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Acke F, Kostadinov F, Schlegel C, Linder T. Reconstructive ossiculoplasty options in primary cholesteatoma surgeries with an intact stapes. Eur Arch Otorhinolaryngol 2024; 281:711-718. [PMID: 37542562 PMCID: PMC10796415 DOI: 10.1007/s00405-023-08147-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 07/21/2023] [Indexed: 08/07/2023]
Abstract
PURPOSE In primary cholesteatoma patients, incus destruction with an intact and mobile stapes is a frequent finding. Different techniques have been described to restore the ossicular chain, including incus interposition, stapes augmentation and type III tympanoplasty. Controversy about postoperative hearing results in open versus closed surgical techniques exist. METHODS We performed a retrospective analysis of clinical, surgical and audiometric data of patients with primary cholesteatoma surgery operated between 2010 and 2020, and a mobile stapes and one-stage ossicular reconstruction. Pre- and post-operative audiograms were compared for the different surgical groups, mainly focusing on postoperative air-bone gap. Mastoid pneumatization and ventilation was also considered. RESULTS The mean postoperative air-bone gap (0.5-4 kHz) of the 126 included patients was 20 dB. Hearing after type III tympanoplasty (26 dB) was worse than incus interposition (19 dB) and stapes augmentation (20 dB). Hearing after an open (23 dB) versus closed (19 dB) surgical technique was significantly different. No improvement in air-bone gap was observed for the higher frequencies. CONCLUSION A residual postoperative air-bone gap should be considered after primary cholesteatoma surgery with intact and mobile stapes. Incus interposition in closed cavity operation is the optimal situation, but open cavity surgery should not be avoided because of hearing. Extent of the disease is prioritized and poorer ventilation before and after surgery may affect postoperative hearing.
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Affiliation(s)
- Frederic Acke
- Department of Otorhinolaryngology, Head and Neck Surgery, Luzerner Kantonsspital, Lucerne, Switzerland
- Department of Otorhinolaryngology, Ghent University/Ghent University Hospital, Ghent, Belgium
| | - Filip Kostadinov
- Department of Otorhinolaryngology, Head and Neck Surgery, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Christoph Schlegel
- Department of Otorhinolaryngology, Head and Neck Surgery, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Thomas Linder
- Department of Otorhinolaryngology, Head and Neck Surgery, Luzerner Kantonsspital, Lucerne, Switzerland.
- University of Luzern, Lucerne, Switzerland.
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Althaus K, Möller P, Uzun G, Singh A, Beck A, Bettag M, Bösmüller H, Guthoff M, Dorn F, Petzold GC, Henkes H, Heyne N, Jumaa H, Kreiser K, Limpach C, Luz B, Maschke M, Müller JA, Münch J, Nagel S, Pötzsch B, Müller J, Schlegel C, Viardot A, Bäzner H, Wolf M, Pelzl L, Warm V, Willinek WA, Steiner J, Schneiderhan-Marra N, Vollherbst D, Sachs UJ, Fend F, Bakchoul T. Antibody-mediated procoagulant platelets in SARS-CoV-2-vaccination associated immune thrombotic thrombocytopenia. Haematologica 2021; 106:2170-2179. [PMID: 34011137 PMCID: PMC8327736 DOI: 10.3324/haematol.2021.279000] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Indexed: 12/13/2022] Open
Abstract
The COVID-19 pandemic has resulted in significant morbidity and mortality worldwide. To prevent severe infection, mass COVID-19 vaccination campaigns with several vaccine types are currently underway. We report pathological and immunological findings in 8 patients who developed vaccine-induced immune thrombotic thrombocytopenia (VITT) after administration of SARS-CoV-2 vaccine ChAdOx1 nCoV-19. We analyzed patient material using enzyme immune assays, flow cytometry and heparin-induced platelet aggregation assay and performed autopsies on two fatal cases. Eight patients (5 female, 3 male) with a median age of 41.5 years (range, 24 to 53) were referred to us with suspected thrombotic complications 6 to 20 days after ChAdOx1 nCoV-19 vaccination. All patients had thrombocytopenia at admission. Patients had a median platelet count of 46.5 x109/L (range, 8 to 92). Three had a fatal outcome and 5 were successfully treated. Autopsies showed arterial and venous thromboses in various organs and the occlusion of glomerular capillaries by hyaline thrombi. Sera from VITT patients contain high titer antibodies against platelet factor 4 (PF4) (OD 2.59±0.64). PF4 antibodies in VITT patients induced significant increase in procoagulant markers (P-selectin and phosphatidylserine externalization) compared to healthy volunteers and healthy vaccinated volunteers. The generation of procoagulant platelets was PF4 and heparin dependent. We demonstrate the contribution of antibody-mediated platelet activation in the pathogenesis of VITT.
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Affiliation(s)
- Karina Althaus
- Institute for Clinical and Experimental Transfusion Medicine, Medical Faculty of Tuebingen, University Hospital of Tuebingen; Institute for Clinical Transfusion Medicine, University Hospital of Tuebingen
| | - Peter Möller
- Institute for Pathology, University Hospital of Ulm
| | - Günalp Uzun
- Institute for Clinical Transfusion Medicine, University Hospital of Tuebingen
| | - Anurag Singh
- Institute for Clinical and Experimental Transfusion Medicine, Medical Faculty of Tuebingen, University Hospital of Tuebingen
| | - Annika Beck
- Institute for Pathology, University Hospital of Ulm
| | - Martin Bettag
- Department of Neurosurgery, Krankenhaus der Barmherzigen Brüder Trier, Trier
| | - Hans Bösmüller
- Institute for Pathology and Neuropathology, University Hospital of Tuebingen
| | - Martina Guthoff
- Department of Internal Medicine IV, Section of Nephrology and Hypertension, University Hospital of Tuebingen
| | | | | | - Hans Henkes
- Department of Neuroradiology, Klinikum Stuttgart, Stuttgart
| | - Nils Heyne
- Department of Internal Medicine IV, Section of Nephrology and Hypertension, University Hospital of Tuebingen
| | - Hassan Jumaa
- Institute for Immunology, University Hospital of Ulm
| | | | - Caroline Limpach
- Department of Neurology, Krankenhaus der Barmherzigen Brüder Trier, Trier
| | - Beate Luz
- Institute of Transfusion Medicine, Klinikum Stuttgart, Stuttgart
| | - Matthias Maschke
- Department of Neurology, Krankenhaus der Barmherzigen Brüder Trier, Trier
| | - Janis A Müller
- Institute of Molecular Virology, Ulm University Medical Center, Ulm
| | - Jan Münch
- Institute of Molecular Virology, Ulm University Medical Center, Ulm
| | - Simon Nagel
- Department of Neurology, University Hospital Heidelberg
| | - Bernd Pötzsch
- Institute for Experimental Hematology and Transfusion Medicine, Bonn
| | - Jens Müller
- Institute for Experimental Hematology and Transfusion Medicine, Bonn
| | | | | | | | - Marc Wolf
- Department of Neurology, Klinikum Stuttgart, Stuttgart
| | - Lisann Pelzl
- Institute for Clinical and Experimental Transfusion Medicine, Medical Faculty of Tuebingen, University Hospital of Tuebingen
| | - Verena Warm
- Institute for Pathology and Neuropathology, University Hospital of Tuebingen
| | | | - Jochen Steiner
- Anaesthesiology and Intensive Care Medicine, University Hospital Tuebingen
| | | | | | - Ulrich J Sachs
- Department of Thrombosis and Hemostasis and Institute of Immunology and Transfusion Medicine, Giessen
| | - Falko Fend
- Institute for Pathology and Neuropathology, University Hospital of Tuebingen
| | - Tamam Bakchoul
- Institute for Clinical and Experimental Transfusion Medicine, Medical Faculty of Tuebingen, University Hospital of Tuebingen; Institute for Clinical Transfusion Medicine, University Hospital of Tuebingen
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Briner HR, Leunig A, Schlegel C, Simmen D. Correction to: Preoperative risk assessment for ambulatory sinonasal surgery. Eur Arch Otorhinolaryngol 2021; 278:1463. [PMID: 33533942 PMCID: PMC8057960 DOI: 10.1007/s00405-020-06475-w] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Hans Rudolf Briner
- Center for Otorhinolaryngology, Head and Neck Surgery, Klinik Hirslanden, Witellikerstrasse 40, 8032, Zurich, Switzerland.
