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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 231 (1981), S. 565-567 
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary For the exact evaluation of a motor nerve dysfunction there is no better technique than electromyography and electroneuromyography. The development of new endoscopes has enabled the laryngologist to control the oropharyngeal and endopharyngeal muscles with direct inspection. The combination of the zoom-endoscope with needle electromyography now allows the separate investigation of the muscular agonists and antagonists in the awake patient. The development of this method is demonstrated in the film. With electroneuromyography, furtheron, it has become possible to test the reflex pathway in order to localize the site of a lesion of the laryngeal nerves. The practicability of these methods, especially when using the 80 μm copperwire electrodes is shown.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 216 (1977), S. 559-560 
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In our series of 140 carcinomas of the oro-pharyngeal region smoking, alcohol abusus and diminished care of oral hygiene were obvious cofactors of cancer etiology. Most tumours were found in the lower social class. In contrast to other findings in the literature chronic mechanic trauma was frequent in our patients, resulting from sharp rests of teeth, insufficient conservation, or malfitting prosthesises. The epithelial lining showed, according to the clinical findings, histological inflammation, hyperkeratosis, carcinoma in situ or even growth of carcinoma. Therefore, optimal prosthesises and oral hygiene are important factors in the prevention of carcinomas of this region.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 219 (1978), S. 347-349 
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In 25 children with chronic disease of the maxillary sinus we did sinutomy with the transnosal way since 1976. A mucosal flap is cut after lateroposition of the lower concha, so that the lateral wall of the nose can be opened wide for removing of pathologic structures of the maxillary sinus under endoscopic control. It is important to take care of the not alterated mucosa. In our patients there could be seen a mucosal reaction 4 weeks after operation, but another 4 weeks later there were normal x-rays with ventilated maxillary sinuses. Therefore this method till now mainly practised in adults can be employed for children, too.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 227 (1980), S. 478-481 
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Spontaneous or voluntary lesions of the facial nerve occur in trauma or tumour of the temporal bone-region and the parotid gland, seldom the facial nerve itself, as well as in surgical treatment of these diseases. In 1973–1977 rehabilitation of these patients was done by nerve grafting or suturing in the technique according to Millesi and Samii, in the last some cases by non-sutured nerve anastomosis using fibrinogen as clotting substance. The functional cosmetic results were determined using Stennert's residual paralysis index. In addition neurophysiological test methods such as nerve excitability test, electrically elicited blink reflex, electromyography and electroneurography were used for comparative purposes in the follow-up examination between 37 patients with radical and 80 patients with total parotidectomy.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    HNO 48 (2000), S. 75-90 
    ISSN: 1433-0458
    Keywords: Schlüsselwörter ; 3D-Navigation ; Rahmenlose Stereotaxie ; Computerunterstützte Chirurgie ; Intraoperative Navigation ; Key words ; 3D-navigation ; Frameless stereotaxy ; Computer aided surgery ; CAS ; Intraoperative navigation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary 3D-navigation systems have only recently been introduced into the surgical field. Since then they have gained increasing importance not only in ENT surgery but also in neurosurgery, orthopedic surgery, maxillo-facial surgery, radiology and radiotherapy. Following a brief historical introduction this article reviews existing navigation technologies, in terms of indication, practicability, accuracy, forensic and financial aspects. The selection of the navigation system is strongly influenced by the planned procedure (endoscopic, microscopic, open approach). According to our experience most of these systems provide useful support intraoperatively. The clinical application accuracy regularly lies in the range of 1–2 mm.
