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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 79 (1975), S. 1859-1863 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 613 (1990), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. To investigate the mechanisms of the peritoneal damage induced by continuous hyperthermic peritoneal perfusion (CHPP), protein and fluid loss during and after CHPP and continuous normothermic peritoneal perfusion (CNPP) was studied. Sixteen patients with advanced gastric cancer underwent peritoneal perfusion therapy with saline solution containing 150 to 300 mg cisplatin and 30 to 60 mg mitomycin C for 60 minutes. The temperature in Douglas' pouch was maintained at 42.0°C in the CHPP group (n= 9) and 37.0°C in the CNPP group (n= 7) during perfusion. No statistical differences were found in patients' characteristics between the groups except the maximum temperature in Douglas' pouch during perfusion (41.6°± 0.4°C and 37.6°± 0.4°C in CHPP and CNPP groups, respectively, p 〈 0.05). The amount of protein lost into the perfusate was 0.35 ± 0.22 g/kg body weight in the CHPP group and 0.37 ± 0.19 g/kg in the CNPP group, showing no significant difference. On the day of surgery, there was no significant difference in the amount of protein and fluid lost through the abdominal drains between the CHPP group (27.9 ± 24.6 mg/kg/hr and 0.94 ± 0.63 ml/kg/hr, respectively) and the CNPP group (25.9 ± 8.6 mg/kg/hr and 1.03 ± 0.31 ml/kg/hr, respectively). We could not find any significant differences in postoperative protein and fluid loss between the groups on the following 3 days either. We conclude that the peritoneal damage by CHPP is not caused by the hyperthermia but by the peritoneal perfusion with saline solution containing anticancer drugs.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La perfusion péritonéale continue hyperthermique (PPCH) avec des agents anticancéreux comme le mitomycine C et la cis-platine avec sérum physiologique chauffé a été instaurée lorsqu'une carcinose d'origine gastrique a été trouvée. Les effets de la PCH ont été évalués chez 16 patients lors d'un second-look (SL). Cette étude concerne 41 patients avec carcinose péritonéale sans métastase hépatique observés au cours des 6 dernières années. La survie globale médiane était de 437 jours (extrêmes 28 à 1925 jours): le taux de survie a 3 ans était de 28.5%. Les lésions avaient diminué de façon notable chez 7 (50%) de 14 patients. L'ascite a disparu dans 7 des 9 cas. Une survie à long terme (3 ans) a été notée dans 4 cas. Les effets secondaires ont été une insuffisance rénale dans 2 cas (5%), une leucopénie dans 2 cas (5%) et une perforation de l'intestin grêle dans un cas (2%). Les résultats suggèrent que la PPCH est efficace dans le traitement du cancer gastrique avec dissémination péritonéale.
    Abstract: Resumen La perfusión hipertérmica continua (PHTC) con agentes anticancerosos (mitocina G y cisplatino) y solutión salina fue realizada en pacientes con cáncer gástrico con diseminación peritoneal después de resección de la lesión primaria, y el efecto de PHTC fue determinado mediante reexploración (operación de “second look”, OSL). La población de pacientes está constituída por 41 casos de cáncer gástrico con diseminación peritoneal pero sin metástasis hepáticas, tratdos en el curso de los últimos 6 años. La sobrevida media global fue de 437 dias (rango 28 a 1925 días) desde la PHTC hasta la muerte y la tasa de sobrevida a 3 años fue 28.5%. La OSL reveló una notoria disminución de la diseminación peritoneal en 7 (50%) de 14 casos y desaparición de la ascites después de sólo un ciclo de PHTC en 7 de 9 casos con ascitis. Sobrevida de 3 años ocurrió en 4 casos. Los efectos colaterales fueron insuficiencia renal en 2 casos (5%), leucopenia en 2 casos (5%) y perforación del intestino delgado en 1 caso (2%). Los anteriores resultados sugieren que la PHTC es eficaz en el tratamiento del cáncer gástrico con diseminación peritoneal.
