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Thiele H, Freund A, Gimenez MR, de Waha-Thiele S, Akin I, Pöss J, Feistritzer HJ, Fuernau G, Graf T, Nef H, Hamm C, Böhm M, Lauten A, Schulze PC, Voigt I, Nordbeck P, Felix SB, Abel P, Baldus S, Laufs U, Lenk K, Landmesser U, Skurk C, Pieske B, Tschöpe C, Hennersdorf M, Wengenmayer T, Preusch M, Maier LS, Jung C, Kelm M, Clemmensen P, Westermann D, Seidler T, Schieffer B, Rassaf T, Mahabadi AA, Vasa-Nicotera M, Meincke F, Seyfarth M, Kersten A, Rottbauer W, Boekstegers P, Muellenbach R, Dengler T, Kadel C, Schempf B, Karagiannidis C, Hopf HB, Lehmann R, Bufe A, Baumanns S, Öner A, Linke A, Sedding D, Ferrari M, Bruch L, Goldmann B, John S, Möllmann H, Franz J, Lapp H, Lauten P, Noc M, Goslar T, Oerlecke I, Ouarrak T, Schneider S, Desch S, Zeymer U. Extracorporeal life support in patients with acute myocardial infarction complicated by cardiogenic shock - Design and rationale of the ECLS-SHOCK trial. Am Heart J 2021; 234:1-11. [PMID: 33428901 DOI: 10.1016/j.ahj.2021.01.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 01/05/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND In acute myocardial infarction complicated by cardiogenic shock the use of mechanical circulatory support devices remains controversial and data from randomized clinical trials are very limited. Extracorporeal life support (ECLS) - venoarterial extracorporeal membrane oxygenation - provides the strongest hemodynamic support in addition to oxygenation. However, despite increasing use it has not yet been properly investigated in randomized trials. Therefore, a prospective randomized adequately powered clinical trial is warranted. STUDY DESIGN The ECLS-SHOCK trial is a 420-patient controlled, international, multicenter, randomized, open-label trial. It is designed to compare whether treatment with ECLS in addition to early revascularization with percutaneous coronary intervention or alternatively coronary artery bypass grafting and optimal medical treatment is beneficial in comparison to no-ECLS in patients with severe infarct-related cardiogenic shock. Patients will be randomized in a 1:1 fashion to one of the two treatment arms. The primary efficacy endpoint of ECLS-SHOCK is 30-day mortality. Secondary outcome measures such as hemodynamic, laboratory, and clinical parameters will serve as surrogate endpoints for prognosis. Furthermore, a longer follow-up at 6 and 12 months will be performed including quality of life assessment. Safety endpoints include peripheral ischemic vascular complications, bleeding and stroke. CONCLUSIONS The ECLS-SHOCK trial will address essential questions of efficacy and safety of ECLS in addition to early revascularization in acute myocardial infarction complicated by cardiogenic shock.
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Affiliation(s)
- Holger Thiele
- Heart Center Leipzig at University of Leipzig and Leipzig Heart Institute, Leipzig, Germany.
| | - Anne Freund
- Heart Center Leipzig at University of Leipzig and Leipzig Heart Institute, Leipzig, Germany
| | - Maria Rubini Gimenez
- Heart Center Leipzig at University of Leipzig and Leipzig Heart Institute, Leipzig, Germany
| | | | | | - Janine Pöss
- Heart Center Leipzig at University of Leipzig and Leipzig Heart Institute, Leipzig, Germany
| | - Hans-Josef Feistritzer
- Heart Center Leipzig at University of Leipzig and Leipzig Heart Institute, Leipzig, Germany
| | | | - Tobias Graf
- University Heart Center Luebeck, Luebeck, Germany
| | - Holger Nef
- University Clinic Giessen, Giessen, Germany
| | - Christian Hamm
- University Clinic Giessen, Giessen, Germany; Kerckhoff Clinic Bad Nauheim, Bad Nauheim, Germany
| | | | | | | | - Ingo Voigt
- Contilia Elisabeth-Krankenhaus, Essen, Germany, Essen, Germany
| | | | - Stephan B Felix
- Dept. of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - Peter Abel
- Dept. of Internal Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - Stephan Baldus
- Heart Center Cologne, University Clinic Cologne, Cologne, Germany
| | | | | | | | | | - Burkert Pieske
