983 resultados para Heckel, Theodor


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BACKGROUND Sutureless aortic valve replacement (SU-AVR) is an innovative approach which shortens cardiopulmonary bypass and cross-clamp durations and may facilitate minimally invasive approach. Evidence outlining its safety, efficacy, hemodynamic profile and potential complications is replete with small-volume observational studies and few comparative publications. METHODS Minimally invasive aortic valve surgery and high-volume SU-AVR replacement centers were contacted for recruitment into a global collaborative coalition dedicated to sutureless valve research. A Research Steering Committee was formulated to direct research and support the mission of providing registry evidence warranted for SU-AVR. RESULTS The International Valvular Surgery Study Group (IVSSG) was formed under the auspices of the Research Steering Committee, comprised of 36 expert valvular surgeons from 27 major centers across the globe. IVSSG Sutureless Projects currently proceeding include the Retrospective and Prospective Phases of the SU-AVR International Registry (SU-AVR-IR). CONCLUSIONS The global pooling of data by the IVSSG Sutureless Projects will provide required robust clinical evidence on the safety, efficacy and hemodynamic outcomes of SU-AVR.

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BACKGROUND Sutureless aortic valve replacement (SU-AVR) has emerged as an innovative alternative for treatment of aortic stenosis. By avoiding the placement of sutures, this approach aims to reduce cross-clamp and cardiopulmonary bypass (CPB) duration and thereby improve surgical outcomes and facilitate a minimally invasive approach suitable for higher risk patients. The present systematic review and meta-analysis aims to assess the safety and efficacy of SU-AVR approach in the current literature. METHODS Electronic searches were performed using six databases from their inception to January 2014. Relevant studies utilizing sutureless valves for aortic valve implantation were identified. Data were extracted and analyzed according to predefined clinical endpoints. RESULTS Twelve studies were identified for inclusion of qualitative and quantitative analyses, all of which were observational reports. The minimally invasive approach was used in 40.4% of included patients, while 22.8% underwent concomitant coronary bypass surgery. Pooled cross-clamp and CPB duration for isolated AVR was 56.7 and 46.5 minutes, respectively. Pooled 30-day and 1-year mortality rates were 2.1% and 4.9%, respectively, while the incidences of strokes (1.5%), valve degenerations (0.4%) and paravalvular leaks (PVL) (3.0%) were acceptable. CONCLUSIONS The evaluation of current observational evidence suggests that sutureless aortic valve implantation is a safe procedure associated with shorter cross-clamp and CPB duration, and comparable complication rates to the conventional approach in the short-term.

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Boberach: Behandelt werden Alexander Freiherr von Soiron, Jakob Venedey, Oskar von Wydenbrugk, Gottlieb Christian Schüler, Heinrich Freiherr von Gagern, Ernst Moritz Arndt, Carl Theodor Welcker, Friedrich Ludwig Jahn, Franz Schuselka, Friedrich Siegmund Jucho, Johann Gustav Moritz Heckscher, Felix Fürst von Lichnowsky, Friedrich Christoph Dahlmann, Anton Ritter von Schmerling, Franz Raveaux, Heinrich Simon, Johann Jacoby, Robert Blum, Johann Erzherzog von Österreich, Louis Cavaignac, Friedrich Hecker, Friedrich von Wrangel, Joseph Wenzel Graf Radetzky, Joseph Freiherr Jellachich von Buszin, Hermann Rollett, Alphonse de Lamartine, Georg Jung, Louis Napoleon, Ernst Alfred Fürst zu Windischgrätz, Ferdinand Freiligrath, Ludwig Kossuth, Emanuel Geibel

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Welsch (Projektbearbeiter): Darlegung der Haltungen der 'Neuen Hessischen Zeitung', der Regierung, der Radikalen und der Konservativen

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Welsch (Projektbearbeiter): Empfehlung, anstelle des Geschichtsprofessors Friedrich Bruno Hildebrand den Philosophieprofessor Karl Theodor Bayrhoffer als Vertreter Marburgs in die konstituierende Nationalversammlung zu Frankfurt/Main zu entsenden