    Notes: Zusammenfassung Seit der Entwicklung und der kommerziellen Verfügbarkeit von intraoperativen 3D-Navigationssystemen hat diese Technologie nicht nur in der Hals-Nasen-Ohrenchirurgie sowie der Neurochirurgie, sondern auch anderen Disziplinen, wie Orthopädie, Kieferchirurgie, Strahlentherapie und Radiologie an Bedeutung gewonnen. Nach einem kurzen historischen Überblick werden unterschiedliche Navigationstechnologien in ihrer Arbeitsweise dargestellt und anhand von klinischen Anwendungen verdeutlicht. Die Auswahl des geeigneten Navigationssystems richtet sich nach der Art des geplanten Eingriffs (endoskopisch, mikroskopisch, kombiniert). Durch intensive Weiterentwicklung dieser Systeme leisten sie bereits heute eine wertvolle Unterstützung für den HNO-Chirurgen. Die derzeit erzielbare intraoperative Genauigkeit liegt für die meisten Systeme regelhaft bei 1–2 mm.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1433-0458
    Keywords: Schlüsselwörter Larynx ; Karzinom ; Vordere Kommissur ; Kehlkopfteilresektion ; Rezidivtherapie ; Key words Laryngeal carcinoma ; Anterior commissure ; Vertical partial laryngectomy ; Treatment for tumour recurrences
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Management of laryngeal carcinoma located at the anterior commissure remains controversial. Local control rates with radiotherapy or surgery are not as good as those seen after treatment of midcord lesions. The vertical partial laryngectomy with epiglottic reconstruction (VPLER) may be a more successful approach to such lesions. The charts of all patients treated for larynx carcinoma between 1991 and 1996 at the authors’ institutions were reviewed to identify those patients treated with VPLER as described by Sedlacek in 1965, Kambic in 1976 and Tucker in 1979. Indications for performing surgery and outcome data of patients were collected and analyzed according to the indications for surgery, surgical technique, perioperative complications, oncological outcomes and functional results. Twelve patients were identified that had been treated with VPLER. Indications for surgery included five patients with local recurrences following endoscopic laser partial laryngectomies, four cases with previously untreated primary tumors at the anterior commissure (T2 N0–2 M0), two with local recurrences following radiotherapy, and one with recurrence following frontolateral partial laryngectomy. There were no postoperative complications except for one laryngocutaneous fistula that required secondary repair. All patients were able to swallow at the tenth postoperative day. All had their tracheostomies closed after completion of wound healing, (a mean of 17 days after surgery). Phonatory results were usually poor. Two local recurrences occurred during the follow-up period. However, both patients were salvaged with total laryngectomies and have since been free from disease. All other patients are alive and well. Our findings show that VPLER is an effective surgical approach for carcinoma at the anterior commissure of the larynx that cannot be adequately managed with transoral laser surgery or simple frontolateral partial laryngectomy. This study demonstrates that the procedure can be successfully applied to the treatment of local recurrences following initial raditherapy or surgery. No major complications occurred in our study.
    Notes: Zusammenfassung Hintergrund: Karzinome der vorderen Kommissur sind eine Schwachstelle der üblichen kehlkopferhaltenden Therapieverfahren. Die rekonstruktive Kehlkopfteilresektion nach Sedlacek-Kambic-Tucker erlaubt eine besonders weite Resektion des vorderen Schildknorpels und der anterioren Glottis. Indikationen, Technik und Ergebnisse werden am Krankengut der Kölner und Innsbrucker Klinik dargestellt. Methode: Es wurden die Akten aller Patienten retrospektiv ausgewertet, die zwischen 1991 und 1996 wegen eines Larynxkarzinoms operiert wurden. Ergebnisse: Bei 12 von 543 Patienten mit Larynxkarzinomen erfolgte eine rekonstruktive Kehlkopfteilresektion nach Sedlacek-Kambic-Tucker. Bis auf eine Fistelbildung traten keine Komplikationen auf. Bei einer mittleren, peroralen Ernährung ab dem 10. postoperativen Tag konnten alle Tracheostomien im Mittel am 17. postoperativen Tag verschlossen werden. Chronische Aspirationen oder Stenosen wurden nicht beobachtet. Die stimmlichen Ergebnisse sind aufgrund des ungenügenden Glottisschlusses und der unphysiologischen Konfiguration der rekonstruierten vorderen Kommissur schlecht. Schlußfolgerung: Die rekonstruktive Kehlkopfteilresektion nach Sedlacek-Kambic-Tucker hat eine sehr enge Indikationsstellung, ermöglicht aber eine chirurgisch sichere, radikale Resektion des vorderen Kehlkopfs, insbesondere auch bei Rezidivkarzinomen, mit onkologisch guten und funktionell zufriedenstellenden Ergebnissen.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1433-0458
    Keywords: Schlüssselwörter Eismann ; Computerunterstützte Chirurgie ; CAS-Intraoperative Navigation ; Schleimhautbiopsien ; Key words Prehistoric Iceman ; Computer assisted surgery ; Intraoperative navigation ; Mucosal biopsies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The University of Innsbruck possesses a unique prehistoric, completely conserved 5300-year-old human cadaver. We report our experiences during which ENT specialists collected samples from various cavities inside the Iceman. Guidance of biopsy instruments was accomplished with computer-assisted navigation based on Interventional Video Tomography. This technology allows surgical guidance by interlinking currently available imaging modalities with live endoscopic video. The system operates without patient fixation and is practically free of external contact. Apart from sterility, special precautionary measures were necessary to avoid contamination with heavy metals or microorganisms. Visual inspection of the samples of mucosa from the nose, maxillary sinus and larynx revealed the typical patterns of a human cadaver without overt pathology.
