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Honecker F, Müller A, Schär S, Rosset L, Corke M, Schwitter M, Güth U, Jakob A, Balmelli-Cattelan C, Leo C, Fehr M, Thorn D, Riniker S, Chouiter-Djebaili A, Musilova J, Ribi K, Hoefnagels N. Effect of a 24 week home-based walking program on the incidence of aromatase inhibitor induced musculoskeletal pain: The WISE prospective, randomized, multicenter trial [SAKK 95/17]. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01466-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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2
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Abstract
In captivity, cardiovascular diseases are common in grey parrots. The diagnosis of these diseases in living birds is difficult, and new diagnostic possibilities would be desirable. The heart is an important endocrine organ in which cardiomyocytes synthetise B-type natriuretic peptide (BNP) and release it into the bloodstream. This hormone has a significant role in cardiovascular and body fluid regulation. The blood concentration of BNP is used in human medicine and small animal medicine as a diagnostic tool in the identification of heart diseases and as a prognostic marker for the risk of mortality. The nucleotide and amino acid sequence of BNP was described in Congo (n = 4) and Timneh (n = 3) grey parrots by PCR after RNA isolation from the atria and ventricles. The results showed a high similarity between the nucleotide sequences of the grey parrots’ BNP and the already known sequence of this hormone in chickens. The amino acid sequence of the mature peptide region is consistent in these three species. BNP plasma concentration could be a possible blood parameter for identifying clinically manifest cardiovascular diseases in grey parrots as it is in other species.
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Affiliation(s)
- Anja Hennig
- Clinic for Small Mammals, Reptiles and Birds, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany.
| | - L Mohr
- Clinic for Poultry, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany
| | - M Fehr
- Clinic for Small Mammals, Reptiles and Birds, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany
| | - M Legler
- Clinic for Small Mammals, Reptiles and Birds, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany
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3
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Novak U, Fehr M, Schär S, Dreyling M, Scheubeck G, Ramadan S, Zucca E, Zander T, Hess G, Mey U, Ferrero S, Mach N, Boccomini C, Böttcher S, Voegeli M, Cairoli A, Menter T, Dirnhofer S, Gadient S, Eckhardt K, Driessen C, Renner C. SAKK 36/13 ‐ IBRUTINIB PLUS BORTEZOMIB AND IBRUTINIB MAINTENANCE FOR RELAPSED AND REFRACTORY MANTLE CELL LYMPHOMA: FINAL REPORT OF A PHASE I/II TRIAL OF THE EUROPEAN MCL NETWORK. Hematol Oncol 2021. [DOI: 10.1002/hon.62_2879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- U. Novak
- Inselspital, Bern University Hospital Medical Oncology Bern Switzerland
| | - M. Fehr
- Kantonsspital St. Gallen Department of Medical Oncology and Hematology St. Gallen Switzerland
| | - S. Schär
- SAKK Coordinating Center Bern Switzerland
| | - M. Dreyling
- Universität München‐Grossadern Medizinische Klinik III München Germany
| | - G. Scheubeck
- Universität München‐Grossadern Medizinische Klinik III München Germany
| | - S. Ramadan
- IEO, European Institute of Oncology IRCCS Onco‐Hematology Division Milano Italy
| | - E. Zucca
- Oncology Institute of Southern Switzerland Ospedale San Giovanni Bellinzona Switzerland
| | - T. Zander
- Kantonsspital Luzern Department Oncology Luzern Switzerland
| | - G. Hess
- Johannes Gutenberg Universität Mainz Universitätsmedizin Mainz Germany
| | - U. Mey
- Kantonsspital Graubünden Department of Oncology and Hematology Chur Switzerland
| | - S. Ferrero
- AOU "Città della Salute e della Scienza di Torino" Hematology 1 Torino Italy
| | - N. Mach
- University Hospital of Geneva Department of Oncology Genève Switzerland
| | - C. Boccomini
- AOU "Città della Salute e della Scienza di Torino" Hematology 1 Torino Italy
| | - S. Böttcher
- Rostock University Medical Center Department of Medicine, Clinic III ‐ Hematology, Oncology Palliative Medicine Rostock Germany
| | - M. Voegeli
- Kantonsspital Baselland Oncology Liestal Switzerland
| | - A. Cairoli
- CHUV University Hospital and University of Lausanne Service et Laboratoire Central d'Hématologie Département d'Oncologie Lausanne Switzerland
| | - T. Menter
- University Hospital Basel Institute of Pathology and Medical Genetics Basel Switzerland
| | - S. Dirnhofer
- University Hospital Basel Institute of Pathology and Medical Genetics Basel Switzerland
| | - S. Gadient
- SAKK Coordinating Center Bern Switzerland
| | | | - C. Driessen
- Kantonsspital St. Gallen Department of Medical Oncology and Hematology St. Gallen Switzerland
| | - C. Renner
- Onkozentrum, Hirslanden & Zürich Zürich Switzerland
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4
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Fehr M, Lang N, Rubio L, Güsewell S, Templeton A, Aeppli S, Tsang R, Hodgson D, Moccia A, Bargetzi M, Caspar C, Brülisauer DMA, Ebnöther M, Fischer N, Prica A, Kukreti V, Ghilardi G, Krasniqi F, Mey UJ, Mingrone W, Novak U, Richter P, Kridel R, Rodin D, Rütti M, Schmidt A, Stenner F, Voegeli M, Zander T, Crump M, Hitz F, Kuruvilla J. PROGNOSTIC FACTORS IN ELDERLY PATIENTS WITH CLASSICAL HODGKIN LYMPHOMA ‐ A JOINT ANALYSIS OF TWO CLINICAL DATABASES. Hematol Oncol 2021. [DOI: 10.1002/hon.113_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- M Fehr
- Cantonal Hospital St. Gallen, Medical Oncology and Haematology St. Gallen Switzerland
| | - N Lang
- Hôpitaux Universitaires Genève, Department of Oncology Genève Switzerland
| | - L Rubio
- Manchester Royal Infirmary, Haematology Manchester UK
| | - S Güsewell
- Cantonal Hospital St. Gallen, Clinical Trials Unit St. Gallen Switzerland
| | - A.J. Templeton
- Claraspital Basel, Oncology and Haematology Basel Switzerland
| | - S Aeppli
- Cantonal Hospital St. Gallen, Medical Oncology and Haematology St. Gallen Switzerland
| | - R Tsang
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - D Hodgson
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - A Moccia
- Oncology Institute of Southern Switzerland, Department of Medical Oncology Bellinzona Switzerland
| | - M Bargetzi
- Cantonal Hospital Aarau, Haematology Aarau Switzerland
| | - C Caspar
- Cantonal Hospital Baden, Oncology und Haematology Baden Switzerland
| | | | - M Ebnöther
- Claraspital Basel, Oncology and Haematology Basel Switzerland
| | - N Fischer
- Cantonal Hospital Winterthur, Medical Oncology and Haematology Winterthur Switzerland
| | - A Prica
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - V Kukreti
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - G Ghilardi
- Oncology Institute of Southern Switzerland, Haematology Bellinzona Switzerland
| | - F Krasniqi
- University Hospital Basel, Oncology Basel Switzerland
| | - U. J Mey
- Cantonal Hospital Grisons, Oncology and Haematology Chur Switzerland
| | - W Mingrone
- Cantonal Hospital Olten, Centre for Oncology Olten Switzerland
| | - U Novak
- University Hospital Bern, Medical Oncology Bern Switzerland
| | - P Richter
- Cantonal Hospital Grisons, Oncology and Haematology Chur Switzerland
| | - R Kridel
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - D Rodin
- Princess Margaret Cancer Centre, Radiation Oncology Toronto Switzerland
| | - M Rütti
- Hospital Wil, Medicine Wil Switzerland
| | - A Schmidt
- Stadtspital Triemli, Medical Oncology und Haematology Zürich Switzerland
| | | | - M Voegeli
- Cantonal Hospital Baselland, Oncology and Haematology Liestal Switzerland
| | - T Zander
- Cantonal Hospital Luzern, Medical Oncology Luzern Switzerland
| | - M Crump
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
| | - F Hitz
- Cantonal Hospital St. Gallen, Medical Oncology and Haematology St. Gallen Switzerland
| | - J Kuruvilla
- Princess Margaret Cancer Centre, Medical Oncology and Haematology Toronto Canada
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5
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Fitzal F, Bolliger M, Dunkler D, Gambone L, Heil J, Riedel F, de Boniface J, André C, Matrai Z, Pukancsik D, Paulinelli R, Ostapenko V, Burneckis A, Ostapenko A, Ostapenko E, Meani F, Harder Y, Bonollo M, Alberti A, Tausch C, Papassotiropoulos B, Helfgott R, Heck D, Fehrer H, Acko M, Schrenk P, Montagna G, Trapp E, Pristauz G, Paliczek C, Blohmer J, Steffen S, Romics L, Morrow E, Lorenz K, Fehr M, Ritter M, Weber W. Retrospective multicenter analysis comparing conventional with oncoplastic breast conservation: oncologic and surgical outcome in women with high risk breast cancer from the OPBC-01/iTOP2 study. Breast 2021. [DOI: 10.1016/s0960-9776(21)00222-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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6
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Moccia AA, Aeppli S, Güsewell S, Bargetzi M, Caspar C, Brülisauer D, Ebnöther M, Fehr M, Fischer N, Ghilardi G, Krasniqi F, Lang N, Mey U, Mingrone W, Novak U, Pfleger C, Richter P, Rütti M, Schmidt A, Stenner F, Voegeli M, Zander T, Zucca E, Hitz F. Clinical characteristics and outcome of patients over 60 years with Hodgkin lymphoma treated in Switzerland. Hematol Oncol 2020; 39:196-204. [PMID: 33300135 DOI: 10.1002/hon.2830] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 12/06/2020] [Indexed: 11/09/2022]
Abstract
Hodgkin lymphoma (HL) in older patients appears to be a different disease compared with younger patients with historically lower survival rates. This is related to a variety of factors, including increased treatment-related toxicity, the presence of comorbidities, and biologic differences. In order to better assess the clinical characteristics, treatment strategies, and outcome of this particular population, we conducted a population-based, retrospective analysis including 269 patients with HL older than 60 years (median age 71 years, range 60-94), treated between 2000 and 2017 in 15 referral centers across Switzerland. Primary endpoints were overall survival (OS), progression-free survival (PFS), and cause-specific survival (CSS). The vast majority of patients were treated with curative intent, either with a combined modality approach (chemotherapy followed by radiation therapy) or with systemic therapy. At a median follow-up of 6.6 years (95% confidence interval [CI], 6.0-7.6), 5-year PFS was 52.2% (95% CI, 46.0-59.2), 5-year OS was 62.5% (95% CI, 56.4-69.2), and 5-year CSS was 85.1.8% (95% CI, 80.3-90.1) for the entire cohort. A significant difference in terms of CSS was observed for patients older than 71 years in comparison to patients aged 60-70 years (hazard ratio 2.6, 1.3-5.0, p = 0.005). Bleomycin-induced lung toxicity (BLT) was documented in 26 patients (17.7%) out of the 147 patients exposed to this compound and was more frequent in patients older than 71 years (15/60, 25%). Outcome of HL pts older than 71 years appeared to decrease substantially in comparison to the younger counterpart. Treatment-related toxicities appeared to be relevant, in particular, BLT. New, potentially less toxic strategies need to be investigated in prospective clinical trials in this particular frail population.
