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Lacroix S, Ekoe J, Assal J, Leuenberger P. Problèmes de lecture de tests colorimétriques urinaires chez les diabétiques - (Résultats préliminaires). Klin Monbl Augenheilkd 2008. [DOI: 10.1055/s-2008-1055104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wirth A, Baethmann A, Schlesinger-Raab A, Assal J, Aydemir S, Bayeff-Filloff M, Beck J, Belg A, Boscher A, Chapuis D, Dietz HG, Döffinger J, Eisenmenger W, Gerstner W, Göbel WE, Grosse P, Grumme T, Gutermuth L, Hölzel D, Höpner F, Huf R, Jaksche H, Jensen U, Kettemann M, Ketterl R, Kirmayer U, Kolodziejcyk D, Köstler W, Kuznik J, Lackner C, Lenz G, Lochbihler H, Lumenta C, Martin S, Preisz A, Prokscha G, Regel G, Reischl H, Reulen HJ, Rothmeier F, Sackerer D, Schneck S, Schweiberer L, Sommer F, Steiger HJ, Stolpe E, Stummer W, Tanner P, Trappe A, Twickel J, Ueblacker P, Wambach W, Wengert P, Zimmerer S. Prospective documentation and analysis of the pre- and early clinical management in severe head injury in southern Bavaria at a population based level. Acta Neurochir Suppl 2004; 89:119-23. [PMID: 15335111 DOI: 10.1007/978-3-7091-0603-7_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Treatment of patients suffering from severe head injury is so far restricted to general procedures, whereas specific pharmacological agents of neuroprotection including hypothermia have not been found to improve the outcome in clinical trials. Albeit effective, symptomatic measures of the preclinical rescue of patients (i.e. stabilization or reestablishment of the circulatory and respiratory system) or of the early clinical care (e.g. prompt diagnosis and treatment of an intracranial space occupying mass, maintenance of a competent circulatory and respiratory system, and others) by and large constitute the current treatment based on considerable organizational and logistical efforts. These and other components of the head injury treatment are certainly worthwhile of a systematic analysis as to their efficacy or remaining deficiencies, respectively. Deficits could be associated with delays of providing preclinical rescue procedures (e.g. until intubation of the patient or administration of fluid). Delays could also be associated in the hospital with the diagnostic establishment of intracranial lesions requiring prompt neurosurgical intervention. By support of the Federal Ministry of Education and Research and under the auspices of the Forschungsverbund Neurotraumatology, University of Munich, a prospective system analysis was carried out on major aspects of the pre- and early clinical management at a population based level in patients with traumatic brain injury. Documentation of pertinent data was made from August 1998 to July 1999 covering a catchment area of Southern Bavaria (5.6 mio inhabitants). Altogether 528 cases identified to suffer from severe head injury (GCS < or = 8 or deteriorating to that level within 48 hrs) were enrolled following admission to the hospital and establishment of the diagnosis. Further, patients dying on the scene or during transport to the hospital were also documented, particularly as to the frequency of severe head injury as underlying cause of mortality. The analysis included also cases with additional peripheral trauma (polytrauma). The efficacy of the logistics and organization of the management was studied by documentation of prognosis-relevant time intervals, as for example until arrival of the rescue squad at the scene of an accident, until intubation and administration of fluid, or upon hospital admission until establishment of the CT-diagnosis and commencement of surgery or transfer to the intensive care unit, respectively. The severity of cases studied in the present analysis is evident from a mortality of far above 40% of cases admitted to the hospital, which was increased by about 20% when including prehospital mortality. The outcome data notwithstanding, the emerging results demonstrate a high efficacy of the pre- and early clinical management, as indicated by a prompt arrival of the rescue squad at the scene, a competent prehospital and early clinical management and care, indicative of a low rate of avoidable complications. It is tentatively concluded on the basis of these findings that the patient prognosis is increasingly determined by the manifestations of primary brain damage vs. the development of secondary complications.
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Assal P, Assal J, Arnaud C. [The all-in-one technique]. Schweiz Monatsschr Zahnmed 2001; 111:712-21. [PMID: 11475868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Assal J, Assal P, Arnaud C. [Modification of some occlusion concepts in implant dentistry: thoughts inspired by clinical experience]. Schweiz Monatsschr Zahnmed 2001; 111:159-63. [PMID: 11407331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Implantology is nowadays a common tool in dentistry. While studying a case and selecting the future restoration, implants have to be considered when possible. Due to the functional differences between an implant and a natural tooth, the classical occlusion principles need to be considered. The prostheses have to be built according to the magnitude and direction of the forces that will be applied on the abutments. The prosthetic work and the occlusal equilibration are different in a patient with implants than in a patient with natural dentition. The occlusal concept will not be the same in the case of single implants surrounded by natural teeth, in the case of a mixed implant-tooth-supported fixed reconstruction and in the case of a full fixed bridge on implants. The purpose of this paper is to discuss the clinical consequences of these differences.
