284 research outputs found
Practical experiences with nonchemical methods of weed control gathered in the farm network “Dem-onstration farms for integrated pest management”
Um die Umsetzung des integrierten Pflanzenschutzes (IPS) in der Praxis zu fördern, vorbeugende und alternative Verfahren zu demonstrieren und die Pflanzenschutzmittelanwendungen auf das notwendige Maß zu beschränken, hat das Bundesministerium für Ernährung und Landwirtschaft das Modellvorhaben "Demonstrationsbetriebe integrierter Pflanzenschutz" initiiert. Von 2011 bis 2018 haben sich deutschlandweit 67 Praxisbetriebe aus den Produktionsbereichen Ackerbau, Apfelanbau, Feldgemüsebau, Hopfenanbau und Weinbau jeweils für fünf Jahre engagiert, um den IPS auf ihren Flächen und Anlagen zu optimieren. Unter anderem wurden verschiedene nichtchemische Verfahren zur Unkrautbekämpfung erprobt. Grundsätzlich erfolgten die Unkrautbekämpfungsmaßnahmen in den Demonstrationsbetrieben nach Befallsermittlungen und entsprechend des standortspezifischen Unkrautbesatzes. Die erprobten nichtchemischen Verfahren führten meist zu zufriedenstellenden Bekämpfungserfolgen, waren jedoch oft mit hohen zeitlichen und finanziellen Aufwendungen verbunden und witterungsanfällig. Die Vorteile und Grenzen bei der Anwendung der einzelnen Verfahren werden erörtert. Weitere Informationen: https://demo-ips.julius-kuehn.de/The model project “Demonstration farms for integrated pest management” lasted from 2011 to 2018 within total 67 participating farms specialised in arable farming, viticulture and the cultivation of apple, hops and field vegetables. Its intention was to support the implementation of integrated pest management (IPM) as well as to demonstrate preventive and alternative pest control measures to farmers, advisers and the public and to limit pesticide use to the necessary minimum. During the five years of participation, the farmers were committed to optimise their plant protection practices. Weed control measures in principle based on weed monitoring and the local weed pressure. The farmers tested different nonchemical weed control measures, which generally were effective, but demanded great efforts in terms of time and investment. Furthermore, the practical feasibility of most of these weed control measures was highly dependent on local weather conditions. This paper refers to the experiences, benefits and limits of the different weed control measures observed in the demonstration farm network
Combined subvalvular aortic stenosis, subvalvular pulmonary stenosis and membranous ventricular septal defect
Synergistic effects of levosimendan and convalescence plasma as bailout strategy in acute cardiogenic shock in COVID-19: A case report
Clinical experience with medical hypnosis as an adjunctive therapy in heart surgery
Heart surgery patients are at high risk for psychological trauma and comorbid psychological disorders. Depression, anxiety, and post-traumatic stress disorders in this patient group are predictors of outcomes after cardiac surgery. Medical hypnosis is effective for non-pharmacologic prevention and treatment of psychological disorders and has been associated with improved health-related quality of life and better cardiovascular outcomes. This contribution makes note of evidence of the effectiveness of medical hypnosis in a discussion of the clinical experience with specific hypnotherapeutic tools and interventions from the perspective of the mental health team in one large cardiac center in Germany. Based on our experience, we encourage heart centers to educate their heart surgery care teams about the core concepts of medical hypnosis and to make hypnotherapeutic techniques available as an adjunctive therapy
Coronary artery bypass grafting: Part 2—optimizing outcomes and future prospects
Since first introduced in the mid-1960s, coronary artery bypass grafting (CABG) has become the standard of care for patients with coronary artery disease. Surprisingly, the fundamental surgical technique itself did not change much over time. Nevertheless, outcomes after CABG have dramatically improved over the first 50 years. Randomized trials comparing percutaneous coronary intervention (PCI) to CABG have shown converging outcomes for select patient populations, providing more evidence for wider use of PCI. It is increasingly important to focus on the optimization of the short- and long-term outcomes of CABG and to reduce the level of invasiveness of this procedure. This review provides an overview on how new techniques and widespread consideration of evolving strategies have the potential to optimize outcomes after CABG. Such developments include off-pump CABG, clampless/anaortic CABG, minimally invasive CABG with or without extending to hybrid procedures, arterial revascularization, endoscopic vein harvesting, intraprocedural epiaortic scanning, graft flow assessment, and improved secondary prevention measures. In addition, this review represents a framework for future studies by summarizing the areas that need more rigorous clinical (randomized) evaluatio
