BACKGROUND:Liver resection (LR) within a multimodal treatment concept of hepatic metastases (HM) that results from breast cancer has been controversially discussed. The aim of this study was to evaluate the outcome of LR in patients with hepatic breast cancer metastases.METHODS:Prospectively collected data from 41 consecutive patients who underwent LR for HM between 1999 and 2008 were analyzed retrospectively. Univariate and multivariate analyses were performed to assess potential prognostic factors.RESULTS:Segmental resection was performed in 46% and major hepatectomy in 54% of patients. The postoperative mortality rate was 0%. At a median follow-up of 34 months, 26 patients were alive. The median and 5-year overall survival rates after LR were 58 months and 48%, respectively. The median and 5-year disease-free survivals were 34 months and 31%, respectively. The intrahepatic recurrence-free 5-year survival was 62%. The median survival from time of diagnosis of HM was 79 months. The positive resection margin as well as a disease-free interval between the treatment of the primary tumor and the diagnosis of HM < 1 year were independent predictors of overall survival.CONCLUSIONS:LR of hepatic breast cancer metastases within a multimodal treatment concept is a safe procedure in well-selected patients. Both a short time interval to the development of HM and positive resection margins after LR are strongly associated with worse long-term survival.
PURPOSE:Few studies on long-term quality of life after restorative proctocolectomy and ileal pouch-anal anastomosis have been published. Most of them survey a mixed patient population of familial adenomatous polyposis and ulcerative colitis. The present study analyzes long-term results more than 10 years after ileal pouch-anal anastomosis for patients with familial adenomatous polyposis, exclusively.METHODS:One hundred thirty-five patients who underwent ileal pouch-anal anastomosis more than 10 years ago were identified from the prospective familial adenomatous polyposis registry at Heidelberg University hospital. They received the German version of the health-specific Short Form 36 Health Survey and the disease-specific Gastrointestinal Quality of Life Index by mail. To assess the impact of disease-specific factors, 10 questions asking for ability to work, current medication, pouchitis, and extracolonic manifestations of familial adenomatous polyposis were added to the Gastrointestinal Quality of Life Index questionnaire.RESULTS:Among 84 patients who answered the questionnaires the median follow-up was 13.4 years (range, 10.3-23.8 y).The results of the Short Form 36 Health Survey were comparable to a German normative population in all dimensions, whereas the overall score for the Gastrointestinal Quality of Life Index was significantly reduced compared with healthy individuals (111.8 vs 120.8, P = .0014). Carcinoma at the time of ileal pouch-anal anastomosis, desmoid tumors, or duodenal adenomas had no significant influence on quality of life. More than 7 bowel movements during the daytime were found to reduce quality of life significantly (103.5 vs 115, P = .0127). More than 2 defecations per night diminished the score further (101 vs 125, P < .0001). Patients younger than 40 years at the time of ileal pouch-anal anastomosis had significantly better results than older patients (120 vs 109.5, P = .0076).CONCLUSION:Ileal pouch-anal anastomosis is a safe surgical procedure with a high quality of life comparable to that of a normative population after long-term follow-up of patients with familial adenomatous polyposis.
The aim of this study was to assess quality of life (QOL) in a long-term follow-up of patients with ulcerative colitis (UC) 10 years and more after ileal pouch–anal anastomosis (IPAA) to correlate these results with pouch function and to assess the long-term pouch failure rate.
A state of constant change and new beginnings is a truism for all surgery, worldwide. Billroth, again and again, regarded surgery as an international matter. The strength of tradition in the field of surgery lies in the preservation of principles of medicine and ethics, and in the basic rules of the teachings of indication. A wide-ranging academic and medical territory was being developed with the amicable and hegemonial spread of English. The concept of globalisation dominates the imagination at the moment, but also political and economic thinking and discussion. This is not quite true of medicine, as medical science is not globally uniform, owing to the many different conditions for work, in particular for surgery.
Liver metastases occur frequently in colorectal cancer and are probably caused by disseminated tumor cells having been trapped in the liver. The prognostic significance of hematogenous tumor cell dissemination has already been demonstrated for blood and bone marrow of patients with colorectal cancer. The aim of this study was to investigate the frequency and prognostic significance of disseminated tumor cells in liver biopsies of colorectal cancer patients.
