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Matta RE, Berger L, Loehlein M, Leven L, Taxis J, Wichmann M, Motel C. Stress Distribution within the Peri-Implant Bone for Different Implant Materials Obtained by Digital Image Correlation. Materials (Basel) 2024; 17:2161. [PMID: 38730967 PMCID: PMC11085640 DOI: 10.3390/ma17092161] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/23/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024]
Abstract
Stress distribution and its magnitude during loading heavily influence the osseointegration of dental implants. Currently, no high-resolution, three-dimensional method of directly measuring these biomechanical processes in the peri-implant bone is available. The aim of this study was to measure the influence of different implant materials on stress distribution in the peri-implant bone. Using the three-dimensional ARAMIS camera system, surface strain in the peri-implant bone area was compared under simulated masticatory forces of 300 N in axial and non-axial directions for titanium implants and zirconia implants. The investigated titanium implants led to a more homogeneous stress distribution than the investigated zirconia implants. Non-axial forces led to greater surface strain on the peri-implant bone than axial forces. Thus, the implant material, implant system, and direction of force could have a significant influence on biomechanical processes and osseointegration within the peri-implant bone.
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Affiliation(s)
- Ragai Edward Matta
- Dental Clinic 2-Dental Prosthodontics, University Hospital Erlangen, Glueckstrasse 11, 91054 Erlangen, Germany; (L.B.); (M.L.); (L.L.); (M.W.); (C.M.)
| | - Lara Berger
- Dental Clinic 2-Dental Prosthodontics, University Hospital Erlangen, Glueckstrasse 11, 91054 Erlangen, Germany; (L.B.); (M.L.); (L.L.); (M.W.); (C.M.)
| | - Moritz Loehlein
- Dental Clinic 2-Dental Prosthodontics, University Hospital Erlangen, Glueckstrasse 11, 91054 Erlangen, Germany; (L.B.); (M.L.); (L.L.); (M.W.); (C.M.)
| | - Linus Leven
- Dental Clinic 2-Dental Prosthodontics, University Hospital Erlangen, Glueckstrasse 11, 91054 Erlangen, Germany; (L.B.); (M.L.); (L.L.); (M.W.); (C.M.)
| | - Juergen Taxis
- Clinic for Oro- and Maxillofacial Surgery, University hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany;
| | - Manfred Wichmann
- Dental Clinic 2-Dental Prosthodontics, University Hospital Erlangen, Glueckstrasse 11, 91054 Erlangen, Germany; (L.B.); (M.L.); (L.L.); (M.W.); (C.M.)
| | - Constantin Motel
- Dental Clinic 2-Dental Prosthodontics, University Hospital Erlangen, Glueckstrasse 11, 91054 Erlangen, Germany; (L.B.); (M.L.); (L.L.); (M.W.); (C.M.)
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Berger L, Matta RE, Weiß CM, Adler W, Wichmann M, Zorzin JI. Effect of Luting Materials on the Accuracy of Fit of Zirconia Copings: A Non-Destructive Digital Analysis Method. Materials (Basel) 2024; 17:2130. [PMID: 38730936 PMCID: PMC11084802 DOI: 10.3390/ma17092130] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024]
Abstract
The marginal accuracy of fit between prosthetic restorations and abutment teeth represents an essential aspect with regard to long-term clinical success. Since the final gap is also influenced by the luting techniques and materials applied, this study analyzed the accuracy of the fit of single-tooth zirconia copings before and after cementation using different luting materials. Forty plaster dies with a corresponding zirconia coping were manufactured based on a single tooth chamfer preparation. The copings were luted on the plaster dies (n = 10 per luting material) with a zinc phosphate (A), glass-ionomer (B), self-adhesive resin (C), or resin-modified glass-ionomer cement (D). The accuracy of fit for each coping was assessed using a non-destructive digital method. Intragroup statistical analysis was conducted using Wilcoxon signed rank tests and intergroup analysis by Kruskal-Wallis and Mann-Whitney U tests (α = 0.05). Accuracy of fit was significantly different before/after cementation within A (0.033/0.110 µm) and B (0.035/0.118 µm; p = 0.002). A had a significantly increased marginal gap compared to C and D, and B compared to C and D (p ≤ 0.001). Significantly increased vertical discrepancies between A and B versus C and D (p < 0.001) were assessed. Of the materials under investigation, the zinc phosphate cement led to increased vertical marginal discrepancies, whereas the self-adhesive resin cement did not influence the restoration fit.
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Affiliation(s)
- Lara Berger
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (L.B.); (C.M.W.)
| | - Ragai-Edward Matta
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (L.B.); (C.M.W.)
| | - Christian Markus Weiß
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (L.B.); (C.M.W.)
| | - Werner Adler
- Institute of Medical Informatics, Biometry and Epidemiology (IMBE) of the Friedrich-Alexander-University, Erlangen-Nuremberg, Waldstrasse 6, 91054 Erlangen, Germany;
| | - Manfred Wichmann
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (L.B.); (C.M.W.)
| | - José Ignacio Zorzin
- Dental Clinic 1—Department of Operative Dentistry and Periodontology, Erlangen University Hospital, Glueckstrasse 11, 91054 Erlangen, Germany;
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Kropfeld J, Berger L, Adler W, Schulz KL, Motel C, Wichmann M, Matta RE. Impact of Scanbody Geometry and CAD Software on Determining 3D Implant Position. Dent J (Basel) 2024; 12:94. [PMID: 38668006 PMCID: PMC11049057 DOI: 10.3390/dj12040094] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/28/2024] [Accepted: 03/31/2024] [Indexed: 04/28/2024] Open
Abstract
The implementation of CAD software in the digital production of implant prosthetics stands as a pivotal aspect of clinical dentistry, necessitating high precision in the alignment of implant scanbodies. This study investigates the influence of scanbody geometry and the method of superimposing in CAD software when determining 3D implant position. A standardized titanium model with three bone-level implants was digitized to create reference STL files, and 10 intraoral scans were performed on Medentika and NT-Trading scanbodies. To determine implant position, the generated STL files were imported into the Exocad CAD software and superimposed-automatically and manually-with the scanbody geometries stored within the software's shape library. Position accuracy was determined by a comparison of the 3D-defined scanbody points from the STL matching files with those from the reference STL files. The R statistical software was used for the evaluation of the data. In addition, mixed linear models and a significance level of 0.05 were applied to calculate the p-values. The manual overlay method was significantly more accurate than the automatic overlays for both scanbody types. The Medentika scanbodies showed slightly superior precision compared to the NT-Trading scanbodies. Both scanbody geometry and the type of alignment in the CAD software significantly affect digital workflow accuracy. Manual verification and adjustment of the automatic alignment process are essential for precise implant positioning.
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Affiliation(s)
- Judith Kropfeld
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (J.K.); (L.B.); (C.M.); (M.W.)
| | - Lara Berger
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (J.K.); (L.B.); (C.M.); (M.W.)
| | - Werner Adler
- Institute of Medical Informatics, Biometry and Epidemiology (IMBE) of the Friedrich-Alexander-University, Erlangen-Nuremberg, Waldstrasse 6, 91054 Erlangen, Germany;
| | - Katja Leonie Schulz
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany;
| | - Constantin Motel
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (J.K.); (L.B.); (C.M.); (M.W.)
| | - Manfred Wichmann
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (J.K.); (L.B.); (C.M.); (M.W.)
| | - Ragai Edward Matta
- Department of Prosthodontics, University Hospital Erlangen, Glückstrasse 11, 91054 Erlangen, Germany; (J.K.); (L.B.); (C.M.); (M.W.)
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Gandor F, Berger L, Gruber D, Warnecke T, Vogel A, Claus I. [Dysphagia in Parkinsonian Syndromes]. Nervenarzt 2023; 94:685-693. [PMID: 37115255 DOI: 10.1007/s00115-023-01475-7] [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] [Accepted: 03/08/2023] [Indexed: 04/29/2023]
Abstract
Dysphagia is a clinically relevant problem in Parkinson's disease as well as in atypical Parkinsonian syndromes, such as multiple system atrophy and diseases from the spectrum of 4‑repeat tauopathies, which affect most patients to a varying degree in the course of their disease. This results in relevant restrictions in daily life due to impaired intake of food, fluids, and medication with a subsequent reduction in quality of life. This article not only gives an overview of the pathophysiological causes of dysphagia in the various Parkinson syndromes, but also presents screening, diagnostic and treatment procedures that have been investigated for the different diseases.
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Affiliation(s)
- F Gandor
- Neurologisches Fachkrankenhaus für Bewegungsstörungen/Parkinson, Str. nach Fichtenwalde 16, 14547, Beelitz-Heilstätten, Deutschland.