| | - Andreas Leunig
- Rhinology Center Munich and ENT-Clinic Dr. Gaertner GmbH, Possartstr. 27-31, 81679, Munich, Germany
| | - Christoph Schlegel
- Department of Otorhinolaryngology, Head and Neck Surgery, Luzerner Kantonsspital, 6000, Lucerne 16, Switzerland
| | - Daniel Simmen
- Center for Otorhinolaryngology, Head and Neck Surgery, Klinik Hirslanden, Witellikerstrasse 40, 8032, Zurich, Switzerland
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Abstract
OBJECTIVES An increasing proportion of patients who are candidates for endoscopic sinus surgery can be treated as an outpatient. A preoperative risk assessment is needed to evaluate eligibility for day surgery. This study analyses the effectiveness of a risk assessment scoring system which examines medical, procedure-related, and socioeconomic factors. DESIGN Prospective multicenter study. SETTING Three center study including Klinik Hirslanden, Zurich, Switzerland, Luzerner Kantonsspital, Lucerne, Switzerland and HNO-Klinik München-Bogenhausen, Munich, Germany. PARTICIPANTS Patients with endoscopic sinus procedures between January 1st, 2017 and December 31st, 2018. MAIN OUTCOME MEASURES The "day surgery risk score" consisted of three subgroups with medical, procedure-related and socioeconomic risk factors were assessed to determine if these predicted the severity of postoperative complications. RESULTS Three-hundred and one patients who underwent endoscopic sinus surgery were included. The score resulted in a median value of 5 [5, 5]. In the Receiver-Operating Curve (ROC-the true-positive rate against the false-positive rate), the Area Under the Curve (AUC) was 0.59 with 95% confidence interval from 0.49 to 0.69, indicating that the "day surgery risk score" may be no better at predicting the likelihood of a complication than a random classification model. CONCLUSIONS The "day surgery risk score" is a straightforward risk assessment which combines medical, procedure-related, and socioeconomic factors. The score is easy to use but in trying to decide whether a patient is eligible for ambulatory endoscopic sinus surgery it did not predict whether a complication was more likely to occur.
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Affiliation(s)
- Hans Rudolf Briner
- Center for Otorhinolaryngology, Head and Neck Surgery, Klinik Hirslanden, Witellikerstrasse 40, 8032, Zurich, Switzerland.
| | - Andreas Leunig
- Rhinology Center Munich and ENT-Clinic Dr. Gaertner GmbH, Possartstr. 27-31, 81679, Munich, Germany
| | - Christoph Schlegel
- Department of Otorhinolaryngology, Head and Neck Surgery, Luzerner Kantonsspital, 6000, Lucerne 16, Switzerland
| | - Daniel Simmen
- Center for Otorhinolaryngology, Head and Neck Surgery, Klinik Hirslanden, Witellikerstrasse 40, 8032, Zurich, Switzerland
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Li Y, Schlegel C, Linder T. [The comparison of malleostapedotomy in primary and revision stapes surgery for otosclerosis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:332-337. [PMID: 32306629 DOI: 10.3760/cma.j.cn115330-20190311-00132] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the effectiveness of primary malleostapedotomy with revision malleostapedotomy for otosclerosis. Methods: From April 2002 to December 2017, 70 consecutive patients with otosclerosis who underwent malleostapedotomy were reviewed. Depending on the primary malleostapedotomy (P-MS) or revision malleostapedotomy (R-MS), the patients were divided into P-MS group or R-MS group.The intraoperative findings and hearing results before and after surgery were compared between the two groups. ALL data were analyzed using SPSS 23. Results: Totally 73 malleostapedotomy were performed in 73 ears of 70 patients, including 38 P-MS and 35 R-MS. There was no significant difference between the two groups in sex ratio, age and operated ears (P>0.05 for all). The most common finding at P-MS was incus fixation (50.0%, 19/38) versus prosthesis displacement for R-MS (60.0%, 21/35) . Overall, the air-bone gap (ABG) improvement in P-MS were (18.1±8.2) dB in 0.5-3 kHz and (18.3±8.5) dB in 0.5-4 kHz, without significant difference to those in R-MS (P>0.05) . 31.4% of R-MS in 0.5-3 kHz and 22.9% R-MS in 0.5-4 kHz achieved an ABG<10 dB, significantly lower than those of P-MS (65.8% in 0.5-3 kHz and 57.9% in 0.5-4kHz; P<0.05). Failure (postoperative ABG>30 dB) occurred in 11.4% in R-MS and 0 in P-MS (for 0.5-3 kHz and 0.5-4 kHz). The incidence of postoperative sensorineural hearing loss (>10 dB increase in bone conduct) in R-MS group was 8.6% in 0.5-3 kHz and 0.5-4 kHz, without significant difference to those in P-MS (P>0.05) . 80.0% (20/25) of first R-MS achieved ABG<20 dB, compared to 37.5% (3/8) of second R-MS with ABG<20 dB. Conclusions: Although both P-MS and R-MS can significantly improve hearing, with similar risk of inner ear damage, R-MS is less effective and poses a higher risk of failure than P-MS. For patients with insufficient hearing improvement after first R-MS, conventional hearing aids or implantable hearing devices may be considered as an alternative.
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Affiliation(s)
- Y Li
- Department of Otolaryngology Head and Neck Surgery, the Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710004, China
| | - Christoph Schlegel
- Department of Otolaryngology Head and Neck Surgery, Kantonsspital Luzern, Spitalstrasse, CH 6000 Luzerne, Switzerland
| | - Thomas Linder
- Department of Otolaryngology Head and Neck Surgery, Kantonsspital Luzern, Spitalstrasse, CH 6000 Luzerne, Switzerland
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Brockmann SO, Oehme R, Buckenmaier T, Beer M, Jeffery-Smith A, Spannenkrebs M, Haag-Milz S, Wagner-Wiening C, Schlegel C, Fritz J, Zange S, Bestehorn M, Lindau A, Hoffmann D, Tiberi S, Mackenstedt U, Dobler G. A cluster of two human cases of tick-borne encephalitis (TBE) transmitted by unpasteurised goat milk and cheese in Germany, May 2016. ACTA ACUST UNITED AC 2019; 23. [PMID: 29667575 PMCID: PMC6836198 DOI: 10.2807/1560-7917.es.2018.23.15.17-00336] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [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] [Indexed: 12/17/2022]
Abstract
In May 2016, two cases of tick-borne encephalitis (TBE) were confirmed by serology (positive IgM and IgG antibodies against TBE virus (TBEV) in serum), with a possible link to raw milk and cheese from a goat farm in a region in Baden-Württemberg, Germany not previously known as TBE-endemic. The outbreak investigation identified 32 consumers of goat dairy products (29 consumers, one farm employee, two owners) of whom none had IgM antibodies against TBEV 3–8 weeks after consumption. Of the 27 notified TBE cases in the State, none reported consumption of raw goat milk or cheese from the suspected farm. Five of 22 cheese samples from 18 different batches were RT-qPCR-positive for TBEV -genome, and two of the five samples were confirmed by virus isolation, indicating viability of TBEV in the cheese. Nine of the 45 goats had neutralising TBEV antibodies, two of them with a high titre indicating recent infection. One of 412 Ixodes ricinus was RT-qPCR-positive, and sequencing of the E gene from nucleic acid extracted from the tick confirmed TBEV. Phylogenetic analyses of tick and cheese isolates showed 100% amino acid homology in the E gene and a close relation to TBEV strains from Switzerland and Austria.
