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  • 1
    Electronic Resource
    Electronic Resource
    Event-related brain potentials in a varied-set memory search task: A reconsideration (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Psychophysiology 33 (1996), S. 0 
    Details
    ISSN: 1469-8986
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Event-related potentials (ERPs) were recorded in 19 healthy subjects as they completed two Sternberg (1969, American Scientist, 57, 421–457) memory tests. In separate sessions, either single digits (i.e., 0–9) or 10 abstract figures were used as stimuli. In both sessions, memory set sizes were 1 (M1), 2 (M2), or 4 (M4). The amplitude and latency of the parietal P400 and the frontocentral negativity preceding P400 varied significantly with set size, but only between M1 and M2, whereas reaction time increased dramatically from M1 to M2 and from M2 to M4. These findings challenge previous assertions that the ERPs reflect aspects of the exhaustive serial search proposed by Sternberg. A late parietal positivity (P620), which failed to vary with set size, was larger in response to figures than to digits and may represent the search for, or utilization of, semantic traces of the stimuli.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1469-8986.1996.tb02429.x
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  • 2
    Electronic Resource
    Electronic Resource
    The Micro-Mitral Operation Comparing the Port-Access Technique and the Transthoracic Clamp Technique (2000)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of cardiac surgery 15 (2000), S. 0 
    Details
    ISSN: 1540-8191
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract Background: Several minimally invasive approaches to the mitral valve have been described, including parasternal incision and right anterolateral thoracotomy. Material and Methods: Since September 1996, 58 patients underwent minimally invesive mitral valve surgery at our institution through a right anterolateral minithoractomy. Two different techniques were used for institution of cardiopulmonary bypass (CPB) and aortic clamping: in the Port-Access group (group A) patients had femoro-femoral cannulation with a special arterial cannula to introduce an endoaortic balloon clamp (n = 23). The second group (group B) of patients underwent femoro-femoral CPB as well in combination with a specially designed transthoracic aortic clamp (Chitwood technique, n = 35). Patients were assigned to either technique in a nonrandomized fashion. Demographics were similar in both groups. Results: In group A, 4 valves were replaced, 19 patients had mitral valve repair. In group B, 7 patients had valve replacement and 28 patients underwent mitral repair. Four patients in group A were converted to Chitwood technique due to endoclamp dysfunction. Operating time, CPB time, cross-clamp time, and postoperative blood loss were lower in group B (operating time 295 ± 83 min vs. 236 ± 63.9 min; CPB min 167.6 = 64.9 min vs. 137.6 ± 38.2 min; cross-clamp time 105.9 ± 51.7 min vs. 78.9 ± 25.2 min; postoperative blood loss 584 ± 428 mL vs. 323 ± 209 mL [p 〈 0.05]). Clinical outcome regarding postoperative mechanical ventilatilation time, hospital stay and hospital mortality was not different between groups. Conclusions: Minimally invasive mitral valve procedures via right anterolateral minithoracotomy, including complex valve repair, can be performed successfully using either technique. However, the Chitwood technique provides better intraoperative handling with shorter operation time and less postoperative blood loss. Additionally, costs of a procedure are less using the Chitwood technique compared to the Port-Access technique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1540-8191.2000.tb00446.x
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  • 3
    Electronic Resource
    Electronic Resource
    Posterior tracheal wall perforation with the Blue Rhino™ tracheostomy set (2002)
    Oxford, UK : Blackwell Science, Ltd
    Anaesthesia 57 (2002), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.2002.2412_13.x
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  • 4
    Electronic Resource
    Electronic Resource
    Peri-operative complications during percutaneous tracheostomy in obese patients (2005)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 60 (2005), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The safety of percutaneous tracheostomy in 73 obese patients (body mass index ≥ 27.5 kg.m−2) in a cohort of 474 adults was studied. Four percutaneous techniques were employed (percutaneous dilational tracheostomy, n = 48; Ciaglia Blue Rhino, n = 157; guide wire dilating forceps, n = 62, translaryngeal tracheostomy, n = 207). The overall complication rate was 43.8% (n = 32) in the obese group compared to 18.2% (n = 73) in the control group (p 〈 0.001). Seven (9.6%) obese patients suffered life-threatening complications compared to three non-obese patients (0.7%, p 〈 0.001). Obese patients had a 2.7-fold increased risk for peri-operative complications, and a 4.9-fold increased risk for serious complications. The data suggest that percutaneous tracheostomy in obese patients is associated with a considerably increased risk for peri-operative complications, especially for serious adverse events.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.2004.03707.x
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  • 5
    Electronic Resource
    Electronic Resource
    Translaryngeal tracheostomy in highly unstable patients (2000)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 55 (2000), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Percutaneous tracheostomy is a widely accepted and commonly performed technique for attaining long-term airway access in critically ill patients. However, severe respiratory failure and coagulopathy are relative contraindications for these procedures. We describe two patients with severe respiratory failure and inhibitor-complicated haemophilia A who underwent elective percutaneous tracheostomy performed translaryngeally, using the new Fantoni technique. Apart from two minor bleeding episodes in the haemophilic patient which were controlled promptly, no other complications occurred. If certain precautions are observed carefully, we believe that translaryngeal tracheostomy is a procedure which is superior to other percutaneous techniques and safe even in patients with severe respiratory failure and coagulopathy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.2000.01467.x