- Klinik für Neurologie, Otto-von-Guericke Universität Magdeburg, Magdeburg, Deutschland.
| | - L Berger
- Neurologisches Fachkrankenhaus für Bewegungsstörungen/Parkinson, Str. nach Fichtenwalde 16, 14547, Beelitz-Heilstätten, Deutschland
- Klinik für Neurologie, Otto-von-Guericke Universität Magdeburg, Magdeburg, Deutschland
| | - D Gruber
- Neurologisches Fachkrankenhaus für Bewegungsstörungen/Parkinson, Str. nach Fichtenwalde 16, 14547, Beelitz-Heilstätten, Deutschland
- Klinik für Neurologie, Otto-von-Guericke Universität Magdeburg, Magdeburg, Deutschland
| | - T Warnecke
- Klinik für Neurologie und neurologische Frührehabilitation, Klinikum Osnabrück, Osnabrück, Deutschland
| | - A Vogel
- Neurologisches Fachkrankenhaus für Bewegungsstörungen/Parkinson, Str. nach Fichtenwalde 16, 14547, Beelitz-Heilstätten, Deutschland
| | - I Claus
- Klinik für Neurologie mit Institut für translationale Neurologie, Universitätsklinikum Münster, Münster, Deutschland
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Marek R, Eichler J, Schwarze UY, Fischerauer S, Suljevic O, Berger L, Löffler JF, Uggowitzer PJ, Weinberg AM. Long-term in vivo degradation of Mg-Zn-Ca elastic stable intramedullary nails and their influence on the physis of juvenile sheep. Biomater Adv 2023; 150:213417. [PMID: 37087913 DOI: 10.1016/j.bioadv.2023.213417] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 01/28/2023] [Accepted: 03/31/2023] [Indexed: 04/25/2023]
Abstract
The use of bioresorbable magnesium (Mg)-based elastic stable intramedullary nails (ESIN) is highly promising for the treatment of pediatric long-bone fractures. Being fully resorbable, a removal surgery is not required, preventing repeated physical and psychological stress for the child. Further, the osteoconductive properties of the material support fracture healing. Nowadays, ESIN are exclusively implanted in a non-transphyseal manner to prevent growth discrepancies, although transphyseal implantation would often be required to guarantee optimized fracture stabilization. Here, we investigated the influence of trans-epiphyseally implanted Mg-Zinc (Zn)-Calcium (Ca) ESIN on the proximal tibial physis of juvenile sheep over a period of three years, until skeletal maturity was reached. We used the two alloying systems ZX10 (Mg-1Zn-0.3Ca, in wt%) and ZX00 (Mg-0.3Zn-0.4Ca, in wt%) for this study. To elaborate potential growth disturbances such as leg-length differences and axis deviations we used a combination of in vivo clinical computed tomography (cCT) and ex vivo micro CT (μCT), and also performed histology studies on the extracted bones to obtain information on the related tissue. Because there is a lack of long-term data regarding the degradation performance of magnesium-based implants, we used cCT and μCT data to evaluate the implant volume, gas volume and degradation rate of both alloying systems over a period of 148 weeks. We show that transepiphyseal implantation of Mg-Zn-Ca ESIN has no negative influence on the longitudinal bone growth in juvenile sheep, and that there is no axis deviation observed in all cases. We also illustrate that 95 % of the ESIN degraded over nearly three years, converging the time point of full resorption. We thus conclude that both, ZX10 and ZX00, constitute promising implant materials for the ESIN technique.
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Affiliation(s)
- R Marek
- Department of Orthopaedics and Traumatology, Medical University of Graz, 8010 Graz, Austria.
| | - J Eichler
- Department of Orthopaedics and Traumatology, Medical University of Graz, 8010 Graz, Austria
| | - U Y Schwarze
- Department of Orthopaedics and Traumatology, Medical University of Graz, 8010 Graz, Austria; Department of Dental Medicine and Oral Health, Medical University of Graz, 8010 Graz, Austria
| | - S Fischerauer
- Department of Orthopaedics and Traumatology, Medical University of Graz, 8010 Graz, Austria
| | - O Suljevic
- Department of Orthopaedics and Traumatology, Medical University of Graz, 8010 Graz, Austria
| | - L Berger
- Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - J F Löffler
- Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
| | - P J Uggowitzer
- Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, 8093 Zurich, Switzerland; Chair of Nonferrous Metallurgy, Montanuniversitaet Leoben, 8700 Leoben, Austria
| | - A-M Weinberg
- Department of Orthopaedics and Traumatology, Medical University of Graz, 8010 Graz, Austria
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Abu-Hossin S, Onbasi Y, Berger L, Troll F, Adler W, Wichmann M, Matta RE. Comparison of digital and visual tooth shade selection. Clin Exp Dent Res 2023; 9:368-374. [PMID: 36780185 PMCID: PMC10098283 DOI: 10.1002/cre2.721] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 09/06/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 02/14/2023] Open
Abstract
OBJECTIVE In dental restorations, color determination is very important for achieving esthetic results. The aim of this study was to compare visual shade selection using digital methods and to assess the repeatability of the utilized intraoral scanners. MATERIALS AND METHODS In 31 probands, tooth color was determined on teeth 11, 13, and 16. Shade selection was performed visually by a dentist and digitally using Trios 3 and Cerec Omnicam. Three measurements were performed to determine the repeatability of intraoral scanners. Fleiss' κ was used for statistical evaluation of the repeatability and Cohen's κ was used for comparison of methods. RESULTS The visual method showed only slight agreement with Trios 3 (Cohen's κ: 0.198) and Cerec Omnicam (Cohen's κ: 0.115). Moderate agreement was found between Trios 3 and Cerec Omnicam (Cohen's κ: 0.452). In terms of repeatability, Trios 3 scored higher overall than Cerec Omnicam (Fleiss' κ: 0.612 vs. 0.474). CONCLUSION Intraoral scanners can facilitate the workflow in clinical practice. They are a good supplement for color determination, but should additionally be confirmed by the visual method. Clinical significance: The use of digital instruments is increasingly being preferred over conventional treatments. Therefore, it is essential to continuously improve the accuracy of intraoral scanners for color selection in order to offer an alternative to visual methods.
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Affiliation(s)
- Sabrin Abu-Hossin
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
| | - Yonca Onbasi
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
| | - Lara Berger
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
| | - Florian Troll
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
| | - Werner Adler
- Department of Medical Informatics, Biometry and Epidemiology, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Manfred Wichmann
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
| | - Ragai-Edward Matta
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
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Frías-Álvareza P, Webb R, Brannelly L, Woodley KR, Skerratt LF, Berger L, Paris DBBP. 31 Chytridiomycosis reduces sperm production in young southern corroboree frogs. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab31] [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: 12/12/2022] Open
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Davidson MJ, Bushell R, Ploeg R, Marenda M, Halliday C, Goodall D, Gilbert D, Kosch TA, Skerratt LF, Berger L. Embryo mortality in a captive-bred, Critically Endangered amphibian. Dis Aquat Organ 2022; 152:73-83. [PMID: 36453456 DOI: 10.3354/dao03706] [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: 06/17/2023]
Abstract
The Critically Endangered southern corroboree frog Pseudophryne corroboree is dependent upon captive assurance colonies for its continued survival. Although the captive breeding programme for this species has largely been successful, embryonic mortality remains high (40-90% per year). This study aimed to investigate the causes of mortality in P. corroboree embryos in the captive collection at Melbourne Zoo. During the 2021 breeding season, we investigated 108 abnormal embryos to determine the impact of infections and anatomical deformities on survival and used culture and molecular methods to identify microbes. Overall, 100% of abnormal embryos had fungal infections, and of these, 41.6% also had anatomical deformities. The mortality rate in abnormal embryos was 89.8%; however, we detected no difference in survival in any of the 3 observed fungal growth patterns or between deformed and non-deformed embryos. Sanger sequencing of the ITS region identified fungal isolates belonging to the genus Ilyonectria, the first record in a vertebrate host, and another as a Plectosphaerella sp., which is the first record of infection in an embryo. Dominant bacteria identified were of the genera Herbaspirillum and Flavobacterium; however, their role in the mortality is unknown. Fungal infection and deformities have a significant impact on embryo survival in captive-bred P. corroboree. In a species which relies on captive breeding, identifying and reducing the impacts of embryonic mortality can inform conservation efforts and improve reintroduction outcomes.