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Affiliation(s)
- A A Moccia
- Medical Oncology Clinic, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - S Aeppli
- Medical Oncology and Hematology Clinic, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - S Güsewell
- Clinical Trials Unit, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - M Bargetzi
- Hematology, Kantonsspital Aarau, Aarau, Switzerland
| | - C Caspar
- Medical Oncology and Hematology, Kantonsspital Baden, Baden, Switzerland
| | - D Brülisauer
- Medical Oncology Clinic, Inselspital, University Hospital of Bern, Bern, Switzerland
| | - M Ebnöther
- Medical Oncology and Hematology, Claraspital, Basel, Switzerland
| | - M Fehr
- Medical Oncology and Hematology Clinic, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - N Fischer
- Medical Oncology and Hematology Clinic, Kantonsspital Winterthur, Winterthur, Switzerland
| | - G Ghilardi
- Hematology Clinic, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - F Krasniqi
- Medical Oncology Clinic, University Hospital of Basel, Basel, Switzerland
| | - N Lang
- Medical Oncology Clinic, University Hospital of Geneva, Genève, Switzerland
| | - U Mey
- Medical Oncology and Hematology, Kantonsspital Graubünden, Chur, Switzerland
| | - W Mingrone
- Medical Oncology Clinic, Kantonsspital Olten, Olten, Switzerland
| | - U Novak
- Medical Oncology Clinic, Inselspital, University Hospital of Bern, Bern, Switzerland
| | - C Pfleger
- Medical Oncology and Hematology, Claraspital, Basel, Switzerland
| | - P Richter
- Medical Oncology and Hematology, Kantonsspital Graubünden, Chur, Switzerland
| | - M Rütti
- Internal Medicine Clinic, Spital Wil, Wil, Switzerland
| | - A Schmidt
- Medical Oncology and Hematology Clinic, Stadtspital Triemli, Zürich, Switzerland
| | - F Stenner
- Medical Oncology Clinic, University Hospital of Basel, Basel, Switzerland
| | - M Voegeli
- Medical Oncology and Hematology Clinic, Kantonsspital Baselland, Liestal, Switzerland
| | - T Zander
- Medical Oncology, Luzerner Kantonsspital, Luzern, Switzerland
| | - E Zucca
- Medical Oncology Clinic, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - F Hitz
- Medical Oncology and Hematology Clinic, Kantonsspital St. Gallen, St. Gallen, Switzerland
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7
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Ossenkoppele GJ, Breems DA, Stuessi G, van Norden Y, Bargetzi M, Biemond BJ, A von dem Borne P, Chalandon Y, Cloos J, Deeren D, Fehr M, Gjertsen B, Graux C, Huls G, Janssen JJJW, Jaspers A, Jongen-Lavrencic M, de Jongh E, Klein SK, van der Klift M, van Marwijk Kooy M, Maertens J, Michaux L, van der Poel MWM, van Rhenen A, Tick L, Valk P, Vekemans MC, van der Velden WJFM, de Weerdt O, Pabst T, Manz M, Löwenberg B. Lenalidomide added to standard intensive treatment for older patients with AML and high-risk MDS. Leukemia 2020; 34:1751-1759. [PMID: 32020044 DOI: 10.1038/s41375-020-0725-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/24/2019] [Accepted: 01/22/2020] [Indexed: 11/09/2022]
Abstract
More effective treatment modalities are urgently needed in patients with acute myeloid leukemia (AML) of older age. We hypothesized that adding lenalidomide to intensive standard chemotherapy might improve their outcome. After establishing a safe lenalidomide, dose elderly patients with AML were randomly assigned in this randomized Phase 2 study (n = 222) to receive standard chemotherapy ("3 + 7") with or without lenalidomide at a dose of 20 mg/day 1-21. In the second cycle, patients received cytarabine 1000 mg/m2 twice daily on days 1-6 with or without lenalidomide (20 mg/day 1-21). The CR/CRi rates in the two arms were not different (69 vs. 66%). Event-free survival (EFS) at 36 months was 19% for the standard arm versus 21% for the lenalidomide arm and overall survival (OS) 35% vs. 30%, respectively. The frequencies and grade of adverse events were not significantly different between the treatment arms. Cardiovascular toxicities were rare and equally distributed between the arms. The results of the present study show that the addition of lenalidomide to standard remission induction chemotherapy does not improve the therapeutic outcome of older AML patients. This trial is registered as number NTR2294 in The NederlandsTrial Register (www.trialregister.nl).
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Affiliation(s)
- G J Ossenkoppele
- Amsterdam University Medical Cente, location VUMC, Amsterdam, Netherlands.
| | | | - G Stuessi
- Bellinzona-IOSI, Bellinzona, Switzerland
| | - Y van Norden
- HOVON Data Center, Erasmus MC- Department of Hematology, Rotterdam, The Netherlands
| | - M Bargetzi
- Aarau- Kantonsspital, Aarau, Switzerland
| | - B J Biemond
- Amsterdam University Medical Center, location AMC, Amsterdam, Netherlands
| | | | - Y Chalandon
- University Hospital and University of Geneva, Genève, Switzerland
| | - J Cloos
- Amsterdam University Medical Cente, location VUMC, Amsterdam, Netherlands
| | - D Deeren
- Roeselare-AZ Delta, Roeselare, Belgium
| | - M Fehr
- St Gallen-Kantonnsspital, St. Gallen, Switzerland
| | - B Gjertsen
- Haukeland University Hospital, Bergen (N), Norway
| | - C Graux
- Yvoir-MontGodinne, Yvoir, Belgium
| | - G Huls
- University Medical Center, Groningen, Netherlands
| | - J J J W Janssen
- Amsterdam University Medical Cente, location VUMC, Amsterdam, Netherlands
| | - A Jaspers
- Hôpital Citadelle, Liège (B), Belgium
| | | | | | - S K Klein
- Meander Medical Center, Amersfoort, Netherlands
| | | | | | - J Maertens
- Hospital Gasthuisberg, Leuven (B), Belgium
| | - L Michaux
- Center for Human Genetics, KU Leuven and University Hospitals Leuven, Leuven, Belgium
| | | | | | - L Tick
- MaximaMC Eindhoven, Eindhoven, Netherlands
| | - P Valk
- Hôpital Citadelle, Liège (B), Belgium
| | | | | | - O de Weerdt
- St Antonius Hospital, Nieuwegein, Netherlands
| | - T Pabst
- Department of Oncology, University Hospital, Inselspital and University of Bern, Bern, Switzerland
| | - M Manz
- University Hospital, Zurich, Switzerland
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8
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Labidi-Galy S, deLa Motte Rouge T, Derbel O, Wolfer A, Kalbacher E, Olivier T, Combes JD, Hu-Heimgartner K, Tredan O, Guevara H, Heinzelmann-Schwarz V, Fehr M, de Castelbajac V, Vaflard P, Crivelli L, Bonadona V, Viassolo V, Bazan F, Rodrigues M, Ray-Coquard I. Clinical factors associated with prolonged response and survival under olaparib as maintenance therapy in BRCA mutated ovarian cancers. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz250.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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9
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von Moos R, Hawle H, Hayoz S, Cathomas R, Müller A, Schmid S, Pagani O, Wehrhahn T, Rauch D, Anchisi S, Hermanns T, Fehr M, Stoll S, Bützberger P, Zweifel M, Huber U, Fuhrer A, Schär C, Gillessen S, Templeton A. Incidence of hypocalcemia in a non-inferiority phase III trial assessing prevention of symptomatic skeletal events (SSE) with denosumab (DN) administered every 4 weeks (q4w) versus every 12 weeks (q12w): SAKK 96/12 (REDUSE). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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10
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Langhann A, Fehr M, Nolte I, Meyer-Lindenberg A. Arthrotomy versus arthroscopy in the treatment of the fragmented medial coronoid process of the ulna (FCP) in 421 dogs. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1632780] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryIn a retrospective trial over eight years 518 joints from 421 dogs with fragmented medial coronoid process of the ulna (FCP) were included. Seventy-five joints had an additional osteochondrosis dissecans of the medial aspect of the humeral condyle. Forty-six point eight percent of the dogs (197/421) were younger than one year. Two hundred and forty-seven joints were treated by conventional arthrotomy and 271 joints were treated by arthroscopy. Two hundred and thirty-eight cases (103 treated by arthrotomy and 135 by arthroscopy) were re-evaluated clinically and radiographically and 191 cases (88 treated by arthrotomy and 103 by arthroscopy) by means of a questionnaire at an average of 23 and 21 months after the operations, respectively. Forty-two point four percent (81/191) of the cases treated by arthrotomy did not show any lameness, 29.3% (56/191) showed temporary lameness after rest or heavy exercise, and 28.3% (54/191) showed constant lameness. The signs of which had, however, been reduced by surgery in 14 of these cases. Sixty point one percent (143/238) of the cases treated by arthroscopy did not show any lameness, 29.4% (70/238) showed temporary lameness after rest or heavy exercise and 10.5% (25/238) showed constant lameness, out of which four cases had improved after surgery. In the cases treated by arthroscopy, the period of convalescence was shorter. Differences between these methods were not observed with respect to the development of subsequent arthrosis. The results of the study show that arthroscopy, with its minimal invasive character, gives better functional results than conventional arthrotomy. However, the development of secondary arthrosis cannot be avoided by either method.