    Notes: Zusammenfassung Die Universität Innsbruck bewahrt einen einzigartigen prähistorischen Fund: eine vollständige, erstaunlich gut erhaltene 5300 Jahre alte Gletscherleiche. Wir berichten über die Gewinnung menschlicher archäologischer Gewebeproben unter Verwendung modernster minimal-invasiver computerunterstützter 3D-Navigationstechniken. Neben Erfüllung der üblichen hygienischen Standards mußte in diesem Spezialfall eine Kontamination des Eismannes mit Schwermetallen, Partikeln, oder Teilen von Mikroorganismen vermieden werden. In dem Eingriff wurden Proben aus der Nasenschleimhaut, der Kieferhöhle und dem Larynx gewonnen. Eine klinische Beurteilung durch den Operateur zeigte – trotz ihres Alters – eine typische, gesunde humane Kadaverschleimhaut.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1433-0458
    Keywords: Schlüsselwörter Intraoperative Navigation ; Computerunterstützte Chirurgie ; Felsenbein ; Modellstudie ; ISG Viewing Wand ; Key words Intraoperative navigation ; Computer-assisted surgery ; Petrous bone ; Anatomic model ; ISG Viewing Wand
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Surgical interventions in the petrous bone have to be performed in close relationship to vital and delicate anatomical structures. In cases of revision surgery or with massive pathological changes 3D computer-assisted navigation provides an essential tool for preoperative planning, definition of target structures and intraoperative orientation. This technology can help to diminish intraoperative risks for the patient and may help to optimize any microsurgery. In this report we present our first experiences in using the ISG Viewing Wand in the petrous bone through a specially designed model. By recording more than 4000 single measurements we found that the ISG Viewing Wand can be used with sufficient precision. We have now outlined the most important conditions necessary for possible application to a patient.
    Notes: Zusammenfassung Chirurgische Eingriffe am Felsenbeim werden in engster Nachbarschaft von vitalen Strukturen durchgeführt. Bei Revisionsoperationen oder bei ausgedehnten pathologischen Veränderungen kann der Chirurg durch den Einsatz computerunterstützter intraoperativer 3D-Navigation zur Orientierung und Definition von Zugangswegen sowie Zielstrukturen, Operationsrisiken entscheidend verringern. Wir zeigen die Möglichkeiten und Grenzen eines Einsatzes der ISG Viewing Wand (ISG Technologies, Mississauga, Ontario, Kanada) für dieses neue Einsatzgebiet anhand von Genauigkeitsmessungen an einem Felsenbeinmodell auf. Die unter möglichst realistischen Bedingungen durchgeführten Messungen am Modell zeigen, daß die ISG Viewing Wand unter bestimmten Voraussetzungen bei Eingriffen am Felsenbein verwendet werden kann, so daß der Operateur eine zuverlässige intraoperative Navigation zur Verfügung hat. Wir präsentieren die Ergebnisse aus über 4000 Einzelmessungen und skizzieren einen möglichen Einsatz am Patienten.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 7-10 
    ISSN: 1279-8517
    Keywords: 3D navigation ; Stereotactic endonasal operation ; Paranasal sinus anatomy ; Computer assisted surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Minimal invasive endoscopic operations in the paranasal sinuses rely on the detailed knowledge of the individual anatomy, in particular the relationship of the sinus system to neighbouring delicate and vulnerable anatomical structures. Digital CT and MR images are used for 3D reconstruction of the operating field, providing the basis for most 3D navigation systems, guiding the surgeon in close vicinity to delicate structures and so minimising the risk of iatrogenic trauma. We report the application of the ISG Viewing Wand, a computer-assisted navigation system, in endoscopic endonasal surgery related to the anatomy of the paranasal sinuses.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 223 (1979), S. 458-460 
    ISSN: 1434-4726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Recent developments in total body computerized tomography result in shortening of the time and amount of radiation, avoiding artefacts caused by patient's movement and exact definition of the slice by topograms. In comparison to conventional X-ray-tomograms there are further informations concerning especially the retromaxillar region and the neck by better differentiation of the density of soft tissue. The possibility of storage and easy reproduction of the tomograms is important for interdisciplinary treatment of neoplasms.
    Type of Medium: Electronic Resource
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