15.4 months. Of 133 patients (59.6%) who had undergone surgery at the time of diagnosis, 43 (32.3%) underwent salvage surgery at the time of progression. This subgroup presented longer overall survival and survival after progression. Higher Karnofsky Performance Status score at diagnosis, a greater extent of surgical resection, and initial diagnosis of WHO grade III glioma were also associated with longer survival. CONCLUSIONS About one-third of patients with HGG may be eligible for salvage surgery at the time of progression. Salvage surgery in this subgroup of patients was significantly associated with longer survival.
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Affiliation(s)
- A J Vargas López
- Servicio de Neurocirugía, Hospital Universitario Torrecárdenas, Almería, España; Programa de Doctorado en Medicina y Cirugía, Universidad Autónoma de Madrid, Madrid, España.
| | - C Fernández Carballal
- Servicio de Neurocirugía, Hospital General Universitario Gregorio Marañón, Madrid, España
| | - M Valera Melé
- Servicio de Neurocirugía, Hospital General Universitario Gregorio Marañón, Madrid, España
| | - G Rodríguez-Boto
- Programa de Doctorado en Medicina y Cirugía, Universidad Autónoma de Madrid, Madrid, España; Servicio de Neurocirugía, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, España
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6
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Variations in radioiodine ablation: decision-making after total thyroidectomy. Eur J Nucl Med Mol Imaging 2019; 47:554-560. [PMID: 31707428 DOI: 10.1007/s00259-019-04557-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 09/25/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND The role of radioiodine treatment following total thyroidectomy for differentiated thyroid cancer is changing. The last major revision of the American Thyroid Association (ATA) Management Guidelines for Patients with Thyroid Nodules and Differentiated Thyroid Cancer in 2015 changed treatment recommendations dramatically in comparison with the European Association of Nuclear Medicine (EANM) 2008 guidelines. We hypothesised that there is marked variability between the different treatment regimens used today. METHODS We analysed decision-making in all Swiss hospitals offering radioiodine treatment to map current practice within the community and identify consensus and discrepancies. RESULTS AND CONCLUSION: We demonstrated that for low-risk DTC patients after thyroidectomy, some institutions offered only follow-up, while RIT with significant activities is recommended in others. For intermediate- and high-risk patients, radioiodine treatment is generally recommended. Dosing and treatment preparation (recombinant human thyroid stimulation hormone (rhTSH) vs. thyroid hormone withdrawal (THW)) vary significantly among centres.
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Panje CM, Glatzer M, Sirén C, Plasswilm L, Putora PM. Treatment Options in Oncology. JCO Clin Cancer Inform 2019; 2:1-10. [PMID: 30652608 DOI: 10.1200/cci.18.00017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Multiple treatment strategies exist for many oncologic problems. In this review, we provide a summary of various reasons for the existence of multiple treatment options in oncology, including factors that concern the treating physician (eg, treatment preferences), environmental factors (eg, financial, regulatory, and scientific aspects), and individual patient-specific factors (eg, medical condition, preferences). We demonstrate the vital role of available treatment options and their origins for clinical decision making and patient communication. These aspects are particularly helpful in the process of shared decision making, which is increasingly favored in situations where there are multiple medically reasonable options.