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Affiliation(s)
- M J Davidson
- Faculty of Veterinary and Agricultural Science, University of Melbourne, Werribee, Victoria 3030, Australia
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Berger L, Adler W, Kreuzer MMK, Wichmann M, Matta RE. Comparison of Digital and Conventional Impressions Based on the 3D Fit of Crowns. INT J PROSTHODONT 2022; 35:801-808. [PMID: 36645864 DOI: 10.11607/ijp.7652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE To evaluate intraoral scanners, scannable impression materials, and conventional methods for impression-taking with regard to precision and accuracy. MATERIALS AND METHODS Ten impressions per technique were initially taken from a cobalt-chromium (Co-Cr) master model (chamfer preparation for the maxillary right first molar) for fabricating Co-Cr crown copings. The test specimens, their respective metal master model, and the plaster casts from the conventional impressions were then digitized with the light-optical Atos Triple Scanner. The fit of the dental crown copings was measured in two and three dimensions using computer-aided design software. Global differences between the methods were determined using Kruskal-Wallis test, and pairwise comparisons were performed with Mann-Whitney U test. The significance level was set at .05. RESULTS The 2D analysis showed that the average absolute marginal distance of the crown copings was 0.026 mm when fabricated with the digital impression method and 0.038 mm when fabricated with the conventional method (P = .028). However, the 3D analysis revealed that the conventional group had a smaller marginal gap (0.028 mm) compared to the digital group (0.06 mm; P = .015). CONCLUSION This study showed that, in the field of single-crown prosthetics, digital impressions and the use of scannable impression material could serve as alternatives to conventional methods in the future.
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Seidel A, Schmitt C, Matta RE, Buchbender M, Wichmann M, Berger L. Investigation of the palatal soft tissue volume: a 3D virtual analysis for digital workflows and presurgical planning. BMC Oral Health 2022; 22:361. [PMID: 35999531 PMCID: PMC9400256 DOI: 10.1186/s12903-022-02391-z] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/11/2022] [Indexed: 12/04/2022] Open
Abstract
Background In mucogingival and implant surgery, an autologous soft tissue graft from the palate is the gold standard for reconstructing missing keratinised soft tissue and volume. Previously, presurgical measurements of the graft harvesting site were described with two-dimensional (2D) linear measurements. The present observational clinical study aimed to evaluate a three-dimensional (3D) measurement method for determining the present palatal soft tissue volume for each patient individually. Methods Pre-existing cone beam computed tomography (CBCT) scans of 20 patients were converted into 3D Standard Tessellation Language models of the bone surface. Intraoral impressions of the maxilla were taken and digitised to visualise the gingival surface. The resulting virtual models of bone (reference value) and gingival (actual value) surfaces were merged, with tooth surfaces used for registration. The region between the central incisors and the hard palate was subdivided into 5 regions of interest (ROIs). The distance between palatal bone and gingival surface was analysed both volumetrically and linearly, and the results were statistically evaluated for the ROIs.
Results The average gingival surface area on the palate was 19.1 cm2, and the mean volume was 58.2 cm3 (± 16.89). Among the ROIs, the mean linear value was highest in the most distal region, from the second molar to the hard palate (4.0 ± 1.09 mm) and lowest in the canine region (1.9 ± 0.63 mm). For mean distance, significant differences were found for the anterior palate and the most posterior palate in comparison with all other ROIs (p < 0.01). The volume measurements also declined significantly and steadily between the posterior (1.9 ± 1.0 cm3) and anterior palates (0.4 ± 0.2 cm3). Conclusions By merging digital data, palatal soft tissue could be quantified virtually. The results were reliable and comparable to previous findings with linear measurement methods. This 3D soft tissue volume analysis method fully exploited the diagnostic potential of data that are frequently collected for presurgical planning in oral surgery (i.e., CBCT + surface scans). This evaluation method might be useful for volumetric and linear measurements in other applications in anatomy and for determining palatal soft tissue dimensions in the planning stage before surgical interventions. Trial registration This observational clinical trial was retrospectively registered in the German Clinical Trials Register, reference number: DRKS00023918.
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Affiliation(s)
- Anna Seidel
- Department of Prosthodontics, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nürnberg (FAU), Glueckstrasse 11, 91054, Erlangen, Germany.
| | - Christian Schmitt
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nürnberg (FAU), Glueckstrasse 11, 91054, Erlangen, Germany
| | - Ragai Edward Matta
- Department of Prosthodontics, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nürnberg (FAU), Glueckstrasse 11, 91054, Erlangen, Germany
| | - Mayte Buchbender
- Department of Oral and Maxillofacial Surgery, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nürnberg (FAU), Glueckstrasse 11, 91054, Erlangen, Germany
| | - Manfred Wichmann
- Department of Prosthodontics, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nürnberg (FAU), Glueckstrasse 11, 91054, Erlangen, Germany
| | - Lara Berger
- Department of Prosthodontics, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nürnberg (FAU), Glueckstrasse 11, 91054, Erlangen, Germany
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Schils R, Altdorfer A, Berger L, Fontaine C, Herens S, Mattar L, Robinet S. [Clarithromycin consumption at the University Hospital of Liege in 2019. Retrospective study]. Rev Med Liege 2022; 77:32-38. [PMID: 35029338] [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] [Indexed: 06/14/2023]
Abstract
Macrolides are one of the treatments of choice in community-acquired pneumonia, either when the clinical and/or biological elements suggest an infection by an intracellular bacteria (so-called atypical), or when the severity of the clinical picture justifies their empirical use. This work is a retrospective monocentric study carried out at the University Hospital of Liege on 25 consecutive patients hospitalized during the year 2019. It aims to specify whether the use of a particular macrolide, clarithromycin, actually meets the national recommendations both in terms of indication, dosage or duration. The results showed justified and adequate use in only 44 % of cases. Nevertheless, the indication was overwhelmingly mentioned in the medical record (96 %). Furthermore, the comparison with national data showed a much higher than average use at the University Hospital of Liege. An action plan is suggested to discuss these results within the Antibiotic Therapy Management Group and then communicate them to the prescribers who are concerned. The aim is to adapt the use of macrolides at the University Hospital of Liege to be more in line with national recommendations.
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Affiliation(s)
- R Schils
- Service des Maladies infectieuses, CHU Liège, Belgique
| | - A Altdorfer
- Service des Maladies infectieuses, CHR Citadelle, Liège, Belgique
| | - L Berger
- Pharmacie, CHBA Seraing, Belgique
| | - C Fontaine
- Service de Microbiologie, CHU Liège, Belgique
| | - S Herens
- Service de Microbiologie, CHU Liège, Belgique
| | - L Mattar
- Pharmacie, Sankt Nikolaus Hospital, Eupen, Belgique
| | - S Robinet
- Service des Soins intensifs, CHU Liège, Belgique
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Matta RE, Eitner S, Stelzer SP, Reich S, Wichmann M, Berger L. Ten-year clinical performance of zirconia posterior fixed partial dentures. J Oral Rehabil 2021; 49:71-80. [PMID: 34717003 DOI: 10.1111/joor.13276] [Citation(s) in RCA: 3] [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: 01/20/2021] [Revised: 08/15/2021] [Accepted: 09/23/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND With the constantly increasing demand for metal-free solutions in dental therapy, numerous ceramic restorations have found their way into everyday clinical practice, but long-term clinical data are limited. OBJECTIVE The aim of this prospective clinical study was to evaluate three- and four-unit fixed partial dentures in the posterior region made of zirconium dioxide frameworks veneered with feldspathic porcelain after 10 years in clinical use. METHODS Based on the two studies published in 2009 and 2012, in which the all-ceramic FDPs were evaluated after 3 and 5 years of function, a clinical evaluation of a total of 17 restorations after 10 years with regard to their condition and long-term stability was carried out in the course of this study. The restorations were fabricated using feldspathic ceramic-veneered, yttria-stabilised, tetragonal zirconium dioxide as the framework material. The data collection was based on modified CDA criteria and included, for example, the shape, shade, surface condition and the success and survival rates of the restorations. RESULTS The all-ceramic prostheses embodied excellent biocompatibility and colour reproduction. As a result of an increased incidence of chipping fractures, the success rate was 60%. The survival rate, however, was 88.2%, as 2 of the 17 restorations were lost. CONCLUSION All-ceramic concepts for FDP constructions in the posterior region achieved satisfactory results in terms of durability after 10 years. The main problem was chipping, as has been generally recognised. Nevertheless, the materials were characterised by excellent aesthetics and biocompatibility, which ultimately makes them a good alternative to conventional restorative options. TRIAL REGISTRATION This study is registered in DRKS-German Clinical Trials Register with the register number DRKS00021743.
