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  • 1995-1999  (4)
  • 1990-1994  (3)
  • 1965-1969
  • 1930-1934
  • Chemotherapy  (7)
  • 1
    ISSN: 1530-0358
    Keywords: Anal canal cancer ; Combination therapy ; Radiation ; Chemotherapy ; MIB1 ; Ploidy ; Prognostic factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract PURPOSE: This study contained herein assessed long-term results, toxicity, and prognostic variables following combined modality therapy of patients with International Union Against Cancer Classification T1–4, N0–3, M0 squamous-cell carcinoma of the anal canal. PATIENTS AND METHODS: Between 1985 and 1996, 62 patients completed treatment with combined modality therapy. A median total dose of 50 Gy was given to the primary, perirectal, presacral, and inguinal nodes followed by a local boost in selected cases. 5-Fluorouracil was scheduled as a continuous infusion of 1,000 mg/m2 per 24 hours on days 1 to 5 and 29 to 33 and mitomycin C as a bolus of 10 mg/m2 on days 1 and 29. Routinely processed paraffin-embedded sections were stained using monoclonal antibodies for detection of proliferating cell nuclear antigen and MIB1 (Ki-67) antigen to determine the labeling index. In addition, DNA ploidy was assessed after Feulgen staining. RESULTS: Actuarial cancer-related survival, no evidence of disease survival, and colostomy-free survival rates at five years were 81, 76, and 86 percent, respectively. In univariate analysis, T category (T1/2 vs. T3/4) was predictive for no evidence of disease survival (87vs. 59 percent;P=0.03) and colostomy-free survival (94vs. 73 percent;P=0.05). N category (N0vs. N1–3) influenced actuarial cancer-related survival (85vs. 58 percent;P=0.002) and no evidence of disease survival (80vs. 53 percent;P=0.02). A higher proliferative potential as measured by the MIB1 labeling index was associated with a better colostomy-free survival (90vs. 50 percent;P=0.04). In multivariate analysis, actuarial cancer-related survival was only influenced by the N category (P=0.03) and no evidence of disease survival by N category (P=0.03) and mitomycin C dose (P=0.04). Salvage abdominoperineal resection achieved long-term control in only four of seven patients with local failures. CONCLUSION: Treatment with a combination of radiotherapy and chemotherapy is safe and effective for patients with anal canal carcinoma. Abdominoperineal resection is indicated as a salvage procedure in nonresponding and recurrent lesions and may be of benefit in a small subgroup of patients with poor prognostic factors.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of cancer research and clinical oncology 119 (1993), S. 384-394 
    ISSN: 1432-1335
    Keywords: Gastric carcinoma ; Gastric surgery ; Multimodality treatment ; Chemotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Surgery still represents the therapy of choice for patients with primary gastric adenocarcinoma. The best survival results can be achieved if a potentially curative (R0) resection can be performed whatever the extent of resection of the primary tumor (total versus subtotal distal gastrectomy). Either procedure should be accompanied by systematic lymph node dissection since lymphadenectomy has relevant diagnostic (i.e. staging) and therapeutic implications (i.e. improved survival in stage II/IIIA disease). Since most gastric carcinomas are diagnosed in advanced tumor stages, the number of patients to be treated curatively by surgery alone remains limited. Multimodality treatment, consisting of chemotherapy and surgery, may be an encouraging alternative strategy. With actual chemotherapy protocols (i.e. 5-FU/doxorubicin/methotrexate, etoposide/doxorubicin/cisplatin) high remission rates in locally advanced irresectable lesions without distant metastases can be induced. Survival in these patients has been significantly improved after chemotherapy and second-look surgery. The effectiveness of these protocols in an adjuvant setting seems a worthwhile study for the future. In addition, immunological and somatic gene therapy may be of therapeutic impact in the next decade.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1335