- Charité University Medicine, Campus Virchow Klinikum and German Heart Center and Berlin Brandenburger Center for Regenerative Therapies (BCRT) of the Berlin Institute of Health (BIH), Berlin, Germany
| | - Carsten Tschöpe
- Charité University Medicine, Campus Virchow Klinikum and German Heart Center and Berlin Brandenburger Center for Regenerative Therapies (BCRT) of the Berlin Institute of Health (BIH), Berlin, Germany
| | | | | | | | - Lars S Maier
- University Clinic Regensburg, Regensburg, Germany
| | | | - Malte Kelm
- University Clinic Düsseldorf, Düsseldorf, Germany
| | | | | | - Tim Seidler
- Heart Center Göttingen, University Medicine Göttingen, Göttingen, Germany
| | | | - Tienush Rassaf
- Dept. of Cardiology and Vascular Medicine, West German Heart- and Vascular Center, University Hospital Essen, Germany
| | - Amir-Abbas Mahabadi
- Dept. of Cardiology and Vascular Medicine, West German Heart- and Vascular Center, University Hospital Essen, Germany
| | | | | | - Melchior Seyfarth
- Heart Center Wuppertal; Witten-Herdecke University, Wuppertal, Germany
| | | | | | | | | | - Thomas Dengler
- SLK Clinic Bad Friedrichshall, Bad Friedrichshall, Germany
| | | | | | | | | | | | - Alexander Bufe
- Helios Clinic Krefeld, Krefeld, University Witten/Herdecke, Germany
| | | | | | - Axel Linke
- Heart Center Dresden - Technical University Dresden, Dresden, Germany
| | | | | | | | | | - Stefan John
- Paracelsius Private University, Clinic Nuremberg, Campus South, Nuremberg, Germany
| | | | | | | | | | - Marko Noc
- University Medical Center Ljubljana, Ljubljana, Slovenia
| | - Tomaz Goslar
- University Medical Center Ljubljana, Ljubljana, Slovenia
| | | | | | | | - Steffen Desch
- Heart Center Leipzig at University of Leipzig and Leipzig Heart Institute, Leipzig, Germany
| | - Uwe Zeymer
- Institut für Herzinfarktforschung, Ludwigshafen, Germany
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Nguyen XD, Schulze TJ, Bugert P, Lauber-Härtl S, Schulz-Linkholt M, González-Schulze K, Reil A, Dengler T, Panzer S, Seifried E. Granulocyte antibodies in male blood donors: can they trigger transfusion-related acute lung injury? Transfusion 2018; 58:1894-1901. [PMID: 29707799 DOI: 10.1111/trf.14630] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 02/23/2018] [Accepted: 03/04/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND White blood cell-associated antibodies can lead to transfusion-related acute lung injury (TRALI). Female donors with a history of pregnancies have been identified as a main cause for these antibodies. Male or female donors without a history of pregnancy are considered as safe donors. STUDY DESIGN AND METHODS Following the identification of two TRALI cases associated with blood products from male donors, we investigated the frequency of granulocyte-specific and human leukocyte antigen (HLA) antibodies in the entire blood donor population using a high throughput automated flow-cytometry-based granulocyte immunofluorescence test (Flow-GIFT). We investigated sera from 14,343 whole blood donors (female, n = 6974, 48.7%; male, n = 7369, 51.3%) using automated Flow-GIFT. Of the female blood donors, 60.4% had a history of pregnancy. Positive sera were retested by the standard granulocyte immunofluorescence test and granulocyte agglutination test. For the detection of HLA Class I and II immunoglobulin G antibodies, we used a commercial screening enzyme-linked immunosorbent assay. RESULTS We detected in 924 (21.9%) of the 4212 females with a history of pregnancy antibodies against granulocyte antigens (n = 62, 1.5%), HLA Class I and/or II antigens (n = 864, 20.5%). Notably, in 3.5% (n = 96) of 2762 females without a history of pregnancy and in 2.1% (n = 154) of 7369 males antibodies against granulocyte antigens (n = 13, 0.47% and n = 45, 0.6%), HLA Class I and/or II (n = 83, 3% and n = 109, 1.4%, respectively), were also detected. CONCLUSION Human neutrophil antigen antibodies are rare in male and females without a history of pregnancy compared to females with a history of pregnancy, but their relevance is not negligible.