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11
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Merten HA, Bader A, Uhr G, Deivick A, Meyer-Lindenberg A, Fehr M, Hauschild G. Bioartificial bone grafting:Tarsal joint fusion in a dog using a bioartificial composite bone graft consisting of β-tricalciumphosphate and platelet rich plasma – A case report. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1632929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryGrafting of large bone defects caused by trauma or tumor resection still remains a problem to solve. In experimental studies as well as in human dentistry, osteoconduction and biodegradation of the β-tricalciumphosphate Cerasorb® as well as osteoinductive capabilities of platelet rich plasma have been proven. In case of luxation of the right tarsal joint, including a compressive fracture of the forth tarsal bone, the recommended use of autologous cancellous bone to support osseous fusion was replaced by the use of a bioartificial bone graft. Biodegradation of the bone graft was proven clinically and radiographically. Complete osseous fusion of the intertarsal joint occurred. The use of the β-tricalciumphosphate Cerasorb in combination with platelet rich plasma to support a partial arthrodesis of the tarsal joint in a dog did not impede the healing process but led to full recovery of the patient, indicating that this concept of bioartificial bone grafting could support bone healing.
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12
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Heinen V, Fehr M, Nolte I, Meyer-Lindenberg A. Incomplete ossification of the humeral condyle as the cause of lameness in dogs. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1632736] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryIn a retrospective and prospective trial over six years, 17 joints from 13 dogs presented with incomplete ossification of the humeral condyle (IOHC) were included. All dogs showed lameness of the forelimb but no humeral condylar fractures. One dog showed a fracture of the olecranon. Four of the bilaterally affected dogs showed only unilateral lameness. 53.8% of the dogs (7/13) were younger than one year. With regard to breed distribution, the German Wachtel was most frequently represented with three dogs. In 12 dogs the diagnosis was made by radiography in a craniocaudal view, and seven dogs could be further investigated by computed tomography. In one dog the diagnosis was only made during arthroscopy. Two joints showed an additional fragmented medial coronoid process of the ulna and another two an osteochondrosis dissecans of the medial humeral condyle. During arthroscopy, all joints showed a clearly visible fissure line in the joint cartilage between the humeral condyles. In ten joints the I0HC was treated with a transcondylar lag screw under arthroscopic control. Three of the four bilaterally affected dogs were treated only unilaterally because of a lack of lameness on the other side. In the dog with the olecranon fracture, only the fracture was treated. The patients were rechecked clinically and radiologically (n = 10) or by means of a questionnaire (n = 1) at an average of 26 months post operation. Seven cases, six of them treated by lag screw fixation, did not show any lameness. Three joints (one dog with olecranon fracture, two unilaterally affected dogs with lag screw fixation) showed some degree of lameness after heavy strain and one dog showed a continuous slight lameness. The four bilaterally affected and only unilaterally treated dogs showed no lameness on the untreated joint. With regard to development of arthrosis, six radiographically examined joints showed no increase in arthroses. In five joints the increase was mild and in two joints moderate. In six joints with lag screw fixation, the IOHC was radiographically unified and was confirmed by computed tomography in three cases.
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13
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Nessler JN, Attig F, Thöle M, Raddatz B, Beineke A, Fehr M, Tipold A, Stein VM. Cervical myelopathy due to complex Atlanto-axial malformation including partial atlantal dorsal arch aplasia in a domestic rabbit. J Small Anim Pract 2018; 60:384-389. [PMID: 29380380 DOI: 10.1111/jsap.12823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 06/28/2017] [Accepted: 09/15/2017] [Indexed: 11/30/2022]
Abstract
A 1-year-old dwarf rabbit was presented with sub-acute progressive tetraparesis. Radiography, CT and MRI revealed compressive cervical myelopathy secondary to a complex atlanto-axial malformation including partial aplasia of the atlantal dorsal arch, dens malformation, malarticulation and lateral atlanto-occipital displacement. Owners decided against surgical treatment and elected conservative treatment including analgesia with non-steroidal anti-inflammatory drugs, cage rest and physiotherapy. Within 2 months clinical signs deteriorated and the owner elected euthanasia. Subsequent necropsy confirmed imaging findings. Similar cases described in humans and dogs suggest that partial aplasia of the dorsal arch of the atlas might often be an asymptomatic radiologic finding in these species. In contrast, this first description of a similarly affected rabbit demonstrates that complex atlanto-axial malformations can cause severe clinical signs.
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Affiliation(s)
- J N Nessler
- Department of Small Animal Medicine and Surgery, Neurology, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - F Attig
- Institute for Pathology, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - M Thöle
- Clinic for Small Mammals, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - B Raddatz
- Institute for Pathology, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - A Beineke
- Institute for Pathology, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - M Fehr
- Department of Small Animal Medicine and Surgery and Clinic for Small Mammals, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - A Tipold
- Department of Small Animal Medicine and Surgery, Neurology, University of Veterinary Medicine Hannover, 30559, Hannover, Germany
| | - V M Stein
- Vetsuisse-Faculty, Neurology, University of Bern, 3012, Bern, Switzerland
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Imholt KM, Möller S, Fehr M, Meyer-Lindenberg A. Lahmheits- und Osteoarthroseentwicklung nach Tibial Plateau Leveling Osteotomy (TPLO) und potenzielle prognostische Einflussfaktoren. Tierarztl Prax Ausg K 2018. [DOI: 10.1055/s-0038-1623596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Zusammenfassung
Gegenstand: Untersuchung von Lahmheits- und Arthroseentwicklung nach Tibial Plateau Leveling Osteotomy (TPLO) bei Hunden und Evaluierung potenzieller prognostischer Einflussfaktoren. Material und Methoden: Es erfolgte eine retrospektive Auswertung der Patientenakten von 119 Hunden (135 Kniegelenken). Das Therapieergebnis, aktueller Lahmheitsstatus, Arthrosegrad und Arthroseentwicklung wurden anhand der klinischen und röntgenologischen Befunde einer Kontrolluntersuchung sowie durch einen Besitzerfragebogen ausgewertet. Ergebnisse: 58 Hunde (66 Gelenke) konnten klinisch und röntgenologisch, 61 Hunde (69 Gelenke) nur mittels Fragebogen kontrolliert werden. Bis zu 6,8 Jahre nach der TPLO war das Lahmheitsergebnis in 90,4% der Fälle “sehr gut” bis “gut”. Es kam zu einem moderaten Fortschreiten der Arthrose. Patienten mit Totalruptur des vorderen Kreuzbandes wiesen häufiger Meniskusschäden auf als Patienten mit Teilruptur. Patienten, bei denen eine mediale Teilmeniskektomie erfolgte, zeigten häufiger “sehr gute” Langzeitergebnisse und seltener ein Fortschreiten der Arthrose als Hunde, deren Meniskus belassen oder bei denen ein Release durchgeführt wurde. Die Komplikationsrate lag bei 22,2%. Schlussfolgerung und klinische Relevanz: Die klinischen Langzeitergebnisse nach TPLO sind sehr zufriedenstellend. Eine Teilmeniskektomie kann helfen, spätere Meniskusoperationen zu verhindern, ohne das langfristige Lahmheitsergebnis oder die Arthroseentwicklung negativ zu beeinflussen. Durch eine vorangegangene Operation oder postoperative Komplikationen verschlechtert sich weder das langfristige Lahmheitsergebnis noch beschleunigt sich das Fortschreiten der Arthrose.
