David K.A.,Indivumed GmbH |
Unger F.T.,Indivumed GmbH |
Uhlig P.,Indivumed GmbH |
Juhl H.,Indivumed GmbH |
And 6 more authors.
Oncotarget | Year: 2014
An understanding of tissue data variability in relation to processing techniques during and postsurgery would be desirable when testing surgical specimens for clinical diagnostics, drug development, or identification of predictive biomarkers. Specimens of normal and colorectal cancer (CRC) tissues removed during colon and liver resection surgery were obtained at the beginning of surgery and postsurgically, tissue was fixed at 10, 20, and 45 minutes. Specimens were analyzed from 50 patients with primary CRC and 43 with intrahepatic metastasis of CRC using a whole genome gene expression array. Additionally, we focused on the epidermal growth factor receptor pathway and quantified proteins and their phosphorylation status in relation to tissue processing timepoints. Gene and protein expression data obtained from colorectal and liver specimens were influenced by tissue handling during surgery and by postsurgical processing time. To obtain reliable expression data, tissue processing for research and diagnostic purposes needs to be highly standardized.
Audet M.,University of Strasbourg |
Piardi T.,University of Strasbourg |
Panaro F.,University of Strasbourg |
Cag M.,University of Strasbourg |
And 5 more authors.
Clinical Transplantation | Year: 2010
Introduction: The advanced age of the recipient is considered a " relative contraindication" to liver transplantation (LT). However, recently some studies reported a morbidity rate and an overall survival comparable with those of younger patients. Here, we reported the outcome after LT in recipients aged >65 yr. Methods: Between January 2000 and December 2006, 565 LT was performed in 502 recipients in our institution. Of these, 34 were recipients of >65 yr old (aged group). We focused our study comparing: donor age, co-morbidities, model for end-stage liver disease (MELD) and American Society of Anesthesiologists (ASA) score, duration of operation, transfusions and outcome between the two groups (young/aged). Results: For the group aged >65: the mean donor age was 52.5 (range 16-75) yr and the graft weight 1339 g (890-1880 g). Co-morbidity was recorded in 25 (73.5%), coronary artery disease (CAD) in 17 (50%), diabetes mellitus (DM) and chronic renal insufficiency in four (11.7%) and chronic obstructive pulmonary disease (COPD) in three patients (8.8%). Mean MELD score was 14.9 (range 12-29) and ASA score was two in 15 (44.1%); and three in 19 (55.8%) recipients. Mean operation time was four h 45 min, three patients also received combined kidney transplantation. Twenty-five (73.5%) recipients received blood transfusions (mean 3.2). Morbidity was observed in 20 patients (58.8%); of these two had hepatic artery thrombosis requiring re-LT. Overall survival was 80% (40 months of follow-up), in particularly, at 30-d, one yr, three yr was 91%, 84%, 80%, respectively. The only two statistical differences reported (p = 0.02) are: the lower rate of CAD in the younger group of recipients (12%), compared with the aged group (50%) and the subsequently lower mortality rate secondary to cardiac causes in the younger group (1.4%) compared with aged group (8.8%). Conclusion: Our results suggest that the recipient age should not be considered an absolute contraindication for LT when the graft/recipient matching is optimal and when an adequate cardiac assessment is performed. © 2009 John Wiley & Sons A/S.
PubMed | University of Belgrade, Center for Endocrine Surgery and Surgical Clinic
Type: | Journal: International journal of endocrinology | Year: 2014
Background. Anaplastic thyroid cancer (ATC) is one of the tumors with the shortest survival in human medicine. Aim. The aim was to determine the importance of age in survival of patients with ATC. Material and Methods. We analyzed the data on 150 patients diagnosed with ATC in the period from 1995 to 2006. The Kaplan-Meier method and log-rank test were used to determine overall survival. Prognostic factors were identified by univariate and multivariate Cox regression analysis. Results. The youngest patient was 35 years old and the oldest was 89 years old. According to univariate regression analysis, age was significantly associated with longer survival in patients with ATC. In multivariate regression analysis, patients age, presence of longstanding goiter, whether surgical treatment is carried out or not, type of surgery, tumor multicentricity, presence of distant metastases, histologically proven preexistent papillary carcinoma, radioiodine therapy, and postoperative radiotherapy were included. According to multivariate analysis, besides surgery (P = 0.000, OR = 0.43, 95% CI = 0.29-0.63), only patients age (P = 0.023, OR = 0.68, 95% CI = 0.49-0.95) was independent prognostic factor of favorable survival in patients with ATC. Conclusion. Age is a factor that was independently associated with survival time in ATC. Anaplastic thyroid cancer has the best prognosis in patients younger than 50 years.