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Affiliation(s)
- Xuan-Duc Nguyen
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service Baden-Württemberg-Hessen, Mannheim, Germany
| | - Torsten J Schulze
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service Baden-Württemberg-Hessen, Mannheim, Germany.,German Red Cross Blood Service NSTOB, Institute Springe, Springe, Germany
| | - Peter Bugert
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service Baden-Württemberg-Hessen, Mannheim, Germany
| | - Stephanie Lauber-Härtl
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service Baden-Württemberg-Hessen, Mannheim, Germany
| | - Monika Schulz-Linkholt
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service Baden-Württemberg-Hessen, Mannheim, Germany
| | - Karen González-Schulze
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, German Red Cross Blood Service Baden-Württemberg-Hessen, Mannheim, Germany
| | | | - Thomas Dengler
- Institute of Transfusion Medicine and Immunohematology, Baden-Baden, German Red Cross Blood Service Baden-Württemberg-Hessen, Baden-Baden, Germany
| | - Simon Panzer
- Department of Blood Group Serology and Transfusion Medicine, Medical University Vienna, Vienna, Austria
| | - Erhard Seifried
- Institute of Transfusion Medicine and Immunohematology, German Red Cross Blood Service Baden-Württemberg-Hessen, Goethe University Hospital, Frankfurt am Main, Germany
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Stellos K, May A, Shankar V, Kurz K, Katus H, Celik S, Langer H, Gawaz M, Dengler T. Platelet-associated LIGHT (TNFSF14) mediates adhesion of platelets to human vascular endothelium. Thromb Haemost 2017. [DOI: 10.1160/th07-02-0096] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryLIGHT (TNFSF 14) belongs to the tumor necrosis factor super-family and is expressed by different types of immune cells. Recently, LIGHT was found to be associated with platelets and released upon activation. Activation of endothelial cells by recombinant LIGHT results in pro-inflammatory and pro-thrombotic changes, qualitatively comparable to effects of CD40 ligand. Given the important role of platelet-associated CD40 ligand in vascular inflammatory responses we investigated the role of LIGHT for activation of endothelium and adhesion of platelets to endothelial cells. Expression of LIGHT was detected on thrombocytes upon exposure to ADP or TRAP-1. The expression of the LIGHT receptors TR2 and LTβR on native human endothelial cells was confirmed by FACS analysis. LIGHT mediated adhesion of platelets to endothelium significantly, occurring both under static and dynamic flow conditions. This interaction was inhibited by a monoclonal antibody to LIGHT but not a control IgG. Moreover, in-vitro stimulation of endothelial cells with recombinant soluble human LIGHT (rhLIGHT) resulted in significantly increased transcriptional and translational upregulation of inflammatory markers ICAM-1, tissue factor (TF) and IL-8. This activation of endothelial cells by LIGHT was mediated by NFκB activation and qualitatively comparable to that induced by membrane-bound CD40-ligand on transfected cells. Furthermore, plasma levels of patients with myocardial infarction, in those with ST-elevation myocardial infarction (STEMI), showed increased plasma levels of LIGHT compared with healthy controls. In conclusion, platelet-associated LIGHT is involved in adhesion of platelets to endothelium while soluble LIGHT induces a pro-inflammatory state in vascular endothelial cells. LIGHT may thus be implicated in the pathogenesis of atherosclerosis and acute coronary syndrome, as evidenced by serum levels.
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Grundeken MJ, Lu H, Vos N, IJsselmuiden A, van Geuns RJ, Wessely R, Dengler T, La Manna A, Silvain J, Montalescot G, Spaargaren R, Tijssen JGP, de Winter RJ, Wykrzykowska JJ, Amoroso G, Koch KT. One-Year Clinical Outcomes of Patients Presenting With ST-Segment Elevation Myocardial Infarction Caused by Bifurcation Culprit Lesions Treated With the Stentys Self-Apposing Coronary Stent: Results From the APPOSITION III Study. J Invasive Cardiol 2017; 29:253-258. [PMID: 28756418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate outcomes in patients with ST-segment elevation myocardial infarction (STEMI) after treatment with the Stentys self-apposing stent (Stentys SAS; Stentys S.A.) for bifurcation culprit lesions. BACKGROUND The nitinol, self-expanding Stentys was initially developed as a dedicated bifurcation stent. The stent facilitates a provisional strategy by accommodating its diameter to both the proximal and distal reference diameters and offering an opportunity to "disconnect" the interconnectors, opening the stent toward the side branch. METHODS The APPOSITION (a post-market registry to assess the Stentys self-expanding coronary stent in acute myocardial infarction) III study was a prospective, multicenter, international, observational study including STEMI patients undergoing primary percutaneous coronary intervention (PCI) with the Stentys SAS. Clinical endpoints were evaluated and stratified by bifurcation vs non-bifurcation culprit lesions. RESULTS From 965 patients included, a total of 123 (13%) were documented as having a bifurcation lesion. Target-vessel revascularization (TVR) rates were higher in the bifurcation subgroup (16.4% vs 10.0%; P=.04). Although not statistically significant, other endpoints were numerically higher in the bifurcation subgroup: major adverse cardiac events (MACE; 12.7% vs 8.8%), myocardial infarction (MI; 3.4% vs 1.8%), and definite/probable stent thrombosis (ST; 5.8% vs 3.1%). However, when postdilation was performed, clinical endpoints were similar between bifurcation and non-bifurcation lesions: MACE (8.7% vs 8.4%), MI (1.2% vs 0.7%), and definite/probable ST (3.7% vs 2.4%). CONCLUSIONS The use of the Stentys SAS was safe and feasible for the treatment of bifurcation lesions in the setting of primary PCI for STEMI treatment with acceptable 1-year cardiovascular event rates, which improved when postdilation was performed.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Karel T Koch
- Department of Cardiology, Academic Medical Center, Cardiac Catheterization Laboratory, Room B2-125, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands.
