Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Surgery today 21 (1991), S. 561-565 
    ISSN: 1436-2813
    Keywords: hepatic resection ; coagulopathy ; fibrinolysis ; anhepatic state
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Ex situ hepatic surgery, in which a diseased liver is resected from outside the body, was first reported in 1988. This study investigates the hemostatic changes occurring during such surgery in two cases. During the anhepatic period of more than 5 hours, veno-venous bypass without heparin was performed. The tests included platelet count, prothrombin activity (PT), partial thromboplastin time (PTT), fibrinogen (Fbg), factor II (F.II), factor V (F.V.), and thromboelastography (TEG). Three to 4 hours after entering the anhepatic phase, marked fibrinolysis and a fall in the values of PT, Fbg and F.V were observed. Every parameter temporarily deteriorated immediately after revascularization of the graft, however, all returned to almost normal values within 1–2 hours after hepatic reperfusion except for F.V and platelets. In conclusion, the coagulopathy duringex situ hepatic surgery is caused by the marked fibrinolysis and depletion of hemostatic factors which develop 3–4 hours after the onset of the anhepatic phase.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Surgery today 22 (1992), S. 187-190 
    ISSN: 1436-2813
    Keywords: hepatocellular carcinoma ; hepatobiliary malignancy liver transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Unfavourable results and shortage of donor organs have led to restricted indication of liver transplantation for irresectable hepatocellular carcinoma. This review analyses the current state of experience in order to work out criteria for a more differentiated multimodal treatment including liver transplantation. New techniques of extended liver resection under hypothermic perfusion have to be considered in some conventionally irresectable tumors. Split-liver transplantation is a donor organ saving option which preserves the chance of transplantation in individual tumor patients without disadvantage for patients with benign diseases.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1436-2813
    Keywords: thyroid carcinoma ; multiple endocrine neoplasia ; lymphadenectomy ; neck dissection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Lymph node metastases have been proven to be the main prognostic factor in medullary thyroid carcinoma (MTC). This retrospective study was undertaken to evaluate the efficiency of two surgical techniques of regional lymph node dissection with regard to the normalization of pentagastrin-stimulated serum calcitonin level and patient survival: selective lymphadenectomy, i.e., the excision of macroscopically or microscopically involved lymph nodes, versus a systematic lymphadenectomy performed by the new technique of a compartment-oriented microdissection. From 1970 to 1990, 82 patients with sporadic (n=57) and hereditary (n=25) MTC underwent a total of 142 operations including 63 selective lymphadenectomies and, since 1986, 35 systematic lymphadenectomies. The study revealed that in node-positive MTC the rate of interventions with a postoperative normalization of pentagastrin-stimulated serum calcitonin was higher after systematic lymphadenectomy (29.2%) than after selective lymphadenectomy (8.5%) (P〈0.01). The rate of patients undergoing repeat surgery due to a recurrence of MTC was 48% after selective lymphadenectomy and 10% after systematic lymphadenectomy. Survival was significantly better for patients after systematic versus selective lymphadenectomy (P〈0.005). This study thus emphasizes that systematic lymphadenectomy, using the technique of a compartment-oriented microdissection of cervicomediastinal lymph nodes, represents the preferred surgical treatment as well as the optimum technique in primary as well as secondary node-positive MTC.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1436-2813
    Keywords: liver transplantation ; Cyclosporin A