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Affiliation(s)
- Cédric M Panje
- Cédric M. Panje, Markus Glatzer, Ludwig Plasswilm, and Paul M. Putora, Kantonsspital St Gallen; Charlotta Sirén, Institute of Technology Management, University of St Gallen, St Gallen; and Ludwig Plasswilm and Paul M. Putora, University of Bern, Bern, Switzerland
| | - Markus Glatzer
- Cédric M. Panje, Markus Glatzer, Ludwig Plasswilm, and Paul M. Putora, Kantonsspital St Gallen; Charlotta Sirén, Institute of Technology Management, University of St Gallen, St Gallen; and Ludwig Plasswilm and Paul M. Putora, University of Bern, Bern, Switzerland
| | - Charlotta Sirén
- Cédric M. Panje, Markus Glatzer, Ludwig Plasswilm, and Paul M. Putora, Kantonsspital St Gallen; Charlotta Sirén, Institute of Technology Management, University of St Gallen, St Gallen; and Ludwig Plasswilm and Paul M. Putora, University of Bern, Bern, Switzerland
| | - Ludwig Plasswilm
- Cédric M. Panje, Markus Glatzer, Ludwig Plasswilm, and Paul M. Putora, Kantonsspital St Gallen; Charlotta Sirén, Institute of Technology Management, University of St Gallen, St Gallen; and Ludwig Plasswilm and Paul M. Putora, University of Bern, Bern, Switzerland
| | - Paul M Putora
- Cédric M. Panje, Markus Glatzer, Ludwig Plasswilm, and Paul M. Putora, Kantonsspital St Gallen; Charlotta Sirén, Institute of Technology Management, University of St Gallen, St Gallen; and Ludwig Plasswilm and Paul M. Putora, University of Bern, Bern, Switzerland
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Steffen T, Putora PM, Hübner M, Gloor B, Lehmann K, Kettelhack C, Adamina M, Peterli R, Schmidt J, Ris F, Glatzer M. Diagnostic Nodes of Patient Selection for Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy Among Colorectal Cancer Patients: A Swiss National Multicenter Survey. Clin Colorectal Cancer 2019; 18:e335-e342. [PMID: 31371166 DOI: 10.1016/j.clcc.2019.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 06/03/2019] [Accepted: 06/17/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The management of patients with colorectal cancer (CRC) with peritoneal metastases is challenging, and the roles of cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) are unclear and debated among experts. MATERIALS AND METHODS The experts of the Swiss Peritoneal Cancer Group were contacted and agreed to participate in this analysis. Experts from 9 centers in Switzerland provided their decision algorithms for CRS/HIPEC for patients with or at high risk for peritoneal metastases from CRC. Their responses were converted into decision trees on the basis of objective consensus methodology. The decision trees were used as a basis to identify consensus and discrepancies. RESULTS The final treatment algorithms included a total of 5 decision criteria (age, Peritoneal Cancer Index [PCI], extraperitoneal metastases, Peritoneal Surface Disease Severity Score, and various risk factors [RF]) and 2 treatment options (HIPEC, yes or no). HIPEC was never recommended for patients without peritoneal metastases in the absence of RF for peritoneal metastases. For patients with a PCI ≤15 without organ metastases, all centers recommended CRS/HIPEC. There was also a consensus not to perform CRS/HIPEC in elderly patients (80 years and older), those with a PCI >20, and those with unresectable metastases. For patients with a PCI = 16 to 20, there was no consensus. CONCLUSION Multiple decision criteria relevant to all participating centers were identified. Because patient selection for CRS/HIPEC remains difficult, uniform criteria for the term "high risk" for peritoneal metastases and systemic metastases are helpful. Future trials and guidelines should take these criteria into account.
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Affiliation(s)
- Thomas Steffen
- Department of Surgery, Kantonsspital St Gallen, St Gallen, Switzerland.