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15
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Fehr M, Hawle H, Hayoz S, Thuss-Patience P, Schacher S, Riera Knorrenschild J, Dürr D, Knoefel W, Rumpold H, Bitzer M, Zweifel M, Samaras P, Mey U, Winterhalden R, Kueng M, Eisterer W, Hess V, Gerard MA, Stahl M, Ruhstaller T. High thromboembolic event rate in patients with locally advanced esophageal cancer during perioperative therapy: A pre-planned analysis of the intergroup phase III trial SAKK 75/08. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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16
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Warschau M, Hoffmann M, Dziallas P, Hansmann F, Baumgärtner W, Mischke R, Cichowski S, Fehr M. Invasive histiocytic sarcoma of the lumbar spine in a ferret (Mustela putorius furo). J Small Anim Pract 2017; 58:115-118. [PMID: 28160308 DOI: 10.1111/jsap.12632] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 09/04/2015] [Accepted: 12/30/2015] [Indexed: 12/14/2022]
Abstract
This report describes the history, clinical examination and histopathology of a histiocytic sarcoma in a domestic ferret. Clinical signs were acute paraplegia and dysuria. Physical examination revealed a firm, smooth, touch-sensitive mass in and around the lumbar vertebral column. Neurologic examination was consistent with a lesion between spinal cord segments T3 and L3. Magnetic resonance images revealed bone lesions of L2 and L3 combined with compression of the spinal cord due to a homogenous, isointense mass that was diagnosed as a malignant round cell tumour and the ferret was euthanased. Histopathology confirmed the diagnosis of an infiltrative histiocytic sarcoma.
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Affiliation(s)
- M Warschau
- Clinic for Pets, Reptiles and Pet and Feral Birds, University of Veterinary Medicine, D-30559, Hannover, Germany
| | - M Hoffmann
- Small Animal Clinic Neandertal, D-42781, Haan, Germany
| | - P Dziallas
- Small Animal Clinic, University of Veterinary Medicine, D-30559, Hannover, Germany
| | - F Hansmann
- Department of Pathology, University of Veterinary Medicine Hannover, D-30559, Hannover, Germany
| | - W Baumgärtner
- Department of Pathology, University of Veterinary Medicine Hannover, D-30559, Hannover, Germany
| | - R Mischke
- Small Animal Clinic, University of Veterinary Medicine, D-30559, Hannover, Germany
| | - S Cichowski
- Small Animal Practice, D-49201, Dissen, Germany
| | - M Fehr
- Small Animal Clinic, University of Veterinary Medicine, D-30559, Hannover, Germany
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17
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Novak U, Fehr M, Zander T, Winterhalder R, Amram M, Stathis A, Rondeau S, Berardi S, Eckhardt K, Driessen C, Renner C. SAKK 36/13-IBRUTINIB AND BORTEZOMIB FOLLOWED BY IBRUTINIB MAINTENANCE IN PATIENTS WITH RELAPSED AND REFRACTORY MANTLE CELL LYMPHOMA: PHASE I REPORT OF A PHASE I/II TRIAL. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- U. Novak
- Klinik und Poliklinik für Medizinische Onkologie, Inselspital; Universitätsspital Bern; Bern Switzerland
| | - M. Fehr
- Klinik für Onkologie/Hämatologie, Kantonsspital St. Gallen; Bern Switzerland
| | - T. Zander
- Medizinische Onkologie, Luzerner Kantonsspital; Luzern Switzerland
| | - R. Winterhalder
- Medizinische Onkologie, Luzerner Kantonsspital; Luzern Switzerland
| | - M. Amram
- Service d'oncologie, Hôpitaux Universitaires de Genève; Genéve Switzerland
| | - A. Stathis
- Oncology Institute of Southern Switzerland, Ospedale Regionale di Bellinzona e Valli; Bellinzona Switzerland
| | - S. Rondeau
- Statistics, SAKK Coordinating Center; Bern Switzerland
| | - S. Berardi
- Clinical Project Management / Innovation and Development, SAKK Coordinating Center; Bern Switzerland
| | - K. Eckhardt
- Clinical Project Management / Innovation and Development, SAKK Coordinating Center; Bern Switzerland
| | - C. Driessen
- Klinik für Onkologie/Hämatologie, Kantonsspital St. Gallen; Bern Switzerland
| | - C. Renner
- Onkozentrum Hirslanden, Klinik Hirslanden; Zürich Switzerland
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Lebens M, Länger B, Günther P, Fehr M, Mathes KA. Textile foreign body in a Green Iguana (Iguana iguana): Diagnostic imaging for localisation. SCHWEIZ ARCH TIERH 2017; 158:759-763. [PMID: 27821380 DOI: 10.17236/sat00093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION This case report includes different diagnostic imaging methods for localization of textile foreign bodies in reptiles and shows the limitations and advantages of these methods. A six-year-old, male, green iguana was presented to our clinic after ingesting a sock 5 days earlier. Ultrasound, contrast x-ray, computed tomography and endoscopy were used to locate the foreign body before surgery. Attempts to remove the sock endoscopically failed. The sock was surgically removed via celiotomy and enterotomy.
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Affiliation(s)
- M Lebens
- Clinic for Pets, Reptiles and Birds, University of Veterinary Medicine Hannover, Germany
| | - B Länger
- Clinic for Small Animals, University of Veterinary Medicine Hannover, Germany
| | - P Günther
- Clinic for Pets, Reptiles and Birds, University of Veterinary Medicine Hannover, Germany
| | - M Fehr
- Clinic for Pets, Reptiles and Birds, University of Veterinary Medicine Hannover, Germany.,Clinic for Small Animals, University of Veterinary Medicine Hannover, Germany
| | - K A Mathes
- Clinic for Pets, Reptiles and Birds, University of Veterinary Medicine Hannover, Germany
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19
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Fehr M, Reichegger H, Maranta AF, Gillessen S, Cathomas R. Carboplatin dose based on actual renal function vs. dose capping: no excess of hematotoxicity in treatment of seminoma stage I. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw373.62] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Nolff MC, Reese S, Fehr M, Dening R, Meyer-Lindenberg A. Assessment of wound bio-burden and prevalence of multi-drug resistant bacteria during open wound management. J Small Anim Pract 2016; 57:255-9. [DOI: 10.1111/jsap.12476] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 12/11/2015] [Accepted: 01/22/2016] [Indexed: 01/28/2023]
Affiliation(s)
- M. C. Nolff
- Clinic for Small Animal Surgery and Reproduction; Ludwig-Maximilians-University; Veterinärstrasse 13 Munich 80539 Germany
| | - S. Reese
- Department for Basic Veterinary Sciences; Ludwig-Maximilians-University; Professor-Huber-Platz 2 Munich 80539 Germany
| | - M. Fehr
- Small Animal Clinic; University of Veterinary Medicine of Hannover; Bünteweg 2 30559 Hannover Germany
| | - R. Dening
- Small Animal Clinic; University of Veterinary Medicine of Hannover; Bünteweg 2 30559 Hannover Germany
| | - A. Meyer-Lindenberg
- Clinic for Small Animal Surgery and Reproduction; Ludwig-Maximilians-University; Veterinärstrasse 13 Munich 80539 Germany
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21
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Neis KJ, Zubke W, Römer T, Schwerdtfeger K, Schollmeyer T, Rimbach S, Holthaus B, Solomayer E, Bojahr B, Neis F, Reisenauer C, Gabriel B, Dieterich H, Runnenbaum IB, Kleine W, Strauss A, Menton M, Mylonas I, David M, Horn LC, Schmidt D, Gaß P, Teichmann AT, Brandner P, Stummvoll W, Kuhn A, Müller M, Fehr M, Tamussino K. Indications and Route of Hysterectomy for Benign Diseases. Guideline of the DGGG, OEGGG and SGGG (S3 Level, AWMF Registry No. 015/070, April 2015). Geburtshilfe Frauenheilkd 2016; 76:350-364. [PMID: 27667852 PMCID: PMC5031283 DOI: 10.1055/s-0042-104288] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: Official guideline "indications and methods of hysterectomy" to assign indications for the different methods published and coordinated by the German Society of Gynecology and Obstetrics (DGGG), the Austrian Society of Gynecology and Obstetrics (OEGGG) and the Swiss Society of Gynecology and Obstetrics (SGGG). Besides vaginal and abdominal hysterectomy, three additional techniques have been implemented due to the introduction of laparoscopy. Organ-sparing alternatives were also integrated. Methods: The guideline group consisted of 26 experts from Germany, Austria and Switzerland. Recommendations were developed using a structured consensus process and independent moderation. A systematic literature search and quality appraisal of benefits and harms of the therapeutic alternatives for symptomatic fibroids, dysfunctional bleeding and adenomyosis was done through MEDLINE up to 6/2014 focusing on systematic reviews and meta-analysis. Results: All types of hysterectomy led in studies to high rates of patient satisfaction. If possible, vaginal instead of abdominal hysterectomy should preferably be done. If a vaginal hysterectomy is not feasible, the possibility of a laparoscopic hysterectomy should be considered. An abdominal hysterectomy should only be done with a special indication. Organ-sparing interventions also led to high patient satisfaction rates, but contain the risk of symptom recurrence. Conclusion: As an aim, patients should be enabled to choose that therapeutic intervention for their benign disease of the uterus that convenes best to them and their personal life situation.
