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  • 1
    ISSN: 1436-2813
    Keywords: transplantation ; pancreatectomy ; pancreatitis ; insulin ; glucagon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A total pancreatectomy was performed in a 39-year-old man diabetic with diffuse calcification of the whole pancreas, a pseudocyst and intrapancreatic bile duct obstruction. The body of the excised pancreas was immediately transplanted into the left groin. The postoperative responses of plasma glucagon and insulin were not impaired compared with their preoperative responses. The patient was relieved of unremitting pain and is doing well six months after this operation.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1436-2813
    Keywords: pancreatic cystadenocarcinoma ; gastric varices ; splenic vein obstruction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a 70-year-old woman with gastric varices due to splenic vein obstruction by a cystadenocarcinoma of the caudal pancreas. Most of the pancreatic cancer had already extensively progressed and was unresectable when an obstruction of the splenic vein was also discovered. Two contributing factors are thought to have enabled us to perform a curative resection in this cases: (1) the gastric varices were detected by chance in a mass survey, (2) the cancer was not so advanced as to be unresectable.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1436-2813
    Keywords: insulinoma ; blood sugar monitoring ; insulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract With serial measurement of blood sugar levels during surgery in three patients with solitary insulinoma, we confirmed the location, then later, the complete elimination of the insulin-secreting tumor. Following virgorous massage of the tumor, blood sugar levels decreased while the levels progressively increased within 20 min following removal of the tumor. Subsequent measurement of simultaneous plasma insulin levels provided further confirmation. Plasma levels of insulin increased in accordance with massage of the tumor. Prior to removal of the tumor, the levels progressively decreased to less than the preoperative levels. For success in detecting slight changes in blood sugar levels secondary to increase or decrease of insulin secretion during surgery for insulinoma, (1) controlled infusion of glucose to keep blood sugar levels around 80 mg/dl and (2) frequent rapid determination of blood sugar levels are considered to be important.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Bile duct cancers are still difficult to cure, and even if curatively resected locoregional recurrences are frequent. Biologic proliferative activity of the cancer may influence postoperative recurrence and the prognosis. A retrospective study was performed with the medical records of 44 consecutive patients who underwent surgery for histologically extrahepatic bile duct cancer (stage 3 or 4) at Osaka Police Hospital during the period 1980 to 1992. Univariate analysis suggested that the stage according to the UICC classification, curability, DNA ploidy, proliferating cell nuclear antigen (PCNA), S-phase and G2M-phase fractions, and histologic differentiation were significant prognostic factors. The Cox’s proportional hazard model indicated that PCNA and histologic differentiation were independent prognostic factors for crude and cause-specific survival. When PCNA was omitted from the analysis, DNA ploidy and histologic differentiation were independent prognostic factors for both crude and cause-specific survival. These results suggested that proliferative activity influenced the postoperative prognosis of extrahepatic bile duct cancer.
    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 Le taux de survie à long terme après pancréatectomie pour cancer augmente. Cette étude a été menée chez des patients ayant un cancer périampullaire pour définir les changements des fonctions pancréatiques endocrines avant et après la résection de la tête du pancréas. Les fonctions pancréatiques cellulaires A et b ont été déterminées grâce aux dosages de glucagon et d'insuline plasmatiques suite à une perfusion d'arginine. La réponse maximale et l'augmentation de glucagon et d'insuline plasmatiques ont été calculées pour chaque patient. En regard de ces paramètres, il n'y avait pas de différence significative entre les patients avant l'opération (n=36) et les sujects témoins (n=18). Après duodénopancréatectomie (durée moyenne, 6.4 semaines), chaque paramètre était réduit de façon significative par rapport aux valeurs préopératoires, et à celles des témoins. Parmi les survivants à long terme (moyenne, 20.1 mois après l'intervention; n=12), il n'y avait pas de différence dans ces paramètres avant et après F opération, mais ces valeurs étaient toujours inférieures de façon significative à celles de la période préopératoire ou à celles des sujets normaux témoins. Nous concluons que les fonctions cellulaires A et B sont conservées pendant longtemps après duodénopancréatectomie céphalique pour cancer périampullaire.
