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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing
    The @journal of analytical psychology 29 (1984), S. 0 
    ISSN: 1468-5922
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Psychology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing
    The @journal of analytical psychology 16 (1971), S. 0 
    ISSN: 1468-5922
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Psychology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing
    The @journal of analytical psychology 22 (1977), S. 0 
    ISSN: 1468-5922
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Psychology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    World journal of surgery 19 (1995), S. 509-516 
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé On a récemment souligné l'intérêt, chez les patients ayant un cancer gastrique, de la chimiothérapie néoadjuvante pour améliorer le taux de résecabilité complète des tumeurs, pour combattre des métastases systémiques et pour prolonger la survie. En effet, les études disponibles indiquent que la chimiothérapie néoadjuvante est faisable sans augmenter ni la mortalité ni la morbidité. Comparée aux résultats obtenus aujourd'hui par la résection primitive associée à un curage, la chimiothérapie préopératoire, par contre, ne s'est pas montrée capable d'améliorer le taux de résecabilité des tumeurs estimées résécables à priori. Chez le patient ayant un cancer avancé ou non résécable, par contre, la chimiothérapie préopératoire peut réduire considérablement le volume tumoral et augmenter la possibilité de résection. Chez le patient qui répond à la chimiothérapie et qui a, par la suite, une résection complète de la tumeur, la survie apparaît donc améliorée. An raison d'imperfections dans la conception même de certaines de ces études, cependant, il n'est pas possible de tirer des conclusions définitives. Des études contrôlées, et randomisées, sont clairement nécessaires. Un «staging» préthérapeutique exact, une technique de résection et de curage standardisée, une évaluation diligente de la pièce après résection ainsi qu'un suivi rigoureux sont essentiels dans l'élaboration de ces essais pour identifier le sous-groupe de patients ayant un cancer gastrique qui pourraient bénéficier de la chimiothérapie néoadjuvante.
    Abstract: Resumen En tiempos recientes ha merecido creciente atención la quimioterapia neoadyuvante en un intento por aumentar las tasas de resecciones tumorales completas, combatir metástasis sistémicas y prolongar la supervivencia en pacientes con cáncer gástrico. La información disponible indica que la terapia neoadyuvante es factible y no aumenta la morbilidad ni la mortalidad postoperatorias. En comparación con los resultados que actualmente se obtienen con la resección primaria y la linfadenectomía, la quimioterapia preoperatoria hasta ahora, sin embargo, ha fallado en cuanto a demostrar un claro incremento en la rata de resección completa del tumor en los pacientes con cáncer gástrico resecable. En los pacientes con cáncer gástrico localmente avanzado o no resecable, la quimioterapia preoperatoria puede causar una reducción sustancial de la masa local-regional, y, por lo tanto, un incremento en la tasa de resección. Esto parece traducirse en un beneficio de supervivencia en aquellos pacientes que responden a la quimioterapia y que luego son sometidos a una resección completa de su tumor. Debido a severas limitaciones en el diseño de los informes publicados, no es posible derivar conclusiones definitivas a partir de la información disponible. Por lo tanto, aparece clara la necesidad de realizar ensayos clínicos prospectivos y randomizados. Una muy exacta estadificación tumoral preterapéutica, la resección estandarizada y la técnica de linfadenectomía, el examen meticuloso del espécimen resecado y un cuidadoso seguimiento son esenciales cuando se diseñen ensayos clínicos y se pretenda identificar subgrupos de pacientes que puedan beneficiarse de quimioterapia neoadyuvante para el carcinoma gástrico.