    Notes: Abstract Continuous hyperthermic peritoneal perfusion (CHPP) with anticancer agents (mitomycin C and cisplatin) in warm saline was performed in patients with peritoneal dissemination of gastric cancer following resection of the primary lesion. The effect of CHPP was examined by a second-look operation. This study includes 41 cases of gastric cancer with peritoneal dissemination but without liver metastasis treated during the past 6 years. The overall median survival was 14.6 months to 64.2 months from CHPP to death and the 3-year survival rate was 28.5%. Second look surgery revealed a remarkable diminution in the degree of peritoneal dissemination in 7 (50%) of 14 patients with disappearance of ascites after only one course of CHPP in 7 (77.8%) of 9 patients. Long-term 3 year-survival was noted in 4 (9.8%) patients on CHPP. Side effects were renal insufficiency in 2 (5%) patients, leukopenia in 2 (5%) patients, and perforation of the small intestine in 1 (2%) patient. These results suggest the effectiveness of CHPP in the treatment of gastric cancer with peritoneal dissemination.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Cinquante-cinq cas de cancer gastrique avancé, à potentiel très malin (stade IV à l'imagerie préopératoire), ont été traités par une chimiothérapie PMUE comprenant une combinaison de CDDP, 75 mg/m2, MMC, 10 mg/Kg poids corporel, d'etopocide, 150 mg/Kg poids corporel et d'UFT, 400 mg/jour. Le CDDP et le MMC ont été donnés par voie intraveineuse à Jl, suivis d'etoposide, 50 mg/jour aux jours 3, 4 et 5. Tous les patients avaient des lésions qui ont pu être évaluées par la tomodensitométrie avant et après le traitement. Ces patients ont été randomisés en deux groupes: 29 ont eu une chimiothérapie néoadjuvante (CNA) par le PMUE en préopératoire, alors que les 26 autres ont d'abord été opérés, et ensuite ont reçu une chimiothérapie PMUE (groupe contrôle). Les caractéristiques des deux groupes ne différaient pas de façon significative. Le taux de réponse était plus haut dans le groupe CNA par rapport au groupe contrôle (62% contre 35%). Le taux de résecabilité était respectivement, de 79 et 88% dans les deux groupes. Le taux de cas potentiellement curables, cependant, était plus élevé dans le groupe CNA par rapport au groupe contrôle (38% contre 15%). Dans les cas de cancer gastrique non réséqués, le pronostic était extrêmement mauvais, quel que soit le groupe. Dans les cancers réséqués, la survie était significativement plus élevée dans le groupe CNA comparé au groupe contrôle. Ces résultats indiquent que chez les patients ayant un cancer gastrique avancé à potentiel très malin, une chimiothérapie néoadjuvante (d'emblée), suivie de chirurgie, peut être le meilleur choix thérapeutique.
    Abstract: Resumen Cincuenta y cinco casos de cáncer gástrico avanzado, en los cuales se había confirmado el Estado IV mediante imágenes diagnósticas preoperatorias, recibieron quimioterapia PMVE con el uso combinado de cisplatino (CDDP) 75 mg/m2, MMC 10 mg/cuerpo, Ectoposide 150 mg/cuerpo y VHF 400 mg/día. El CDDP y el MMC fueron administrados por vía intravenosa en el primer día, seguidos de Ectoposide 50 mg/día en los días 3, 4 y 5. Todos los pacientes exhibían lesiones medibles, las cuales fueron valoradas por escanografía computadorizada antes y después del tratamiento. Los pacientes fueron ubicados al azar en dos grupos; 29 quedaron en el grupo de la quimioterapia neoadyuvante (QNA) en el cual la quimioterapia PMVE fue practicada preoperatoriamente, y los 26 pacientes restantes fueron sometidos primero a operación y luego a quimioterapia PMVE, constituyendose en el grupo de control. Los antecedentes médicos no eran significativamente diferentes en los dos grupos. La respuesta fue mayor en el grupo de QNA en comparación con el grupo control (62% vs 35%). La tasa de resecabilidad fue de 79% y 88% en el grupo QNA y en el grupo de control, respectivamente. Sin embargo, la rata de casos potencialmente curables fue más alta en el grupo de QNA, en comparación con el grupo control (38% vs 15%). En los casos no resecados, sin embargo, la tasa de sobrevida fue significativamente superior en el grupo de QNA en comparación con el grupo control. Tales resulados pueden significar que en pacientes con cáncer gástrico de alto grado y en estado avanzado se debe considerar primero la quimioterapia como paso inicial (quimioterapia neodyuvante), y luego la cirugía.