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Affiliation(s)
- S O Brockmann
- Public Health Office, District of Reutlingen, Reutlingen, Germany
| | - R Oehme
- State Health Office Baden-Württemberg, Stuttgart, Germany
| | - T Buckenmaier
- Veterinary Health Office, District of Reutlingen, Reutlingen, Germany
| | - M Beer
- Friedrich-Loeffler Institute, Federal Institute of Animal Health, Institute of Diagnostic Virology, Greifswald, Insel Riems, Germany
| | | | - M Spannenkrebs
- Public Health Office, District of Biberach, Biberach, Germany
| | - S Haag-Milz
- Public Health Office, District of Sigmaringen, Sigmaringen, Germany
| | | | - C Schlegel
- Public Health Office, District of Reutlingen, Reutlingen, Germany
| | - J Fritz
- Public Health Office, District of Reutlingen, Reutlingen, Germany
| | - S Zange
- Bundeswehr Institute of Microbiology; German Consultant Laboratory of TBE, German Center of Infection Research (DZIF), Munich, Germany
| | - M Bestehorn
- Parasitology Unit, University of Hohenheim, Stuttgart, Germany
| | - A Lindau
- Parasitology Unit, University of Hohenheim, Stuttgart, Germany
| | - D Hoffmann
- Friedrich-Loeffler Institute, Federal Institute of Animal Health, Institute of Diagnostic Virology, Greifswald, Insel Riems, Germany
| | - S Tiberi
- Barts Health NHS Trust, London, United Kingdom
| | - U Mackenstedt
- Parasitology Unit, University of Hohenheim, Stuttgart, Germany
| | - G Dobler
- Parasitology Unit, University of Hohenheim, Stuttgart, Germany.,Bundeswehr Institute of Microbiology; German Consultant Laboratory of TBE, German Center of Infection Research (DZIF), Munich, Germany
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Nestel D, McNaughton N, Smith C, Schlegel C, Tierney T. Values and value in simulated participant methodology: A global perspective on contemporary practices. Med Teach 2018; 40:697-702. [PMID: 29798709 DOI: 10.1080/0142159x.2018.1472755] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This article has been written for the 40th year of the publication of Medical Teacher. While we celebrate the contribution of simulated participants (SPs) to health professions education through values and value-based learning, we also offer critical reflection on elements of our practice, commencing with language. We argue for the use of the term simulated rather than standardized and acknowledge the dominant role of the SP as patient and the origins of the methodology. These shifts in terms and their implications in practice reflect changes in the conceptualization of SP-based methodology. Recently published standards for those who work with SPs (SP practitioners) are noted as an important milestone in our community's development. We consider contemporary practices addressing the complex notions of values and value in SP-based learning. We simultaneously refer to the work of SPs and SP practitioners. Phases of educational design including identifying learning objectives, scenario design, implementation, feedback and debriefing are used to illustrate methodological shifts. Within each of these phases, there are relational issues that have to date often gone unchecked and are under reported in literature. Finally, using the metaphor of a murmuration, we celebrate contemporary practices of the global SP practitioner community.
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Affiliation(s)
- D Nestel
- a Monash Institute for Health and Clinical Education , Monash University , Clayton , Australia
- b Department of Surgery (Austin) , University of Melbourne , Melbourne , Australia
| | - N McNaughton
- c The Michener Institute of Education at UHN , Toronto , Canada
| | - C Smith
- d Division of Training and Simulation , Baycrest Health Sciences , Toronto , Canada
| | - C Schlegel
- e Skillslab , Berner Bildungszentrum Pflege , Bern , Switzerland
| | - T Tierney
- f Lee Kong Chian School of Medicine , Nanyang Technological University , Singapore
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Brockmann S, Eichner L, Geisel B, Hofer M, Fritz J, Schlegel C, Eichner M. Benachrichtigungen von Gemeinschaftseinrichtungen (§34 IfSG) – Was verbirgt sich hinter den Daten? Das Gesundheitswesen 2018. [DOI: 10.1055/s-0038-1639266] [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: 10/28/2022]
Affiliation(s)
- S Brockmann
- Landratsamt Reutlingen/Kreisgesundheitsamt, Reutlingen, Germany
| | - L Eichner
- Landratsamt Reutlingen, Reutlingen, Germany
| | - B Geisel
- Landesgesundheitsamt Baden-Württemberg, Stuttgart, Germany
| | - M Hofer
- Landratsamt Reutlingen, Reutlingen, Germany
| | - J Fritz
- Reutlingen, Reutlingen, Germany
| | - C Schlegel
- Landratsamt Reutlingen, Reutlingen, Germany
| | - M Eichner
- Institut für klinische Epidemiologie und angewandte Biometrie, Tübingen, Germany
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Epprecht L, Schlegel C, Holzmann D, Soyka M, Kaufmann T. Closure of nasal septal perforations with a polydioxanone plate and temporoparietal fascia in a closed approach. Am J Rhinol Allergy 2018; 31:190-195. [PMID: 28490406 DOI: 10.2500/ajra.2017.31.4431] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Septal perforation closure is still often invasive and complex, with relatively low closure rates. OBJECTIVES We aimed to provide the first results of a case series of 20 patients with nasal septal perforations who underwent septal perforation repair by both an open and a minimally invasive technique by using a graft that consisted of temporoparietal fascia and a polydioxanone (PDS) plate without mucosal flaps. Between 2014 and 2016, we tested, for the first time, the feasibility of the insertion of this graft via a hemitransfixion incision at our institution. The rationale for the closed approach was to avoid any visible nasal scars. We reported our results of both approaches. METHODS The septal perforations were closed by insertion of a graft, which consisted of a 0.25-mm PDS flexible plate enveloped by temporoparietal fascia, into the perforation. The insertion of the graft was performed either via a columellar incision (open approach) or via a cosmetically advantageous hemitransfixion incision (closed approach) in an underlay technique. No attempts were made to close the perforation by mucosal flap rotation and/or advancement. Protective silastic sheeting to both sides of the perforation provided fixation to the graft while natural mucosal healing occurred over the perforation in the course of 3 to 8 weeks. RESULTS Eighteen of 20 perforations were closed by mucosa at the last follow-up. The mean follow-up was 8.7 months. Thirteen patients had surgery via the closed approach. CONCLUSION We showed, for the first time, that the insertion of a graft that consisted of a PDS flexible plate enveloped in temporoparietal fascia via a hemitransfixion incision was feasible and resulted in complete mucosal closure of nasal septal perforations in most patients. By performing the hemitransfixion incision, we avoided any visible nasal scars.
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Novoa E, Simmen D, Briner H, Schlegel C. Long-term results after restoring nasal tip support using auricular cartilage as an intercrural columellar strut graft: the “I-Beam” technique. Rhinology 2018; 56:1783. [PMID: 29447327 DOI: 10.4193/rhin17.184] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The lack of nasal tip support resulting in poor protection and projection of the nose is a common cause of nasal obstruction and cosmetic impairment. Although septal cartilage is preferred for restoration of nasal tip support, there is often not enough septal cartilage available. We describe an intercrural columellar strut graft in a circumferential soft tissue pocket: the I-Beam technique. METHODOLOGY In this cohort study over an 8-year period the clinical and biometrical long-term results after restoration of nasal tip support with an autologous auricular cartilage graft, the I-Beam technique, is evaluated. RESULTS Out of the 72 consecutive septorhinoplasties with the I-Beam technique, we studied 66 patients in the median long-term follow-up of 89 months. In all patients a significant improvement in nasal tip projection was found. A functional improvement in nasal breathing was achieved in 86%. The overall satisfaction with the I-Beam graft was of 83%. No deterioration in smell perception was found after surgery. CONCLUSIONS The I-Beam technique using back-to-back sutured autologous auricular cartilage is a safe and effective technique and gives long-term structural support and enhances tip projection.