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Liver transplantation has gained increasing interest. While liver grafting for tumor is successful over prolonged periods only in its early course, liver grafting for end-stage cirrhosis may lead to a long survival. Liver grafting in children is the most successful indication; in adults the results depend largely on timing and indication. Actual developments are mainly seen in the following points: a. Improvement in immunosuppression by use of Cyclosporin A. The resorption and metabolism of the drug, in relation to liver function, have to be carefully observed. b. The tendency to perform liver grafting electively instead of in emergency. c. Improvement in operative management, particularly the use of veno-venous bypass. d. The best possible anaesthesiological and intensive care management for the patients. It can be expected, that these developments will enable continuous improvement of results, particularly in an elective situation. One hundred and forty liver grafts have been done in our institution and the results are discussed herein. Progress in liver transplantation is marked by steadily growing numbers of liver grafts performed, and of centers performing grafts, as well as by improved success rates and the recommendation of the U.S. National Institutes of Health, based on discussions at a liver transplantation consent meeting, held in June 1983. This interest is also reflected in discussions among the medical and non-medical community. The first section of this paper will deal with the present state and results of liver grafting particularly, at our own institution and some actual developments in this field will be discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    World journal of surgery 18 (1994), S. 233-239 
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La gamme thérapeutique de l'hémorragie par rupture de varices oesophagiennes comprend des mesures les unes conservatrices et les autres chirurgicales. Avant d'envisager la transplantation comme un moyen potentiellement curateur de l'étiologie sousjacente, les interventions visant la décompression du système portocave restent l'essentiel de l'arsenal thérapeutique palliatif. Notre expérience dans le traitement des maladies hépatiques avancées et de l'hypertension portale sur ces 20 dernières années comporte 803 transplantations hépatiques et 201 anastomoses portocaves, mettant l'accent sur nos objectifs de traitement primaire des maladies hépatiques Les résultats des anastomoses sont favorables lorsqui'il s'agit d'anastomose de décompression sélective, réalisée électivement, chez les patients du stade Child A. Après transplantation, hépatique, l'état clinique du patient, sa fonction hépatique, et la survenue de complications extrahépatiques ont fortement influencé l'évolution à court et à long terme. Avec l'expérience le risque supplémentaire encouru par une chirurgie de décompression antérieure est réduite. D'après notre expérience et la littérature, il existe des arguments en faveur des deux formes de traitement, qui, en fait, sont complémentaires. Les deux modalités devraient être idéalement disponibles dans le même centre traitant des patients ayant une maladie susceptible d'évoluer soit vers une insuffisance hépatique ou une hypertension portale. La sélection d'un ou de l'autre des procédés dépend de l'étiologie, du stade de la maladie, et du moment évolutif où la thérapeutique se discute. Les anastomoses portocaves sont indiquées plutôt chez le patient stable ayant un risque d'hémorragie après sclérothérapie, en cas de contreindication ou en attendant la transplantation. Le rôle de la transplantation est bien établi chez le patient ayant une maladie hépatique évolutive ou terminale, autrement incurable.
    Abstract: Resumen El manejo de la hemorragia por várices esofágicas va desde una modalidad conservadora hasta la intervención quirúrgica. Antes de la introducción del trasplante de hígado como una forma de terapia potencialmente curativa de la causa etiológica primaria, las operaciones de descompresión porta-sistémicas eran la modalidad de preferencia entre los procedimientos quirúrgicos fundamentalmente paliativos. Nuestra propia experiencia con la cirugía en pacientes con enfermedad hepática avanzada e hipertensión portal en más de 20 años, incluye 803 trasplantes hepáticos y 201 “shunts’ porta-sistémicos. Los resultados de los “shunts” fueron favorables en pacientes Child A, cuando fueron realizados en forma electiva y fueron del tipo de la descompresión selectiva. Luego de trasplante hepático, el estado clínico, del paciente, incluyendo la función hepática y las complicaciones extrahepáticas, demostró tener una fuerte influencia sobre el resultado postoperatorio, con excelente posibilidad de sobrevida a largo plazo. Se ha logrado reducir el riesgo adicional que representa un “shunt” realizado con anterioridad al trasplante. Nuestra experiencia y los informes de otros autores constituyen suficiente y razonable argumentación en favor de la cirugía derivativa (“shunts”) y trasplante. En vez de plantear controversia, se considera que estas dos modalidades terapéuticas son complementarias.