    Abstract: Resumen El número de sobrevivientes a largo plazo después de pancreatectomía por cáncer está en aumento, pero poco se conoce acerca de la función pancreática endocrina y del estado metabólico tardío en estos pacientes. El presente estudio fue ejecutado en pacientes con cáncer periampular con el propósito de elucidar los cambios seriados que se producen en la función pancreática endocrina antes y después de la resección de la cabeza del páncreas. La función de las células A y B fue determinada mediante la respuesta del glucagón y la insulina plasmáticos a la infusión de arginina. Para lograr comparaciones seriadas, se hizo el cálculo de la respuesta máxima y del incremento integrado del glucagón y de la insulina en cada paciente. No se hallaron diferencias significativas en estos parámetros comparando la medición preoperatoria en 36 pacientes con la obtenida en 18 sujetos normales que actuaron como controles. En el período temprano después de la pancreatectomía (promedio, 6.4 semanas), cada parámetra apareció significativamente disminuído en relación a su correspondiente valor preoperatorio, y también en relación a los controles normales. En 12 sobrevivientes a largo plazo (promedio, 20.1 meses después de la cirugía) entre estos 36 pacientes con cáncer periampular, tales parámetros no exhibieron cambios significativos en comparación con los valores postoperatorios tempranos y fueron aún menos significativos al compararlos con los valores preoperatorios o los valores controles normales. Nuestra conclusión es que la función pancreática en cuanto a las células A y B se mantiene preservada por un largo período de tiempo después de pancreatoduodenectomía en pacientes con cáncer periampular.
    Notes: Abstract The number of long-term survivors of pancreatectomy for cancer is increasing. This study was conducted in patients with periampullary cancer to elucidate the serial change in the pancreatic endocrine functions before and after resection of the head of the pancreas. The pancreatic A and B cell functions were determined by the responses of plasma glucagon and insulin to arginine infusion. For serial comparison, the maximum response and integrated increment of plasma glucagon and insulin were calculated in each patient. There were no significant differences in these parameters between the patients (n=36) before the operation and normal controls (n=18). Early after pancreatoduodenectomy (mean, 6.4 weeks), each parameter was significantly less than its corresponding preoperative value and also less than the value in the normal controls. In the long-term survivors (mean, 20.1 months after the surgery; n=12) among these 36 patients, these parameters showed no significant changes compared with the early postoperative values and were still significantly less than both the preoperative values and the normal control values. We, thus, conclude that pancreatic A and B cell functions are preserved long-term after pancreatoduodenectomy in patients with periampullary cancer.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 240 (1985), S. 277-280 
    ISSN: 1432-0878
    Keywords: Adrenal vasculature ; Portal system ; Microspheres ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The intra-glandular vascular arrangement in the adrenal has been studied using non-radioactive microspheres injected by three different routes: in-vivo injection into the left ventricle under pentobarbital anesthesia, postmortem orthograde, and postmortem retrograde injection. The doses of microspheres were 105 (average size 24.7 μm), 106 (15.8 μm) and 107 (9.9 μm). The entrapment rate of microspheres by the medulla as compared with the whole gland was measured in the serially sectioned tissue (section thickness 60 μm). The entrapment rates of 25-μm microspheres differed between the orthograde and retrograde injections, while the entrapment rates for 15-μm microspheres were essentially similar irrespective of the route of injection. Our results support the conclusion from previous microangiographic studies that the adrenal cortex and medulla are supplied by different arteries but have a common venous outflow, and that direct communication between cortical and medullary sinusoids is not likely. The medullary blood flow per gram tissue weight is estimated to be larger than cortical blood flow.
    Type of Medium: Electronic Resource
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