Farhi D.,Dermatology Clinic |
Trevidic P.,Surgica1 Clinic |
Kestemont C.P.,SurgicJ Clinic |
Boineau D.,Deriiiatology Clinic |
And 5 more authors.
Journal of Drugs in Dermatology | Year: 2013
Background: Emervel consists of a range of 5 hyaluronic acid (HA) fillers (Touch, Classic, Lips, Deep, and Volume), with a fixed HA concentration (20 mg/mL), and various degrees of cross-linking and calibration. Objectives: To describe the current use of Emervel fillers in France. Methods: Prospective multicenter, cross-sectional, real-practice, descriptive survey, including 1,822 patients injected with Emervel fillers for face rejuvenation by 58 French physicians between September 2010 and July 2011. The injection modalities were left to the respective physician's discretion. Results: The physicians were dermatologists (52.3%), surgeons (43.8%), or general practitioners (14.1%). Nasolabial folds (NLF) with a mean severity 2.4 were mainly injected with Emervel Deep (51.0%) and Emervel Classic (36.0%) (mean volume: 1.0 mL), and primarily with the linear retrograde (LR) technique (89.3%). Marionette lines (ML), with a mean severity 2.6 were mainly injected with Emervel Deep (52.5%) and Emervel Classic (34.6%) (mean volume: 0.8 mL), and mainly with the LR technique (79.5%). More than 90% of patients had scores of 0 or 1 for erythema, bruising, edema, and pain. No serious adverse events were reported up to 15 months after the injection. Conclusion: These data could contribute to upcoming international consensus on optimal injection modalities of the Emervel range of HA fillers.
PubMed | Surgical Clinic and ZHAW Zurich University of Applied Sciences
Type: | Journal: Swiss medical weekly | Year: 2015
Evidence-based recommendations play an important role in medical decision-making, but barriers to adherence are common. In Switzerland, the Swiss Medical Board (SMB) publishes evidence reports that conclude with recommendations. We assessed the impact of two SMB reports on service provision (2009: Recommendation of conservative treatment as first option for rupture of the anterior cruciate ligament of the knee; 2011: Recommendation against PSA screening for prostate cancer).We performed an observational study and assessed quantitative data over time via interrupted times series analyses. The primary outcome was the quarterly number of performed prostate-specific antigen (PSA) tests and the annual rates of surgical ACL repair in patients with ACL rupture. Data were adjusted for time trends and relevant confounders.We analysed PSA tests in 662,874 outpatients from 2005-2013 and treatment data in 101,737 patients with knee injury from 1990-2011. For the number of PSA tests, the secular trend before the intervention showed a continuous but diminishing increase over time. A statistically significant reduction in tests was estimated immediately after the intervention, but a later return to the trend before the intervention cannot be ruled out. The rate of surgical ACL repair had already declined after the late 1990s to about 55% in 2009. No relevant additional change emerged in this secular trend after the intervention.Despite some evidence of a possible change, we did not find a sustained and significant impact of SMB recommendations in our case study. Further monitoring is needed to confirm or refute these findings.
Gritti P.,Ospedali Riuniti di Bergamo |
Sgarzi M.,Ospedali Riuniti di Bergamo |
Carrara B.,Ospedali Riuniti di Bergamo |
Lanterna L.A.,Ospedali Riuniti di Bergamo |
And 6 more authors.