BACKGROUND:Hematogenous tumor-cell dissemination during diagnostic and therapeutic procedures in patients with colorectal cancer has been demonstrated.OBJECTIVE:The aim of this study was to investigate the extent of disseminated tumor cells in blood samples of rectal cancer patients after endorectal ultrasound and to determine its prognostic relevance.MATERIALS AND METHODS:Peripheral venous blood samples from 45 patients with rectal cancer were taken before and after endorectal ultrasound. Blood samples were examined using a reverse transcriptase-polymerase chain reaction (RT-PCR) assay to amplify cytokeratin 20 transcripts. Overall survival of the patients was calculated by the Kaplan-Meier method.RESULTS:Disseminated tumor cells were detected in peripheral blood samples of 17 of 45 (38%) patients before and after endorectal ultrasound. Circulating tumor cells were found in 11 of 45 (24%) patients only after endorectal ultrasound (p=0.006). There was a clear trend toward a worse prognosis in patients with tumor cells in blood samples after endorectal ultrasound, but this difference was not statistically significant.CONCLUSION:This study demonstrates significantly increased hematogenous tumor-cell dissemination after endorectal ultrasound in rectal cancer patients. Patients with tumor cells in blood samples after endorectal ultrasound tend to have a worse prognosis. The potential prognostic impact of this finding is presently unclear and has to be further validated in larger clinical trials.
There is evidence suggesting that stenosing and fistulising Crohn’s diseases reflect specific entities. The aim of this study was to compare these two clinical presentations with regards to anastomotic recurrence after ileocaecal resection and identify other relevant risk factors.
Background and aims The pathogenesis of pouchitis, major complication after restorative proctocolectomy, and ileal J pouch-anal anastomosis (IPAA) in patients with ulcerative colitis (UC) is still unclear. Changes in intraluminal bacterial colonization and correlated changes of pouch mucosa are thought to play an important role. Toll-like receptors (TLRs) as part of the innate immune system are capable of recognizing bacterial antigens. Their activation can lead to secretion of proinflammatory mediators. In this study, TLR2, 3, 4, and 5 expression profiles in the pouch mucosa of patients with UC and IPAA were analyzed and correlated with pouchitis. Materials and methods Clinical symptoms, endoscopy, and histology were assessed in 35 patients using the Heidelberg Pouchitis Activity Score to classify patients as either having pouchitis or not. TLR mRNA expression in normal ileal mucosa and pouch mucosa was investigated by performing semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR). The results of RT-PCR were associated with the pouchitis score. Results In the analysis of all patients, TLR3 expression was decreased significantly whereas TLR5 expression was increased significantly in pouch mucosa compared to normal ileal mucosa ( p -values 0.0076 and 0.016, respectively). A more detailed analysis upon dividing the patients into patients with and without pouchitis showed decreased TLR3 expression in the pouch mucosa only of patients without pouchitis ( p -value=0.0067). TLR5 expression was increased in the pouch mucosa only of patients with pouchitis ( p -value=0.023). No differences in TLR2 and 4 expression were found in either group. Conclusion Differential expression of TLR3 and 5 suggests bacterial involvement in the pathogenesis of pouchitis in patients with UC.
Colombo-Benkmann, Mario MD; Stern, Josef MD; Herfarth, Christian MD, FACS Author Information
INTRODUCTION:Liver microcirculation disturbances are a cause of hepatic failure in sepsis. Increased leukocyte-endothelial interaction, platelet adherence and impaired microperfusion cause hepatocellular damage. The time course and reciprocal influences of ongoing microcirculatory events during endotoxemia have not been clarified.METHODS:Male Wistar rats (232 +/- 17 g) underwent cecal ligation and puncture (CLP). Intravital microscopy (IVM) was performed 0, 1, 3, 5, 10 and 20 hours after CLP. Mean erythrocyte velocity, leukocyte and platelet rolling in postsinusoidal venules and sticking of leukocytes and platelets in postsinusoidal venules and hepatic sinusoids were determined. Heart rate (HR), mean arterial pressure (MAP) and portal venous blood flow (PBF) were measured. Blood count and investigation of hepatic enzyme release was performed after each IVM time point.RESULTS:Hepatic platelet-endothelial adherence in liver sinusoids and postsinusoidal venules occurred one hour after the induction of endotoxemia. Leukocyte-endothelial interaction started three to five hours after CLP. A decrease of hepatic microperfusion could be observed at three hours in sinusoids and ten hours in postsinusoidal venules after CLP, although PBF was reduced one hour after CLP. HR remained stable and MAP decreased ten hours after CLP. Hepatic enzymes in blood were significantly elevated ten hours after CLP.CONCLUSION:Hepatic platelet-endothelial interaction is an early event during endotoxemia. Leukocyte adherence occurs later, which underlines the probable involvement of platelets in leukocyte recruitment. Although PBF is reduced immediately after CLP, the later onset of hepatic microperfusion decrease makes the existence of autoregulatory liver mechanisms likely.
