123 research outputs found
Fertility-Sparing Surgery in Early Epithelial Ovarian Cancer: A Viable Option?
Epithelial ovarian cancer (EOC) continues to represent one of the most lethal conditions in women in the western countries. With the shifting of childbearing towards higher age, EOC increasingly affects women with active childbearing wish, resulting in major impacts on treatment management. Next to the optimal therapeutic treatment strategies, gynecologic oncologists are being asked to incorporate into their decision-making processes the patients' wish for fertility preserving alternatives ideally without compromising oncologic safety. Nowadays, fertility-sparing surgery represents an effective alternative to conventional radical cytoreduction in younger women with early stages of the disease. As such, this paper considers indications for fertility sparing surgery in EOC, reflects on outcomes from the oncologic and reproductive data of the largest and most relevant series outcomes data, reporting on fertility sparing techniques in EOC, reviews medicamentous efforts to prevent chemotherapy induced gonadotoxicity, and discusses future aspects in the gynecologic cancer management
Damage to the right insula disrupts the perception of affective touch
© 2020 Kirsch et al. This article is distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use and redistribution provided that the original author and source are credited.Specific, peripheral C-tactile afferents contribute to the perception of tactile pleasure, but the brain areas involved in their processing remain debated. We report the first human lesion study on the perception of C-tactile touch in right hemisphere stroke patients (N = 59), revealing that right posterior and anterior insula lesions reduce tactile, contralateral and ipsilateral pleasantness sensitivity, respectively. These findings corroborate previous imaging studies regarding the role of the posterior insula in the perception of affective touch. However, our findings about the crucial role of the anterior insula for ipsilateral affective touch perception open new avenues of enquiry regarding the cortical organization of this tactile system.Peer reviewe
A Prospective Substudy of a Randomized Controlled Trial
Malignant ascites (MA) is most commonly observed in patients scheduled for
epithelial ovarian cancer (EOC) surgery and is supposed as a major risk factor
promoting perioperative hemodynamic deterioration. We aimed to assess the
hemodynamic consequences of MA on systemic circulation in patients undergoing
cytoreductive EOC surgery. This study is a predefined post-hoc analysis of a
randomized controlled pilot trial comparing intravenous solutions within a
goal-directed algorithm to optimize hemodynamic therapy in patients undergoing
cytoreductive EOC surgery. Ascites was used to stratify the EOC patients prior
to randomization in the main study. We analyzed 2 groups according to the
amount of ascites (NLAS: none or low ascites [<500 mL] vs HAS: high ascites
group [>500 mL]). Differences in hemodynamic variables with respect to time
were analyzed using nonparametric analysis for longitudinal data and
multivariate generalized estimating equation adjusting the analysis for the
randomized study groups of the main study. A total of 31 patients in the NLAS
and 16 patients in the HAS group were analyzed. Although cardiac output was
not different between groups suggesting a similar circulatory blood flow, the
HAS group revealed higher heart rates and lower stroke volumes during surgery.
There were no differences in pressure-based hemodynamic variables. In the HAS
group, fluid demands, reflected by the time to reindication of a fluid
challenge after preload optimization, increased steadily, whereas stroke
volume could not be maintained at baseline resulting in hemodynamic
instability after 1.5 h of surgery. In contrast, in the NLAS group fluid
demands were stable and stroke volume could be maintained during surgery.