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Affiliation(s)
- K. J. Neis
- Klinik für Frauenheilkunde, Geburtshilfe und Reproduktionsmedizin der Universitätsklinik des Saarlandes
| | - W. Zubke
- Frauenklinik des Universitätsklinikum Tübingen
| | - T. Römer
- Evangelisches Krankenhaus Köln-Weyertal
| | | | - T. Schollmeyer
- Klinik für Gynäkologie und Geburtshilfe Universitätsklinikum Schleswig-Holstein
| | - S. Rimbach
- Klinik für Gynäkologie und Geburtshilfe Krankenhaus Agatharied GmbH
| | - B. Holthaus
- Klinik für Frauenheilkunde und Geburtshilfe St. Elisabeth Krankenhaus Damme
| | - E. Solomayer
- Klinik für Frauenheilkunde, Geburtshilfe und Reproduktionsmedizin der Universitätsklinik des Saarlandes
| | - B. Bojahr
- Klinik für MIC Minimal Invasive Chirurgie am Ev. Krankenhaus Hubertus in Berlin
| | - F. Neis
- Frauenklinik des Universitätsklinikum Tübingen
| | | | - B. Gabriel
- Klinik für Gynäkologie und Geburtshilfe St. Josefs-Hospital Wiesbaden
| | | | - I. B. Runnenbaum
- Universitätsklinikum Jena Klinik für Frauenheilkunde und Geburtshilfe
| | - W. Kleine
- Universitätsklinikum Mannheim Klink für Frauenheilkunde und Geburtshilfe
| | - A. Strauss
- Klinik für Gynäkologie und Geburtshilfe Christian-Albrechts-Universität zu Kiel
| | | | - I. Mylonas
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe Klinikum der Universität München
| | - M. David
- Campus Virchow-Klinikum Charité Klinik für Gynäkologie
| | - L-C. Horn
- Institut für Pathologie Universitätsklinikum Leipzig
| | | | - P. Gaß
- Universitätsklinikum Erlangen Frauenklinik
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Chau C, Cathomas R, Wheater M, Klingbiel D, Fehr M, Bennett J, Markham H, Lee C, Crabb S, Geldart T. Treatment outcome and patterns of relapse following adjuvant carboplatin for stage I testicular seminomatous germ-cell tumour: results from a 17-year UK experience. Ann Oncol 2015; 26:1865-1870. [DOI: 10.1093/annonc/mdv254] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 05/22/2015] [Indexed: 11/14/2022] Open
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Akhtar W, Schnegg A, Veber S, Meier C, Fehr M, Lips K. CW and pulsed electrically detected magnetic resonance spectroscopy at 263GHz/12T on operating amorphous silicon solar cells. J Magn Reson 2015; 257:94-101. [PMID: 26112328 DOI: 10.1016/j.jmr.2015.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 05/29/2015] [Accepted: 05/30/2015] [Indexed: 06/04/2023]
Abstract
Here we describe a new high frequency/high field continuous wave and pulsed electrically detected magnetic resonance (CW EDMR and pEDMR) setup, operating at 263GHz and resonance fields between 0 and 12T. Spin dependent transport in illuminated hydrogenated amorphous silicon p-i-n solar cells at 5K and 90K was studied by in operando 263GHz CW and pEDMR alongside complementary X-band CW EDMR. Benefiting from the superior resolution at 263GHz, we were able to better resolve EDMR signals originating from spin dependent hopping and recombination processes. 5K EDMR spectra were found to be dominated by conduction and valence band tail states involved in spin dependent hopping, with additional contributions from triplet exciton states. 90K EDMR spectra could be assigned to spin pair recombination involving conduction band tail states and dangling bonds as the dominating spin dependent transport process, with additional contributions from valence band tail and triplet exciton states.
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Affiliation(s)
- W Akhtar
- Berlin Joint EPR Lab, Institut für Silizium-Photovoltaik, Helmholtz Zentrum Berlin für Materialien und Energie, Germany.
| | - A Schnegg
- Berlin Joint EPR Lab, Institut für Silizium-Photovoltaik, Helmholtz Zentrum Berlin für Materialien und Energie, Germany.
| | - S Veber
- Laboratory of Magnetic Resonance, International Tomography Center SB RAS, Russia; Novosibirsk State University, Russia
| | - C Meier
- Berlin Joint EPR Lab, Fachbereich Physik, Freie Universität Berlin, Germany
| | - M Fehr
- Berlin Joint EPR Lab, Institut für Silizium-Photovoltaik, Helmholtz Zentrum Berlin für Materialien und Energie, Germany
| | - K Lips
- Berlin Joint EPR Lab, Institut für Silizium-Photovoltaik, Helmholtz Zentrum Berlin für Materialien und Energie, Germany
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24
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Prütz M, Hungerbühler S, Laß M, Fehr M, Günther P, Mathes K. Contrast echocardiography for analysis of heart anatomy in tortoises. Tierarztl Prax Ausg K Kleintiere Heimtiere 2015; 43:231-7. [PMID: 26105200 DOI: 10.15654/tpk-140152] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 01/29/2015] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The cardiac anatomy in tortoises depicted on B-mode and color-Doppler should be better differentiated by additional contrast-echocardiography. MATERIAL AND METHODS An intravenous contrast agent (INN-sulphur hexafluoride [SonoVue®]) was injected in four tortoises (three Testudo hermanni, one Agrionemys horsfieldii), via the coccygeal vein, with parallel B-mode echocardiographic examination. The results of the contrast-enhanced echocardiography were compared with the contrast-free B-mode recordings and color-Doppler ultrasound. RESULTS The use of SonoVue® enabled clearer distinction of the cardiac structures, differentiation of the arising major arteries, identification of wash-out-shunts, and visualization of blood flow patterns throughout the tortoise heart. CONCLUSION AND CLINICAL RELEVANCE This study enables the accurate depiction and differentiation of cardiac anatomy in tortoises through the use of a combination of B-mode, color-Doppler and contrast-echocardiography. Basic knowledge of blood flow in the reptile heart is essential to understand echocardiographic anatomy. Blood-flow-patterns and anatomy of the tortoise heart as found in this study will help to establish a basis for further echocardiographic examinations of these animals.
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Affiliation(s)
- M Prütz
- Dr. Maike Prütz, Clinic for Pets, Reptiles, Pet and Feral Birds, University of Veterinary Medicine Hannover, Bünteweg 9, 30559 Hannover, Germany, E-Mail:
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25
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Chau C, Wheater M, Fehr M, Bennett J, Lee C, Crabb S, Cathomas R, Geldart T. Treatment Outcome and Patterns of Relapse Following Adjuvant Carboplatin for Stage 1 Seminoma: Results from a 17 Year Uk Experience. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu337.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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26
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Fehr M, Müller J, Horber D, Köberle D, Cerny T, Gueller U. Relevant Upstaging of Pn2 Cm0 Colorectal Cancer Patients with Post-Surgery 18F-Fdg Pet-Ct. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Fehr M. The management challenge for household waste in emerging economies like Brazil: realistic source separation and activation of reverse logistics. Waste Manag Res 2014; 32:32-39. [PMID: 24990590 DOI: 10.1177/0734242x14541985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Business opportunities in the household waste sector in emerging economies still evolve around the activities of bulk collection and tipping with an open material balance. This research, conducted in Brazil, pursued the objective of shifting opportunities from tipping to reverse logistics in order to close the balance. To do this, it illustrated how specific knowledge of sorted waste composition and reverse logistics operations can be used to determine realistic temporal and quantitative landfill diversion targets in an emerging economy context. Experimentation constructed and confirmed the recycling trilogy that consists of source separation, collection infrastructure and reverse logistics. The study on source separation demonstrated the vital difference between raw and sorted waste compositions. Raw waste contained 70% biodegradable and 30% inert matter. Source separation produced 47% biodegradable, 20% inert and 33% mixed material. The study on collection infrastructure developed the necessary receiving facilities. The study on reverse logistics identified private operators capable of collecting and processing all separated inert items. Recycling activities for biodegradable material were scarce and erratic. Only farmers would take the material as animal feed. No composting initiatives existed. The management challenge was identified as stimulating these activities in order to complete the trilogy and divert the 47% source-separated biodegradable discards from the landfills.
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Affiliation(s)
- M Fehr
- Institute of Geography, Federal University, Uberlândia, Brazil
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28
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Cathomas R, Klingbiel D, Geldart T, Mead G, Ellis S, Wheater M, Simmonds P, Nagaraj N, von Moos R, Fehr M. Relevant risk of carboplatin underdosing in cancer patients with normal renal function using estimated GFR: lessons from a stage I seminoma cohort. Ann Oncol 2014; 25:1591-7. [DOI: 10.1093/annonc/mdu129] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Fehr M, Schnegg A, Rech B, Astakhov O, Finger F, Bittl R, Teutloff C, Lips K. Metastable defect formation at microvoids identified as a source of light-induced degradation in a-Si:H. Phys Rev Lett 2014; 112:066403. [PMID: 24580698 DOI: 10.1103/physrevlett.112.066403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Indexed: 06/03/2023]
Abstract
Light-induced degradation of hydrogenated amorphous silicon (a-Si:H), known as the Staebler-Wronski effect, has been studied by time-domain pulsed electron-paramagnetic resonance. Electron-spin echo relaxation measurements in the annealed and light-soaked state revealed two types of defects (termed type I and II), which can be discerned by their electron-spin echo relaxation. Type I exhibits a monoexponential decay related to indirect flip-flop processes between dipolar coupled electron spins in defect clusters, while the phase relaxation of type II is dominated by 1H nuclear spin dynamics and is indicative for isolated spins. We propose that defects are either located at internal surfaces of microvoids (type I) or are isolated and uniformly distributed in the bulk (type II). The concentration of both defect type I and II is significantly higher in the light-soaked state compared to the annealed state. Our results indicate that in addition to isolated defects, defects on internal surfaces of microvoids play a role in light-induced degradation of device-quality a-Si:H.