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Affiliation(s)
- J Assal
- Cabinet dentaire, 7 avenue du Théâtre, 1005 Lausanne
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Pataky Z, Faravel L, Da Silva J, Assal J. A new ambulatory foot pressure device for patients with sensory impairment. A system for continuous measurement of plantar pressure and a feed-back alarm. J Biomech 2000; 33:1135-8. [PMID: 10854887 DOI: 10.1016/s0021-9290(00)00082-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Abnormal and excessive plantar pressure is a major risk factor for the development of foot ulcers in patients with loss of protective pain sensation. Repeated pressure with each step can result in inflammation at specific points, followed by ulcer formation. Patients with peripheral nerve disease are unable to prevent the development of such lesions, which often lead to amputation. For this reason, it has been suggested that a fundamental therapeutic intervention should be the reduction of high plantar pressure. We have developed a portable, battery-operated ambulatory foot pressure device (AFPD) which has two important functions: (1) to determine the areas of high plantar pressure, and (2) to provide an acoustic alarm, adjusted to a specific pressure load, which is triggered when weight-bearing exceeds the predetermined plantar pressure. A memory of plantar pressure parameters allows for downloading of the data and sequential analysis during the investigation period. Such an alarm device could replace the lack of pain sensation and may play an important role in the prevention of ulcer development and lower extremity amputation.
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Affiliation(s)
- Z Pataky
- Division of Therapeutic Education for Chronic Diseases, WHO Collaborating Center, Department of Internal Medicine, University Hospital of Geneva, Switzerland
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Lehr D, Baethmann A, Reulen HJ, Steiger HJ, Lackner C, Stummer W, Wirth A, Hölzel D, Stolpe E, Assal J, Belg A, Schrödel M, Müller N, Ueblacker P, Chlistalla A, Schneider G, Schweiberer L, Dietz HG, Trappe A, Göbel WE, Jaksche H, Messner V, Grumme T, Wenger P, Weess T. Management of patients with severe head injury in the preclinical phase: a prospective analysis. J Trauma 1997; 42:S71-5. [PMID: 9191699 DOI: 10.1097/00005373-199705001-00015] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- D Lehr
- Institute for Surgical Research, Ludwig-Maximilians-University, Munich, Germany
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Mäurer J, Vogl TJ, Assal J, Steinkamp HJ, Tykocinski M, Felix R. [The use of a "rapid sequence" in the diagnosis of tumors in the head and neck region]. Rontgenpraxis 1993; 46:316-321. [PMID: 8235903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- J Mäurer
- Strahlenklinik und Poliklinik, Freie Universität Berlin
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Vogl TH, Dresel S, Juergens M, Assal J, Lissner J. MR imaging with Gd-DTPA in lesions of the head and neck. J Otolaryngol 1993; 22:220-30. [PMID: 8230372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The diagnostic value of MR in the head and neck with special emphasis on the contrast medium Gd-DTPA will be demonstrated. A total of 1,260 patients underwent MR with different pulse sequences plain and with Gd-DTPA. The sequences were analyzed and compared with CT. Due to the different pattern of enhancement the contrast medium helped in differentiating malignant and benign tumors from other processes like cysts and inflammatory changes. Except lesions with small bony erosion and inflammatory changes of the salivary glands MR with Gd-DTPA proved to be diagnostically advantageous in all cases. Gd-DTPA improved the delineation of tumor margins. MR in combination with Gd-DTPA offers a lot of new advantages for diagnosing lesions of the head and neck. However, due to the prolonged examination time and the lack of noninvasiveness the use of Gd-DTPA has to be considered critical for every single area of the head and neck.