Acta Anaesthesiologica Scandinavica | Year: 2012
Background Video-assisted thoracoscopic extended thymectomy (VATET) is well established in the treatment of myasthenia gravis; however, patient selection remains controversial. Perioperative management protocol is lacking, and concerns regarding post-operative myasthenic crisis still remain. We performed a retrospective observational study evaluating the impact of the introduction of a protocol in the perioperative management of patients with myasthenia gravis who underwent VATET. Methods The perioperative management protocol was developed by a team of neurologists and anesthesiologists who reviewed the literature and their previous experience on myasthenia gravis patients. Respiratory, clinical, and neurological patient features were included in the protocol evaluation. A retrospective review of patients who underwent VATET before and after introduction to the protocol was finally performed. Results The medical records of 66 patients (pre-protocol group) and 44 patients (protocol group) were available for the study. In the pre-protocol group, 17 patients (26%) were admitted to intensive care unit (ICU) during the post-operative period, while three patients (6.8%) of the protocol group met the criteria for ICU post-operative admission. This resulted in a reduction of 73.5% of patients admitted to ICU (P = 0.023) and in an 80% (P = 0.002) reduction of the use neuromuscular blocking agents. Two post-operative myasthenic crises preceded by bulbar symptoms (1.8%) were identified in the pre-protocol group patients. Conclusions Although the application of our protocol results in a substantial reduction in the recovery of patients in the ICU and in hospital costs, there was no substantial difference in mortality and morbidity between patients admitted to the surgical ward or to ICU. © 2011 The Authors Acta Anaesthesiologica Scandinavica.
Immunohistochemical evaluation of fibrillar components of the extracellular matrix of transversalis fascia and anterior abdominal rectus sheath in men with inguinal hernia [Avaliação imunoistoquímica dos componentes fibrilares na matriz extracelular da fáscia transversal e da bainha do músculo reto abdominal de homens portadores de hérnia inguinal]
Goncalves R.O.,Surgical Clinic |
De Moraes E Silva E.,Anatomy |
Lopes Filho G.J.,Surgical Gastroenterology
Revista do Colegio Brasileiro de Cirurgioes | Year: 2014
Objective: To evaluate the role of fibrillar extracellular matrix components in the pathogenesis of inguinal hernias. Methods: Samples of the transverse fascia and of the anterior sheath of the rectus abdominis muscle were collected from 40 men aged between 20 and 60 years with type II and IIIA Nyhus inguinal hernia and from 10 fresh male cadavers (controls) without hernia in the same age range. The staining technique was immunohistochemistry for collagen I, collagen III and elastic fibers; quantification of fibrillar components was performed with an image analysis processing software. Results: No statistically significant differences were found in the amount of elastic fibers, collagen I and collagen III, and the ratio of collagen I / III among patients with inguinal hernia when compared with subjects without hernia. Conclusion: The amount of fibrillar extracellular matrix components did not change in patients with and without inguinal hernia.
Verification of the feasibility of autogenous testis implant in omentum and abdominal wall in mice [Verificação da viabilidade do transplante autógeno de testículo no omento e na parede abdominal em ratos]
Nunes S.I.,Surgical Clinic |
Fernandes C.B.F.,Federal University of Juiz de fora |
De Rezende D.F.,Scientific Methodology
Revista do Colegio Brasileiro de Cirurgioes | Year: 2013
Objective: To verify the feasibility of autologous transplantation of testes to the abdominal wall and omentum of rats without vascular anastomosis, analyzing the histological structure of the testicular cells after implantation. Methods: We used 60 male Wistar rats, 10-12 weeks of age, which were divided into three groups: control group: 20 rats without orchiectomy with sham operation; group 2: 20 rats undergoing bilateral orchiectomy, with one of the testicles being implanted into the greater omentum; and group 3: 20 rats submitted to bilateral orchiectomy, with one testicle implanted in the abdominal wall. After two months they were euthanized and the testes evaluated by histopathology. Results: the weight of the implants had a loss of 0.62 g in group 2, 0.73 g in group 3, whilst in the control group testes increased by 0.1 g. In pathological studies, the testicular structure was preserved in the control group; in group 2 there was 80% of inflammation and necrosis, Sertoli and Leydig cells were not visualized, and seminiferous tubules were found in two animals; in group 3 we found 75% of inflammation and a 60% necrosis, Sertoli cells could be visualized in only one specimen, while Leydig cells were seen in three. Conclusion: autologous transplantation of testis to the greater omentum and abdominal wall without vascular anastomosis is not viable in rats.