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Affiliation(s)
- Ragai-Edward Matta
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
| | - Stephan Eitner
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
| | | | - Sven Reich
- Department of Prosthodontics and Biomaterials, Faculty of Medicine, Centre of Implantology, RWTH University Hospital, Aachen, Germany
| | - Manfred Wichmann
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
| | - Lara Berger
- Department of Prosthodontics, Erlangen University Hospital, Erlangen, Germany
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Guillemin F, Berger L, Lapeyre M, Bellière-Calandry A. [Dosimetric and toxicity comparison of IMRT and 3D-CRT of non-small cell lung cancer]. Cancer Radiother 2021; 25:747-754. [PMID: 34183268 DOI: 10.1016/j.canrad.2021.03.001] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/25/2021] [Accepted: 03/02/2021] [Indexed: 12/25/2022]
Abstract
PURPOSE Although three-dimensional conformal radiotherapy (3D-CRT) remains the gold standard as a curative treatment for NSCLC when surgery is not possible, intensity modulated radiotherapy (IMRT) is increasingly used routinely. The purpose of this study was to assess the clinical (immediate toxicities) and dosimetric impact of IMRT compared to 3D-CRT in the treatment of locally advanced (stages IIIA to IIIC) non-small cell lung cancer (NSCLC) treated with concomitant radiochemotherapy, while IMRT in lung cancer was implemented in the radiotherapy department of the Jean-Perrin Center. PATIENTS AND METHODS Between March 2015 and October 2019, 64 patients treated with concomitant radiochemotherapy were retrospectively included. Thirty-two received 3D-CRT and 32 IMRT. The radiotherapy prescription was 66Gy in 33 fractions of 2Gy. RESULTS IMRT has improved coverage of target volumes (V95 increased by 14.81% in IMRT; P<0.001) without increasing doses to OARs and reducing dysphagia (RR=0.67; P=0.027). Low doses to the lung were not significantly increased in IMRT (pulmonary V5 increased by 7.46% in IMRT). CONCLUSION Intensity modulated radiotherapy, compared with the standard RC3D technique, improve the coverage of target volumes without increasing the dose to the OARs. It also improves the immediate tolerance of the treatment by reducing the number of dysphagia.
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Affiliation(s)
- F Guillemin
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 5026, 63011 Clermont-Ferrand cedex 1, France.
| | - L Berger
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 5026, 63011 Clermont-Ferrand cedex 1, France
| | - M Lapeyre
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 5026, 63011 Clermont-Ferrand cedex 1, France
| | - A Bellière-Calandry
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 5026, 63011 Clermont-Ferrand cedex 1, France
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Shima AL, Berger L, Skerratt LF. Haematological and serum biochemical reference intervals of free-ranging Lumholtz's tree-kangaroos (Dendrolagus lumholtzi). Aust Vet J 2021; 99:249-254. [PMID: 33751570 DOI: 10.1111/avj.13063] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 01/13/2021] [Accepted: 02/21/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Reference intervals for haematology and serum biochemistry parameters were developed for free-ranging Lumholtz's tree-kangaroo (Dendrolagus lumholtzi) using 35 samples from 12 female and 15 male free-ranging animals. Captive tree-kangaroos (n = 12) were also sampled for comparison. Differences were found between free-ranging and captive animals in white blood cell and neutrophil counts, and levels of aspartate aminotransferase, alkaline phosphatase, bilirubin, creatine kinase, phosphate, triglycerides and lipase. These differences may be attributed to diet, activity, capture methods or age group. Reference intervals generated may be used for both free-ranging and captive Lumholtz's tree-kangaroos. This study provides a valuable tool for the assessment of health in rescued and captive tree-kangaroos and will aid in investigations into population health and disease in free-ranging Lumholtz's tree-kangaroos. OBJECTIVE To develop reference intervals (RIs) for haematology and serum biochemistry parameters in Lumholtz's tree-kangaroos. METHODS Haematological and serum biochemical RIs were determined using 35 samples from 27 clinically healthy Lumholtz's tree-kangaroos from the Atherton Tablelands region of Queensland examined between 2014 and 2019. Haematology and serum biochemistry parameters were measured from 16 samples from 12 captive animals for comparison. RESULTS Reference intervals based on 35 samples from free-ranging animals showed higher mean and standard deviation values for white blood cell and neutrophil counts, and levels of aspartate aminotransferase, alkaline phosphatase, bilirubin, creatine kinase, phosphate, triglycerides and lipase than results for 16 samples from captive animals. Captive individuals showed higher mean values than free-ranging individuals for albumin, protein, creatinine as well as Hb, MCV, MCH and MCHC. CONCLUSION The haematological and serum biochemistry RIs developed for Lumholtz's tree-kangaroos in this study will provide a valuable tool during clinical examination and investigations into disease and population health by veterinarians and researchers. The differences in parameters between free-ranging and captive animals are consistent with differences in diet, age cohort, activity or capture methods. Reference intervals generated from free-ranging animals should also be valid for captive Lumholtz's tree-kangaroos.
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Affiliation(s)
- A L Shima
- One Health Research Group, College of Public Health, Medical and Veterinary Science, James Cook University, Townsville, Queensland, 4811, Australia
| | - L Berger
- One Health Research Group, Melbourne Veterinary School, The University of Melbourne, Werribee, Victoria, 3030, Australia
| | - L F Skerratt
- One Health Research Group, Melbourne Veterinary School, The University of Melbourne, Werribee, Victoria, 3030, Australia
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Matta RE, Motel C, Kirchner E, Stelzer SP, Adler W, Wichmann M, Berger L. Wear of feldspathic-ceramic-veneered zirconia posterior FPDs after 10 years. BMC Oral Health 2020; 20:345. [PMID: 33256686 PMCID: PMC7708209 DOI: 10.1186/s12903-020-01336-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 07/22/2020] [Accepted: 11/18/2020] [Indexed: 11/18/2022] Open
Abstract
Background The abrasion behavior of various ceramics is rarely investigated, though it is relevant for the clinical success of such restorations. The aim of this in vivo study was to evaluate the wear of feldspathic-ceramic-veneered zirconium oxide frameworks over a period of at least 10 years. Methods The abrasion behavior of 15 bridge constructions from 15 different participants was examined after a period of 3, 5, and 10 years using plaster models, which were then subjected to a scanning process on the Atos II industrial scanner and digitized for three-dimensional evaluation of the abrasion by the corresponding software (ATOS Professional 7.6). The individual post-examination models were compared to the baseline model and deviations calculated in the sense of the largest, punctual loss of material in millimeters (“minimal distance”), the average abrasion in millimeters (“mean distance”), and the volume decrease in cubic millimeters (“integrated distance”). Statistical analyses were performed using the Wilcoxon sign rank test or mixed regression models. Multiple testing was considered by Benjamini-Hochberg correction. The significance level was set at 0.05. Results We found steadily increasing wear of the ceramic. The average volume decrease was significant (P < 0.001) at 3 years and 10 years (− 3.25 mm3 and − 8.11 mm3, respectively). Conclusions The results of this study indicate that the rate of volume loss in feldspathic-ceramic-veneered zirconia frameworks in the posterior region increases significantly over time. An increasing frequency of parameters was observed, particularly in the second half of the study period. However, the use of this class of materials can be considered clinically acceptable. Trial registration This study is registered in DRKS - German Clinical Trials Register with the register number DRKS00021743. https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00021743
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Affiliation(s)
- Ragai-Edward Matta
- Department of Prosthodontics, Erlangen University Hospital, Glueckstrasse 11, 91054, Erlangen, Germany.