    Keywords: Key words Breast cancer ; Chemotherapy ; Transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of this phase II study was to evaluate the therapeutic efficacy and toxicity of a tandem or triple high-dose chemotherapy (HDC) with autologous peripheral blood stem cell transplantation (PBSCT) in patients with metastatic breast cancer (MBC) as first line chemotherapy. Conventional chemotherapy consisted of two cycles of epirubicin 120 mg/m2 and ifosfamide 7500 mg/m2 in the case of tandem HDC and one cycle of paclitaxel 135 mg/m2, epirubicin 90 mg/m2 and ifosfamide 6000 mg/m2 in the case of triple HDC. Tandem HDC was composed of two cycles of epirubicin 180 mg/m2, ifosfamide 12000 mg/m2 and carboplatin 900 mg/m2. In the case of triple HDC, paclitaxel 180 mg/m2, etoposide 1500 mg/m2 and thiotepa 600 mg/m2 was added as the third cycle. Patients with tandem HDC (n = 20) were evaluable for both survival and toxicity, and patients with triple HDC (n = 21) only for toxicity because of short-term follow-up. Both tandem and triple HDC were well tolerated and could be safely administered. Non-hematological WHO grade 3 or 4 toxicities were mucositis (8), temporary renal insufficiency (1), myocardial infarction (1), and neuropathy (1). No toxic death occurred. The Kaplan-Meier estimates for 44-months without progression and the overall survival were 12% and 38% respectively. The median survival was 22 months (95% CI: 7.4–51.7 months) and the median progression-free interval 14 months (95% CI: 5.1–43.7 months). In a population with an unfavorable prognosis, tandem HDC showed similar efficacy as to that described in other phase II studies. Triple HDC seems not to improve patient outcome compared to tandem HDC, but a long-term follow up is required.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 378 (1993), S. 292-296 
    ISSN: 1435-2451
    Keywords: Pseudomyxoma peritonei ; Surgical therapy ; Morbidity ; Chemotherapy ; Survival rates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In einer retrospektiven Analyse bei 7 Patienten wurden die Möglichkeiten und Grenzen der chirurgischen Therapie des Pseudomyxoma peritonei untersucht. Bei allen Patienten war die Appendix der Ursprungsort des Pseudomyxoma. Sämtliche Patienten wurden primär chirurgisch behandelt. Eine R0-Resektion war bei der Primäroperation in lediglich einem Fall mit allerdings benigner Histologie möglich, während bei den übrigen Patienten eine Tumorverkleinerung mit deutlicher Symptombesserung erzielt wurden konnte. Bei Nachweis eines Rezidivs wurden die Patienten einer Relaparotomie zugeführt, um erneut eine Tumorreduktion anzustreben. Die postoperative Morbidität auch nach Wiederholungseingriffen war gering. Die Überlebenszeiten lagen zwischen 2 und 20 Jahren, wobei besonders bei malignem Pseudomyxoma peritonei die additive Chemotherapie mit 5-Fluorouracil einen prognostischen Vorteil erbrachte. Die chirurgische Behandlung ist die Therapie der Wahl beim Pseudomyxoma peritonei, doch ist eine R0-Resektion nur in Ausnahmefällen möglich. Aufgrund der niedrigen Morbidität ist die Indikation zur Relaparotomie beim Rezidiv großzügig zu stellen. Im Vergleich zu anderen Malignomen des Gastrointestinaltrakts sind die Überlebenszeiten, möglicherweise auch durch die Anwendung einer additiven Chemotherapie, deutlich besser.