AIM:To analyze the importance in predicting patients risk of mortality due to upper gastrointestinal (UGI) bleeding under today's therapeutic regimen.METHODS:From 1998 to 2001, 121 patients with the diagnosis of UGI bleeding were treated in our hospital. Based on the patients' data, a retrospective multivariate data analysis with initially more than 270 single factors was performed. Subsequently, the following potential risk factors underwent a logistic regression analysis: age, gender, initial hemoglobin, coumarines, liver cirrhosis, prothrombin time (PT), gastric ulcer (small curvature), duodenal ulcer (bulbus back wall), Forrest classification, vascular stump, variceal bleeding, Mallory-Weiss syndrome, RBC substitution, recurrent bleeding, conservative and surgical therapy.RESULTS:Seventy male (58%) and 51 female (42%) patients with a median age of 70 (range: 21-96) years were treated. Their in-hospital mortality was 14%. While 12% (11/91) of the patients died after conservative therapy, 20% (6/30) died after undergoing surgical therapy. UGI bleeding occurred due to duodenal ulcer (n = 36; 30%), gastric ulcer (n = 35; 29%), esophageal varicosis (n = 12; 10%), Mallory-Weiss syndrome (n = 8; 7%), erosive lesions of the mucosa (n = 20; 17%), cancer (n = 5; 4%), coagulopathy (n = 4; 3%), lymphoma (n = 2; 2%), benign tumor (n = 2; 2%) and unknown reason (n = 1; 1%). A logistic regression analysis of all aforementioned factors revealed that liver cirrhosis and duodenal ulcer (bulbus back wall) were associated risk factors for a fatal course after UGI bleeding. Prior to endoscopy, only liver cirrhosis was an assessable risk factor. Thereafter, liver cirrhosis, the location of a bleeding ulcer (bulbus back wall) and patients' gender (male) were of prognostic importance for the clinical outcome (mortality) of patients with a bleeding ulcer.CONCLUSION:Most prognostic parameters used in clinical routine today are not reliable enough in predicting a patient's vital threat posed by an UGI bleeding. Liver cirrhosis, on the other hand, is significantly more frequently associated with an increased risk to die after bleeding of an ulcer located at the posterior duodenal wall.
Objective: To evaluate limb-salvage surgery with vascular resection for lower extremity soft tissue sarcomas (STS) in adult patients and to classify blood vessel involvement.Methods. Subjects were consecutive patients (median age, 56 years) who underwent vascular replacement during surgery of STS in the lower limb between January 1988 and December 2003. Blood vessel involvement by STS was classified as follows: type 1, artery and vein; type II, artery only; type III, vein only; and type IV, neither artery nor vein (excluded from the analysis). Patient data were prospectively gathered in a computerized database.Results. Twenty-one (9.9%) of 213 patients underwent vascular resections for lower limb STS. Be-sides 17 type I tumors (81.0%), 3 (14.3%) type II and 1 (4.7%) type III STS were diagnosed. Arterial reconstruction was performed for all type I and II tumors. Venous replacement in type I and III tumors was performed in 66.7% of patients. Autologous vein (n = 8) and synthetic (Dacron and expanded polytetrafluoroethylene; n = 12) bypasses were used with comparable frequency for arterial repair, whereas expanded polytetrafluoroethylene prostheses were implanted in veins. Morbidity was 57.2% (hematoma, thrombosis, and infection), and mortality was 5% (embolism). At a median follow-up of 34 months, the primary and secondary patency rates of arterial (venous) reconstructions were 58.3% (54.9%) and 78.3% (54.9%). Limb salvage was achieved in 94.1% of all cases. The 5-year local control rate and survival rate were 80.4% and 52%, respectively. We observed a 5-year metastasis-free survival rate of 37.7% and found vessel infiltration and higher tumor grade (low-grade vs intermediate grade and high grade tumors) to be negative prognostic factors at univariate and multivariate analysis.Conclusions. Long-term bypass patency rates, the high percentage of limb salvage, and the oncologic outcome underline the efficacy of en bloc resection of STS involving major vessels in the lower limb. Disease-specific morbidity must be anticipated. The classification of vascular involvement (type I to IV) is useful for surgical management.