| | - Constantin Motel
- Department of Prosthodontics, Erlangen University Hospital, Glueckstrasse 11, 91054, Erlangen, Germany
| | - Elena Kirchner
- Department of Prosthodontics, Erlangen University Hospital, Glueckstrasse 11, 91054, Erlangen, Germany
| | - Simon Paul Stelzer
- Zahnarztpraxis Haidhausen Dr. Hans-Rudolf Kurpiers und Christian Pollok, Weißenburger Platz 8, 81667, Munich, Germany
| | - Werner Adler
- Department of Medical Informatics, Biometry and Epidemiology, Friedrich-Alexander-University of Erlangen Nuremberg, Waldstr. 6, 91054, Erlangen, Germany
| | - Manfred Wichmann
- Department of Prosthodontics, Erlangen University Hospital, Glueckstrasse 11, 91054, Erlangen, Germany
| | - Lara Berger
- Department of Prosthodontics, Erlangen University Hospital, Glueckstrasse 11, 91054, Erlangen, Germany
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Berger L, Kolben T, Meister S, Kolben TM, Schmoeckel E, Mayr D, Mahner S, Jeschke U, Ditsch N, Beyer S. Expression of H3K4me3 and H3K9ac in breast cancer. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1717839] [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: 10/23/2022] Open
Affiliation(s)
- L Berger
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - T Kolben
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - S Meister
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - TM Kolben
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - E Schmoeckel
- Pathologisches Institut, Klinikum der LMU München
| | - D Mayr
- Pathologisches Institut, Klinikum der LMU München
| | - S Mahner
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - U Jeschke
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum Augsburg
| | - N Ditsch
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum Augsburg
| | - S Beyer
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
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Berger L, Kolben T, Meister S, Kolben TM, Schmoeckel E, Mayr D, Mahner S, Jeschke U, Ditsch N, Beyer S. Expression von H3K4me3 und H3K9ac in Brustkrebs. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1713965] [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: 10/23/2022] Open
Affiliation(s)
- L Berger
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - T Kolben
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - S Meister
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - T M Kolben
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - E Schmoeckel
- Pathologisches Institut, Klinikum der LMU München
| | - D Mayr
- Pathologisches Institut, Klinikum der LMU München
| | - S Mahner
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
| | - U Jeschke
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum Augsburg
| | - N Ditsch
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum Augsburg
| | - S Beyer
- Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Klinikum der LMU München
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Horner S, Berger L, Gibas K. Nutritional Ketosis and photobiomodulation remediate mitochondria warding off Alzheimer's disease in a diabetic, ApoE4+ patient with mild cognitive impairment: A case report. Photodiagnosis Photodyn Ther 2020; 30:101777. [PMID: 32305654 DOI: 10.1016/j.pdpdt.2020.101777] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/24/2020] [Accepted: 04/10/2020] [Indexed: 01/09/2023]
Abstract
Alzheimer's Disease (AD) is a neurodegenerative progressive disorder for which there is currently no cure. Recent research demonstrates a robust correlation between type-2 diabetes mellitus (T2DM) and the development of MCI and AD, now referred to as type-3 diabetes. Both AD and T2DM, as metabolic pathologies, can be traced to the level of mitochondrial function. The metabolic hypothesis suggests that the cause of AD might be rooted in mitochondrial dysfunction accompanied by fuel shortage in the brain. Although glucose is known to be the deferred source of fuel for cells, ketone bodies have been observed to provide metabolically compromised brain cells with an alternative fuel source, bypassing deficiencies in GLUT transport due to increased insulin resistance. By keeping glucose and insulin levels low to allow for the production of ketones, there is evidence that mitochondrial function will be restored and cognition/memory improved. Further, visible red or near-infrared (NIR) light has been shown to heal and stimulate damaged tissue by interacting with the mitochondria to restore function. This case study evaluates the effects of a 10-week clinically prescribed ketogenic nutrition protocol combined with transcranial photobiomodulation (PBM) with a 59-year-old male, heterozygous ApoE4 carrier, with a dual diagnosis of mild AD and an 11 year history of insulin dependent type 2 diabetes (T2DM). Statistically significant results reflect an 83% reduction in HOMA-IR; 64% decrease in the triglyceride/HDL ratio; HgA1c reduction from 9.44% to 6.4%; 57% decrease in VLDL and triglycerides; and normalized cognition as measured via the MoCA (Montreal Cognitive Assessment), 26/30 post intervention.
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Ellis PC, Pivarnik LF, Thiam M, Berger L, Field S, Green D, Hewes D, Lemerise D, Lyttle C, Maciel J, Soper K. Determination of Volatile Bases in Seafood Using the Ammonia Ion Selective Electrode: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/83.4.933] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Nine collaborating laboratories tested a combination of 23 seafood samples for volatile bases using an ammonia ion selective electrode. Results were reported as mg NH3/100 g fish, but the method reflected levels of both ammonia and trimethylamine, which permeated the ammonia membrane. The 23 samples were broken down into 8 blind duplicate pairs, 2 Youden matched pairs, and 3 single samples covering fresh to spoiled product ranging from 8 to 82 mg NH3/100 g. Seven species were evaluated: Atlantic cod, squid, Atlantic halibut, gray sole, monkfish, dogfish, and Atlantic mackerel. The ammonia electrode assay was performed on an aqueous homogenate consisting of 95 mL distilled water and 5.0 g sample tissue. Alkaline ion strength adjusting solution (2 mL) was added to the homogenate to liberate ammonia that was sensed by the ion specific electrode and measured on a precalibrated portable meter. Repeatability standard deviations (RSDr) ranged from 4.2 to 17%; reproducibility standard deviations (RSDR) ranged from 8.8 to 21%. A standard ammonium chloride solution was provided to all laboratories to spike 3 different samples at 10 mg NH3/100 g. Recoveries of added ammonia as ammonium chloride for fresh, borderline, and spoiled samples were 88.6, 107, and 128%, respectively.
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Affiliation(s)
- P Christopher Ellis
- Rhode Island Department of Health Laboratories, 50 Orms St, Providence, RI 02904
| | - Lori F Pivarnik
- University of Rhode Island, Food Science and Nutrition Research Center, 530 Liberty Ln, West Kingston, RI 02892
| | - Mamadou Thiam
- University of Rhode Island, Food Science and Nutrition Research Center, 530 Liberty Ln, West Kingston, RI 02892
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Le Deroff C, Bellec J, Berger L, Boissonnat G, Delpon G, Desrousseaux J, Gempp S, Jarril J, Solinhac F, Lazaro D, Lafond C. Simulation tridimensionnelle des doses délivrées en radiothérapie guidée par l’image pour trois modalités d’imagerie : tomographie conique, tomographie hélicoïdale et imagerie stéréoscopique. Cancer Radiother 2019. [DOI: 10.1016/j.canrad.2019.07.051] [Citation(s) in RCA: 1] [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] [Indexed: 11/16/2022]
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Kosch TA, Silva CNS, Brannelly LA, Roberts AA, Lau Q, Marantelli G, Berger L, Skerratt LF. Genetic potential for disease resistance in critically endangered amphibians decimated by chytridiomycosis. Anim Conserv 2018. [DOI: 10.1111/acv.12459] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- T. A. Kosch
- One Health Research Group College of Public Health, Medical and Veterinary Sciences James Cook University Townsville Qld Australia
| | - C. N. S. Silva
- Centre for Sustainable Tropical Fisheries and Aquaculture College of Science and Engineering James Cook University Townsville Qld Australia
| | - L. A. Brannelly
- One Health Research Group College of Public Health, Medical and Veterinary Sciences James Cook University Townsville Qld Australia
- Department of Biological Sciences University of Pittsburgh Pittsburgh PA USA
| | - A. A. Roberts
- One Health Research Group College of Public Health, Medical and Veterinary Sciences James Cook University Townsville Qld Australia
| | - Q. Lau
- Department of Evolutionary Studies of Biosystems Sokendai (The Graduate University for Advanced Studies) Hayama Japan
| | | | - L. Berger
- One Health Research Group College of Public Health, Medical and Veterinary Sciences James Cook University Townsville Qld Australia
| | - L. F. Skerratt
- One Health Research Group College of Public Health, Medical and Veterinary Sciences James Cook University Townsville Qld Australia
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Grün N, Holweg P, Tangl S, Eichler J, Berger L, van den Beucken J, Löffler J, Klestil T, Weinberg A. Comparison of a resorbable magnesium implant in small and large growing-animal models. Acta Biomater 2018; 78:378-386. [PMID: 30059798 DOI: 10.1016/j.actbio.2018.07.044] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 06/19/2018] [Accepted: 07/23/2018] [Indexed: 02/08/2023]
Abstract
Fracture treatment in children needs new implant materials to overcome disadvantages associated with removal surgery. Magnesium-based implants constitute a biocompatible and bioresorbable alternative. In adults and especially in children, implant safety needs to be evaluated. In children the bone turnover rate is higher and implant material might influence growth capacity, and the long-term effect of accumulated particles or ions is more critical due to the host's prolonged post-surgery lifespan. In this study we aimed to investigate the degradation behavior of ZX00 (Mg-0.45Zn-0.45Ca; in wt.%) in a small and a large animal model to find out whether there is a difference between the two models (i) in degradation rate and (ii) in bone formation and in-growth. Our results 6, 12 and 24 weeks after ZX00 implantation showed no negative effects on bone formation and in-growth, and no adverse effects such as fibrotic or sclerotic encapsulation. The degradation rate did not significantly differ between the two growing-animal models, and both showed slow and homogeneous degradation performance. Our conclusion is that small animal models may be sufficient to investigate degradation rates and provide preliminary evidence on bone formation and in-growth of implant materials in a growing-animal model. STATEMENT OF SIGNIFICANCE The safety of implant material is of the utmost importance, especially in children, who have enhanced bone turnover, more growth capacity and longer postoperative lifespans. Magnesium (Mg)-based implants have long been of great interest in pediatric orthopedic and trauma surgery, due to their good biocompatibility, biodegradability and biomechanics. In the study documented in this manuscript we investigated Mg-Zn-Ca implant material without rare-earth elements, and compared its outcome in a small and a large growing-animal model. In both models we observed bone formation and in-growth which featured no adverse effects such as fibrotic or sclerotic encapsulation, and slow homogeneous degradation performance of the Mg-based implant material.