A silent gigantic solitary fibrous tumor of the pleura: case report
Solitary fibrous tumor of the pleura is a rare mesenchymal tumor, representing less than 5% of all neoplasms associated with the pleura. A 57-year-old man had general malaise without chest symptoms for 1 month. A chest roentgenogram and computed tomography showed a giant mass in the left thorax. Although the tumor compressed the descending aorta and other mediastinal structures strongly, thereby shifting them to the right side, the patient had no symptoms except malaise. The tumor was successfully resected via two separate thoracotomies. The tumor was measured (20 cm × 19 cm × 15 cm) and weighed (2150 g). The tumor was histologically and immunohistochemically diagnosed as benign. Although SFT is benign, a long follow-up period is essential as even patients with complete resection are at risk of recurrence many years after surgery
Measurement of Circulating 1,25-Dihydroxyvitamin D: Comparison of an Automated Method with a Liquid Chromatography Tandem Mass Spectrometry Method
Background. The clinical relevance of circulating 1,25-dihydroxyvitamin D (1,25(OH)2D) is probably underappreciated, but variations in the measurement of this difficult analyte between different methods limit comparison of results. Methods. In 129 clinical samples, we compared a new automated assay with a commercially available liquid chromatography tandem mass spectrometry (LC-MS/MS) kit. Results. Median (interquartile range) 1,25(OH)2D concentrations with the automated assay and the LC-MS/MS method were 26.6 pg/mL (18.5–39.0 pg/mL) and 23.6 pg/mL (16.1–31.3 pg/mL), respectively (P=0.001). Using the method-specific cut-offs for deficient 1,25(OH)2D levels (<20 pg/mL for the automated assay and <17 pg/mL for the LC-MS/MS method), the percentage of patients classified as 1,25(OH)2D deficient was 28.7% and 27.1%, respectively. However, concordance between the two methods for deficient levels was only 62% and the concordance correlation coefficient was poor (0.534). The regression equation resulted in an intercept of −1.99 (95% CI: −7.33–1.31) and a slope of 1.27 (95% CI: 1.04–1.52) for the automated assay. The mean bias with respect to the mean of the two methods was −3.8 (1.96 SD: −28.3–20.8) pg/mL for the LC-MS/MS method minus the automated assay. Conclusions. The two methods show only modest correlation and further standardization is required to improve reliability and comparability of 1,25(OH)2D test procedures
Causes and predictors of early mortality in patients treated with left ventricular assist device implantation in the European Registry of Mechanical Circulatory Support (EUROMACS)
Purpose: The aim of the study was to analyze early mortality after continuous-flow left ventricular assist device (LVAD) implantation which remains high. Methods: We analyzed consecutive (n = 2689) patients from the European Registry for Patients with Mechanical Circulatory Support (EUROMACS) undergoing continuous-flow LVAD implantation. The primary outcome was early (< 90 days) mortality. Secondary outcomes were differential causes of early post-operative death following LVAD implantation. Results: Univariable and multivariable analysis as well as regression analysis were used to examine determinants and differential causes of early (< 90 days) mortality after LVAD implantation. During the first 90 days, 2160 (80%) patients were alive with ongoing LVAD support, 40(2%) patients underwent heart transplantation, and 487(18%) deceased. The main causes of early death were MOF (36%), sepsis (28%), cardiopulmonary failure (CPF; 10%), CVA (9%), and right-sided heart failure (RHF, 8%). Furthermore, MOF and sepsis are 70% of causes of death in the first week. Independent clinical predictors of early death were age, female sex, INTERMACS profile 1 to 3, and ECMO. Laboratory predictors included elevated serum creatinine, total bilirubin, lactate, and low hemoglobin. Furthermore, hemodynamic predictors included elevated RA-to-PCWP ratio, pulmonary vascular resistance, and low systemic vascular resistance. Longer total implantation time was also independent predictor of early mortality. A simple model of 12 variables predicts early mortality following LVAD implantation with a good discriminative power with area under the curve of 0.75. Conclusions: In the EUROMACS registry, approximately one out of five patients die within 90 days after LVAD implantation. Early mortality is primarily dominated by multiorgan failure followed by sepsis. A simple model identifies important parameters which are associated with early mortality following LVAD implantation
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