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11
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Mulazimoglu S, Saxby A, Schlegel C, Linder T. Titanium incus interposition ossiculoplasty: audiological outcomes and extrusion rates. Eur Arch Otorhinolaryngol 2017; 274:3303-3310. [PMID: 28601902 DOI: 10.1007/s00405-017-4634-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 12/30/2016] [Accepted: 06/07/2017] [Indexed: 10/19/2022]
Abstract
This study aimed to evaluate the benefit but also the extrusions, dislocations, and failures of a titanium incus prosthesis along with the long-term audiological outcomes. We prospectively collected data from 139 patients undergoing ossiculoplasty using the Fisch titanium incus prosthesis between 2001 and 2016. Overall, 126 patients with at least 6 months of follow-up (mean 4.5 years, range 6-155 months) were analyzed. Patients were grouped as "extrusion" (n = 9, 7%) if the prosthesis extruded, "failure" (n = 22, 18%) if a reoperation was needed concerning the prosthesis, and "stable" (n = 95, 75%) if the prosthesis remained functional in the middle ear. Mean postoperative air bone gaps (ABG) for 0.5-3 kHz for the overall group and the stable group were 19.8 (±11.9) and 15.3 (±7.5), respectively. Long-term results of stable group revealed an ABG (0.5-3 kHz) below 10 dB in 25% and below 20 dB in 81% of the patients. Atelectasis was the most frequent cause of extrusion, which occurred after a mean time of 28.7 months (range 15-48 months). Mean timing for reoperation was 30.7 months (range 5-131 months) in the failure group. There was no significant difference in mean postoperative ABG among patients with or without cholesteatoma, primary or staged ossiculoplasty in cholesteatoma, presence or absence of malleus head at the time of ossiculoplasty, open or closed cavity surgeries, or the degree of pneumatization of the temporal bone. The Fisch titanium incus prosthesis is a reliable alternative to using autologous incus for interposition ossiculoplasty, with similar hearing outcomes. Using this prosthesis, a 15 dB ABG should be expected.
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Affiliation(s)
- Selcuk Mulazimoglu
- Department of Otorhinolaryngology Head and Neck Surgery, Luzerner Kantonsspital, Spitalstrasse, 6000, Lucerne, Switzerland
| | - Alexander Saxby
- Department of Otolaryngology, Head and Neck Surgery, Royal Prince Alfred Hospital, Sydney, Australia
| | - Christoph Schlegel
- Department of Otorhinolaryngology Head and Neck Surgery, Luzerner Kantonsspital, Spitalstrasse, 6000, Lucerne, Switzerland
| | - Thomas Linder
- Department of Otorhinolaryngology Head and Neck Surgery, Luzerner Kantonsspital, Spitalstrasse, 6000, Lucerne, Switzerland.
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12
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Brockmann S, Dobler G, Buckenmaier T, Beer M, Jeffery-Smith A, Spannenkrebs M, Haag-Milz S, Wagner-Wiening C, Schlegel C, Bestehorn M, Lindau A, Mackenstedt U, Oehme R. Frühsommer-Meningoenzephalitis (FSME) nach dem Konsum von Rohmilchprodukten in Deutschland: Konsequenzen für den Verbraucherschutz? Gesundheitswesen 2017. [DOI: 10.1055/s-0037-1602044] [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: 10/19/2022]
Affiliation(s)
- S Brockmann
- Landratsamt Reutlingen, Kreisgesundheitsamt, Reutlingen
| | - G Dobler
- Institut für Mikrobiologie der Bundeswehr, Nationales Konsiliarlabor für FSME, München
| | | | - M Beer
- Friedrich-Löffler Institut, Riems
| | | | | | | | | | - C Schlegel
- Landratsamt Reutlingen, Kreisgesundheitsamt, Reutlingen
| | - M Bestehorn
- Institut für Mikrobiologie der Bundeswehr, Nationales Konsiliarlabor für FSME, München
| | - A Lindau
- Institut für Zoologie, Universität Hohenheim, Stuttgart
| | - U Mackenstedt
- Institut für Zoologie, Universität Hohenheim, Stuttgart
| | - R Oehme
- Landesgesundheitsamt Baden-Württemberg, Stuttgart
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13
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Huster M, Schlegel C, Bohley M, Aurich J, Ulber R. Characterization of Productive Single-species Biofilms on Microstructured Surfaces. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650532] [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: 11/09/2022]
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14
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Duwe A, Schlegel C, Tippkötter N, Ulber R. Sequentielle Extraktion von Cellulose zur effizienten Nutzung der Stoffströme in der Holzbioraffinerie. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450308] [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: 11/08/2022]
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15
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Schlegel C, Duwe A, Sieker T, Aurich J, Muffler K, Ulber R. Kontinuierliche Produktion von Milchsäure mit Biofilmen auf mikrostrukturierten Metalloberflächen. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450103] [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: 11/09/2022]
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16
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Bartoli C, Beug MF, Bruns T, Elster C, Esward T, Klaus L, Knott A, Kobusch M, Saxholm S, Schlegel C. Traceable dynamic measurement of mechanical quantities: objectives and first results of this european project. Int J Metrol Qual Eng 2013. [DOI: 10.1051/ijmqe/2012020] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Nine european national metrology institutes (NMIs) are collaborating in a new project funded by the european metrology research programme (EMRP) to establish traceable dynamic measurement of the mechanical quantities force, pressure, and torque. The aim of this joint research project (JRP) is to develop appropriate calibration methods, mathematical models, and uncertainty evaluation. The duration of the project is 3 years for a global amount of €3.6 million. It began in September 2011.
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Fenzl M, Schnizer W, Aebli N, Schlegel C, Villiger B, Disch A, Gredig J, Zaugg T, Krebs J. Release of ANP and fat oxidation in overweight persons during aerobic exercise in water. Int J Sports Med 2013; 34:795-9. [PMID: 23446733 DOI: 10.1055/s-0033-1333696] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Exercise in water compared to land-based exercise (LE) results in a higher release of natriuretic peptides, which are involved in the regulation of exercise-induced adipose tissue lipolysis. The present study was performed to compare the release of atrial natriuretic peptide (ANP) and free fatty acids (FFA) during prolonged aerobic water-based exercise (WE) with the release after an identical LE. 14 untrained overweight subjects performed 2 steady state workload tests on the same ergometer in water and on land. Before and after exercise, venous blood samples were collected for measuring ANP, FFA, epinephrine, norepinephrine, insulin and glucose. The respiratory exchange ratio (RER) was determined for fat oxidation.The exercises resulted in a significant increase in ANP in LE (61%) and in WE (177%), and FFA increased about 3-fold in LE and WE with no significant difference between the groups. Epinephrine increased, while insulin decreased similarly in both groups. The RER values decreased during the exercises, but there was no significant difference between LE and WE. In conclusion, the higher ANP concentrations in WE had no additional effect on lipid mobilization, FFA release and fat oxidation. Moderate-intensity exercises in water offer no benefit regarding adipose tissue lipolysis in comparison to LE.
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Affiliation(s)
- M Fenzl
- Medizinisches Zentrum, Swiss Olympic Medical Center, Bad Ragaz, Switzerland.
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18
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Schlegel C, Wesuls N, Ziegler C, Aurich J, Muffler K, Ulber R. Mikrostrukturabhängige Bildung extrazellulärer Substanzen von Biofilmen auf Metalloberflächen. CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201250124] [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: 11/09/2022]
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19
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Martínez-Pérez MJ, Cardona-Serra S, Schlegel C, Moro F, Alonso PJ, Prima-García H, Clemente-Juan JM, Evangelisti M, Gaita-Ariño A, Sesé J, van Slageren J, Coronado E, Luis F. Gd-based single-ion magnets with tunable magnetic anisotropy: molecular design of spin qubits. Phys Rev Lett 2012; 108:247213. [PMID: 23004325 DOI: 10.1103/physrevlett.108.247213] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Indexed: 05/14/2023]
Abstract
We report ac susceptibility and continuous wave and pulsed EPR experiments performed on GdW10 and GdW30 polyoxometalate clusters, in which a Gd3+ ion is coordinated to different polyoxometalate moieties. Despite the isotropic character of gadolinium as a free ion, these molecules show slow magnetic relaxation at very low temperatures, characteristic of single molecule magnets. For T≲200 mK, the spin-lattice relaxation becomes dominated by pure quantum tunneling events, with rates that agree quantitatively with those predicted by the Prokof'ev and Stamp model [Phys. Rev. Lett. 80, 5794 (1998)]. The sign of the magnetic anisotropy, the energy level splittings, and the tunneling rates strongly depend on the molecular structure. We argue that GdW30 molecules are also promising spin qubits with a coherence figure of merit Q(M)≳50.