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Brannelly LA, Clemann N, Skerratt LF, Webb RJ, Berger L, Scheele BC. Investigating community disease dynamics can lead to more effective conservation efforts. Anim Conserv 2018. [DOI: 10.1111/acv.12416] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. A. Brannelly
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA USA
- One Health Research Group; James Cook University; Townsville QLD Australia
| | - N. Clemann
- Department of Environment; Land Water and Planning; Arthur Rylah Institute for Environmental Research; Heidelberg VIC Australia
| | - L. F. Skerratt
- One Health Research Group; James Cook University; Townsville QLD Australia
| | - R. J. Webb
- One Health Research Group; James Cook University; Townsville QLD Australia
| | - L. Berger
- One Health Research Group; James Cook University; Townsville QLD Australia
| | - B. C. Scheele
- Fenner School of Environment and Society; Australian National University; Canberra ACT Australia
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24
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Berger L, Chassin V. 54. Stereotactic plans quality assurance with Delta 4PT phantom. Phys Med 2017. [DOI: 10.1016/j.ejmp.2017.10.079] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Brannelly LA, Webb RJ, Hunter DA, Clemann N, Howard K, Skerratt LF, Berger L, Scheele BC. Non-declining amphibians can be important reservoir hosts for amphibian chytrid fungus. Anim Conserv 2017. [DOI: 10.1111/acv.12380] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- L. A. Brannelly
- One Health Research Group; James Cook University; Townsville QLD Australia
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA USA
| | - R. J. Webb
- One Health Research Group; James Cook University; Townsville QLD Australia
| | - D. A. Hunter
- New South Wales Office of Environment and Heritage; Albury NSW Australia
| | - N. Clemann
- Department of Environment, Land Water and Planning; Arthur Rylah Institute for Environmental Research; Heidelberg VIC Australia
| | - K. Howard
- Department of Environment, Land Water and Planning; Arthur Rylah Institute for Environmental Research; Heidelberg VIC Australia
| | - L. F. Skerratt
- One Health Research Group; James Cook University; Townsville QLD Australia
| | - L. Berger
- One Health Research Group; James Cook University; Townsville QLD Australia
| | - B. C. Scheele
- One Health Research Group; James Cook University; Townsville QLD Australia
- Fenner School of Environment and Society; Australian National University; Canberra ACT Australia
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Le Hello C, Auboire L, Berger L, Gouicem D, Barrellier MT, Duthois S. Symptomatic lower-limb giant-cell arteritis: Characteristics, management and long-term outcome. J Med Vasc 2017; 42:148-156. [PMID: 28705403 DOI: 10.1016/j.jdmv.2017.03.001] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 02/19/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To describe characteristics and long-term outcomes of the rare symptomatic lower-limb giant-cell arteritis (LL-GCA). METHODS Retrospective analysis of 8 patients (6 women; mean±SD age, 63.6±10.9 years; follow-up, 137.3±57.3 months). RESULTS Four patients satisfied≥3 American College of Rheumatology (ACR) GCA-classification criteria; 4 had<3 criteria and histological LL-GCA proof or associated typical upper-limb involvement. Patients had 2.1±1.1 vascular risk factors. Bilateral and rapidly progressive arterial claudication was the first LL sign; 2 had rest ischemia. Imaging-visualized most-to-least frequent inflammatory lesion localizations were: superficial femoral, popliteal, tibiofibular trunk, posterior tibial arteries. All received corticosteroids for 132±76.2 months; 2 required immunosuppressive agent adjunction. Only 3 required 1-6 revascularizations: twice during the first month post-diagnosis and twice later. Thromboendarterectomy and endovascular procedures did not work while bypasses were successful. LL-claudication regressed for 7 (10.5±12.1 months) and disappeared for 5 (16.8±9.8 months). Three patients stopped corticosteroids (26-90 months), 1 restarted 45 months later. Every patient relapsed once (23.9±26.7 months, mean corticosteroid dose: 0.28±0.30mg/kg/day). LL-GCA caused only 1 of the 4 deaths. CONCLUSION Symptomatic LL-GCA attributable long-term mortality seems to be low despite frequent relapses and corticosteroid-dependence.
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Affiliation(s)
- C Le Hello
- Vascular Medicine Department, CHU de Caen, avenue de la Côte-de-Nacre, 14033 Caen, France.
| | - L Auboire
- Vascular Medicine Department, CHU de Caen, avenue de la Côte-de-Nacre, 14033 Caen, France
| | - L Berger
- Vascular Surgery Department, CHU de Caen, avenue de la Côte-de-Nacre, 14033 Caen Cedex, France
| | - D Gouicem
- Vascular Surgery Department, CHU de Caen, avenue de la Côte-de-Nacre, 14033 Caen Cedex, France
| | - M T Barrellier
- Vascular Medicine Department, CHU de Caen, avenue de la Côte-de-Nacre, 14033 Caen, France
| | - S Duthois
- Vascular Medicine, la Musse, allée Louis-Martin, BP 119, 27180 Saint-Sébastien-de-Morsent, France
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Benhaïm C, Loos G, Achard JL, Berger L, Caillé C, Frédéric-Moreau T, Biau J, Lapeyre M. [Partial delegation to radiation therapists of the control by cone beam CT of prostate positioning]. Cancer Radiother 2017; 21:28-33. [PMID: 28214286 DOI: 10.1016/j.canrad.2016.07.104] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 07/08/2016] [Accepted: 07/22/2016] [Indexed: 11/28/2022]
Abstract
PURPOSE Intensity modulated radiotherapy for prostate cancer involves daily monitoring of the positioning of the prostate, possible with cone beam CT (CBCT). It allows increased accuracy compared to readjustments but induces an increase in the time dedicated to these medical checks. The aim of the study was to evaluate the possibility of delegation of this task to the radiation therapists by comparing their readjustments to the doctors. PATIENTS AND METHODS Five consecutive patients treated with radiation for prostate cancer (76Gy) were analysed. All had a daily CBCT for position control. The movements of the prostate relative to the bony part, the positional variations of the prostate measured by the radiation therapists and the doctors and medical time required to analyse imagery (filling of the rectum and bladder and perform a recalibration) were measured. RESULTS One hundred seventy-six CBCT were analysed or 980 steps in the three axes. The movements of the prostate relative to bony part were respectively at least 5mm in 19%, 7% and 3% in the anterior-posterior, upper-lower and right-left axes. Changes readjustments between radiation therapists and doctors were in 95% of cases at the most 4mm in the anterior-posterior and upper-lower axis, and 3mm in the left-right axis. The time for medical use of the CBCT averaged 8min 40 [4 to 22min]. CONCLUSION The daily readjustment on the prostate using CBCT may be delegated to radiation therapists with acceptable concordance of less than 4mm for 95% of measurements. An initial and ongoing training will ensure treatment safety.
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Affiliation(s)
- C Benhaïm
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 392, 63011 Clermont-Ferrand cedex 1, France
| | - G Loos
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 392, 63011 Clermont-Ferrand cedex 1, France
| | - J L Achard
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 392, 63011 Clermont-Ferrand cedex 1, France
| | - L Berger
- Département de physique médicale, centre Jean-Perrin, 58, rue Montalembert, BP 392, 63011 Clermont-Ferrand cedex 1, France
| | - C Caillé
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 392, 63011 Clermont-Ferrand cedex 1, France
| | - T Frédéric-Moreau
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 392, 63011 Clermont-Ferrand cedex 1, France
| | - J Biau
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 392, 63011 Clermont-Ferrand cedex 1, France
| | - M Lapeyre
- Département de radiothérapie, centre Jean-Perrin, 58, rue Montalembert, BP 392, 63011 Clermont-Ferrand cedex 1, France.
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Shaw SD, Berger L, Harvey C, Alley MR, Bishop PJ, Speare R. Adenomatous hyperplasia of the mucous glands in captive Archey's frogs (Leiopelma archeyi). N Z Vet J 2016; 65:140-146. [PMID: 27855564 DOI: 10.1080/00480169.2016.1255158] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIMS To describe the gross and light microscopic characteristics of skin lesions observed on the ventral skin of captive Archey's frogs (Leiopelma archeyi) between 2000 and 2012, and to investigate their occurrence, possible aetiology and association with survival. METHODS Postmortem skin samples were obtained for histological evaluation from 37 frogs, with and without skin lesions, that died while in captivity at Auckland Zoo between 2000 and 2012. Four frogs with skin lesions were biopsied under general anaesthesia and samples used for both light and transmission electron microscopy. The records of 94 frogs held at the University of Otago and Auckland Zoo between 2000-2012 were reviewed, which included some frogs recently collected from the wild. Information about the occurrence of skin lesions, and mortality associated with skin lesions was collated. RESULTS Grossly the skin lesions varied in appearance; most were circular, pale grey papules, which measured from <0.5-1.5 mm in diameter with no umbilication. The overlying epidermis was not fragile and there was no associated inflammation. Contents often appeared clear or semi-transparent. Lesions were located predominantly on ventral surfaces including trunk, thighs, lower legs and forearms, and gular region, but not on digits. The number ranged from single to multiple, often confluent lesions covering the entire ventral surface of the frog. Histologically the lesions consisted of enlarged proliferating mucous glands that expanded the dermis and elevated the epidermis. They were semi-organised, solid or occasionally cavitated acinar structures with central lumina which sometimes contained mucus. Nuclei showed moderate anisokaryosis and mitotic figures were uncommon. Transmission electron microscopy did not show any infectious agents. Between 2000 and 2012, skin lesions were recorded in 35/94 (37%) frogs. The size and location of skin lesions varied over time, with some resolving and sometimes reappearing. Skin lesions were not associated with an increased risk of death. CONCLUSIONS The skin lesions had the gross and microscopic characteristics of adenomatous hyperplasia of the dermal mucous glands. CLINICAL RELEVANCE The aetiology of this adenomatous hyperplasia is unknown, but factors associated with the captive environment are the most likely cause. This is the first description of adenomatous hyperplasia of the cutaneous mucous glands in amphibians.