    Notes: Abstract In a retrospective study, the potential and limitations of surgical therapy of pseudomyxoma peritonei were studied in seven patients. In all patients the pseudomyxoma had originated from the appendix. All patients were primarily treated by surgery. An R0 resection at the first operation was possible in only one patient with a benign pseudomyxoma, while significant tumor debulking with improved symptoms was achieved in all other patients. If the tumor recurred relaparotomy was performed to obtain tumor reduction. The perioperative morbidity even after multiple relaparotomies was low. The survival rates ranged between 2 and 20 years with chemotherapy (5 - fluorouracil) which was of particular prognostic benefit in patients with malignant pseudomyxoma peritonei. Surgical therapy is the treatment of choice in pseudomyxoma peritonei, although an R0 resection is hardly feasible. Due to the low morbidity, relaparotomy in cases of tumor recurrence always appears to be indicated. In comparison to other gastrointestinal malignancies, the survival rates in pseudomyxoma peritonei, sometimes treated with additive chemotherapy, are superior.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 382 (1997), S. 349-358 
    ISSN: 1435-2451
    Keywords: Key words Merkel cell carcinoma ; Surgery ; Radiotherapy ; Chemotherapy ; Pathology ; Prognosis ; Therapeutic outcome ; Recurrence ; Schlüsselwörter Merkel-Zell-Karzinom ; Chirurgie ; Strahlentherapie ; Chemotherapie ; Pathologie ; Prognose ; Therapieergebnis ; Rezidiv
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der Merkel-Zell-Tumor ist ein maligner Hauttumor von neuroendokriner Differenzierung. Er befällt vorwiegend ältere Menschen. 78,6% der Patien-ten sind älter als 59 Jahre. Bis zum 60. Lebensjahr sind beide Geschlechter gleichermaßen betroffen. Ab dem 60. Lebensjahr überwiegt das weibliche Geschlecht. Der Tumor ist am häufigsten im Kopf-Hals-Bereich (50,8%) und an den Extremitäten (33,7%) lokalisiert und hat zum Zeitpunkt der Diagnosestellung eine durchschnittliche Größe von 29 mm. Bei 30% der Patienten liegen bereits bei der Erstvorstellung klinisch positive regionale Lymphknoten vor. Klinisch ist eine definitive Diagnosestellung nicht möglich. Eine lichtmikroskopisch geäußerte Verdachtsdiagnose muß durch immunzytochemische Untersuchungen bestätigt werden. Immunhistologisch werden die Differenzierungsmarker (Intermediärfilamente, speziell Neurofilamente und neuroendokrine Marker) zur Abgrenzung gegen andere Hauttumoren und undifferenzierte Karzinome eingesetzt. Als Primärtherapie wird vorwiegend eine Tumorexzision im Gesunden durchgeführt. Dabei scheint die Kombinationsbehandlung von Tumorexzision und konsekutiver Radiatio auch bei Patienten ohne Befall der regionalen Lymphknoten das Risiko eines Rezidivs oder einer Metastasierung zu senken. Bei Patienten mit ungünstigen prognostischen Indikatoren sollte immer auch eine Strahlenbehandlung durchgeführt werden. Die Ergänzung der chirurgische Primärtherapie (Exzision im Gesunden) durch eine radikale Lymphadenektomie sollte zumindest bei jüngeren Patienten erwogen werden. Eine regelmäßige, engmaschige, langjährige Tumornachsorge ist erforderlich. Treten Fernmetastasen auf, können durch eine Polychemotherapie nur kurzfristige Remissionen erreicht werden. Eine bereits eingetretene Lymphknotenmetastasierung, eine Tumorgröße über 2 cm sowie männliche Geschlechtszugehörigkeit stellen prognostisch ungünstige Indikatoren dar, welche bei der Therapieplanung berücksichtigt werden sollten.
    Notes: Abstract Merkel cell carcinoma is a rare malignant tumor of the skin with predominance in older patients; 78.6% of patients are older than 59 years. Female and male patients are equally involved in the age group below 60 years. After 60 years, Merkel cell carcinomas are more often observed in female patients. The tumor is most often located in the head and neck region (50.8%) or the extremities (33.7%). The average size is 29 mm at presentation. Clinically, only a presumptive diagnosis of Merkel cell carcinoma can be established. The definite diagnosis is made by histological, especially immunohistological methods (detection of intermediate filaments and neuroendocrine markers). The therapy of choice is local excision. Secondary therapy may be a combination of operation and radiation or chemotherapy. Since this combination may reduce the risk of recurrences it should be applied for patients with poor prognostic features. Especially in young patients, additional lymphadenectomy should be discussed. Clinical control is necessary. Distant metastases should be treated by chemotherapy. Bad prognostic features are: lymph node metastasis, size larger than 2 cm, male sex.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 382 (1997), S. 349-358 