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Affiliation(s)
- M J Martínez-Pérez
- Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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20
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Krzystek J, Smirnov D, Schlegel C, van Slageren J, Telser J, Ozarowski A. High-frequency and -field EPR and FDMRS study of the [Fe(H2O)6]2+ ion in ferrous fluorosilicate. J Magn Reson 2011; 213:158-165. [PMID: 22015248 DOI: 10.1016/j.jmr.2011.09.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 08/24/2011] [Accepted: 09/23/2011] [Indexed: 05/31/2023]
Abstract
The complex [Fe(H2O)6]SiF6 is one of the most stable and best characterized high-spin Fe(II) salts and as such, is a paradigm for the study of this important transition metal ion. We describe high-frequency and -field electron paramagnetic resonance studies of both pure [Fe(H2O)6]SiF6 and [Zn(H2O)6]SiF6 doped with 8% of Fe(II). In addition, frequency domain magnetic resonance spectroscopy was applied to these samples. High signal-to-noise, high resolution spectra were recorded which allowed an accurate determination of spin Hamiltonian parameters for Fe(II) in each of these two, related, environments. For pure [Fe(H2O)6]SiF6, the following parameters were obtained: D=+11.95(1) cm(-1), E=0.658(4) cm(-1), g=[2.099(4),2.151(5),1.997(3)], along with fourth-order zero-field splitting parameters: B4(0)=17(1)×10(-4) cm(-1) and B4(4)=18(4)×10(-4) cm(-1), which are rarely obtainable by any technique. For the doped complex, D=+13.42(1) cm(-1), E=0.05(1) cm(-1), g=[2.25(1),2.22(1),2.23(1)]. These parameters are in good agreement with those obtained using other techniques. Ligand-field theory was used to analyze the electronic absorption data for [Fe(H2O)6]SiF6 and suggests that the ground state is 5A1, which allows successful use of a spin Hamiltonian model. Density functional theory and unrestricted Hartree-Fock calculations were performed which, in the case of latter, reproduced the spin Hamiltonian parameters very well for the doped complex.
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Affiliation(s)
- J Krzystek
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA
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21
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Finas D, Schmalfeldt B, Schilling J, Oettle H, Hennig M, Ligensa T, Schlegel C, Seimetz D, Kainz A. 8032 POSTER Catumaxomab Administered as a 3-hour Infusion – Results From a Newly Integrated Safety Analysis Comprising 7 Clinical Studies. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72120-7] [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: 10/17/2022]
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22
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Schlegel C, Dressel M, van Slageren J. Broadband electron spin resonance at 4-40 GHz and magnetic fields up to 10 T. Rev Sci Instrum 2010; 81:093901. [PMID: 20886988 DOI: 10.1063/1.3469783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A broadband electron spin resonance spectrometer is described which operates at frequencies between 4 and 40 GHz and can be used in superconducting magnets. A tunable cylindrical cavity is connected to a vector network analyzer via coaxial cables, and the radiation is fed into the cavity by a coupling loop. No field modulation is employed. Resonance frequencies below 14 GHz are obtained by inserting dielectrics with different permittivities into the cavity. The setup allows for measurements with the microwave magnetic field either parallel or perpendicular to the external field.
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Affiliation(s)
- C Schlegel
- 1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
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23
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Schlegel C, Burzurí E, Luis F, Moro F, Manoli M, Brechin E, Murrie M, van Slageren J. Magnetic Properties of Two New Fe4Single-Molecule Magnets in the Solid State and in Frozen Solution. Chemistry 2010; 16:10178-85. [DOI: 10.1002/chem.200903505] [Citation(s) in RCA: 24] [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: 11/09/2022]
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24
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Schlegel C, Slageren JV, Manoli M, Brechin E, Dressel M. Synthesis, structures and magnetic properties of two novel tetranuclear iron(III) single-molecule magnets: Enhanced energy barriers in solution. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.01.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Aromí G, Bouwman E, Burzurí E, Carbonera C, Krzystek J, Luis F, Schlegel C, van Slageren J, Tanase S, Teat S. A Novel Ni4Complex Exhibiting Microsecond Quantum Tunneling of the Magnetization. Chemistry 2008; 14:11158-66. [DOI: 10.1002/chem.200801450] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Schlegel C, van Slageren J, Manoli M, Brechin EK, Dressel M. Direct observation of quantum coherence in single-molecule magnets. Phys Rev Lett 2008; 101:147203. [PMID: 18851566 DOI: 10.1103/physrevlett.101.147203] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2008] [Indexed: 05/05/2023]
Abstract
Direct evidence of quantum coherence in a single-molecule magnet in a frozen solution is reported with coherence times as long as T{2}=630+/-30 ns. We can strongly increase the coherence time by modifying the matrix in which the single-molecule magnets are embedded. The electron spins are coupled to the proton nuclear spins of both the molecule itself and, interestingly, also to those of the solvent. The clear observation of Rabi oscillations indicates that we can manipulate the spin coherently, an essential prerequisite for performing quantum computations.
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Affiliation(s)
- C Schlegel
- 1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
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27
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Fjeldsøe-Nielsen H, Schlegel C, Schønning K, Friis-Møller A. P659 Susceptibility of ESBL, AmpC and K1 β-lactamase producing Enterobacteriaceae to carbapenems in Copenhagen, Denmark. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)70500-9] [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: 11/25/2022]
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28
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Gürtler N, Kim Y, Mhatre A, Schlegel C, Mathis A, Daniels R, Shelton C, Lalwani AK. Two families with nonsyndromic low-frequency hearing loss harbor novel mutations in Wolfram syndrome gene 1. J Mol Med (Berl) 2005; 83:553-60. [PMID: 15912360 DOI: 10.1007/s00109-005-0665-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2004] [Accepted: 02/11/2005] [Indexed: 11/30/2022]
Abstract
Although hereditary hearing loss is highly heterogeneous, only a few loci have been implicated with low-frequency hearing loss. Mutations in one single gene, Wolfram syndrome 1 (WFS1), have been reported to account for most familial cases with this type of hearing impairment. This study was conducted to determine the cause of nonsyndromic low-frequency hereditary hearing impairment in two large families. Two large families from Switzerland and United States with low-frequency hearing loss were identified. Genomewide linkage analysis was performed followed by mutation screening in the candidate gene WFS1 with direct DNA sequencing and restriction fragment analysis. Both families were linked to DFNA6/14/38 with lod scores>3. Two novel heterozygous missense mutations in WFS1 were identified: c.2311G>C leading to p.D771H in the Swiss family and c.2576G>C leading to p.R859P in the US family. The sequence alteration was absent in 100 control chromosomes. Nonsyndromic low-frequency hereditary hearing impairment seems to be predominantly a monogenic disorder due to WFS1. We confirm that most mutations in WFS1 associated with isolated low-frequency hearing loss are clustered in the C-terminal protein domain coded by exon 8.