Clinically relevant associations of the type of fluid replacement with
hemodynamic consequences were particularly observed in the HAS group, in which
transfusion of fresh frozen plasma (FFP) was associated to an improved
circulatory flow and reduced vasopressor and fluid demands, whereas the
administration of artificial infusion solutions was related to opposite
effects. Malignant ascites >500 mL implies increased fluid demands and
substantial alterations in circulatory blood flow during cancer surgery. Fresh
frozen plasma transfusion promotes recovering hemodynamic stability in
patients with malignant ascites >500 mL, in whom artificial infusion solutions
could not prevent from hemodynamic deterioration
High-Mobility Group Box-1 Protein Serum Levels Do Not Reflect Monocytic Function in Patients with Sepsis-Induced Immunosuppression
Background. High-mobility group box-1 (HMGB-1) protein is released during “late sepsis” by activated monocytes. We investigated whether systemic HMGB-1 levels are associated with indices of monocytic activation/function in patients with sepsis-induced immunosuppression. Methodology. 36 patients (31 male, 64 ± 14 years) with severe sepsis/septic shock and monocytic deactivation (reduced mHLA-DR expression and TNF-α release) were assessed in a subanalysis of a placebo-controlled immunostimulatory trial using GM-CSF. HMGB-1 levels were assessed over a 9-day treatment interval. Data were compared to standardized biomarkers of monocytic immunity (mHLA-DR expression, TNF-α release). Principle findings. HMGB-1 levels were enhanced in sepsis but did not differ between treatment and placebo groups at baseline (14.6 ± 13.5 versus 12.5 ± 11.5 ng/ml, P = .62). When compared to controls, HMGB-1 level increased transiently in treated patients at day 5 (27.8 ± 21.7 versus 11.0 ± 14.9, P = .01). Between group differences were not noted at any other point of assessment. HMGB-1 levels were not associated with markers of monocytic function or clinical disease severity. Conclusions. GM-CSF treatment for sepsis-induced immunosuppression induces a moderate but only transient increase in systemic HMGB-1 levels. HMGB-1 levels should not be used for monitoring of monocytic function in immunostimulatory trials as they do not adequately portray contemporary changes in monocytic immunity
Continuous low flow ascites drainage through the urinary bladder via the Alfapump system in palliative patients with malignant ascites.
BACKGROUND
Malignant Ascites (MA) is a therapeutic dilemma significantly impairing patients' quality of life (QoL). The Sequana Medical alfapump System (AP), a subcutaneous, externally rechargeable, implantable device, continually draining ascites via the urinary bladder, has been well established in liver cirrhosis, but not yet in MA. The AP-system was evaluated in cancer patients in reducing the need for large volume paracentesis (LVP).
METHODS
A retrospective multicentre evaluation of all eligible patients who received an AP for MA-palliation was performed. AP was evaluated for its ability to reduce LVP and cross-correlated with adverse events (AE), survival and retrospective physician-reported QoL.
RESULTS
Seventeen patients with median age of 63 years (range: 18-81), 70.6% female, across 7 primary tumour types were analysed. Median duration of AP-implantation was 60 min (range: 30-270) and median post-implantation hospital stay: 4 days (range: 2-24). Twelve protocol-defined AE occurred in 5 patients (29.4%): 4 kidney failures, 4 pump/catheter-related blockages, 3 infections/peritonitis and 1 wound dehiscence. Median ascitic volume (AV) pumped daily was 303.6 ml/day (range:5.6-989.3) and median total AV drained was 28 L (range: 1-638.6). Median patient post-AP-survival was 111 days (range:10-715) and median pump survival was 89 days (range: 0-715). Median number of paracenteses was 4 (range: 1-15) per patient pre-implant versus 1 (range: 0-1) post-implant (p = 0.005). 71% of patients were reported to have an improvement of at least one physician reported QoL-parameters.
CONCLUSIONS
AP appears to be effective in palliating patients with MA by an acceptable morbidity profile. Its broader implementation in oncology services should be further explored.
TRIAL REGISTRATION
NCT03200106; June 27, 2017
An automated ranking platform for machine learning regression models for meat spoilage prediction using multi-spectral imaging and metabolic profiling
Over the past decade, analytical approaches based on vibrational spectroscopy, hyperspectral/multispectral imagining and biomimetic sensors started gaining popularity as rapid and efficient methods for assessing food quality, safety and authentication; as a sensible alternative to the expensive and time-consuming conventional microbiological techniques. Due to the multi-dimensional nature of the data generated from such analyses, the output needs to be coupled with a suitable statistical approach or machine-learning algorithms before the results can be interpreted. Choosing the optimum pattern recognition or machine learning approach for a given analytical platform is often challenging and involves a comparative analysis between various algorithms in order to achieve the best possible prediction accuracy.
In this work, “MeatReg”, a web-based application is presented, able to automate the procedure of identifying the best machine learning method for comparing data from several analytical techniques, to predict the counts of microorganisms responsible of meat spoilage regardless of the packaging system applied. In particularly up to 7 regression methods were applied and these are ordinary least squares regression, stepwise linear regression, partial least square regression, principal component regression, support vector regression, random forest and k-nearest neighbours.
