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  • 1
    Electronic Resource
    Electronic Resource
    Percutaneous transhepatic embolization of a spontaneous mesocaval shunt after liver transplantation (1994)
    Springer
    European radiology 4 (1994), S. 479-482 
    Details
    ISSN: 1432-1084
    Keywords: Liver transplantation ; Mesocaval shunt ; Catheter embolization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A preoperatively undetected spontaneous mesocaval shunt lead to impairment of organ function after liver transplantation. Ischemia of the graft due to partial hepatofugal portal flow was demonstrated by color-flow Doppler sonography and angiography. The successful catheter embolization of the mesocaval shunt via a transhepatic approach is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00212827
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  • 2
    Electronic Resource
    Electronic Resource
    Pulsed versus continuous wave excitation mechanisms in photodynamic therapy of differently graded squamous cell carcinomas in tumor-implanted nude mice (1993)
    Springer
    European archives of oto-rhino-laryngology and head & neck 250 (1993), S. 82-87 
    Details
    ISSN: 1434-4726
    Keywords: Squamous cell carcinoma ; Photodynamic therapy ; Excimerdye laser ; Pulsed excitation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effectiveness of photodynamic therapy (PDT) in vivo was compared between the pulsed excimer laser-pumped dye laser system (EDL) and the continuous wave (cw) argon laser-pumped dye laser system (ADL). Serial subcutaneous transplantation was used to implant thymus aplastic nude mice with different grades of malignancy of two human squamous cell carcinomas (SCCs). Forty-eight hours after i.v. injections of a hematoporphyrin derivative (Photosan 3), the animals were irradiated with either pulsed-EDL or cw-ADL laser light at a tumor depth of 4–5 mm. The irradiation data were chosen as follows: EDL and ADL wavelength 630 nm, total dose 150 J/cm2, irradiation time 27.78 min; EDL repetition rate 30 Hz, single pulse energy 3 mJ, pulse width 20 ns; ADL intensity 90 mW/cm2. The effects of PDT were studied either by long-term observation of the animals treated or by evaluation of hematoxylin-eosin and Ki-67 histological sections of tumors 48 h after treatment. The EDL system proved to be at least as efficient as the ADL system as judged by the number of complete remissions. This became particularly evident in the treatment of the lower-graded tumors, with a good response observed in both transplanted SCCs. However, the higher-graded tumors showed a better response to PDT.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00179303
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Selective neck dissection in the management of squamous cell carcinoma of the upper digestive tract (1996)
    Springer
    European archives of oto-rhino-laryngology and head & neck 253 (1996), S. 329-335 
    Details
    ISSN: 1434-4726
    Keywords: Squamous cell carcinoma ; Selective neck dissection ; Upper digestive tract
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Selective neck dissection has been used clinically in elective treatment of carcinoma, although many surgeons continue to advocate modified radical or radical neck dissection for therapeutic management of the neck. In a retrospective study 167 previously untreated patients were reviewed following curative laser microsurgical resections of oral or pharyngeal primary tumors and a unior bilateral selective neck dissection. In all, 221 (54 bilateral) neck dissections were performed. In patients with oral primary disease lymph nodes of levels I–III were removed, while nodes in levels II and III were removed in patients with pharyngeal tumors. Level IV was dissected when several metastases were suspected during operation. The posterior triangle was not dissected. Lymph nodes were histopathologically negative in 73 patients and positive in 94 patients. Twenty-five of these latter cases had pN1 disease, 55 had pN2b disease and 10 had bilateral lymph node metastases. Twenty patients in the pN0 group and 63 patients in the pN+ group received postoperative radiotherapy (to 56.7 Gy to the primary site and 52.5 Gy to the neck). With a median follow-up interval of 34 months, recurrence in the dissected neck occurred in 3 of 73 patients (4.1%) with pN0 disease and 6 of 90 patients (6.6%) with pN+ necks. Four patients with pN+ necks had simultaneous recurrences at the primary site. The addition of adjuvant radiotherapy seemed to improve disease control in the neck and improve overall survival in patients with an unfavorable prognosis due to multiple metastases or metastases with extracapsular spread.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00178287
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    Paper (German National Licenses)
    Fulltext
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