    Notes: Abstract The management of esophageal variceal hemorrhage ranges from conservative to surgical modalities. Before introduction of liver transplantation as a potentially curative therapy of the underlying etiology, decompressive portosystemic shunt operations have been the mainstay of mostly palliative procedures Our own experience with surgery for advanced hepatic disease and portal hypertension over 20 years includes 803 liver transplantations and 201 portosystemic shunts, emphasizing our primary objective of treatment. The results after shunt surgery were favorable in Child class A candidates when performed electively and with selective decompression. After liver replacement the clinical status of the patient, including hepatic function and extrahepatic complications, had a strong influence on postoperative outcome, with the chance of excellent long-term survival. The additional risk of previous shunt surgery for subsequent transplantation could be reduced over time. Based on this experience and reports from others there are enough reasonable arguments for shunt and transplantation. Instead of the choice being controversial, the two forms of therapy should supplement each other and be available in the same center that specializes in the treatment of patients with diseases that eventually lead to liver failure and portal hypertension Selection of either approach must depend on etiology, stage of the disease, and proper timing. Shunt procedures may be indicated in stable patients with the risk of bleeding after sclerotherapy failure, in those with contraindications to transplantation, or as a bridge to transplantation. The role of liver transplantation has been clearly established in patients with progressive or endstage (otherwise intractable) hepatobiliary disease.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The differential diagnosis for hemangioma, focal nodular hyperplasia (FNH), and hepatocellular adenoma may be difficult. Reliable diagnosis is mandatory for the decision of whether to apply surgery or observation. Experience with long-term observation in nonoperated patients with hemangioma and FNH is limited. A group of 437 patients from a single institution were analyzed with regard to a diagnostic algorithm, the indications for surgery, and observation. There were 238 hemangiomas, 150 cases of FNH, 44 adenomas, and 5 mixed tumors. Of the 437 patients, 173 underwent surgery; 103 with hemangioma and 54 with FNH were observed at our own institution, whereas 117 patients underwent follow-up elsewhere or were lost. Among the operated patients with confirmed histology, a good diagnostic yield was found for a combination of ultrasonography (US), contrast (bolus)-enhanced computed tomography (CT), and labeled red blood cell (RBC) scanning: sensitivity 85.7%, specificity 100%, positive predictive value (PPV) 100%, negative predictive value (NPV) 81.8%, and accuracy 91.3%. For FNH the combination of US and CT plus cholescintigraphy showed a sensitivity 82.1%, specificity 97.1%, PPV 95.8%, NPV 84.6%, and accuracy 90.3%. Surgical mortality was 0.6%. Observation of patients with hemangioma and FNH for a median of 32 months revealed no increase in tumor size in 80% and a decrease in fewer than 7%. There was no tumor rupture and no evidence of malignant transformation. We concluded that liver hemangioma and FNH can be differentiated from adenoma with high sensitivity, specificity, and accuracy by labeled RBC scanning and cholescintigraphy in combination with US and contrast-enhanced CT. In the case of symptoms or an equivocal diagnosis with respect to adenoma or hepatocellular carcinoma, surgery can be performed with very low risk. Because in asymptomatic patients with observed hemangioma or FNH no increase of tumor size can be expected for many years, the indications for surgery must be carefully evaluated.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    World journal of surgery 7 (1983), S. 240-240 
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. There are several theories about the physiologic regeneration of adrenals and maintenance of physiologic steroid secretion after subtotal loss of adrenal cortical cells. According to the cell migration theory, adrenocytes from the zona glomerulosa migrate centripetally toward the medulla. This theory is opposed by the zonal theory according to which each zone resplenishes its cells independently. What these theories have in common is that they are based on data from the intact adrenal gland. We transplanted purified glomerulosa cells under the kidney’s capsule of Lewis rats. The tissue was removed 30, 60, 90, and 150 days after transplantation to investigate the presence of two specific enzymes that are responsible for the secretion of aldosterone and corticosterone. Cytochrome p-450as is specific for glomerulosa cells producing aldosterone, and cytochrome p-45011β is specific for fasciculata cells producing corticosterone. After sequencing the genetic code of these enzymes it became possible to demonstrate expression of the enzymes by in situ hybridization. The transplanted glomerulosa cells turned their enzymatic property to fasciculata cells expressing cytochrome p-45011β. Our results suggest that glomerulosa cells are able to take over the physiologic function of a whole adrenal cortex in the absence of fasciculata cells, and that they are sufficient to maintain the function of the adrenal cortex.