Background: Patients with atrial fibrillation (AF) in Germany are often managed jointly by primary-care physicians in cooperation with cardiologists. We aimed to investigate the management and 1-year outcomes of AF patients in this setting. Hypothesis: We set out to describe the current management of AF patients in primary care settings in Germany. Methods: Observational registry with 1-year follow-up, performed by a representative, randomly selected sample of 781 primary-care physicians in Germany. Results: Of 3781 patients with electrocardiographically documented AF, 3163 patients (age 71.9 ± 9.2 years, 57.9% males) were followed for 1 year; 28.4% had paroxysmal, 27.0% persistent, and 43.3% permanent AF. Comorbid conditions were common (mean CHA 2 DS 2 -VASc score 3. 8 ± 1.7). Rhythm-control therapy was used in 16.4%. Although oral anticoagulation was often used (82.7% at baseline), stroke rate during follow-up was high (2.7% stroke, 3.0% transient ischemic attack). Despite a long duration of AF (mean duration 61 months at enrollment), 18.5% of patients were hospitalized during the 1-year follow-up. Conclusions: In this unselected group of patients with long-standing AF managed in primary care, hospitalizations and cardiovascular complications including strokes are frequent, illustrating the need to improve management of AF patients.The ATRIUM registry was performed by Sanofi-Aventis Germany in cooperation with the German Atrial Fibrillation Network (AFNET). Drs. Schmalowsky and Rosin are full-time employees of Sanofi-Aventis, and the other authors have received consulting honoraria from sanofi-aventis for research and advice. Dr. Kirchhof has served as an advisor or consultant for 3M
High-Content Analysis (HCA) has developed into an established tool and is used in a wide range of academic laboratories and pharmaceutical research groups. HCA is now routinely proving to be effective in providing functionally relevant results. It is essential to select the appropriate HCA application with regard to the targeted compound's cellular function. The cellular impact and compound specificity as revealed by HCA analysis facilitates reaching definitive conclusions at an early stage in the drug discovery process. This technology therefore has the potential to substantially improve the efficiency of pharmaceutical research. Recent advances in fluorescent probes have significantly boosted the success of HCA. Auto-fluorescent proteins which minimally hinder the functioning of the living cell have been playing a decisive role in cell biology research. For companies the severely restricted license conditions regarding auto-fluorescent proteins hamper their general use in pharmaceutical research. This has opened the field for other solutions such as self-labeling protein technology, which could potentially replace the well established methods that utilize auto-fluorescent proteins. In addition, direct labeling techniques have improved considerably and may supersede many of the approaches based on fusion proteins. Following sample preparation, treated cells are imaged and the resulting multiple fluorescent signals are subjected to contextual and statistical analysis. The extraordinary advantage of HCA is that it enables the large-scale and simultaneous quantification and correlation of multiple phenotypic responses and physiological reactions using sophisticated software solutions that permit assay-specific image analysis. Hence, HCA once more has demonstrated its outstanding potential to significantly support establishing effective pharmaceutical research processes in order to both advance research projects and cut costs.
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