| | - Paul Martin Putora
- Department of Radiation Oncology, Kantonsspital St Gallen, St Gallen, Switzerland; Department of Radiation Oncology, University of Bern, Bern, Switzerland
| | - Martin Hübner
- Department of Visceral Surgery, Lausanne University Hospital, Lausanne, Switzerland
| | - Beat Gloor
- Department of Surgery, Inselspital, University Hospital of Bern, Bern, Switzerland
| | - Kuno Lehmann
- Department of Surgery and Transplantation, University Hospital of Zürich, Zürich, Switzerland
| | | | - Michel Adamina
- Department of Surgery, Kantonsspital Winterthur, Winterthur, Switzerland
| | - Ralph Peterli
- Department of Surgery, St Claraspital, Basel, Switzerland
| | - Jan Schmidt
- Department of Surgery, Klinik Hirslanden, Zürich, Switzerland
| | - Frédéric Ris
- Department of Surgery, University Hospital of Geneva, Geneva, Switzerland
| | - Markus Glatzer
- Department of Radiation Oncology, Kantonsspital St Gallen, St Gallen, Switzerland
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Comparison of recent pivotal recommendations for the diagnosis and treatment of late-onset Pompe disease using diagnostic nodes-the Pompe disease burden scale. J Neurol 2019; 266:2010-2017. [PMID: 31104135 DOI: 10.1007/s00415-019-09373-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 12/28/2022]
Abstract
Pompe disease is a rare autosomal-recessive disorder characterised by limb-girdle myopathy and respiratory weakness in the late-onset form (LOPD). Various mutations in the acid alpha-glucosidase gene lead to toxic lysosomal and extra-lysosomal glycogen accumulation in all organs due to ineffective glycogen clearance by the encoded enzyme. Only one randomized trial demonstrated beneficial effects of respiratory function and meters walked in the 6-min walking test with enzyme replacement therapy (ERT). These results were confirmed in several retrospective and prospective observations and in meta-analyses. Due to a potential lifelong therapy, moderate efficacy and high treatment costs time of ERT initiation and cessation is an ongoing matter of debate. So far, several national and international recommendations have been published with different criteria concerning diagnosis, initiation and cessation of ERT in LOPD. We therefore formally analysed recent published recommendations and consensus statements of LOPD using diagnostic nodes (DODES) as a special software tool. With DODES, an objective analysis becomes possible if the content of the recommendations is represented as algorithms using cross-compatible elements. This analysis formally disclosed both, areas of great heterogeneity and concordance for the diagnosis and management of LOPD and paved the way for a Pompe disease burden scale focussing on ERT initiation. According to this investigation further clinical research should concentrate on ERT in pre-symptomatic and severely affected LOPD patients and on cessation criteria for ERT as these issues are areas of international uncertainty and discordance.
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Zumstein V, Betschart P, Abt D, Schmid HP, Panje CM, Putora PM. Surgical management of urolithiasis - a systematic analysis of available guidelines. BMC Urol 2018; 18:25. [PMID: 29636048 PMCID: PMC5894235 DOI: 10.1186/s12894-018-0332-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 03/08/2018] [Indexed: 02/07/2023] Open
Abstract
Background Several societies around the world issue guidelines incorporating the latest evidence. However, even the most commonly cited guidelines of the European Association of Urology (EAU) and the American Urological Association (AUA) leave the clinician with several treatment options and differ on specific points. We aimed to identify discrepancies and areas of consensus between guidelines to give novel insights into areas where low consensus between the guideline panels exists, and therefore where more evidence might increase consensus. Methods The webpages of the 61 members of the Societé Internationale d’Urologie were analysed to identify all listed or linked guidelines. Decision trees for the surgical management of urolithiasis were derived, and a comparative analysis was performed to determine consensus and discrepancies. Results Five national and one international guideline (EAU) on surgical stone treatment were available for analysis. While 7 national urological societies refer to the AUA guidelines and 11 to the EAU guidelines, 43 neither publish their own guidelines nor refer to others. Comparative analysis revealed a high degree of consensus for most renal and ureteral stone scenarios. Nevertheless, we also identified a variety of discrepancies between the different guidelines, the largest being the approach to the treatment of proximal ureteral calculi and larger renal calculi. Conclusions Six guidelines with recommendations for the surgical treatment of urolithiasis to support urologists in decision-making were available for inclusion in our analysis. While there is a high grade of consensus for most stone scenarios, we also detected some discrepancies between different guidelines. These are, however, controversial situations where adequate evidence to assist with decision-making has yet to be elicited by further research.