MeatReg” was tested with minced beef samples stored under aerobic and modified atmosphere packaging and analysed with electronic nose, HPLC, FT-IR, GC–MS and Multispectral imaging instrument. Population of total viable count, lactic acid bacteria, pseudomonads, Enterobacteriaceae and B. thermosphacta, were predicted. As a result, recommendations of which analytical platforms are suitable to predict each type of bacteria and which machine learning methods to use in each case were obtained. The developed system is accessible via the link: http://elvis.misc.cranfield.ac.uk/SORF/
Clinical value of bioelectrical properties of cancerous tissue in advanced epithelial ovarian cancer patients
Currently, there are no valid pre-operatively established biomarkers or algorithms that can accurately predict surgical and clinical outcome for patients with advanced epithelial ovarian cancer (EOC). In this study, we suggest that profiling of tumour parameters such as bioelectrical-potential and metabolites, detectable by electronic sensors, could facilitate the future development of devices to better monitor disease and predict surgical and treatment outcomes. Biopotential was recorded, using a potentiometric measurement system, in ex vivo paired non-cancerous and cancerous omental tissues from advanced stage EOC (n = 36), and lysates collected for metabolite measurement by microdialysis. Consistently different biopotential values were detected in cancerous tissue versus non-cancerous tissue across all cases (p < 0.001). High tumour biopotential levels correlated with advanced tumour stage (p = 0.048) and tumour load, and negatively correlated with stroma. Within our EOC cohort and specifically the high-grade serous subtype, low biopotential levels associated with poorer progression-free survival (p = 0.0179, p = 0.0143 respectively). Changes in biopotential levels significantly correlated with common apoptosis related pathways. Lactate and glucose levels measured in paired tissues showed significantly higher lactate/glucose ratio in tissues with low biopotential (p < 0.01, n = 12). Our study proposes the feasibility of biopotential and metabolite monitoring as a biomarker modality profiling EOC to predict surgical and clinical outcomes
Immediate referral to colposcopy versus cytological surveillance for minor cervical cytological abnormalities in the absence of HPV test
A C K N O W L E D G E M E N T S The authors wish to acknowledge Jo Morrison for her clinical and editorial advice, Jane Hayes f or designing the search strategy and Gail Quinn, Clare Jess and Tracey Bishop for their contribution to the editorial process.This project was supported by the National Institute for Health Research, via Cochrane Infrastructure funding to the Cochrane Gynaecological, Neuro-oncology and Orphan Cancer Group. The views and opinions expressed therein are those of the authors andd o not necessarily reflect those of the Systematic Reviews Programme, NIHR, NHS or the Department of Health.Peer reviewedPublisher PD
FIGO staging of endometrial cancer: 2023
INTRODUCTION: Many advances in the understanding of the pathologic and molecular features of endometrial cancer have occurred since the FIGO staging was last updated in 2009. Substantially more outcome and biological behavior data are now available regarding the several histological types. Molecular and genetic findings have accelerated since the publication of The Cancer Genome Atlas (TCGA) data and provide improved clarity on the diverse biological nature of this collection of endometrial cancers and their differing prognostic outcomes. The goals of the new staging system are to better define these prognostic groups and create substages that indicate more appropriate surgical, radiation, and systemic therapies.
METHODS: The FIGO Women\u27s Cancer Committee appointed a Subcommittee on Endometrial Cancer Staging in October 2021, represented by the authors. Since then, the committee members have met frequently and reviewed new and established evidence on the treatment, prognosis, and survival of endometrial cancer. Based on these data, opportunities for improvements in the categorization and stratification of these factors were identified in each of the four stages. Data and analyses from the molecular and histological classifications performed and published in the recently developed ESGO/ESTRO/ESP guidelines were used as a template for adding the new subclassifications to the proposed molecular and histological staging system.
RESULTS: Based on the existing evidence, the substages were defined as follows:
SUMMARY: The updated 2023 staging of endometrial cancer includes the various histological types, tumor patterns, and molecular classification to better reflect the improved understanding of the complex nature of the several types of endometrial carcinoma and their underlying biologic behavior. The changes incorporated in the 2023 staging system should provide a more evidence-based context for treatment recommendations and for the more refined future collection of outcome and survival data
堆肥センターの計画的設置による広域的環境保全型農業推進システムの構築に関する研究
平成9年度-平成10年度年度科学研究費補助金 (基盤研究(C)(2) 課題番号09660240) 研究成果報告
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