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La résection reste le traitement de choix des cancers du foie. Chez le patient ayant un carcinome estimé non résécable par des techniques traditionnelles, on a recours à des techniques ex-situ («bench» procédure), in-situ et ante-situm, chaque fois que possible. En dépit du manque de donneurs dans un centre qui compte actuellement 198 patients, la transplantation garde une place chez certains de ces patients. A présent, les indications sont des carcinomes hépatocellulaires de stade II selon l'UICC, les carcinomes fibro-lamellaires, et d'autres tumeurs plus rares telles que l'hémangioendothéliome, l'hépatoblastome et des métastases provenant des tumeurs neuroendocrines. En raison des résultats peu satisfaisants, on exclut les carcinomes stades III et IV, les cancers biliaires intrahépatiques, les hémangiosarcomes et les métastases en rapport avec des tumeurs non endocrines. En cas de tumeur avancée avec un envahissement extrahépatique, on peut parfois combiner la transplantation avec une résection multiorgane. Une amélioration de la survie, cependant, ne peut provenir que des thérapeutiques multidisciplinaires, qui doivent être évaluées par des essais randomisés.
    Abstract: Resumen La resección sigue siendo el tratamiento de preferencia en el cáncer del hígado. Con el objeto de evitar trasplante ex situ (procedimiento de “mesa”) de hígado en tumores convencionalmente no resecables, se debe preferir la técnica de resección in-situ y ante-situm siempre que sea posible. A pesar de la insuficiencia de órganos donantes, la experiencia de un solo centro con 198 pacientes revela que el trasplante de hígado mantiene su papel como una opción terapéutica real en pacientes seleccionados. En el momento actual las indicaciones “favorables” son el carcinoma hepatocelular en estado II de la Unión Internacional Contra el Cáncer (UICC), así como el carcinoma de subtipo fibrolamelar y, además, tumores muy poco frecuentes tales como el hemangioendotelioma epiteloide, el hepatoblastoma y las metástasis hepáticas de tumores neuroendocrinos. Debido a resultados poco satisfactorios en los carcinomas hepatocelulares en estados III y IV de los canales biliares intrahepáticos, del hemangiosarcoma y de las metástasis hepáticas de tumores primarios no endocrinos, éstos deben ser excluidos del trasplante. Para tales tumores avanzados, especialmente en el caso de extensión extrahepática, se ha comprobado la factibilidad de la combinación del trasplante de hígado con la resección multivisceral. Sin embargo, sólo se puede esperar una mejoría significativa de la supervivencia mediante los protocolos multimodales de tratamiento, los cuales requieren estudios randomizados adicionales.
    Notes: Abstract Resection remains the treatment of choice in liver cancer. In order to avoid liver transplantation in conventionally unresectable tumors ex-situ (“bench” procedure), in-situ and ante-situm resection technique should be prefered whenever feasible. Despite the deficiency of donor organs, a single center experience with 198 patients reveals that liver transplantation continues its role as a therapeutic option for selected patients. At present “favorable” indications for transplantation are International Union against Cancer (UICC)-stage II hepatocellular carcinoma as well as the subtype fibrolamellar carcinoma, uncommon tumors such as epitheloid hemangioendothelioma, hepatoblastoma, and liver metastases from neuroendocrine tumors. Due to unsatisfying results, intrahepatic bile duct-, stage III and IV hepatocellular carcinoma, hemangiosarcoma, and liver metastases from nonendocrine primaries should be excluded from liver transplantation alone. For these advanced tumors, especially in cases of extrahepatic involvement, a combination of liver transplantation and multivisceral resection has been proven feasible. However, a significant improvement in patient survival may only be expected by currently investigated multimodality treatment protocols which will require further randomized studies.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-2277
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...