    Notes: Abstract Fifty-five patients with high-grade advanced gastric cancer in whom the presence of stage IV was confirmed by preoperative diagnostic imaging were treated with PMUE therapy by a combined use of cisplatin (CDDP) 75 mg/m2, mitomycin C (MMC) 10 mg/body, etoposide 150 mg/body, and UFT (a combination of 1-(2-tetrahydrofuryl)-5-fluorouracil and uracil in a molar ratio of 1∶4) 400 mg/day. CDDP and MMC was administered intravenously on the first day, followed by etoposide 50 mg/day on the 3rd, 4th, and 5th days. All the patients had measurable lesions that were evaluated by computed tomography scanning before and after the treatments. These patients were allocated randomly to two groups. Of these cases, 29 belonged to the neoadjuvant chemotherapy (NAC) group to whom PMUE therapy was given preoperatively; the remaining 26 patients underwent operation first and received PMUE thereafter (control group). Background factors did not differ significantly between the two groups. The response rate was higher in the NAC group than in the control group (62% in the former versus 35% in the latter). The resectability rates were 79% and 88% in the NAC and control groups, respectively. However, the rate of potentially curable cases was higher in the NAC group than in the control group (38% in the former versus 15% in the latter). Among the nonresection cases, the prognosis was highly unfavorable in both groups. In the resection cases, however, the survival rate was significantly better in the NAC group than in the control group. These results may indicate that in patients with high-grade, advanced gastric cancer initial chemotherapy (neoadjuvant chemotherapy) and then surgery should be considered.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Nous mettons en place une perfusion intrapéritonéale hyper (PPHC) ou isothermique continue (PPNC), associée à une chimiothérapie combinée (cisplatine (CDDP) à la posologie de 300 mg/Kg et mitomycine C (MMC) à la posologie de 30 mg/Kg) dans le but de prévenir les récidives péritonéales après chirurgie pour cancer gastrique. Dans une étude randomisée, 22 patients ont été traités par perfusions péritonéale avec 10 liters de sérum physiologique chauffé à 41–42°C (PPHC), 18 ont été traités avec du sérum à 37°C (PPNC) et 18 ont été opérés de leur cancer gastrique sans perfusion postopératoire (groupe contrôle (22%)). Les survies à 1, 2 et 3 ans étaient de 95, 89 et 68%, respectivement dans le groupe PPHC, de 81, 75 et 51% dans le groupe PPNC et de 43, 23 et 23% dans le groupe contrôle. Les trois courbes de survie différaient de façon significative (logrank p〈0.01). Ces différences montrent que non seulement la perfusion intrapéritonéale associée à la chimiothérapie mais aussi l'hyperthermie intrapéritonéale sont efficaces pour prévenir la récidive péritonéale. après résection gastrique pour cancer. Les concentrations maximales globales et isolées de CDDP étaient de 12.2 et de 10.1 μg/ml à la fin de la perfusion. Les concentrations plasmatiques maximales de MMC globales et isolées étaient de 1.00 et de 0.05 μg/ml., respectivement. Ces résultats cliniques favorables démontrent que les concentrations obtenues ainsi ne sont pas nocives.