Volume, efficiency, and quality in hospital care are often mixed in debate. We analyze how these dimensions are interrelated in surgical hospital management, with particular focus on volume effects: under financial constraints, efficiency is the best form of cost control. External perception of quality is important to attract patients and gain volumes. There are numerous explicit and implicit notions of surgical quality. The relevance of implicit criteria (functionality, reliability, consistency, customaziability, convenience) can change in the time course of hospital competition. Outcome data theoretically are optimal measures of quality, but surgical quality is multifactorially influenced by case mix, surgical technique, indication, process designs, organizational structures, and volume. As quality of surgery is hard to grade, implicit criteria such as customizability currently often overrule functionality (outcome) as the dominant market driver. Activities and volumes are inputs to produce quality. Capability does not translate to ability in a linear function. Adequate process design is important to realize efficiency and quality. Volumes of activities, degree of standardization, specialization, and customer involvement are relevant estimates for process design in services. Flow-orientated management focuses primarily on resource utilization and efficiency, not on surgical quality. The relationship between volume and outcome in surgery is imperfectly understood. Factors involve learning effects both on process efficiency and quality, increased standardization and task specialization, process flow homogeneity, and potential for process integration. Volume is a structural component to develop efficiency and quality. The specific capabilities and process characteristics that contribute to surgical outcome improvement should be defined and exported. Adequate focus should allow even small institutions to benefit from volume-associated effects. All volumes-based learning within standardized processes will finally lead to a plateauing of quality. Only innovations will then further improve quality. Possessing volume can set the optimal ground for continuous process research, subsequent change, innovation, and optimization, while volume itself appears not to be a quality prerequisite.
Objective: The objective of this study was to evaluate the prognostic significance of preoperative positron emission tomography (PET) using 2-fluoro-2-deoxy-D-glucose (FDG) by calculating the mean standardized uptake values (SUV) in patients with resectable soft tissue sarcomas (STS).Summary and Background Data: FDG-PET might be used as an adjunctive tool (in addition to biopsy and radiologic tomography) in the preoperative prognostic assessment of resectable STS.Methods: A total of 74 adult patients with STS underwent preoperative FDG-PET imaging with calculation of the SUV. Clinicopathologic data and the SUV were analyzed for an association with the clinical outcome. The first and the third quartiles of the SUV distribution function were used as cutoff values (1.59 and 3.6). Survival was estimated by the Kaplan-Meier method. Univariate and multivariate analyses were performed using log-rank test and the Cox proportional hazards regression model.Results: In 55 cases, STS were completely resected (follow up 40 months): 5-year recurrence-free survival rates in patients with SUV < 1.59, 1.59 to <3.6, and greater than or equal to3.6 were 66%, 24%, and 11%, respectively (P = 0.0034). SUV was a predictor for overall survival (5-year rates: 84% [SUV <1.59], 45% [SUV 1.59 to <3.6], and 38% [SUV greater than or equal to 3.6]; P = 0.057) and local tumor control (5-year rates: 93% [SUV <1.59], 43% [SUV 1.59 to <3.61, and 15% [SUV greater than or equal to 3.6]; P = 0.00 17). By multivariate analysis, SUV was found to be predictive for recurrence-free survival. The prognostic differences with respect to the SUV were associated with tumor grade (P = 0.002).Conclusion: The semiquantitative FDG uptake, as measured by the mean SUV on preoperative PET images in patients with resectable STS, is a useful prognostic parameter. SUV with cutoff values at the first and the third quartiles of the SUV distribution predicted overall survival, recurrence-free survival, and local tumor control. Therefore, FDG-PET can be used to improve the preoperative prognostic assessment in patients with resectable STS.
Background The aim of this study was to analyze the presentation of, surgery for, and prognosis of malignant vascular tumors (MVTs). Methods This was an observational single-center study. Patients who underwent operation for MVTs between 1988 and 2004 were included. Data were gathered prospectively in a computerized registry. Results Of 568 adult patients with soft tissue malignancies, 43 (7.6%) were treated for MVTs. Twenty-four men and 19 women (median age, 55.3 years) were referred for 30 primary tumors and 13 recurrences. Symptoms were observed in 90.7% of the cases (swelling [37.2%], pain [34.9%], extrusion [11.6%], hemorrhage [7%], weight loss [4.7%], loss of energy [4.7%], impaired function [4.7%], and others [30.2%]). Tumors were located in the extremities (n = 16), trunk (n = 3), abdomen (n = 15), retroperitoneum (n = 7), and thyroid gland (n = 2). Twenty-two (51.2%) angiosarcomas, nine (20.9%) malignant hemangiopericytomas, eight (18.6%) malignant epithelioid hemangioendotheliomas, and four (9.3%) lymphangiosarcomas were seen. The median overall survival after surgery was 21.4 months, with 2-, 5-, and 10-year overall survival rates of 41.5%, 38.3%, and 18.8%, respectively. MVTs of the extremities and trunk and localized disease indicated a better prognosis than abdominal or retroperitoneal MVTs (univariate and multivariate analyses: P = .0122 and P = .0287) and metastasized stages (univariate and multivariate analyses: P = .0187 and P = .0287). Conclusions A considerable number of patients with soft tissue malignancies undergo surgery for MVT. Various symptoms and a multilocular occurrence are typical. The course of MVTs is aggressive. Tumor site and stage are important prognostic factors. Surgery is potentially curative, especially for localized disease of the extremities and trunk.