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Affiliation(s)
- M Fehr
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institut für Silizium-Photovoltaik, Kekuléstr. 5, 12489 Berlin, Germany
| | - A Schnegg
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institut für Silizium-Photovoltaik, Kekuléstr. 5, 12489 Berlin, Germany
| | - B Rech
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institut für Silizium-Photovoltaik, Kekuléstr. 5, 12489 Berlin, Germany
| | - O Astakhov
- Forschungszentrum Jülich, Institut für Energie- und Klimaforschung, Photovoltaik, 52425 Jülich, Germany
| | - F Finger
- Forschungszentrum Jülich, Institut für Energie- und Klimaforschung, Photovoltaik, 52425 Jülich, Germany
| | - R Bittl
- Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
| | - C Teutloff
- Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
| | - K Lips
- Helmholtz-Zentrum Berlin für Materialien und Energie, Institut für Silizium-Photovoltaik, Kekuléstr. 5, 12489 Berlin, Germany
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Schenk HC, Haastert-Talini K, Jungnickel J, Grothe C, Meyer H, Rehage J, Fehr M, Bokemeyer J, Rohn C, Tipold A. Morphometric parameters of peripheral nerves in calves correlated with conduction velocity. J Vet Intern Med 2014; 28:646-55. [PMID: 24417498 PMCID: PMC4857965 DOI: 10.1111/jvim.12271] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 09/21/2013] [Accepted: 11/06/2013] [Indexed: 12/04/2022] Open
Abstract
Background Peripheral nerve injuries are the most frequent neurologic disorder in cattle. So far, no physiologic values have been established for the motor nerve conduction velocity (mNCV) in this precocial species. Objectives The electrophysiologic and morphometric reference values of peripheral nerves in calves were determined. It was hypothesized that these parameters would correlate to the high degree of maturity in the first days of life in this species compared to other species. Animals Twenty‐six healthy calves were used in this study. Methods The mNCV of the radial and the sciatic/common peroneal nerve was measured in all 26 calves. Nerve biopsies from a group of 6 calves were taken to correlate the obtained electrophysiologic data with morphological parameters. Results The mean mNCV of the radial nerve was 48.3 ± 10.6 m/s, whereas the mean mNCV of the sciatic/peroneal nerve was with 83.8 ± 5.9 m/s significantly faster (P < .0001). The average fiber diameter was 8.40 ± 2.80 μm (range, 1.98–17.90 μm) and the average g‐ratio was 0.61 ± 0.04 SD. Conclusion and Clinical Importance The established reference values for mNCV in calves correlate well with the evaluated morphometric parameters. Attributable to their comparably fast mNCV and high fiber diameters, juvenile calves appear to be much more mature individuals than other mammals. Electrophysiologic characterization of peripheral nerve injury now is feasible in this species.
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Affiliation(s)
- H C Schenk
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine, Hannover, Germany; Center for Systems Neuroscience (ZSN), Hannover, Germany
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Nolff MC, Puff C, Länger B, Fehr M. Feline osteochondromatosis in a FELV-negative European shorthair cat. Tierarztl Prax Ausg K Kleintiere Heimtiere 2014; 42:55-59. [PMID: 24518948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 02/26/2013] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To report palliative treatment in a case of multifocal feline osteochondromatosis in a feline leukaemia virus (FeLV) negative European shorthair cat. CASE A 6-year-old spayed female European shorthair cat was presented because of a right forelimb lameness caused by an osteochondromatous lesion which had trapped tendons, vessels and nerves of the antebrachium. Several other lesions were present which did not cause the animal discomfort. The cat was tested negative for FeLV. Palliative surgical removal of the mass was performed, resulting in a marked improvement of mobility with no local recurrence. The cat developed a non-regenerative anaemia after surgery, however the underlying cause was not identified upon request of the owner. Overall survival after surgery was only 2 months. The cat was then euthanised due to severe progression of the anaemia. CONCLUSION Palliative surgical removal of osteochondromas may result in local improvement. However, owners need to be aware that it does not increase overall survival and that the prognosis is poor. Infection with FeLV is not necessarily associated with such lesions.
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Affiliation(s)
- M C Nolff
- Dr. Mirja Christine Nolff, Chirurgische und Gynäkologische Kleintierklinik, Ludwig-Maximilians-Universität München, Veterinärstraße 13, 80539 München, Germany,
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Stöppeler S, Palmes D, Fehr M, Hölzen JP, Zibert A, Siaj R, Schmidt HHJ, Spiegel HU, Bahde R. Gender and strain-specific differences in the development of steatosis in rats. Lab Anim 2013; 47:43-52. [PMID: 23467489 DOI: 10.1177/0023677212473717] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a common problem with a wide variety of phenotypes. While its pathogenesis is still not fully understood, several risk factors for disease progression have been identified. Therefore, defining adequate animal models may serve to unreveal the pathogenesis in NAFLD. We studied Lewis and Sprague-Dawley rats of both genders (n = 6) fed standard (Std) or high-fat (HF) diet for three weeks. Disease stage was assessed by haematoxylin-eosin, Azan Heidenheim and Oil-Red staining, apoptosis by single-stranded DNA (ssDNA) detection and liver regeneration by Ki-67 staining. Serum markers of liver injury and lipid metabolism including adipocytokines were analysed. Livers of both strains and genders fed with HF diet demonstrated evidence of steatosis. Lewis rats developed microvesicular steatosis whereas Sprague-Dawley rats presented macrovesicular steatosis accompanied by pronounced fibrosis. Female gender of both strains was associated with lower steatosis grade and higher proliferation rate (P < 0.05). Gender-specific differences were most prominent in Lewis rats on a HF diet, where females showed lower alkaline phosphatase, cholesterol, triglyceride and leptin levels and a more favourable low-density lipoprotein/high-density lipoprotein ratio than males (P < 0.05). Reverse transcriptase-polymerase chain reaction analysis was performed to demonstrate changes in expression of various genes important for liver regeneration, fibrosis and steatosis. HF diet induced downregulation of proangiogenic genes such as vascular endothelial growth factor receptor 1 and 2 (P < 0.05) in males was not present in females. In conclusion, strain and gender served major roles in disease progression. These differences should be considered when designing studies and may offer new ways to advance therapeutic strategies.
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Affiliation(s)
- S Stöppeler
- Surgical Research, Department of General and Visceral Surgery, Muenster University Hospital, Muenster, Germany
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Tiessen C, Gehrke H, Kropat C, Schwarz C, Bächler S, Fehr M, Pahlke G, Marko D. Role of topoisomerase inhibition and DNA repair mechanisms in the genotoxicity of alternariol and altertoxin-II. WORLD MYCOTOXIN J 2013. [DOI: 10.3920/wmj2013.1592] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Alternariol (AOH) and altertoxin-II (ALTX-II) have been demonstrated to possess genotoxic properties. However, the underlying mechanisms of action have not been fully elucidated yet. AOH has recently been shown to act as a topoisomerase I and II poison, contributing to its genotoxic properties. The topoisomerase-specific repair factor tyrosyl-DNA-phosphodiesterase-1 (TDP1) is involved in the respective repair processes of damaged DNA induced by topoisomerase II poison. In the present study, we investigated the role of DNA repair pathways for the extent of DNA damage by AOH and addressed the question whether interference with topoisomerase II might play a role in the genotoxicity of ALTX-II. Under cell-free conditions, AOH and ALTX-II suppressed the activity of topoisomerase II at a comparable concentration range. In HT29 cells, AOH enhanced the level of covalent DNA-topoisomerase II complexes, thus acting as a topoisomerase poison in DNA damaging concentrations. In contrast, ALTX-II in genotoxic concentrations did not show any effect on the stability of these complexes, indicating that interference with topoisomerases does not play a relevant role in genotoxicity. The differences in genotoxic mechanisms seem to be reflected in the activation of p53. AOH was found to increase p53 phosphorylation in HT29 cells in DNA damaging concentrations. In contrast, incubation with ALTX-II did not affect p53 phosphorylation despite substantial increase in tail intensity in the comet assay, suggesting that the DNA lesions formed by ALTX-II are not detected by the DNA-repair machinery of HT29 cells. These results are supported by differences in persistence of DNA damage, still maintained after 24 h for ALTX-II but nearly vanished already after 3 h for AOH. Furthermore, microarray and qPCR analysis did not indicate any substantial impact of AOH on the transcription of key elements of DNA repair pathways. However, siRNA-approaches indicate that, in addition to TDP1, the expression of other elements of the DNA repair machinery exemplified by the 70 kDa Ku autoantigen and the proliferating cell nuclear antigen are relevant for AOH-mediated DNA damage.
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Affiliation(s)
- C. Tiessen
- Department of Food Chemistry and Toxicology, University of Vienna, Waehringer Str. 38, 1090 Vienna, Austria
| | - H. Gehrke
- Department of Food Chemistry and Toxicology, University of Vienna, Waehringer Str. 38, 1090 Vienna, Austria
| | - C. Kropat
- Department of Food Chemistry and Toxicology, University of Vienna, Waehringer Str. 38, 1090 Vienna, Austria
| | - C. Schwarz
- Department of Food Chemistry and Toxicology, University of Vienna, Waehringer Str. 38, 1090 Vienna, Austria
| | - S. Bächler
- Department of Food Chemistry and Toxicology, University of Vienna, Waehringer Str. 38, 1090 Vienna, Austria
| | - M. Fehr
- Institute of Applied Biosciences, Section of Food Toxicology, Karlsruher Institut für Technologie, Adenauerring 20, 76131 Karlsruhe, Germany
| | - G. Pahlke
- Department of Food Chemistry and Toxicology, University of Vienna, Waehringer Str. 38, 1090 Vienna, Austria
| | - D. Marko
- Department of Food Chemistry and Toxicology, University of Vienna, Waehringer Str. 38, 1090 Vienna, Austria
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George BM, Behrends J, Schnegg A, Schulze TF, Fehr M, Korte L, Rech B, Lips K, Rohrmüller M, Rauls E, Schmidt WG, Gerstmann U. Atomic structure of interface states in silicon heterojunction solar cells. Phys Rev Lett 2013; 110:136803. [PMID: 23581355 DOI: 10.1103/physrevlett.110.136803] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Indexed: 06/02/2023]
Abstract
Combining orientation dependent electrically detected magnetic resonance and g tensor calculations based on density functional theory we assign microscopic structures to paramagnetic states involved in spin-dependent recombination at the interface of hydrogenated amorphous silicon crystalline silicon (a-Si:H/c-Si) heterojunction solar cells. We find that (i) the interface exhibits microscopic roughness, (ii) the electronic structure of the interface defects is mainly determined by c-Si, (iii) we identify the microscopic origin of the conduction band tail state in the a-Si:H layer, and (iv) present a detailed recombination mechanism.