    Abstract: Resumen En pacientes sometidos a cirugía por cáncer gástrico hemos realizado perfusión peritoneal hipertérmica continua (PPHC) o perfusión peritoneal normotérmica continua (PPNC) combinada con cisplatino (CCDP) en dosis de 300 mg/cuerpo y mitomicina C (MMC) en dosis de 30 mg/cuerpo con miras a prevenir la recurrencia peritoneal. Veintidós pacientes fueron tratados con perfusión de alrededor de 10 litros de solución salina calentada a 41–42°C (grupo PPHC); 18 pacientes fueron tratados con solución salina calentada a 37–38°C (grupo PPNC); y 18 pacientes fueron sometidos a cirugía gástrica solamente, sin perfusión, los cuales constituyeron el grupo de control. El estudio fue randomizado. Las muertes por recurrencias peritoneales fueron dos (9%) en el grupo PPHC, cuatro (22%) en el grupo PPNC y cuatro (22%) en el grupo control. Las tasas de sobrevida a uno, dos y tres años fueron 95%, 89% y 68% en el grupo PPHC; 81%, 75% y 51% en el grupo PPNC; y 43%, 23% y 23% en grupo control, respectivamente. Se encontró una diferencia significativa en las tres curvas de sobrevida en la prueba de log-rank (p〈0.01). La significativa diferencia hallada entre las tres curvas de sobrevida demuestran que, no sólo la perfusión intraperitoneal combinada con quimioterapia (PPNC) sino también la hipertermia intraperitoneal (PPHC), son procedimientos efectivos para la prevención de la recurrencia peritoneal. Las concentraciones máximas del CCDP total y libre en el líquido de perfusión en el régimen de 300 mg fue 12.2 y 10.1 μg/ml al final de la perfusión. Las máximas concentraciones plasmáticas de CDDP total y libre fueron 2.1 y 1.0 μg/ml al final de la perfusión. Las concentraciones máximas de MMC en el líquido de perfusión y en el plasma en regímenes por debajo de 30 mg fueron 1.0 y 0.05 μg/ml. Tales resultados demuestran concentraciones intraperitoneales citotóxicas pero sistémicamente seguras.
    Notes: Abstract We performed continuous hyperthermic peritoneal perfusion (CHPP) or continuous normothermic peritoneal perfusion (CNPP) combined with cisplatin (CDDP) 300 mg/kg and mitomycin C (MMC) 30 mg/kg in an attempt to prevent peritoneal recurrence after surgery for gastric cancer. Twenty-two patients were treated with perfusion using about 10 liters of saline heated to 41° to 42°C (CHPP group); 18 patients were treated with saline heated to 37° to 38°C (CNPP group); and 18 patients underwent only gastric surgery without perfusion (control group) in a randomized control study. There were two deaths (9%) due to peritoneal recurrence in the CHPP group, four (22%) in the CNPP group, and four (22%) in the control group. The 1-, 2-, and 3-year survival rates were 95%, 89%, and 68%, in the CHPP group; 81%, 75%, and 51%, in the CNPP group; and 43%, 23%, and 23%, in the control group, respectively. There was a significant difference between the three survival curves by the log-rank test (p〈0.01). This difference showed that CNPP and CHPP are both effective procedures for preventing peritoneal recurrence. The maximum concentrations in the perfusate of total and free CDDP with 300 mg administration were 12.2 and 10.1 μg/ml, respectively, at the end of the perfusion, and the maximum concentrations of total and free CDDP in plasma were 2.1 and 1.0 μg/ml, respectively. The maximum concentrations of MMC in perfusate and plasma with 30 mg administration were 1.00 and 0.05 μg/ml, respectively, which are intraperitoneally cytotoxic but systemically safe concentrations.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1436-2813
    Keywords: advanced gastric cancer ; cisplatin ; intrahepatic chemotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The influence of operative treatment and chemotherapy on the prognosis in 93 gastric cancer patients with liver metastasis was studied. Chemotherapy included the systemic administration of mitomycin C (MMC) (39 patients), an intra-hepatoarterial infusion of MMC (MMC IAC group) (19 patients) and an intra-hepatoarterial infusion of MMC and cisplatin (CDDP) (MMC + CDDP IAC group) (24 patients). Either MMC or MMC and CDDP were given in 1–4 courses every 3–4 weeks from the first one to two post operative weeks. The response rate was 4 per cent (1/23), 29 per cent (5/17) and 73 per cent (17/23) for MMC systemic administration, MMC IAC and MMC + CDDP IAC, respectively, with a significantly high rate of effectiveness for the MMC + CDDP IAC. In addition, regarding the median survival period, the MMC + CDDP IAC group showed 11.8 months, as compared with 2.9 months for other chemotherapeutic treatments, indicating a good prognosis regardless of any possible resection of the primary lesion. A Cox proportional hazard model revealed the treatment by MMC + CDDP IAC alone to be a significant independent factor. These results indicated that MMC + CDDP intra-arterial chemotherapy is an effective approach to gastric cancer with liver metastasis.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-1335
    Keywords: Bile ; Pancreatic juice ; Duodenogastric reflux ; Stomach neoplasms ; Adenocarcinoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Male Wistar rats were subjected to one of three types of operative reflux procedure that allowed part or all of the duodenal contents to flow back into the stomach through the pylorus, thus producing models of bile reflux alone, pancreaticoduodenal reflux alone, and combined reflux. All surviving animals were killed 50 weeks after surgery and the development of gastric cancer was assessed. No cancer was seen in 16 animals with pancreaticoduodenal reflux or in 32 control animals with gastrotomy, whereas 2/8 animals with bile reflux and 11/29 animals with combined reflux had gastric carcinoma. Compared with the control group, the incidence of carcinoma in animals with bile or combined reflux was significantly higher (P〈0.05 andP〈0.01 respectively). All carcinomas developed in the antral area near the pylorus. Adenomas were observed only in the groups of animals developing carcinoma and occurred in the same region of the stomach. These results suggest that bile, and not pancreaticoduodenal secretions, is the component of the duodenal contents responsible for the development of gastric carcinoma.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 27 (1982), S. 4085-4092 
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The effect of large dosage irradiation in vacuo on polyethylene was investigated by the method of double irradiation. Polyethylene was first irradiated with γ-rays to a dosage of several hundred Mrad in vacuo at 298°K. The formed radicals were destoryed, and the polymer, changed chemically and morphologically, was irradiated again in vacuo at 77°K with a dose of 12.7 Mrad. The thermal decay of radicals produced in polyethylene by the second irradiation was investigated. The results show that many double bonds are formed in the sample irradiated to several hundred Mrad on the first irradiation. Alkyl radicals produced by the second irradiation react with these double bonds yielded by the first irradiation to form a large number of allyl radicals. These allyl radicals are much more stable than alkyl radicals radicals in vacuo at 298°K. In a sample not exposed to the first irradiation, almost all radicals formed by the second irradiation decay to form stable products. Crosslinks formed by a large amount of irradiation make the polyethylene matrix more rigid. This rigidity slows down the radical decay. These results suggest that the rate of radical accumulation in polyethylene irradiated in vacuo increases as the dosage increases.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 27 (1982), S. 2475-2482 
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: In low-density polyethylene containing the additive propylfluorancene, radiation energy received by polyethylene is transferred to propylfluorancence, and the production of radicals at 77 K in polyethylene is suppressed. Propylfluoranncene also increases the rate of the decay of radicals of polyethylene at room temperature. The depression of radical production and accelaration of radical decay at room temperature results in the depression of gas production and crosslinks at room temperature in low-density polyethylene containing propylfluorancene. Similar results were obtained in ethylen-propylene copolymer containing the same additive.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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