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Affiliation(s)
- Valentin Zumstein
- Department of Urology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland. .,Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Patrick Betschart
- Department of Urology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Dominik Abt
- Department of Urology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Hans-Peter Schmid
- Department of Urology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Cedric Michael Panje
- Department of Radiation Oncology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Paul Martin Putora
- Department of Radiation Oncology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.,Department of Radiation Oncology, lnselspital, Bern University Hospital, Bern, Switzerland
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Rothermundt C, Fischer GF, Bauer S, Blay JY, Grünwald V, Italiano A, Kasper B, Kollár A, Lindner LH, Miah A, Sleijfer S, Stacchiotti S, Putora PM. Pre- and Postoperative Chemotherapy in Localized Extremity Soft Tissue Sarcoma: A European Organization for Research and Treatment of Cancer Expert Survey. Oncologist 2017; 23:461-467. [PMID: 29192019 DOI: 10.1634/theoncologist.2017-0391] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 11/02/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The management of localized extremity soft tissue sarcomas (STS) is challenging and the role of pre- and postoperative chemotherapy is unclear and debated among experts. MATERIALS AND METHODS Medical oncology experts of the European Organization for Research and Treatment of Cancer Soft Tissue and Bone Sarcoma Group were asked to participate in this survey on the use of pre- and postoperative chemotherapy in STS. Experts from 12 centers in Belgium, France, Germany, Great Britain, Italy, Switzerland, and The Netherlands agreed to participate and provided their treatment algorithm. Answers were converted into decision trees based on the objective consensus methodology. The decision trees were used as a basis to identify consensus and discrepancies. RESULTS Several criteria used for decision-making in extremity STS were identified: chemosensitivity, fitness, grading, location, and size. In addition, resectability and resection status were relevant in the pre- and postoperative setting, respectively. Preoperative chemotherapy is considered in most centers for marginally resectable tumors only. Yet, in some centers, neoadjuvant chemotherapy is used routinely and partially combined with hyperthermia. Although most centers do not recommend postoperative chemotherapy, some offer this treatment on a regular basis. Radiotherapy is an undisputed treatment modality in extremity STS. CONCLUSION Due to lacking evidence on the utility of pre- and postoperative chemotherapy in localized extremity STS, treatment strategies vary considerably among European experts. The majority recommended neoadjuvant chemotherapy for marginally resectable grade 2-3 tumors; the majority did not recommend postoperative chemotherapy in any setting. IMPLICATIONS FOR PRACTICE The management of localized extremity soft tissue sarcomas (STS) is challenging and the role of pre- and postoperative chemotherapy is unclear and debated among experts. This study analyzed the decision-making process among 12 European experts on systemic therapy for STS. A wide range of recommendations among experts regarding the use of perioperative chemotherapy was discovered. Discrepancies in the use of decision criteria were also uncovered, including the definition of what constitutes high-risk cancer, which is a basis for many to recommend chemotherapy. Before any standardization is possible, a common use of decision criteria is necessary.
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Affiliation(s)
- Christian Rothermundt
- Division of Medical Oncology and Hematology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Galina F Fischer
- Division of Radio Oncology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | | | | | - Viktor Grünwald
- Clinic for Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Medical School Hannover, Hannover, Germany
| | - Antoine Italiano
- Early Phase Trials and Sarcoma Units, Institut Bergonié, Bordeaux, France
| | - Bernd Kasper
- Tumor Centre and Centre of Oncology, University Hospital Mannheim, Mannheim, Germany
| | - Attila Kollár
- Division of Medical Oncology, University Hospital Bern, Bern, Switzerland
| | - Lars H Lindner
- Sarcoma Centre, University Hospital Munich - Campus Grosshadern, Munich, Germany
| | - Aisha Miah
- Sarcoma Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Stefan Sleijfer
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | | | - Paul Martin Putora
- Division of Radio Oncology, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
- Department of Radiation Oncology, lnselspital, Bern University Hospital, University of Bern, Switzerland
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Panje CM, Glatzer M, von Rappard J, Rothermundt C, Hundsberger T, Zumstein V, Plasswilm L, Putora PM. Applied Swarm-based medicine: collecting decision trees for patterns of algorithms analysis. BMC Med Res Methodol 2017; 17:123. [PMID: 28814269 PMCID: PMC5559810 DOI: 10.1186/s12874-017-0400-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 08/02/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The objective consensus methodology has recently been applied in consensus finding in several studies on medical decision-making among clinical experts or guidelines. The main advantages of this method are an automated analysis and comparison of treatment algorithms of the participating centers which can be performed anonymously. METHODS Based on the experience from completed consensus analyses, the main steps for the successful implementation of the objective consensus methodology were identified and discussed among the main investigators. RESULTS The following steps for the successful collection and conversion of decision trees were identified and defined in detail: problem definition, population selection, draft input collection, tree conversion, criteria adaptation, problem re-evaluation, results distribution and refinement, tree finalisation, and analysis. CONCLUSION This manuscript provides information on the main steps for successful collection of decision trees and summarizes important aspects at each point of the analysis.