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Affiliation(s)
- Nicolas Gürtler
- Hals-Nasen-Ohren-Klinik, Kantonsspital Aarau, Aarau, Switzerland
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Nowak D, Dietrich ES, Oberender P, Uberla K, Reitberger U, Schlegel C, Albers F, Ruckdäschel S, Welsch R. Krankheitskosten von COPD in Deutschland. Pneumologie 2004; 58:837-44. [PMID: 15597250 DOI: 10.1055/s-2004-830143] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The present cost-of-illness study is focused on the costs of COPD in Germany. In a pre-study, data on 814 randomly selected patients were collected to achieve reliable figures for the distribution of COPD severity grades and the frequencies of exacerbations. The main study was performed on 321 randomly selected patients from the pre-study. Data on resource use were collected in a face-to-face interview with the respective physicians using the patient records as a basis. Costs associated with resource consumption were weighted with the frequencies of COPD severity grades as assessed in the pre-study to determine the costs of COPD. Annual COPD-related costs per patient were 3,027 from the societal perspective. Main cost components were hospitalisations (26 %), medication (23 %) and early retirement (17 %). Annual COPD-related costs from the perspective of the German health insurance system (GKV) were 1,944 euros per patient.
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Affiliation(s)
- D Nowak
- Klinikum der Ludwig-Maximilians-Universität, Institut und Poliklinik für Arbeits- und Umweltmedizin, München.
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Gürtler N, Kim Y, Mhatre A, Schlegel C, Mathis A, Lalwani AK. DFNA54, a third locus for low-frequency hearing loss. J Mol Med (Berl) 2004; 82:775-80. [PMID: 15490091 DOI: 10.1007/s00109-004-0597-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2004] [Accepted: 08/24/2004] [Indexed: 10/26/2022]
Abstract
Nonsyndromic hereditary hearing impairment (NSHHI) is a highly heterogeneous disorder with more than 90 loci mapped, of which nearly one-half of the responsible genes are identified. In dominant NSSHI hearing loss is typically biased towards the high frequencies while low-frequency hearing loss is unusual. Only two NSHHI loci, DFNA1 and DFNA6/14/38, are associated with predominantly low-frequency loss. We mapped the loci harboring the gene responsible for autosomal dominant low-frequency hearing loss in a multigenerational family. The pedigree of a Swiss family with low-frequency hearing loss was established. Using genomic DNA, DFNA1 and DFNA6/14/38 were excluded by linkage analysis or by direct sequencing of the responsible gene. Genome-wide linkage analysis was performed using commercially available microsatellite markers. Two-point linkage analysis demonstrated linkage to chromosome 5q31, the locus for DFNA15, with a lod score of 6.32 at recombination fraction theta=0 for marker D5S436. Critical recombinations were seen at markers D5S1972 and D5S410. Sequencing of the corresponding gene POU4F3 yielded no pathogenic mutation segregating with the affected members. In addition to Wolfram syndrome gene 1 (DFNA6/14/38) and diaphanous (DFNA1) there is evidence for a third gene involved in low-frequency hearing loss located at DFNA15. Because of the differences in auditory phenotype and the absence of pathogenic mutation in the coding region of POU4F3 it is likely that there is a second gene in 5q31, designated DFNA54, associated with NSHHI.
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Affiliation(s)
- Nicolas Gürtler
- Laboratory of Molecular Otology, Epstein Laboratories, Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, San Francisco, California, USA
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Kuttenberger JJJJ, Hardt N, Schlegel C. Diagnosis and initial management of laryngotracheal injuries associated with facial fractures. J Craniomaxillofac Surg 2004; 32:80-4. [PMID: 14980586 DOI: 10.1016/j.jcms.2003.11.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2003] [Accepted: 11/07/2003] [Indexed: 10/26/2022] Open
Abstract
INTRODUCTION Laryngotracheal injuries are uncommon with an estimated incidence of 1 per thousand (1-6 patients per 15000-42500 trauma victims). They may be associated with fractures of the facial skeleton. Their symptoms are variable ranging from obvious airway obstruction to minor or almost missing symptoms. Early diagnosis and proper initial management may sometimes be difficult or delayed. PATIENTS Three patients with maxillofacial fractures and concomitant laryngotracheal injuries are presented. The diagnostic procedures used and the management of these injuries are reported. DISCUSSION AND CONCLUSION Due to their low incidence and their hidden nature laryngotracheal injuries may pose diagnostic problems, especially in polytraumatized or intubated patients. Subcutaneous emphysema is the chief clinical sign. Fibreoptic endoscopy is the most important and informative diagnostic examination. Radiographic evaluation by CT scan provides additional information about the extent of the injury and the indication for surgery. A coordinated team approach is necessary for proper management of these injuries.
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Radny P, Caroli UM, Bauer J, Paul T, Schlegel C, Eigentler TK, Weide B, Schwarz M, Garbe C. Phase II trial of intralesional therapy with interleukin-2 in soft-tissue melanoma metastases. Br J Cancer 2003; 89:1620-6. [PMID: 14583759 PMCID: PMC2394422 DOI: 10.1038/sj.bjc.6601320] [Citation(s) in RCA: 137] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The objective of the present study was to validate the use of intralesional injection of interleukin-2 (IL-2) in patients with skin and soft-tissue melanoma metastases. A total of 24 patients with AJCC stage III or IV melanoma and single or multiple skin and soft-tissue metastases were included. Interleukin-2 injections were administered intralesionally into the total number of cutaneous and soft-tissue metastases accessible from the skin, 2-3 times weekly, over 1-57 weeks. Single doses varied from 0.6 to 6 x 10(6) IU, depending on lesion size. The clinical response was monitored by sonography and confirmed by histopathology; response evaluation was confined to the intralesionally treated tumours. Complete response (CR) of the treated metastases was achieved in 15 patients (62.5%), the longest remission lasting 38 months to date. In five patients, partial response (PR) was achieved (21%) and in another three patients, progressive disease was observed (one patient not assessable). A total of 245 metastases were treated with CR in 209 (85%), and PR in 21 (6%). The therapy was generally well tolerated; the observed adverse events were mainly of grade 1-2 severity. Immunohistochemical studies showed the tumour cells undergoing apoptosis and revealed a mixed character of the inflammatory infiltrate. The unusual high CR rate in metastatic melanoma of 62.5% and the limited toxicity suggest that treatment of skin and soft-tissue melanoma metastases with intralesional injection of IL-2 may be a safe and effective alternative to conventional therapies. The optimal dosage and duration of this therapy still remain to be defined in larger prospective multicentre trials.
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Affiliation(s)
- P Radny
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
| | - U M Caroli
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
| | - J Bauer
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
| | - T Paul
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
| | - C Schlegel
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
| | - T K Eigentler
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
| | - B Weide
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
| | - M Schwarz
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
| | - C Garbe
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany
- Department of Dermatology, Eberhard-Karls-University, Liebermeistersraße 20, Tübingen 72076, Germany. E-mail:
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Abstract
A congenital laryngotracheo-oesophageal cleft is a rare airway malformation which results from incomplete separation of the larynx and trachea from the hypopharynx and oesophagus. Patients usually present with stridor, aspiration and cyanosis associated with feeding. For early diagnosis, a high index of suspicion is needed. Unless an appropriate diagnostic approach is taken, the diagnosis can be missed. The successful ventilation of a neonate with the Laryngeal Mask Airway is described.
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Affiliation(s)
- Martin Jöhr
- Department of Anaesthesia, Children's, Luzern, Switzerland.