Introduction: Increased leukocyte-endothelial interaction (LEI) leading to hepatic microperfusion disorders is proposed as major contributor for hepatic failure during sepsis. Recently it has been demonstrated that complement inhibition by C1-inhibitor (C1-INH) is an effective treatment against microcirculatory disturbances in various diseases. The purpose of this study was to investigate the influence of C1-INH on microcirculation and LEI in the liver in a rat model of sepsis. Materials and Methods: Rats received lipopolysaccharides (LPS) from Escherichia coli intravenously. Controls received Ringer solution only. Ninety minutes after LPS infusion some animals were treated with C1-INH intravenously (LPS + C1-INH). Others (LPS + SC) and controls (Ringer + SC) received sodium chloride (SC). Hepatic LEI and mean erythrocyte velocity (MEV) were quantified by intravital microscopy (IVM) 90 min after LPS or Ringer infusion (0) and 30, 60, 90 and 120 min following treatment. VCAM-1 m-RNA in hepatic tissue, C3a, TNF-alpha and hepatic enzyme liberation in blood was analysed. Results: Leukocyte sticking to the endothelial wall in postsinusoidal venules was significantly reduced in the LPS + C1-INH vs. the LPS + SC group 30, 60, 90 and 120 min after treatment. VCAM-I m-RNA expression in the hepatic tissue was markedly and C3a levels in plasma were significantly reduced in the LPS + C1-INH vs. the LPS + SC group. No differences in TNF-alpha levels were detected between these two groups. MEV was improved in the LPS + C1-INH vs. the LPS + SC group. Conclusions: Our results indicate that even upon delayed treatment hepatic adhesion molecule expression and LEI can be reduced by C1-INH. The multifunctional regulator may reduce hepatic microcirculatory disturbances during sepsis under clinical conditions. (C) 2004 Elsevier Inc. All rights reserved.
PURPOSE: Data on the actual uptake of genetic testing forhereditary nonpolyposis colorectal cancer (HNPCC) in aclinical sample is still inconclusive. The present study aimedto define the actual uptake of genetic counseling and testingoffered to an unselected sample of 140 patients with colorectalcancer, fulfilling clinical criteria (Amsterdam orBethesda) suggestive of HNPCC, and to identify demographicand psychosocial factors associated with the decisionto participate in counseling. METHODS: Crosssectionalsurvey. Eligible subjects had been consecutivelyenrolled in a regional tumor registry between 1994 and1998, and were invited to attend an information session forHNPCC at the time genetic testing for HNPCC became available.Participants and nonparticipants in the informationsession completed a short questionnaire. RESULTS: The actualuptake rate of the information session in this samplewas 26 percent. Participants and nonparticipants were comparablewith regard to clinical criteria suggestive of HNPCC,awareness of the potential hereditary predisposition, andprevious history of cancer in the family. Some 60 percent ofparticipants experienced pronounced distress related totheir potential inheritance of the disorder, compared to 35percent among nonparticipants. Distress reached a clinicallysignificant level in 28 percent of participants. Restrictedcommunication within the family was observed frequently.Irrespective of groups, a positive attitude towardobtaining a gene test result predominated. CONCLUSIONS:Results suggest that expressed intention and attitude towardgenetic testing do not reliably predict actual uptake ofcounseling or testing. Thorough interdisciplinary counselingshould be provided to every patient with clinical criteriasuggestive of HNPCC. The considerable distress related tothe hereditary disorder should be adequately addressed, asshould be communication issues.
Humanmedizin und Globalisierung sind nicht ohne weiteres vergleichbar und deckungsfähig. Trotzdem gehören sie zusammen: die humane Medizin hat durchaus einen globalen Auftrag. Aber die Weltkarte mit ihren über 170 Ländern birgt größte Widersprüche, Kontraste und Inkompatibilitäten. Gefordert wurde daher eine „New Map of the World“.