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Welsch (Projektbearbeiter): Zurückweisung von Gerüchten über ein bevorstehendes Einrücken von vier böhmischen Regimentern in Wien

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Welsch (Projektbearbeiter): Bekräftigung des bereits erfolgten militärischen Abzuges, um anderslautenden Gerüchten entgegenzutreten

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Welsch (Projektbearbeiter): Aufruf angesichts antideutscher Exzesse während des Prager Pfingstaufstandes, den "Uebermuth der aufständigen Slaven" zu brechen. Warnung vor dem Zerfall des österreichischen Kaiserstaates

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Welsch (Projektbearbeiter): Positive Reaktion des Kriegsministeriums auf einen Aufruf der Wiener Nationalgarde an das Heer. Die in der fraglichen Manifestation ausgesprochenen "loyalen Gesinnungen" werden ihren günstigen Eindruck auf die Armee nicht verfehlen

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Welsch (Projektbearbeiter): Warnung vor einem angeblich unmittelbar bevorstehenden russischen Einmarsch nach Galizien und Siebenbürgen. Aufruf zur Verteidigung der errungenen Freiheiten: " ... sollte der Friede nur auf Kosten unserer Freiheit erhalten, mit dem Verlust unserer Errungenschaften erkauft werden können; dann rufen wir alle voll Begeisterung und Thatkraft: Krieg mit Rußland!"

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Welsch (Projektbearbeiter): Befürwortung jüdischer Bestrebungen einer Auswanderung nach Amerika (mit durchaus antisemitischem Hintergrund)

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Welsch (Projektbearbeiter): Darlegung der Grundsätze der deutsch-katholischen religiösen Bewegung nebst kurzen biographischen Angaben zu Johannes Ronge, dem Urheber derselben

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Welsch (Projektbearbeiter): Aufforderung an bedürftige Gewerbetreibende, sich zwecks Einreichung von Hilfsgesuchen an ihre Vertrauensmänner in den jeweiligen Innungen zu wenden

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OBJECTIVES Defensive coping (DefS) in Blacks has been associated with greater cardiovascular risk than in their White counterparts. We examined associations between endothelial function mental stress responses and markers of vascular structure in a bi-ethnic cohort. METHODS We examined vascular function and structure in 368 Black (43.84±8.31years) and White Africans (44.78±10.90years). Fasting blood samples, 24h blood pressure, left carotid intima-media thickness of the far wall (L-CIMTf), and left carotid cross-sectional wall area (L-CSWA) values were obtained. von Willebrand factor (VWF), endothelin-1 (ET-1) and nitric oxide metabolite (NOx) responses to the Stroop mental stress test were calculated to assess endothelial function. DefS was assessed using the Coping Strategy Indicator questionnaire. Interaction between main effects was demonstrated for 283 participants with DefS scores above the mean of 26 for L-CIMTf. RESULTS Blunted stress responses for VWF (men 16.71% vs. 51.10%; women 0.85% vs. 42.09%, respectively) and NOx (men -64.52% vs. 74.89%; women -76.16% vs. 113.29%, respectively) were evident in the DefS Blacks compared to the DefS Whites (p<0.001). ET-1 increased more in Blacks (men 150% and women 227%, p<0.001) compared to the Whites (men 61.25% and women 35.49%, p<0.001). Ambulatory pulse pressure, but not endothelial function markers, contributed to L-CIMTf (ΔR(2)=0.11 p<0.001), and L-CSWA (ΔR(2)=0.08, p<0.001) in DefS African men but not in any other group. CONCLUSIONS Blunted stress-induced NOx and VWF responses and augmented ET-1 responses in DefS Blacks indicate endothelial dysfunction. DefS may facilitate disturbed endothelial responses and enforce vascular remodelling via compensatory increases in pulse pressure in Black men. These observations may indicate an increased risk of cardiovascular incidents via functional and structural changes of the vasculature in DefS Blacks.