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35
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Segond von Banchet G, Pastor A, Biskup C, Schlegel C, Benndorf K, Schaible HG. Localization of functional calcitonin gene-related peptide binding sites in a subpopulation of cultured dorsal root ganglion neurons. Neuroscience 2002; 110:131-45. [PMID: 11882378 DOI: 10.1016/s0306-4522(01)00547-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study we investigated whether cultured dorsal root ganglion (DRG) neurons from the adult rat express binding sites for calcitonin gene-related peptide (CGRP). These were identified on fixed cells by using CGRP labeled at the N-terminal site with 1.4-nm gold particles. After 1 day in culture, about 20% of small to medium-sized DRG neurons showed CGRP-gold binding. Binding of CGRP-gold was dose-dependently reduced by coadministration of CGRP. The calcium imaging technique in living cells revealed that the bath administration of CGRP evoked an increase of the intracellular calcium in up to 30% of the DRG neurons tested. Both depletion of intracellular calcium stores by thapsigargin or using a calcium-free medium blocked the CGRP-mediated increase of cytosolic calcium in most neurons. Thus intracellular and extracellular sources of calcium are relevant for the CGRP response. Using the whole-cell patch-clamp technique, about 30% of the neurons were found to exhibit an inward current and a depolarization upon administration of CGRP close to the neurons. Immunocytochemical double-labeling techniques showed that most of the CGRP-gold binding sites were expressed in unmyelinated (neurofilament 200-negative) DRG neurons. Most of the neurons with CGRP-gold binding sites also expressed the tyrosine kinase A receptor, and all of them showed CGRP-like immunoreactivity. This study shows, therefore, that a subpopulation of unmyelinated, peptidergic primary afferent neurons express CGRP binding sites that can be activated by CGRP in an excitatory direction. The binding sites may serve as autoreceptors because all of these neurons also synthesize CGRP. The activation of CGRP binding sites may sensitize primary afferent neurons and influence the release of mediators.
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MESH Headings
- Animals
- Autoreceptors/drug effects
- Autoreceptors/metabolism
- Binding Sites/drug effects
- Binding Sites/physiology
- Calcitonin Gene-Related Peptide/metabolism
- Calcitonin Gene-Related Peptide/pharmacology
- Calcium/metabolism
- Calcium Signaling/drug effects
- Calcium Signaling/physiology
- Cells, Cultured
- Cytosol/drug effects
- Cytosol/metabolism
- Ganglia, Spinal/cytology
- Ganglia, Spinal/drug effects
- Ganglia, Spinal/metabolism
- Gold Compounds
- Immunohistochemistry
- Male
- Membrane Potentials/drug effects
- Membrane Potentials/physiology
- Neurofilament Proteins/metabolism
- Neurons, Afferent/cytology
- Neurons, Afferent/drug effects
- Neurons, Afferent/metabolism
- Rats
- Rats, Wistar
- Receptor, trkA/metabolism
- Receptors, Calcitonin Gene-Related Peptide/drug effects
- Receptors, Calcitonin Gene-Related Peptide/metabolism
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Affiliation(s)
- G Segond von Banchet
- Institut für Physiologie I, Universität Jena, Teichgraben 8, D-07740 Jena, Germany
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36
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Leistenschneider A, Aumann T, Boretzky K, Cortina D, Cub J, Datta Pramanik U, Dostal W, Elze TW, Emling H, Geissel H, Grünschloss A, Hellstr M, Holzmann R, Ilievski S, Iwasa N, Kaspar M, Kleinböhl A, Kratz JV, Kulessa R, Leifels Y, Lubkiewicz E, Münzenberg G, Reiter P, Rejmund M, Scheidenberger C, Schlegel C, Simon H, Stroth J, Sümmerer K, Wajda E, Walús W, Wan S. Photoneutron cross sections for unstable neutron-rich oxygen isotopes. Phys Rev Lett 2001; 86:5442-5445. [PMID: 11415271 DOI: 10.1103/physrevlett.86.5442] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2000] [Indexed: 05/23/2023]
Abstract
The dipole response of stable and unstable neutron-rich oxygen nuclei of masses A = 17 to A = 22 has been investigated experimentally utilizing electromagnetic excitation in heavy-ion collisions at beam energies about 600 MeV/nucleon. A kinematically complete measurement of the neutron decay channel in inelastic scattering of the secondary beam projectiles from a Pb target was performed. Differential electromagnetic excitation cross sections d sigma/dE were derived up to 30 MeV excitation energy. In contrast to stable nuclei, the deduced dipole strength distribution appears to be strongly fragmented and systematically exhibits a considerable fraction of low-lying strength.
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Affiliation(s)
- A Leistenschneider
- Institut für Kernphysik, Johann Wolfgang Goethe-Universität, D-60486 Frankfurt, Germany
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37
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Rusterholz D, Schlegel C. [Infectious aspects of Wegener's granulomatosis]. Schweiz Med Wochenschr 2001; Suppl 125:41S-43S. [PMID: 11141937] [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] [Indexed: 02/18/2023]
Abstract
INTRODUCTION Because of manifestation of Wegener's granulomatosis in the upper respiratory tract the ENT-specialist is often initially involved in diagnosis. Recent research results suppose the chronic nasal carriage of Staphylococcus aureus triggering relapse rate in Wegener's granulomatosis. The adequate therapy of this bacteria as chronic nasal carriage may reduce the number of relapses in patients with Wegener's granulomatosis in remission. PATIENT An illustrative case report shows the positive effect of prolonged treatment with cotrimoxazole in a 49-year-old male with a second relapse of Wegener's granulomatosis. RESULTS The prolonged treatment of cotrimoxazole reduced the dose of cyclophosphamid and glucocorticoids which show long-term side effects. DISCUSSION 15 years ago a positive effect of cotrimoxazole to Wegener's granulomatosis was discussed. Later immunological and clinical studies confirmed this fact. Prolonged treatment with cotrimoxazole seems to reduce the number of relapses in patients with this chronic disease. Corresponding with our case reduction of the systemic therapy with cyclophosphamid and glucocorticoids is possible.
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Affiliation(s)
- D Rusterholz
- Klinik für Hals-, Nasen- und Ohrenkrankheiten, Hals- und Gesichtschirurgie, Kantonsspital Luzern
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38
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Reimers M, Vavrina J, Schlegel C. [Results after shock wave lithotripsy for salivary gland stones]. Schweiz Med Wochenschr 2001; Suppl 125:122S-126S. [PMID: 11141926] [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] [Indexed: 02/18/2023]
Abstract
INTRODUCTION Extracorporeal shock wave lithotripsy for salivary gland stones was not introduced until 1989 as a new treatment modality. Follow-up studies years after treatment are lacking. METHODS Follow-up study from February to March 2000 of 71 (91%) of all 78 patients who had extracorporeal shock wave lithotripsy for salivary gland stones at our clinic between March 1996 and November 1998. RESULTS Over 2 years after treatment (mean 27 months, range 12-48 months), 13 (48%) of 27 patients with parotid stones are free of stones and symptoms and 17 (63%) are free of symptoms. In 44 patients with submandibular stones, 13 (29%) are free of stones and symptoms and 23 (52%) are free of symptoms. For residual symptoms, 9 (20%) patients had submandibulectomy whereas no parotidectomy had to be performed. 5 patients with residual stones after treatment showed increased stone size in sonography, and one patient with a stone-free interval for 3 years had a local recurrence. DISCUSSION Extracorporeal shock wave lithotripsy is often the treatment of choice for parotid stones and the recommended conservative treatment option for smaller submandibular stones. Limitation to the common, larger submandibular stones diminishes the general value of this modality, which needs to be established in comparison with endoscopic techniques in further studies. Residual stones after treatment may cause new symptoms over time, but only in one case was renewed stone formation observed.
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Affiliation(s)
- M Reimers
- Klinik für Hals-, Nasen-, Ohren- und Gesichtschirurgie, Kantonsspital Luzern
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39
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Trefzer U, Schlegel C, Sterry W, Späth-Schwalbe E, Possinger K, Denkert C. Fulminant intravascular disseminating malignant melanoma mimicking acute leukemia. Blood 1999; 94:1483-4. [PMID: 10484637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
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40
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Abstract
The complex dielectric properties of canine skeletal muscles were measured at 25 degrees C during ischemia in the frequency range from 50 Hz to 200 MHz. The dielectric spectrum of skeletal muscle shows an alpha-dispersion below 1 kHz and a beta-dispersion with a relaxation frequency of about 100 kHz. The alpha-dispersion disappears between 450 and 500 min of ischemia time, the same time during which mechanical contraction was observed, and was restored later. During ischemia, the beta-dispersion is shifted continuously to higher frequencies; and at frequencies above 50 MHz, a decrease of the real part of the dielectric permittivity was measured. The dielectric loss factor decreases during ischemia at frequencies below 500 kHz, only interrupted by a short increase, coinciding with the disappearance of the alpha-dispersion. The principal processes that happen during ischemia inside the skeletal muscle tissues were studied with the help of a model especially designed to simulate membrane effects on the dielectric spectrum. The disappearance of the alpha-dispersion is explained by an increase of conductivity in the membrane of the sarcoplasmic reticulum. Shifting beta-dispersion to higher frequencies is a result of metabolically produced ions and therefore increasing conductivity of the intracellular medium. Decreasing dielectric permittivity at frequencies above 50 MHz and decreasing dielectric loss factor at low frequencies are caused by the cell edema.