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Affiliation(s)
- Cédric M. Panje
- Department of Radiation Oncology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007 St. Gallen, Switzerland
| | - Markus Glatzer
- Department of Radiation Oncology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007 St. Gallen, Switzerland
| | | | | | - Thomas Hundsberger
- Department of Medical Oncology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Valentin Zumstein
- Department of Urology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Ludwig Plasswilm
- Department of Radiation Oncology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007 St. Gallen, Switzerland
| | - Paul Martin Putora
- Department of Radiation Oncology, Kantonsspital St. Gallen, Rorschacherstrasse 95, 9007 St. Gallen, Switzerland
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Abstract
Zusammenfassung. Das Glioblastom rezidiviert regelmässig trotz multimodaler Erstlinientherapie innerhalb weniger Monate nach der Diagnose. Für diese Situation ist bislang noch kein Therapiestandard etabliert. Bevacizumab, ein Antikörper gegen den vaskulären endothelialen Wachstumsfaktor, weckte grosse Hoffnungen in der Therapie des Glioblastoms. Zwei Phase-III-Studien zeigten allerdings nur eine Verzögerung der Krankheitsprogression, nicht aber des Gesamtüberlebens, durch die Kombination der Standarderstlinientherapie mit Bevcizumab. Gleiches ergab die EORTC 26101-Rezidivtherapiestudie mit einer Kombination von Lomustin/Bevacizumab gegenüber einer Lomustin-Monotherapie. Zudem existieren widersprüchliche Beobachtungen zur Lebensqualität und Neurokognition. Trotz der insgesamt enttäuschenden Studienlage wird Bevacizumab aufgrund seines sehr guten palliativen Effektes von den Schweizer neuro-onkologischen Zentren als zugelassene Therapieoption in der Rezidivtherapie häufig eingesetzt. Vakzinierungs- und Immuntherapien eröffnen neue Einsatzmöglichkeiten für Bevacizumab in der Behandlung primärer Hirntumoren.
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Affiliation(s)
- Thomas Hundsberger
- 1 Klinik für Neurologie, Kantonsspital St. Gallen
- 2 Klinik für Hämatologie und Onkologie, Kantonsspital St. Gallen
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Second-line treatment for metastatic clear cell renal cell cancer: experts' consensus algorithms. World J Urol 2016; 35:641-648. [PMID: 27488984 DOI: 10.1007/s00345-016-1903-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 07/19/2016] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Second-line systemic treatment options for metastatic clear cell renal cell cancer (mccRCC) are diverse and treatment strategies are variable among experts. Our aim was to investigate the approach for the second-line treatment after first-line therapy with a tyrosine kinase inhibitor (TKI). Recently two phase III trials have demonstrated a potential role for nivolumab (NIV) and cabozantinib (CAB) in this setting. We aimed to estimate the impact of these trials on clinical decision making. MATERIALS AND METHODS Eleven international experts were asked to provide their treatment strategies for second-line systemic therapy for mccRCC in the current setting and once NIV and CAB will be approved and available. The treatment strategies were analyzed with the objective consensus approach. RESULTS The analysis of the decision trees revealed everolimus (EVE), axitinib (AXI), NIV and TKI switch (sTKI) as therapeutic options after first-line TKI therapy in the current situation and mostly NIV and CAB in the future setting. The most commonly used criteria for treatment decisions were duration of response, TKI tolerance and zugzwang a composite of several related criteria. CONCLUSION In contrast to the first-line setting, recommendations for second-line systemic treatment of mccRCC among experts were not as heterogeneous. The agents mostly used after disease progression on a first-line TKI included: EVE, AXI, NIV and sTKI. In the future setting of NIV and CAB availability, NIV was the most commonly chosen drug, whereas several experts identified situations where CAB would be preferred.
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