Eichler K.,University of Zürich |
Hess S.,University of Zürich |
Riguzzi M.,University of Zürich |
Can U.,Surgical Clinic |
Brugger U.,University of Zürich
Swiss Medical Weekly | Year: 2015
QUESTIONS UNDER STUDY: Evidence-based recommendations play an important role in medical decisionmaking, but barriers to adherence are common. In Switzerland, the Swiss Medical Board (SMB) publishes evidence reports that conclude with recommendations. We assessed the impact of two SMB reports on service provision (2009: Recommendation of conservative treatment as first option for rupture of the anterior cruciate ligament of the knee; 2011: Recommendation against PSA screening for prostate cancer). METHODS: We performed an observational study and assessed quantitative data over time via interrupted times series analyses. The primary outcome was the quarterly number of performed prostate-specific antigen (PSA) tests and the annual rates of surgical ACL repair in patients with ACL rupture. Data were adjusted for time trends and relevant confounders. RESULTS: We analysed PSA tests in 662,874 outpatients from 2005-2013 and treatment data in 101,737 patients with knee injury from 1990-2011. For the number of PSA tests, the secular trend before the intervention showed a continuous but diminishing increase over time. A statistically significant reduction in tests was estimated immediately after the intervention, but a later return to the trend before the intervention cannot be ruled out. The rate of surgical ACL repair had already declined after the late 1990s to about 55% in 2009. No relevant additional change emerged in this secular trend after the intervention. CONCLUSIONS: Despite some evidence of a possible change, we did not find a sustained and significant impact of SMB recommendations in our case study. Further monitoring is needed to confirm or refute these findings.
PubMed | Surgical Clinic
Type: Journal Article | Journal: Journal of clinical oncology : official journal of the American Society of Clinical Oncology | Year: 2016
17159 Background: Sleeve Lobectomy (Sl) is generally considered a surgical alternative of choice to Pneumonectomy (Pn) for the treatment of central NSCLC. The aim of this study is to value if the Sl could be really a Lung saving procedure that warrants right survivals, according to stage of disease, with acceptable perioperative risks.In 165 patients (67 Sl and 98 Pn) operated from 1995 to 2003 for NSCLC of main bronchus we have analyzed the hospital stay, morbidity and mortality within 30 days, long term survival. In 39 Sl and 46 Pn we compared spyrometric volumes changes at a distance of 6-24 months from operation. Sl was performed where it was technically possible. Long term survivals had been separated and comparated according to pathologic stadium (TNM 1997) and lymphonodal involvement: all these data were estimated by Kaplan-Meier method and log rank test. All statistical data underwent SPSS elaboration and significant assumption for p < 0.05.In our population of study we didnt check any statistically significants differences comparing age, sex or preoperative Fev1. Complications occurred in 28% of cases where Sl was performed and in 36.7% after Pn with a mortality rate of 2.9% vs 5.1%. Average hospital staying was longer in patients underwent to Pneumonectomy. Long term survival (5 years) in Sl group is 36% and 24% in Pn group with a statistically significant difference P = 0.016, but this difference is not evident from the comparison between the two groups survivals based on pathological stadium or lymphonodal involvement. Spyrometric values showed a global Fev1 reduction of 245 ml (-10%) after Sl procedure and 884ml (36.3%) after Pn with a significant difference of p = 0.0042.In this study Sl got similar survival results if not better, with those obtained after Pn. Moreover, Sl showed to be a lung sparing procedure with an acceptable operative risk. These data confirmed that SL is the gold standard surgical procedure in the treatment of central tumors where if technically possible. [Table: see text] No significant financial relationships to disclose.