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Affiliation(s)
- M Schäfer
- Department of Experimental Surgery, University of Heidelberg, Germany
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41
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Abstract
A mother and her two daughters are reported with bilateral conductive deafness due to incudo-stapedial abnormalities, and microtia with thickened ear lobes. This pattern of abnormal findings, transmitted with an autosomal dominant mode of inheritance, is characteristic of the Escher-Hirt syndrome. One of the daughters died from an additional cardiac malformation (VSD). Anomalies of the middle ear were demonstrated in the surviving patients by computed tomography. Differential diagnosis with other genetic syndromes associated with deafness, and possible therapeutic approaches are discussed.
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Affiliation(s)
- D Kotzot
- Institute of Medical Genetics, University of Zürich
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42
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Beer S, Schlegel C, Hasegawa A. [Conservative therapy in thoracic outlet syndrome. Literature review and pathogenetic considerations]. Schweiz Med Wochenschr 1997; 127:617-22. [PMID: 9198887] [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] [Indexed: 02/04/2023]
Abstract
Due to the broad clinical presentation and the lack of generally accepted diagnostic criteria, thoracic outlet syndrome (TOS) is a disputed diagnosis. Various surgical techniques have been described and investigated as treatment for TOS, whereas only a few studies have reported the outcome after a conservative approach. Based on the literature, the pathophysiology of TOS and the impact of conservative therapy are discussed. Our personal experience has shown that after early diagnosis and implementation this treatment is a safe and valuable therapeutical option in TOS based on the correction of a postural and functional disturbance of the upper thoracic aperture underlying the pathogenic process. Successful conservative treatment may also be considered as further diagnostic evidence for TOS.
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Affiliation(s)
- S Beer
- Rheuma- und Rehabilitationszentrum, Valens
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43
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Vavrina J, Müller W, Schlegel C. [Lithotripsy in the conservative treatment of salivary stones]. Praxis (Bern 1994) 1997; 86:524-528. [PMID: 9157498] [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] [Indexed: 05/22/2023]
Abstract
Otolaryngologists and generalists as well are commonly involved in the evaluation and management of salivary gland stones. Most patients present with a history of recurrent swelling and pain in the gland, associated with eating. Up to date conservative therapy was limited to the treatment of the acute sialadenitis, which may develop as a consequence of the obstruction and often recurs until the function of the salivary gland ceases. Surgical treatment depends on the location of the calculus. Distal stones can be removed trans-orally by dilatation or incision of the duct, whereas those near the hilus and intraglandular stones required excision of the gland, including the disadvantage of a scar and the risk of injury to cranial nerves. Extracorporal shock wave lithotripsy is a new noninvasive method, which allows to destroy intra- and extraglandular salivary stones, mostly without the need of local or general anesthesia. Reported disintegration rates vary from 14% to 85%, depending on site and size of the calculus. About 80% of the patients remain symptomless Lithotripsy of salivary stones is a cost-effective, additional treatment modality to surgery and may be employed on an outpatient basis.
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Affiliation(s)
- J Vavrina
- Klinik für Hals-, Nasen-, Ohren- und Gesichtschirurgie, Kantonsspital Luzern
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44
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Affiliation(s)
- T E Linder
- Department of Otorhinolaryngology, Head and Neck Surgery, Kantonsspital Lucerne, Switzerland
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45
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Eberth J, Enders J, Esser L, Herzberg R, Huxel N, Meise H, Nicolay N, Pietralla N, Prade H, Reif J, Richter A, Schlegel C, Schwengner R, Skoda S, Thomas HG, Wiedenhöver I, Winter G, Zilges A. First observation of the scissors mode in a gamma -soft nucleus: The case of 196Pt. Phys Rev Lett 1996; 76:2029-2032. [PMID: 10060588 DOI: 10.1103/physrevlett.76.2029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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46
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Schlegel C, Neumeyer F, Richter A, Strauch S, Dasso CH, Peterson RJ. Depopulation of 180Tam by Coulomb excitation and possible astrophysical consequences. Phys Rev C Nucl Phys 1994; 50:2198-2204. [PMID: 9969898 DOI: 10.1103/physrevc.50.2198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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47
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Carroll JJ, Collins CB, Heyde K, Huber M, Ponomarev VY, Richmond DG, Richter A, Schlegel C, Sinor TW, Taylor KN. Intermediate structure in the photoexcitation of 77Sem, 79Brm, and 137Bam. Phys Rev C Nucl Phys 1993; 48:2238-2245. [PMID: 9969076 DOI: 10.1103/physrevc.48.2238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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48
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Hoppeler H, Kleinert E, Schlegel C, Claassen H, Howald H, Kayar SR, Cerretelli P. Morphological adaptations of human skeletal muscle to chronic hypoxia. Int J Sports Med 1990; 11 Suppl 1:S3-9. [PMID: 2323861 DOI: 10.1055/s-2007-1024846] [Citation(s) in RCA: 195] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Muscle structural changes during typical mountaineering expeditions to the Himalayas were assessed by taking muscle biopsies from 14 mountaineers before and after their sojourn at high altitude (greater than 5000 m for over 8 weeks). M. vastus lateralis samples were analyzed morphometrically from electron micrographs. A significant reduction (-10%) of muscle cross-sectional area was found on CT scans of the thigh. Morphologically this loss in muscle mass appeared as a decrease in muscle fiber size mainly due to a loss of myofibrillar proteins. A loss of muscle oxidative capacity was also evident, as indicated by a decrease in the volume of muscle mitochondria (-25%). In contrast, the capillary network was mostly spared from catabolism. It is therefore concluded that oxygen availability to muscle mitochondria after prolonged high-altitude exposure in humans is improved due to an unchanged capillary network, supplying a reduced muscle oxidative capacity.
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Affiliation(s)
- H Hoppeler
- Department of Anatomy, University of Berne, Switzerland
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49
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Hofmann B, Trenckmann H, Schlegel C. [Course and prognosis of pregnancy, delivery and childbirth in patients with congenital heart defects]. Z Gesamte Inn Med 1981; 36:810-4. [PMID: 7331381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
On the conditions of an optimal therapy and with reference to certain contraindications the prognosis of patients with congenital heart diseases and their children scarcely differs from that of the normal population during gestation. The rate of decompensation in pregnancy was 4.1%, with 3.9% the rate of gestosis was significantly below that of the other patients. The perinatal mortality of the children of patients with congenital vitium cordis os 2.23%, the rate of newborn of 11.2% and the proportion of hypotrophic children of 8.38% were also not increased compared with the totality. By changed diagnostic and therapeutic conditions the relation of the congenital to the acquired vitia cordis has much altered in favour of the congenital ones. With a high proportion of women who underwent an operation of the heart among our patients the results shows that, apart from the already generally accepted absolute contraindications for a pregnancy, the prognosis for patients with stenoses of the outlet is clearly worse than that of the patients with other congenital heart diseases.
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50
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Vogtmann C, Böttcher H, Raue W, Schlegel C, Ruckhäberle KE, Richter T. [Development of mortality of low birth weight newborn infants the years 1969-1980]. Kinderarztl Prax 1981; 49:394-402. [PMID: 7289410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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