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Affiliation(s)
- S D Shaw
- a New Zealand Centre for Conservation Medicine , Auckland Zoological Park, Auckland , New Zealand.,b One Health Research Group, College of Public Health, Medical and Veterinary Sciences , James Cook University , Townsville , Queensland , Australia
| | - L Berger
- b One Health Research Group, College of Public Health, Medical and Veterinary Sciences , James Cook University , Townsville , Queensland , Australia
| | - C Harvey
- c Gribbles Veterinary Laboratories , Auckland , New Zealand
| | - M R Alley
- d Wildbase Pathology, Institute of Veterinary, Animal and Biomedical Sciences , Massey University , Palmerston North , New Zealand
| | - P J Bishop
- e Department of Zoology , University of Otago , Dunedin , New Zealand
| | - R Speare
- b One Health Research Group, College of Public Health, Medical and Veterinary Sciences , James Cook University , Townsville , Queensland , Australia
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Piram L, Frédéric-Moreau T, Miroir J, Saroul N, Pham Dang N, Berger L, Biau J, Lapeyre M. Étude prospective évaluant l’impact de la couverture du volume cible prévisionnel à haut risque par l’isodose 95 % sur les taux de contrôle local et de survie globale dans les cancers des voies aérodigestives supérieures pris en charge par radiothérapie conformationnelle avec modulation d’intensité. Cancer Radiother 2016. [DOI: 10.1016/j.canrad.2016.08.013] [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]
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Marchesi V, Berger L, Boutry C, Dupuis P, Crespin S, François P. «Transit» in vivo dosimetry in external dosimetry: Recommendations from experts mandated by SFPM. Phys Med 2015. [DOI: 10.1016/j.ejmp.2015.10.032] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Berger L, Saj A. Asymétrie de la représentation du corps après une lésion du tronc cérébral. Neurophysiol Clin 2015. [DOI: 10.1016/j.neucli.2015.10.025] [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: 10/22/2022] Open
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Llewelyn VK, Berger L, Glass BD. Percutaneous absorption of chemicals: developing an understanding for the treatment of disease in frogs. J Vet Pharmacol Ther 2015; 39:109-21. [PMID: 26456710 DOI: 10.1111/jvp.12264] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 07/27/2015] [Indexed: 01/13/2023]
Abstract
The permeable nature of frog skin presents an alternative route for the delivery of therapeutic chemicals to treat disease in frogs. However, although therapeutic chemicals are often topically applied to the skin of frogs, their pharmacokinetics have rarely been reported. To provide evidence to guide both candidate drug and formulation selection, we highlight factors expected to influence percutaneous absorption through frog skin, including the anatomy and physiology of the skin and the physicochemical properties of applied therapeutic chemicals. Importantly, we also highlight the effects of the formulation on percutaneous absorption, especially the inclusion of potential penetration enhancers as excipients. Finally, we collate empirical data on the topical application of various therapeutic chemicals in postmetamorphic frogs and show that, in contrast to mammalian species, even large chemicals (i.e. >500 Da) and those with a wide range of log P values (-4 through +6) are likely to be absorbed percutaneously. Topical application in frogs thus promises a convenient and effective method for delivering systemic treatments of a diverse range of chemicals; however, further experimental quantification is required to ensure optimal outcomes.
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Affiliation(s)
- V K Llewelyn
- Pharmacy, College of Medicine and Dentistry, James Cook University, Townsville, Qld, Australia
| | - L Berger
- One Health Research Group, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Qld, Australia
| | - B D Glass
- Pharmacy, College of Medicine and Dentistry, James Cook University, Townsville, Qld, Australia
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Robyn MP, Newman AP, Amato M, Walawander M, Kothe C, Nerone JD, Pomerantz C, Behravesh CB, Biggs HM, Dahlgren FS, Pieracci EG, Whitfield Y, Sider D, Ozaldin O, Berger L, Buck PA, Downing M, Blog D. Q fever outbreak among travelers to Germany associated with live cell therapy - United States and Canada, 2014: a co-publication. Can Commun Dis Rep 2015; 41:223-226. [PMID: 29769916 PMCID: PMC5864281 DOI: 10.14745/ccdr.v41i10a01] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
WHAT IS ALREADY KNOWN ON THIS TOPIC? Q fever is a zoonotic disease caused by Coxiella burnetii and is usually transmitted through inhalation of air contaminated with animal excreta. The disease is considered to be underdiagnosed because symptoms are nonspecific and can vary from patient to patient, making diagnosis difficult. WHAT IS ADDED BY THIS REPORT? During September-October 2014, the New York State Department of Health identified Q fever in five patients with exposure to a treatment known as live cell therapy, an alternative medicine practice involving injections of fetal sheep cells, which is a type of xenotransplantation. Investigation revealed that a group of U.S. residents traveled to Germany twice a year to receive this treatment. WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE? Clinicians should consider zoonotic diseases, such as Q fever, in patients whose history includes receipt of a treatment known as live cell therapy. International travel for xenotransplantation procedures can facilitate transmission of zoonotic disease.
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Affiliation(s)
- MP Robyn
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA
- New York State Department of Health, Albany, NY
| | - AP Newman
- New York State Department of Health, Albany, NY
| | - M Amato
- Erie County Department of Health, Buffalo, NY
| | | | - C Kothe
- Ulster County Department of Health and Mental Health, Ellenville, NY
| | - JD Nerone
- Ulster County Department of Health and Mental Health, Ellenville, NY
| | - C Pomerantz
- Ulster County Department of Health and Mental Health, Ellenville, NY
| | - CB Behravesh
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA
| | - HM Biggs
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA
| | - FS Dahlgren
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA
| | - EG Pieracci
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA
- National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA
| | | | - D Sider
- Public Health Ontario, Toronto, ON
| | | | - L Berger
- Toronto Public Health, Toronto, ON
| | - PA Buck
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Ottawa, ON
| | - M Downing
- Saint Joseph’s Health Centre, Toronto, ON
- Department of Medicine, University of Toronto, Toronto, ON
| | - D Blog
- New York State Department of Health, Albany, NY
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Brannelly LA, Hunter DA, Skerratt LF, Scheele BC, Lenger D, McFadden MS, Harlow PS, Berger L. Chytrid infection and post-release fitness in the reintroduction of an endangered alpine tree frog. Anim Conserv 2015. [DOI: 10.1111/acv.12230] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- L. A. Brannelly
- One Health Research Group; College of Public Health, Medical and Veterinary Sciences; James Cook University; Townsville QLD Australia
| | - D. A. Hunter
- NSW Department of Premier and Cabinet; Ecosystems and Threatened Species; Office of Environment and Heritage; Albury NSW Australia
| | - L. F. Skerratt
- One Health Research Group; College of Public Health, Medical and Veterinary Sciences; James Cook University; Townsville QLD Australia
| | - B. C. Scheele
- Fenner School of Environment and Society; Australian National University; Canberra ACT Australia
| | - D. Lenger
- One Health Research Group; College of Public Health, Medical and Veterinary Sciences; James Cook University; Townsville QLD Australia
| | - M. S. McFadden
- Herpetofauna Department; Taronga Zoo; Mosman NSW Australia
| | - P. S. Harlow
- Herpetofauna Department; Taronga Zoo; Mosman NSW Australia
| | - L. Berger
- One Health Research Group; College of Public Health, Medical and Veterinary Sciences; James Cook University; Townsville QLD Australia
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Gautier P, Repesse Y, Joguet E, Troussard X, Borel-Derlon A, Berger L. Endovascular abdominal aortic aneurysm repair in a mild haemophilia A patient: a case report. Haemophilia 2015; 21:e232-e235. [PMID: 25684019 DOI: 10.1111/hae.12640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2015] [Indexed: 11/29/2022]
Affiliation(s)
- P Gautier
- Biological hematology department, CHU Caen, Caen, France; Hemophilia Centre, CHU Caen, Caen, France
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Mandon M, Macé JM, Dreyfus M, Berger L. [Consequences of increasing and ageing population of Basse-Normandie on gynecology and obstetrics activity]. ACTA ACUST UNITED AC 2015; 44:818-24. [PMID: 25660169 DOI: 10.1016/j.jgyn.2014.09.029] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 09/12/2014] [Accepted: 09/26/2014] [Indexed: 11/15/2022]
Abstract
INTRODUCTION In Basse-Normandie, the population over 65 years old will expend more rapidly between 2007 and 2042 (+11.6%) than the rest of the French population (+9.2%). The same population of Basse-Normandie will get old in the 15 years to come. The impact of these demographic changes over the activity in the gynecology-obstetrics field is not clearly identified. Although we cannot predict the technical and scientific developments in the next 15 years, we are presenting a model allowing to hypothesize about changes of gynecology and obstetrics according to population's aging. MATERIALS AND METHODS We have established a projection model for the realizable surgical acts in obstetrics and gynecology in accordance with the aging of the population in Basse-Normandie. The study was realized based on the acts concerning the cesarean sections (C-section), tubal sterilization, hysteroscopy and hysterectomy as well as ovarectomy and breast surgery. For each activity branch, the codes of the Classification commune des actes médicaux (CCAM) were selected and then removed from the Programme médicalisé des systèmes d'information (PMSI) database. We have used and adapted the Omphale model of the National Statistics and Economical Studies Institute and we have applied it for the period of 2009-2025. RESULTS Our projection model has permeated to show a 5.5% regression of the C-section acts, a 2% incretion of the hysterectomies and hysteroscopies, 7.7% of ovarectomies as well as a 9.8% augmentation of the breast surgeries. However, we predict a 11.8% diminution of the sterilizations by tubal implants. Globally, the activity in obstetrics and gynecology will remain constant with an insignificant augmentation of 46 acts (0.01%). CONCLUSION In Basse-Normandie, the surgical activity in gynecology-obstetrics will moderately increase in the next 15 years. This constant activity signifies that there is no need to form more residents than the number of practitioner to retire. The interest of this model is that it is applicable at a national level and it permits to confront the demographic data and the projections of different activities.