    Notes: Abstract Neoadjuvant chemotherapy has recently received increasing attention in an attempt to increase the rate of complete tumor resections, combat systemic metastases, and prolong survival in patients with gastric cancer. The available data indicate that neoadjuvant chemotherapy is feasible and does not increase postoperative morbidity and mortality. Compared to the results that can today be obtained with primary resection and lymphadenectomy, however, preoperative chemotherapy has so far failed to show a clear increase in the rate of complete tumor removal in patients with resectable gastric cancer. In patients with locally advanced or unresectable gastric cancer, preoperative chemotherapy may cause substantial reduction in locoregional tumor mass and thus increase the resection rate. This finding appears to translate into a survival benefit for those who respond to chemotherapy and have subsequent complete tumor resection. Because of severe shortcomings in the study design of the published reports, definite conclusions cannot be drawn from the available studies. Randomized controlled prospective trials are therefore clearly warranted. Exact pretherapeutic tumor staging, standardized resection and lymphadenectomy techniques, diligent evaluation of the resected specimen, and close follow-up are essential when designing these trials to identify subgroups of patients who may benefit from neoadjuvant chemotherapy for gastric carcinoma.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1433-044X
    Keywords: Key words Disko-ligamentous-lesions • Lumbar instability • Dynamic and static stabilisation • Spinal biomechanics ; Schlüsselwörter Diskoligamentäre Läsionen • Lumbale Instabilität • Statische und dynamische Stabilisierung • Biomechanik
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Läsionen des dorsoventralen Ligamentkomplexes führen zu einer Instabilität des lumbalen Bewegungssegments. Prognostisch stellen diskoligamentäre Verletzungen infolge der bleibenden Narbenbildung ein größeres Problem dar als der ossäre Stabilitätsverlust mit rascher Heilungstendenz. Mit der vorliegenden biomechanischen In-vitro-Studie wurden verschiedene Instabilitätsgrade in der Korrelation zum Ausmaß diskoligamentärer Defekte nachgewiesen. Durch eine transpedikuläre Stabilisierung mit einem Schrauben-Ringband-System wurde bei segmentalem Funktionserhalt die Instabilität aufgehoben. Mit einem rigiden Schrauben-Stab-System verblieb eine geringe Restbeweglichkeit, infolge der Biegebeanspruchung kann ohne Spondylodese ein Implantatversagen resultieren.
    Notes: Summary Defects of the dorsal and ventral ligament complexes of the lumbar spine results to an instability of the functional spinal unit. For the prognosis of secondary instability due to disko-ligamentous injuries the functional insufficiency of the lasting scars is a larger problem than the primar loss of osseous stability with fast healing tendency. The main goal of the present biomechanical study in vitro was to demonstrate the different grades of instability in the correlation to progressive disko-ligamentous defects as well as stabilisation through dynamic and static procedures. With a transpedicular screw-ringband-system the segmental function was preserved and instability was abolished. After rigid instrumentation with a fixateur intern remained a residual range of motion due to which can result refuse to bending moments without spondylodesis in an implant failure.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0584
    Keywords: Chronic myelogenous leukemia ; Interferon-antibodies ; Interferon alpha-2 b ; Natural human interferon alpha
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A patient with Philadelphia-chromosome positive chronic myelogenous leukemia developed interferon antibodies on treatment with recombinant interferon alpha-2 b. Clinically this event corresponded with progressive disease. No cross-reactivity of antibodies with human leukocyte interferon was found by Western blot. Treatment was switched to human leukocyte interferon with an obvious clinical effect: WBC was reduced and platelet count stabilized, but the effect was transient and no hematologic remission was achieved. Human leukocyte interferon may be an alternative in CML-patients with neutralizing antibodies to recombinant interferon alpha.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1238
    Keywords: Key words Tracheostomy: percutaneous, translaryngeal ; Complications ; Oxygenation ; Intensive care medicine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objectives: Elective tracheostomy is an established procedure in the management of ICU patients on long-term ventilation. In addition, percutaneous tracheostomy techniques are increasingly being used. In 1997, Fantoni's translaryngeal technique (TLT), another minimally invasive procedure, was introduced. While clinical studies of TLT showed that the technique is safe and can be performed rapidly, technical difficulties which sometimes led to prolonged operating times were also noted. Our study compared the basic TLT technique to a modified TLT approach and to TLT performed with the manufacturer's new, improved “Straight Cannula” set. Twenty-five patients were enrolled in each group, and the advantages and disadvantages of the respective techniques were evaluated.¶Setting: Surgical ICU of a university hospital.¶Patients: Seventy-five adult, surgical intensive care patients.¶Measurements and results: Average operating times with the modified TLT techniques were significantly shorter, 4 and 5 min respectively, as compared to 11 min for the basic TLT technique. Initially, use of the new, improved TLT set resulted in a complete passage of the tracheal cannula in two patients; uneventful Griggs's tracheostomy was performed instead. Regardless of the technique used, no other perioperative complications were noted and the perioperative gas exchange remained unaffected by the tracheostomy procedure.¶Conclusions: The modified TLT procedures are safer and more readily performed than the basic technique. Difficulty in the retrograde passage of the guide wire was seen only occasionally with the modified techniques. Based on our data we conclude that the modified techniques are superior to the basic technique and represent significant progress in TLT.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0932