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Affiliation(s)
- B M George
- Institut für Silizium-Photovoltaik, Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstraße 5, D-12489 Berlin, Germany
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Günther P, Wohlsein P, Junginger J, Dziallas P, Fehr M, Mathes K. [Myocardiosis in a 6-month-old Lawson's Dragon (Pogona henrylawsonii)]. Tierarztl Prax Ausg K Kleintiere Heimtiere 2013; 41:191-197. [PMID: 23765364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 09/16/2012] [Indexed: 06/02/2023]
Abstract
In a 6-month-old, chronically inappetent Lawsons's Dragon (Pogona henrylawsonii) with stunted growth a hyperdense cardiac region was found using radiology and computed tomography. At necropsy a profound necrosis of the myocardium with dystrophic calcification was diagnosed. In contrast to the frequently seen metastatic mineralisation of soft tissues, mainly due to poor husbandry, primary tissue destruction is the cause for dystrophic calcification. In reptiles, this is a rarely described form of calcification. Possible causes are infectious processes, nutritional or metabolic insufficiencies, intoxications or genetic components. In the presented case the aetiology could not be determined. In conclusion, dystrophic calcifications should be considered as a differential diagnosis in reptiles with soft tissue mineralisation.
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Affiliation(s)
- P Günther
- Klinik für Heimtiere, Reptilien, Zier- und Wildvögel, Stiftung Tierärztliche Hochschule Hannover, Bünteweg 9, 30559 Hannover.
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Graf N, Rufibach K, Schmidt AM, Fehr M, Fink D, Baege AC. Frequency and risk factors of lower limb lymphedema following lymphadenectomy in patients with gynecological malignancies. EUR J GYNAECOL ONCOL 2013; 34:23-27. [PMID: 23589994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE Lower limb lymphedema (LLL) is a major cause of morbidity in patients with gynecological malignancies after surgical treatment involving lymph node (LN) dissection. The aim of this study was to estimate the prevalence of LLL in such patients and detect risk factors for its occurrence. MATERIALS AND METHODS A retrospective analysis of all patients undergoing lymphadenectomy in newly-diagnosed gynecological malignancies at the University Hospital of Zurich between 2000 and 2007 was performed. Data from 313 patients were collected. Twenty patients with pre-existing edema or missing information were excluded before analysis. Time-to-LLL was estimated using the Kaplan-Meier estimate and potential risk factors were evaluated by a Cox regression model. RESULTS Estimated prevalence of LLL one year after surgery was 32%, increasing to 58% eight years after surgery. Median time to diagnosis of LLL was 5.2 years. The number of removed lymph nodes was significantly associated with time-to-LLL. Diagnosis of postoperative lymphocysts and local infections were accompanied by a significantly elevated risk for the development of LLL. Furthermore, time-to-LLL decreased with a higher body mass index (BMI) of the patient. In contrast, chemo- and radiotherapy, age, positive LNs, site of lymphadenectomy, and type of cancer were not observed to be associated with the occurrence of LLL. CONCLUSIONS LLL is a frequent postoperative complication in patients undergoing lymphadenectomy for gynecological malignancies. It is thus imperative to sufficiently educate patients about the risk and symptoms of LLL prior to surgery. The data clearly show an association between time-to-LLL and number of dissected LNs, stressing the need to prospectively analyze the prevalence of LLL and carefully plan LN sampling as increasing knowledge is gained regarding the therapeutic benefit of sentinel and systemic lymphadenectomy in patients with different stages of gynecological malignancies.
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Affiliation(s)
- N Graf
- Department of Gynecology, University Hospital of Zurich, Zurich
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Schagemann JC, Paul S, Casper ME, Rohwedel J, Kramer J, Kaps C, Mittelstaedt H, Fehr M, Reinholz GG. Chondrogenic differentiation of bone marrow-derived mesenchymal stromal cells via biomimetic and bioactive poly-ε-caprolactone scaffolds. J Biomed Mater Res A 2012. [DOI: 10.1002/jbm.a.34457] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Abstract
Four case reports describing our experience with clinical course and management of paclitaxel extravasation are presented. Local reactions included swelling, mild pain, erythema, induration and hyperpigmentation, but no ulceration. Two patients were treated with cooling only while two further patients received additional hyaluronidase injections subcutaneously. The latter patients suffered longer from symptoms. Local reaction resolved within two weeks and paclitaxel treatment was continued in 3 of 4 patients without further complications. Overall, paclitaxel extravasation induced only mild soft tissue reaction and cooling should be considered standard treatment.
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Affiliation(s)
- A Dubois
- UNIV ZURICH HOSP,DEPT GYNECOL & OBSTET,CH-8090 ZURICH,SWITZERLAND. BRISTOL MYERS SQUIBB,D-80632 MUNICH,GERMANY
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Kasten P, Beverungen M, Lorenz H, Wieland J, Fehr M, Geiger F. Comparison of platelet-rich plasma and VEGF-transfected mesenchymal stem cells on vascularization and bone formation in a critical-size bone defect. Cells Tissues Organs 2012; 196:523-33. [PMID: 22796828 DOI: 10.1159/000337490] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2012] [Indexed: 12/27/2022] Open
Abstract
Both platelet-rich plasma (PRP) and vascular endothelial growth factor (VEGF) can promote regeneration. The aim of this study was to compare the effects of these two elements on bone formation and vascularization in combination with bone marrow stromal cells (BMSC) in a critical-size bone defect in rabbits. The critical-size defects of the radius were filled with: (1) a calcium-deficient hydroxyapatite (CDHA) scaffold + phVEGF(165)-transfected BMSC (VEGF group), (2) CDHA and PRP, or (3) CDHA, autogenous BMSC, and PRP. As controls served: (4) the CDHA scaffold alone and (5) the CDHA scaffold and autogenous BMSC. The volume of new bone was measured by means of micro-CT scans, and vascularization was assessed in histology after 16 weeks. Bone formation was higher in the PRP + CDHA, BMSC + CDHA, and PRP + BMSC + CDHA groups than in the VEGF group (p < 0.05). VEGF transfection significantly promoted vascularization of the scaffolds in contrast to BMSC and PRP (p < 0.05), but was similar to the result of the CDHA + PRP + BMSC group. The results show that VEGF-transfected BMSC as well as the combination of PRP and BMSC improve vascularization, but bone healing was better with the combination of BMSC and PRP than with VEGF-transfected BMSC. Expression of VEGF in BMSC as a single growth factor does not seem to be as effective for bone formation as expanded BMSC alone or PRP which contains a mixture of growth factors.
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Affiliation(s)
- P Kasten
- Division of Experimental Orthopaedics, Orthopaedic University Hospital of Heidelberg, Heidelberg, Germany
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Rentmeister K, Bilzer T, Petri S, Schanen G, Fehr M, Distl O, Tipold A. Hereditary polyneuropathy in the Alaskan Malamute. Tierarztl Prax Ausg K Kleintiere Heimtiere 2012; 40:26-34. [PMID: 22331326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Accepted: 12/16/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To prove the hypothesis that a polyneuropathy in Alaskan Malamutes has a genetic background. MATERIAL AND METHODS Pedigrees of 131 related Alaskan Malamutes were included in the current study. Neurological examination, electrodiagnosis as well as muscle and nerve biopsies could be performed in 10 dogs. Information about the disease status of the other 121 Alaskan Malamutes were supplied by referring veterinarians, breeders and owners. Segregation analysis using four different models (monogenic, polygenic, mixed monogenic-polygenic and the phenotypic model) was performed on 71 dogs to test the different mechanisms of genetic transmission. RESULTS In seven clinically affected dogs abnormal electromyographic findings and reduced nerve conduction velocity were detected. Suspected diagnosis of polyneuropathy was confirmed by nerve biopsy results, characterized by axonal degeneration and hypomyelination. Muscle specimens revealed signs of neurogenic myopathy. Three related clinically normal Alaskan Malamutes also displayed moderate neuromuscular changes in histopathology. In the segregation analysis the polygenic model proved as best suitable to explain the observed segregation pattern among all other models tested. CONCLUSION The current study could demonstrate that polyneuropathy in Alaskan Malamutes is a hereditary disease with variable phenotypic expression ranging from severely affected to subclinical forms, which has to be considered in future gene analysis studies.
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Affiliation(s)
- K Rentmeister
- Tierärztliche Praxis für Neurologie, Mainfrankenpark 16b, 97337 Dettelbach.
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Reinhart WH, Fehr M, von Moos R. Reply to the letter to the editor "Assessing the role of platelet activation in bevacizumab associated thrombosis". Swiss Med Wkly 2011. [DOI: 10.4414/smw.2011.13279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Abstract
Systemic treatment with bevacizumab is associated with increased rates of arterial and venous thromboembolism and haemorrhage. In order to investigate the pathophysiological mechanism involved, platelet adhesive and aggregatory functions were tested with a platelet function analyser (PFA-100®) in an in vitro study and in a longitudinal clinical observation study. For the in vitro study, blood from ten healthy volunteers was incubated with different concentrations of bevacizumab (0-1000 μg/ml plasma) and vascular endothelial growth factor (0-500 μg/ml). In the clinical observation study, PFA-100® closure times (CTs) and soluble P-selectin (sP-selectin) serum levels as a serological marker of platelet activation were assessed in 20 patients with metastatic cancer who were treated with bevacizumab in addition to cytotoxic chemotherapy. No significant changes of PFA-100® CTs were observed in the in vitro study. In the clinical observation study, mean PFA-100® CTs after treatment with bevacizumab were unchanged. sP-selectin was decreased after bevacizumab infusion by 18% (p = 0.045), which could suggest an inhibitory action on platelets. Our data do not support the view that increased platelet activation or increased platelet adhesiveness and aggregation by bevacizumab are relevant mechanisms for thrombus formation in clinical practice.