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  • 6
    Electronic Resource
    Electronic Resource
    A reply (2000)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 55 (2000), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.2000.01766-7.x
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  • 7
    Electronic Resource
    Electronic Resource
    How to Open the Mouth: the Kinetic Skull, and the Jaw and Branchial Apparatus in Sharks (2005)
    Berlin, Germany : Blackwell Verlag GmbH
    Anatomia, histologia, embryologia 34 (2005), S. 0 
    Details
    ISSN: 1439-0264
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Aims:  Mammals cannot swallow if their necks and, hence, their mm. sternohyoidei et sternothyroidei are stretched. In order to understand the functional morphology of mastication and swallowing in mammals, it is useful to understand its evolutionary origin.Material and Methods:  Five formalin-preserved specimens of the Spiny Dogfish (Squalus ancanthias) were used for dissection or to prepare sagittal or transverse serial sections.Results and Conclusions:  The feeding apparatus of the shark Squalus acanthias as a representative of the cartilaginous fishes serves as an excellent model of that of an ancestral vertebrate with a kinetic skull, in which the chondrocranium is movable relative to the jaw apparatus. To open the mouth, the cranium is raised by the epibranchial musculature, the palatoquadrate cartilage (i.e., upper jaw) is entrained, and the mandibular cartilage is held in place and prevented from following the upper jaw by the coracomandibular muscle. At the same time, the branchial basket and oropharyngeal cavity are expanded and held in place by the coracohyoid and coracoarcual muscles, which prevent the hyoid and branchial arches from being entrained cranially by the raised chondrocranium. The mandible is not retracted during the opening of the mouth in sharks because the branchial region would have to be compressed instead of expanded. In the course of the evolutionary modifications leading to mammals, the heart and respiratory apparatus became decoupled from the feeding apparatus through the formation of a neck. The skull became akinetic through the integration of the upper jaw into the base of the cranium. The mouth is not opened any longer by lifting the cranium, but by depressing the mandible through a special muscle, the m. depressor mandibulae. The coracomandibular muscle lost its function as a stabilizer of the mandible during mouth opening and became modified into the lingual and geniohyoid muscles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0264.2005.00669_46.x
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  • 8
    Electronic Resource
    Electronic Resource
    Research activities of doctoral school psychologists
    Amsterdam : Elsevier
    Journal of School Psychology 16 (1978), S. 34-41 
    Details
    ISSN: 0022-4405
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-4405(78)90020-1
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  • 9
    Electronic Resource
    Electronic Resource
    Test-condition-dependent influence of harman and nonharman on benzo[a]pyrene mutagenesis in Salmonella
    Amsterdam : Elsevier
    Mutation Research Letters 104 (1982), S. 9-15 
    Details
    ISSN: 0165-7992
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0165-7992(82)90113-0
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  • 10
    Electronic Resource
    Electronic Resource
    Tödliche Bergunfälle (2000)
    Springer
    Notfall + Rettungsmedizin 3 (2000), S. 343-349 
    Details
    ISSN: 1436-0578
    Keywords: Schlüsselwörter Bergrettung ; Bergunfälle ; IKAR ; Notfallmedizin ; Keywords Emergency medicine ; ICAR ; Mountain accident ; Mountain rescue
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Media reports convey the impression that the incidence of fatal accidents in the European Alps has been increasing yearly at an alarming rate. Although objective data is lacking, the annual reports of the mountain rescue services in Germany, Austria, the southern Tirol, Switzerland and the Chamonix region in France were analysed with respect to the fatal and non-fatal accidents which occurred between 1987 and 1997. Because of varying definitions of “mountain accident” used in these countries, available data about the number of fatalities are not comparable. The total number of documented fatal mountain accidents increased slightly from 472 in 1987 to 559 in 1997. The maximum number was 591 in 1988, the minimum was 436 in 1995. In future data concerning mountain accidents should be monitored according to standard definitions. The “International Commission for Alpine Rescue” (ICAR) will collect and store the findings in an international databank.
    Notes: Zusammenfassung Berichte in den Massenmedien vermitteln den Eindruck, dass in jedem Jahr mehr Touristen in den europäischen Alpen tödlich verunfallen. Da objektive Daten fehlen, wurden die Jahresberichte der Bergrettungsdienste aus Deutschland, Österreich, Südtirol, der Schweiz sowie der Region um Chamonix (Frankreich) bezüglich tödlicher bzw. nicht-tödlicher Bergunfälle der Jahre 1987–1997 zusammengetragen und analysiert. Auf Grund der unterschiedlichen Definitionen des Bergunfalls in den genannten Ländern ist eine Analyse und Interpretation der vorhandenen Daten nur bedingt möglich. Die Gesamtzahl dokumentierter tödlicher Bergunfälle hat von 472 Toten im Jahre 1987 auf 559 Tote in 1997 scheinbar nur geringfügig zugenommen (Maximum 1988: 591 Tote, Minimum 1995: 436 Tote). Zukünftig sollten Daten über Bergunfälle gemäß einheitlicher verbindlicher Definitionen in einer internationalen Datenbank der “Internationalen Kommission für Alpines Rettungswesen” (IKAR) gesammelt werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100490070027
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