    Keywords: Spinal biomechanics Stiffness ; Motion ; Calf ; In vitro testing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The availability of human cadaveric spine specimens for in vitro tests is limited and the risk of infection is now of vital concern. As an alternative or supplement, calf spines have been used as models for human spines, in particular to evaluate spinal implants. However, neither qualitative nor quantitative biomechanical data on calf spines are available for comparison with data on human specimens. The purpose of this study was to determine the fundamental biomechanical properties of calf spines and to compare them with existing data from human specimens. Range of motion, neutral zone, and stiffness properties of thoracolumbar calf spines (T6-L6) were determined under pure moment loading in flexion and extension, axial left/right rotation and right/left lateral bending. Biomechanical similarities were observed between the calf and reported human data, most notably in axial rotation and lateral bending. Range of motion in the lumbar spine in flexion and extension was somewhat less in the calf than that typically reported for the human, though still within the range. These results suggest that the calf spine can be considered on a limited basis as a model for the human spine in certain in vitro tests.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-0932
    Keywords: Key words Spine ; Biomechanics ; Implant testing ; In vitro testing ; Test standard
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract New implants and new surgical approaches should be tested in vitro for primary stability in standardized laboratory tests in order to decide the most appropriate approach before being accepted for clinical use. Due to the complex and still unknown loading of the spine in vivo a variety of different test loading conditions have been used, making comparison of the results from different groups almost impossible. This recommendation was developed in a series of workshops with research scientists, orthopedic and trauma surgeons, and research and development executives from spinal implant companies. The purpose was to agree on in vitro testing conditions that would allow results from various research groups to be compared. This paper describes the recommended loading methods, specimen conditions, and analysis parameters resulting from these workshops.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0932
    Keywords: Key words Cervical spine ; Biomechanics ; Flexibility ; Interbody fusion device
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Interbody fusion cages are small hollow implants that are inserted into the intervertebral space to restore physiological disc height and to allow bony fusion. They sometimes cause clinical complications due to instability, subsidence or dislocation. These are basic biomechanical parameters, which influence strongly the quality of a fusion device; however, only few data about these parameters are available. Therefore, the purpose of the present study was to investigate the primary stabilizing effect of four different cervical fusion devices in in vitro flexibility tests. Twenty-four human cervical spine segments were used in this study. After anterior discectomy, fusion was performed either with a WING cage (Medinorm AG, Germany), a BAK/C cage (Sulzer Spine-Tech, USA), an AcroMed cervical I/F cage (DePuy AcroMed International, UK) or bone cement (Sulzer, Switzerland). All specimens were tested in a spine tester in the intact condition and after implantation of one of the four devices. Alternating sequences of pure lateral bending, flexion-extension and axial rotation moments (± 2.5 Nm) were applied continuously and the motions in each segment were measured simultaneously. In general, all tested implants had a stabilizing effect. This was most obvious in lateral bending, where the range of motion was between 0.29 (AcroMed cage) and 0.62 (BAK/C cage) with respect to the intact specimen (= 1.00). In lateral bending, flexion and axial rotation, the AcroMed cervical I/F cages had the highest stabilizing effect, followed by bone cement, WING cages and BAK/C cages. In extension, specimens fused with bone cement were most stable. With respect to the primary stabilizing effect, cages, especially the AcroMed I/F cage but also the WING cage and to a minor extent the BAK/C cage, seem to be a good alternative to bone cement in cervical interbody fusion. Other characteristics, such as the effect of implant design on subsidence tendency and the promotion of bone ingrowth, have to be determined in further studies.
    Type of Medium: Electronic Resource
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