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Affiliation(s)
- M Mandon
- Service de gynécologie-obstétrique et médecine de la reproduction, CHU de Caen, avenue Côte-de-Nacre, 14000 Caen, France.
| | - J-M Macé
- Département ville, échanges et territoires, Centre national des arts et métiers, LIRSA, EA 4603, 75000 Paris, France
| | - M Dreyfus
- Service de gynécologie-obstétrique et médecine de la reproduction, CHU de Caen, avenue Côte-de-Nacre, 14000 Caen, France; UFR de médecine, université de Caen, avenue Côte-de-Nacre, 14000 Caen, France
| | - L Berger
- Service de chirurgie vasculaire, CHU de Caen, avenue Côte-de-Nacre, 14000 Caen, France; UFR de médecine, université de Caen, avenue Côte-de-Nacre, 14000 Caen, France
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Mandon M, Macé JM, Dreyfus M, Berger L. [Gynaecology and obstetrics in Basse-Normandy: demographic perspectives in 15 years]. J Gynecol Obstet Hum Reprod 2015; 44:34-40. [PMID: 24239035 DOI: 10.1016/j.jgyn.2013.10.009] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 09/28/2013] [Accepted: 10/15/2013] [Indexed: 06/02/2023]
Abstract
OBJECTIVES The French population is growing and ageing. In this context, it is important to consider the future of gynecologists and obstetricians in Basse-Normandie. The aim of this study was to perform an overview of the demographics of practitioners and estimate the retirements. We also try to project the need of trainees for the next years. MATERIALS AND METHODS We conducted a demographic and workload survey among 142 practitioners and 35 trainees. We detailed retirements and arrivals of this population. RESULTS By 2025, nearly two-thirds of practitioners in 2012 will retire, including 100% of medical gynecologists. Otherwise, there will be a lack of 1 to 2 practitioners per year. We also noted the tendance of feminization (86%) and the wish of a multi-practice in public hospital (86%). CONCLUSION A reflection about the health planning will be necessary in order to answer the demographics difficulty in the region. We will have to take into account the future retirements and also the specific situations in each area.
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Affiliation(s)
- M Mandon
- Service de gynécologie-obstétrique et médecine de la reproduction, CHU de Caen, avenue de la Côte-de-Nacre, 14000 Caen, France.
| | - J-M Macé
- Département ville, échanges et territoires, conservatoire national des arts et métiers, 75003 Paris, France
| | - M Dreyfus
- Service de gynécologie-obstétrique et médecine de la reproduction, CHU de Caen, avenue de la Côte-de-Nacre, 14000 Caen, France; UFR de médecine, université de Caen, avenue de la Côte-de-Nacre, 14000 Caen, France
| | - L Berger
- Service de chirurgie vasculaire, CHU de Caen, avenue de la Côte-de-Nacre, 14000 Caen, France; UFR de médecine, université de Caen, avenue de la Côte-de-Nacre, 14000 Caen, France
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Gillespie GR, Hunter D, Berger L, Marantelli G. Rapid decline and extinction of a montane frog population in southern Australia follows detection of the amphibian pathogenBatrachochytrium dendrobatidis. Anim Conserv 2014. [DOI: 10.1111/acv.12174] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- G. R. Gillespie
- Zoology Department; University of Melbourne; Parkville Vic. Australia
| | - D. Hunter
- New South Wales Office of Environment and Heritage; Queanbeyan NSW Australia
| | - L. Berger
- One Health Research Group; School of Public Health, Tropical Medicine and Rehabilitation Sciences; James Cook University; Townsville Qld Australia
| | - G. Marantelli
- Amphibian Research Centre; Pearcedale Vic. Australia
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Biau J, Miroir J, Loos G, Saroul N, Bonnin N, Berger L, Millardet C, Moreira J, Lapeyre M. Étude prospective de la radiothérapie conformationnelle avec modulation d’intensité par RapidArc® des cancers des fosses nasales et paranasales. Cancer Radiother 2014. [DOI: 10.1016/j.canrad.2014.07.119] [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: 11/27/2022]
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Miroir J, Biau J, Loos G, Saroul N, Berger L, Millardet C, Moreira J, Lapeyre M. Étude prospective de RCMI par RapidArc® des cancers des voies aérodigestives supérieures avec irradiation bilatérale du cou. Cancer Radiother 2014. [DOI: 10.1016/j.canrad.2014.07.122] [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: 11/30/2022]
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Woodward A, Berger L, Skerratt L. In vitro sensitivity of the amphibian pathogen Batrachochytrium dendrobatidis to antifungal therapeutics. Res Vet Sci 2014; 97:364-6. [DOI: 10.1016/j.rvsc.2014.06.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Revised: 06/26/2014] [Accepted: 06/28/2014] [Indexed: 10/24/2022]
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Martin F, Lapeyre M, Magnier F, Berger L, Verrelle P, Biau J. Comparaison dosimétrique de la radiothérapie stéréotaxique des tumeurs bénignes de la base du crâne : RapidArc® contre arcthérapie dynamique. Cancer Radiother 2014. [DOI: 10.1016/j.canrad.2014.07.033] [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: 10/24/2022]
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44
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Berger L, Rossi J, Domenge F, Calleja J, Gin H, Rigalleau V. Influence de chaussures thérapeutiques sur la répartition des pressions plantaires chez le sujet sain. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.476] [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: 10/25/2022]
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45
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Berger L, Rossi J, Domenge F, Calleja J, Gin H, Rigalleau V. Effects of therapeutic shoes on plantar pressure distribution on healthy subjects. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.436] [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: 11/28/2022]
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46
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Berger L, Calleja J, Maligorne M, Avenas K. Étude prospective : évaluation du port d’orthèses plantaires thermoformées chez des patients atteints de métatarsalgies et de syndrome fémoro-patellaire. Neurophysiol Clin 2014. [DOI: 10.1016/j.neucli.2013.10.090] [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: 11/16/2022] Open
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47
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Biau J, Loos G, Toledano I, Berger L, Millardet C, Moreira J, Lapeyre M. Radiothérapie conformationnelle avec modulation d’intensité par technique RapidArc des cancers des voies aérodigestives supérieures : résultats préliminaires. Cancer Radiother 2013. [DOI: 10.1016/j.canrad.2013.07.111] [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: 10/26/2022]
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48
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Bellière-Calandry A, Martin F, Berger L, Renzi S. Comparaisons dosimétriques de la technique d’irradiation de l’aire sus- et sous-claviculaire en deux et trois dimensions dans le cancer du sein. Cancer Radiother 2013. [DOI: 10.1016/j.canrad.2013.07.082] [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: 12/01/2022]
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49
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Berger L, Calleja M, Maligorne M, Avenas K. Prospective study: Evaluation of the thermoudled foot orthoses effects. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.172] [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: 11/29/2022]
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50
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Berger L, Calleja M, Maligorne M, Avenas K. Étude prospective : évaluation du port d’orthèses plantaires thermoformées. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.165] [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: 11/16/2022]
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