    ISSN: 1435-2451
    Keywords: Merkel cell carcinoma ; Surgery ; Radiotherapy ; Chemotherapy ; Pathology ; Prognosis ; Therapeutic outcome ; Recurrence ; Merkel-Zell-Karzinom ; Chirurgie ; Strahlentherapie ; Chemotherapie ; Pathologie ; Prognose ; Therapieergebnis ; Rezidiv
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der Merkel-Zell-Tumor ist ein maligner Hauttumor von neuroendokriner Differenzierung. Er befällt vorwiegend ältere Menschen. 78,6% der Patienten sind älter als 59 Jahre. Bis zum 60. Lebensjahr sind beide Geschlechter gleichermaßen betroffen. Ab dem 60. Lebensjahr überwiegt das weibliche Geschlecht. Der Tumor ist am häufigsten im Kopf-Hals-Bereich (50,8%) und an den Extremitäten (33,7%) lokalisiert und hat zum Zeitpunkt der Diagnosestellung eine durchschnittliche Größe von 29 mm. Bei 30% der Patienten liegen bereits bei der Erstvorstellung klinisch positive regionale Lymphknoten vor. Klinisch ist eine definitive Diagnosestellung nicht möglich. Eine lichtmikroskopisch geäußerte Verdachtsdiagnose muß durch immunzytochemische Untersuchungen bestätigt werden. Immunhistologisch werden die Differenzierungsmarker (Intermediärfilamente, speziell Neurofilamente und neuroendokrine Marker) zur Abgrenzung gegen andere Hauttumoren und undifferenzierte Karzinome eingesetzt. Als Primärtherapie wird vorwiegend eine Tumorexzision im Gesunden durchgeführt. Dabei scheint die Kombinationsbehandlung von Tumorexzision und konsekutiver Radiatio auch bei Patienten ohne Befall der regionalen Lymphknoten das Risiko eines Rezidivs oder einer Metastasierung zu senken. Bei Patienten mit ungünstigen prognostischen Indikatoren sollte immer auch eine Strahlenbehandlung durchgeführt werden. Die Ergänzung der chirurgische Primärtherapie (Exzision im Gesunden) durch eine radikale Lymphadenektomie sollte zumindest bei jüngeren Patienten erwogen werden. Eine regelmäßige, engmaschige, langjährige Tumornachsorge ist erforderlich. Treten Fernmetastasen auf, können durch eine Polychemotherapie nur kurzfristige Remissionen erreicht werden. Eine bereits eingetretene Lymphknotenmetastasierung, eine Tumorgröße über 2 cm sowie männliche Geschlechtszugehörigkeit stellen prognostisch ungünstige Indikatoren dar, welche bei der Therapieplanung berücksichtigt werden sollten.
    Notes: Abstract Merkel cell carcinoma is a rare malignant tumor of the skin with predominance in older patients; 78.6% of patients are older than 59 years. Female and male patients are equally involved in the age group below 60 years. After 60 years, Merkel cell carcinomas are more often observed in female patients. The tumor is most often located in the head and neck region (50.8%) or the extremities (33.7%). The average size is 29 mm at presentation. Clinically, only a presumptive diagnosis of Merkel cell carcinoma can be established. The definite diagnosis is made by histological, especially immunohistological methods (detection of intermediate filaments and neuroendocrine markers). The therapy of choice is local excision. Secondary therapy may be a combination of operation and radiation or chemotherapy. Since this combination may reduce the risk of recurrences it should be applied for patients with poor prognostic features. Especially in young patients, additional lymphadenectomy should be discussed. Clinical control is necessary. Distant metastases should be treated by chemotherapy. Bad prognostic features are: lymph node metastasis, size larger than 2 cm, male sex.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 248 (1991), S. 236-241 
    ISSN: 1434-4726
    Keywords: Squamous cell carcinoma ; Chemotherapy ; Histopathological and immunohistochemical study ; Monoclonal antibodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Forty-six patients with advanced head and neck squamous cell carcinomas received two courses of chemotherapy with cisplatinum and bleomycin before undergoing cancer surgery. After surgery, histological serial sections of the resection specimens were examined. Biopsies from each resected specimen were shock-frozen for immunohistochemical examinations using the monoclonal antibodies Ki-67 and RPN-511, which are associated with cell proliferation. In no case did the morphologic analysis demonstrate complete tumor regression after chemotherapy. Thirty-seven patients showed partial tumor regressions histologically, as seen by tumor shrinkage of more than 50%. Nine of the specimens showed only minor regressions, with shrinkage less than 50%. The immunostaining of the frozen sections revealed in all cases the expressions of the Ki-67 nuclear antigen and the presence of specific transferrin (RPN-511) receptors in the proliferative compartments of the carcinomas.
    Type of Medium: Electronic Resource
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