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Affiliation(s)
- T h Vogl
- Department of Radiology, University of Munich, Germany
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Vogl TJ, Assal J, Bergman C, Grevers G, Wustrow T, Hamburger C, McMahon C, Lissner J. Three-dimensional MR reconstruction images of skull base tumors. J Magn Reson Imaging 1993; 3:357-64. [PMID: 8448398 DOI: 10.1002/jmri.1880030211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Forty-eight patients with skull base tumors were evaluated prospectively with T1-weighted spin-echo two-dimensional (2D) magnetic resonance (MR) sequences, a three-dimensional (3D) MR TurboFLASH (fast low-angle shot) sequence, and a 3D reconstruction window technique. All patients underwent surgery with histopathologic correlation, and the three MR imaging techniques were compared to assess representation of tumor margins and the topographic relationship of tumor to surrounding tissue and adjacent vasculature. The best results were obtained with standard 2D spin-echo sequences after administration of the paramagnetic contrast agent gadopentetate dimeglumine. The 2D MR sequences gave the highest contrast-to-noise ratios, with decreasing values for 3D sequences and 3D reconstructions, respectively. Nevertheless, 3D MR imaging, by virtue of its good representation of adjacent structures, aided surgeons in planning surgical intervention. This study presents the technical features of 3D imaging of the skull base, the choices involved in its implementation, and its potential clinical applications.
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Affiliation(s)
- T J Vogl
- Department of Radiology, University of Munich, Germany
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Vogl TJ, Eberhard D, Weigl P, Assal J, Randzio J. [The use of the "cine-technic" in the MRT diagnosis of the temporomandibular joint]. ROFO-FORTSCHR RONTG 1992; 156:232-7. [PMID: 1550919 DOI: 10.1055/s-2008-1032874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A new cine-technique in a prospective study using rapid gradient echo sequences was evaluated for the MRT investigation of the temporo-mandibular joint. A newly developed hydraulic apparatus was used to produce progressive opening of the jaw and MRT appearances were recorded during predetermined points of mandibular movement. The investigation included 16 normals and 34 patients. A modified gradient echo sequence was combined with an optimised surface coil or a special double coil and this provided good spatial resolution of the articular disc and of the muscular and bony structure. Amongst the abnormal findings were luxation of the disc (15 cases), tears in the disc (5 cases), late effects of internal derangements (12 cases) and condylar hypermotility (7 cases). The new cine-technique provides specific images in any chosen position of the mandible depending on the clinical disability of the patient.
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Affiliation(s)
- T J Vogl
- Radiologische Klinik Innenstadt, Universität München
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Abstract
Three-dimensional (3D) magnetic resonance (MR) imaging is a new digital technique developed 2 years ago by a multidisciplinary group of head and neck surgeons, clinical radiologists, and mathematicians at the University of Munich. In this study, the clinical value of this method, which has been improved significantly during the last 9 months, is evaluated in lesions of the skull base. Our results indicate that 3D reconstruction based on two-dimensional (2D) MR images reveals topographic details of interesting structures. In addition, this method offers new possibilities for the preoperative planning of tumor resection, particularly in lesions close to the skull base. However, this imaging technique will have to be improved before it achieves widespread clinical use.
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Affiliation(s)
- G Grevers
- Department of Otorhinolaryngology, University of Munich, Germany
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Assal J. [Change in mandibular position in the adult resulting from raising the bite of the posterior teeth]. Schweiz Monatsschr Zahnmed (1984) 1986; 96:1022-35. [PMID: 3464094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Assal J, Arnaud C. [TMJ dysfunctional pain syndrome; general epidemiological research; comments after a study of 250 cases treated in 2 years]. SSO Schweiz Monatsschr Zahnheilkd 1980; 90:847-66. [PMID: 6936798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Bally C, Assal J. [Teaching of diabetic patients: experiences in the United States and in Geneva (author's transl)]. Schweiz Rundsch Med Prax 1977; 66:1495-8. [PMID: 918012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Assal J. Improvement and simplification of preparation and impression-taking of inlays and three-quarter crowns. Dent Pract Dent Rec 1969; 19:305-10. [PMID: 5253734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Assal J. [Improved dental cavity preparation in the proximal region]. Dtsch Zahnarztl Z 1968; 23:682-4. [PMID: 5240557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Assal J. [Improvement and simplification of the impression technic for metal inlays]. Zahnarztl Rundsch 1968; 77:48-56. [PMID: 4874748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Assal J. [Corrections and simplifications in the preparation and impression for inlays and three-quarter crowns]. Quintessenz 1968; 19:55-61. [PMID: 4871847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Assal J. [Improvements and simplifications in the tooth preparation and the taking of impressions for metallic restorations]. Rev Fr Odontostomatol 1968; 15:47-54. [PMID: 4875568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Assal J. [Corrected and simplified grinding and impression methods for the construction of metal inlays]. Zahnarztl Prax 1967; 18:297-8. [PMID: 4867835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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