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Affiliation(s)
- M Fehr
- Division of Oncology, Department of Medicine, Kantonsspital Graubünden, Loéstrasse, Chur, CH.
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Imbschweiler I, Schauerte N, Henjes C, Fehr M, Baumgärtner W. Odontogenic dysplasia in the molar teeth of Steppe lemmings (Lagurus lagurus). Vet J 2011; 188:365-8. [DOI: 10.1016/j.tvjl.2010.05.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Revised: 05/04/2010] [Accepted: 05/15/2010] [Indexed: 10/19/2022]
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Rochlitz C, Ruhstaller T, Lerch S, Spirig C, Huober J, Suter T, Bühlmann M, Fehr M, Schönenberger A, von Moos R, Winterhalder R, Rauch D, Müller A, Mannhart-Harms M, Herrmann R, Cliffe B, Mayer M, Zaman K. Combination of bevacizumab and 2-weekly pegylated liposomal doxorubicin as first-line therapy for locally recurrent or metastatic breast cancer. A multicenter, single-arm phase II trial (SAKK 24/06). Ann Oncol 2011; 22:80-85. [DOI: 10.1093/annonc/mdq319] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Imholt KM, Möller S, Fehr M, Meyer-Lindenberg A. [Lameness and osteoarthritis development following Tibial Plateau Leveling Osteotomy (TPLO) and potential prognostic predictors. A long-term retrospective study]. Tierarztl Prax Ausg K Kleintiere Heimtiere 2011; 39:323-335. [PMID: 22134659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 07/08/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVE Evaluation of lameness and osteoarthritis (OA) progression following Tibial Plateau Leveling Osteotomy (TPLO) in dogs with naturally-occurring rupture of the cranial cruciate ligament (CCL) and investigation of factors with potential influence on long-term outcome. MATERIAL AND METHODS In a retrospective clinical study medical records of 119 client-owned dogs (135 operated stifle joints) and corresponding client-questionnaires were reviewed, collecting data on radiologic and surgery results, course of surgery and complications. In a check-up, orthopaedic examination and stifle radiographs were performed to assess status quo of OA, lameness, and progression of OA. RESULTS 58 dogs (66 stifle joints) could be examined clinically and radiologically, whereas 61 dogs (69 stifle joints) were re-checked by client-questionnaire only. Up to 6.8 years after TPLO surgery, in 90.4% of all cases lameness results were judged "excellent" (n=84) or "good" (n=38). In the long term, there was a moderate but significant progression of OA following TPLO surgery. Patients with totally ruptured CCL were significantly more likely to have meniscal injury than dogs with partially ruptured CCL. Dogs with partial meniscectomy had a significantly higher rate of "excellent" long-term clinical results and less frequently showed progression of OA compared to those having the meniscus released or left untouched. The overall complication rate was 22.2% (n=30), with the type of complication having no influence on the long-term clinical outcome. CONCLUSIONS AND CLINICAL RELEVANCE Regarding lameness, the long-term outcome following TPLO is very satisfying. Early surgical treatment of CCL rupture using TPLO can help to decrease the likelihood of OA progression. Partial medial meniscectomy may help to avoid repeated surgery due to subsequent meniscal injury without having a negative impact on long-term functional outcome or the progression of OA in the affected joint. Neither long-term clinical results, especially regarding lameness, nor OA were impaired by previous surgery prior to TPLO or the occurrence of complications associated with TPLO surgery.
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Affiliation(s)
- K M Imholt
- Klinik fur Kleintiere der Stiftung Tierarztliche Hochschule, Hannover
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Fehr M, Thomas M, Baur S, Köstlinger S. [Fractures and luxations in small mammals]. Tierarztl Prax Ausg K Kleintiere Heimtiere 2011; 39:343-352. [PMID: 22134661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 09/08/2011] [Indexed: 05/31/2023]
Abstract
Most traumata in small mammals occur at home. Diagnosis and therapy can be compared with that in the dog and cat, but species-specific differences have to be considered. For fracture treatment a butterfly-cast can be sufficient for stabilization in special cases. In most cases satisfying results can be obtained with a "tie-in-fixator" treatment. Dislocations of the elbow joint are treated by reduction or stabilization through suture techniques or temporary arthrodesis.
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Affiliation(s)
- M Fehr
- Klinik für Heimtiere, Reptilien, Zier- und Wildvögel, der Stiftung Tierärztliche Hochschule Hannover, Hannover.
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Fehr M, Madon J, Catschegn S, Reinhart W, Asmis L, Cathomas R, Von Moos R. 9252 Influence of bevacizumab on platelet function in vivo. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71943-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Chattipakorn SC, Kumfu S, Srichairattanakool S, Fucharoen S, Chattipakorn N, Moreno Planas J, Quintanilla JG, Archondo T, Usandizaga E, Perez-Castellano N, Nunez I, Macaya C, Perez-Villacastin J, Guasch E, Gay-Jordi G, Benito B, Mont L, Sirenko V, Brugada J, Serrano-Mollar A, Milberg P, Kleideiter A, Pott C, Moennig G, Osada N, Breithardt G, Fehr M, Eckardt L, Moreno Planas J, Quintanilla JG, Lopez-Farre AJ, Usandizaga E, Archondo T, Aragoncillo P, Macaya C, Perez-Villacastin J, Fortmueller L, Blana A, Laakmann S, Carmeliet E, Carmeliet P, Breithardt G, Kirchhof P, Fabritz L. Abstracts: Basic Science in arrhythmias: mechanisms. Europace 2009. [DOI: 10.1093/europace/euq223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rochlitz C, Spirig C, Ruhstaller T, Suter T, Bühlmann M, Fehr M, Schönenberger A, Lerch S, Mayer M, Zaman K. Bevacizumab and pegylated liposomal doxorubicin as first-line therapy for locally recurrent or metastatic breast cancer: A multicenter, single-arm phase II trial of the Swiss Group for Clinical Cancer Research (SAKK). J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.1030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1030 Background: Bevacizumab in combination with taxanes has become a standard first-line treatment of advanced breast cancer in some countries, but there is no information on its use in combination with pegylated lipsomal doxorubicin in metastatic breast cancer. Therefore, we performed a multicenter, single-arm phase II trial to evaluate the toxicity and efficacy of pegylated liposomal doxorubicin (PLD) and bevacizumab (B) as first-line treatment in advanced breast cancer. Methods: PLD at a dose of 20 mg/m2 and B at 10 mg/kg were infused on days 1 and 15 of each 4-week cycle for a maximum of 6 cycles. Thereafter, B monotherapy was continued at the same dose until progression or toxicity. Primary endpoint was the occurrence of specific toxic events known to strongly interfere with quality of life, i.e., severe cardiac toxicity, any grade 4/5 toxicity, and selected grade 3 nonhematological toxicities (hand-foot-syndrome, cognitive disturbance, CNS hemorrhage, and mucositis/stomatitis). Secondary endpoints included overall response, progression free survival (PFS), time to treatment failure, and duration of response. Eligibility criteria included documentation of metastatic or inoperable breast cancer; measurable disease according to RECIST; erbB2-negativity; LVEF of ≥ 55%; WHO performance status 0 or 1. The study used a Herndon's two-stage design with 14 and 29 patients for stages 1 and 2, respectively. The promising rate of primary toxicity was <15% and the uninteresting rate >33%. The type I error probability was 5% and the power 80%. Results: The trial had to be stopped prematurely because of toxicity after the enrollment of 41 evaluable patients. Among these patients, 16 (39%) had grade 3 hand-foot syndrome, 1 grade 3 mucositis and 1 grade 4 cardiac toxicity. Thus, a total of 18/41 (44%, exact 95% c.i. 28–60%) of all patients had a primary toxicity. Best overall response rate was 23.3% (exact 95% c.i. 12–39%), median PFS was 7.5 months (95% c.i. 4.6–8.1 months). Conclusions: The combination of 2-weekly PLD and B in advanced breast cancer is surprisingly toxic and only modestly active and should not be further investigated. [Table: see text]
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Affiliation(s)
- C. Rochlitz
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - C. Spirig
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - T. Ruhstaller
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - T. Suter
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - M. Bühlmann
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - M. Fehr
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - A. Schönenberger
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - S. Lerch
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - M. Mayer
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
| | - K. Zaman
- University Hospital, Basel, Switzerland; Brustzentrum, St. Gallen, Switzerland; Inselspital, Bern, Switzerland; University Hospital, Zürich, Switzerland; Kantonsspital, Aarau, Switzerland; Swiss Group for Clinical Cancer Research, Bern, Switzerland; Centre Hospitalier Universitaire Vaudois Lausanne, Lausanne, Switzerland
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Abstract
In a 14 months old satin guinea pig Osteodystrophia fibrosa generalisata was diagnosed by clinical and x-ray examination. The guinea pig was treated palliatively with Meloxicam and Natriumrisedronate as well as periodic dental treatment. At the age of 3 years and 10 months the guinea pig died, but necropsy was denied by the owner.
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Affiliation(s)
- Ch Rapsch Dahinden
- Klinik für Heimtiere, Reptilien, Zier- und Wildvögel der Stiftung Tierärztliche Hochschule Hannover, Hannover.
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