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Lu H, Grundeken M, Vos N, IJsselmuiden A, van Geuns RJ, Wessely R, Dengler T, La Manna A, Silvain J, Montalescot G, Spaargaren R, Tijssen J, Amoroso G, de Winter R, Koch K. Clinical outcomes with the STENTYS self-apposing coronary stent in patients presenting with ST-segment elevation myocardial infarction: two-year insights from the APPOSITION III (A Post-Market registry to assess the STENTYS self-exPanding COronary Stent In AcuTe MyocardIal InfarctiON) registry. EUROINTERVENTION 2017; 13:e572-e577. [DOI: 10.4244/eij-d-16-00676] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Luedde M, Krumsdorf U, Zehelein J, Ivandic B, Dengler T, Katus HA, Tiefenbacher C. Treatment of Iatrogenic Femoral Pseudoaneurysm by Ultrasound-Guided Compression Therapy and Thrombin Injection. Angiology 2016; 58:435-9. [PMID: 17875956 DOI: 10.1177/0003319706294608] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Development of an arterial pseudoaneurysm is a common complication following cardiac catheterization. We analyzed data from 6300 patients who received left heart catheterization at our institution. One day after the procedure, approximately 10% of the patients were examined with duplex sonography. In 204 patients (3.0%), a pseudoaneurysm of the femoral artery was diagnosed. All patients underwent compression therapy. Thereby, 159 of the pseudoaneurysms could be treated successfully. The remaining 45 pseudoaneurysms had a maximal diameter of more than 1.5 cm. Forty-two patients underwent ultrasound and biopsy-line—guided thrombin injection without complications. This strategy resulted in a successful occlusion in 41 cases. Pseudoaneurysms smaller than 2 cm can be treated with compression therapy. Larger pseudoaneurysms can be occluded by thrombin injection using ultrasound guidance. Patients with a pseudoaneurysm with a wide “neck” should be treated surgically, because the risk of an arterial occlusion following thrombin injection cannot be excluded.
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Affiliation(s)
- Mark Luedde
- Department of Cardiology, University of Heidelberg, Germany. -heidelberg.de
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Montalescot G, van ’t Hof AW, Bolognese L, Cantor WJ, Cequier A, Chettibi M, Collet JP, Goodman SG, Hammett CJ, Huber K, Janzon M, Lapostolle F, Lassen JF, Licour M, Merkely B, Salhi N, Silvain J, Storey RF, ten Berg JM, Tsatsaris A, Zeymer U, Vicaut E, Hamm CW, Bougherbal R, Bouafia MT, Chettibi M, Nibouche D, Moklati A, Benalia A, Kaid O, Krim M, Hammett C, Garrahy P, Jayasinghe R, Rashford S, Huber K, Neunteufl T, Brussee H, Alber H, Weidinger F, Brunner M, Sipoetz J, Prause G, Baubin M, Sebald D, Cantor W, Vijayaraghavan R, Bata I, Lavoie A, Lassen JF, Ravkilde J, Jensen LO, Christensen AM, Toftegaard M, Köhler D, Montalescot G, Ducrocq G, Danchin N, Henry P, Livarek B, Berthier R, Hovasse T, Garot P, Payot L, Benamer H, Esteve JB, Elhadad S, Teiger E, Bonnet JL, Paganelli F, Cottin Y, Schiele F, Thuaire C, Cayla G, Coste P, Ohlmann P, Cudraz EB, Lantelme P, Perret T, Tron C, De Labriolle A, Aptecar E, Beliard O, Varenne O, El Mahmoud R, Filippi-Codaccioni E, Angoulvant D, Peycher P, Poitrineau O, Tabone X, Ecollan P, Broche C, Lambert Y, Briole N, Beruben A, Porcher N, Auffray JP, Freysz M, Depardieu F, Poubel D, De La Cousaye JE, Bartier JC, Jardel B, Boulanger B, Labourel H, Soulat LC, Lapostolle F, Julie V, Thicoipe M, Capel O, Stibbe O, Carli P, Tazarourte K, Alcouffe F, Aboucaya D, Aubert G, Kierzek G, Cahun-Giraud S, Zeymer U, Hamm C, Dengler T, Prondzinsky R, Biever PM, Schäfer A, Seyfarth M, Lemke B, Werner G, Nef H, Steiger H, Leschke M, Münzel T, Dell Orto MC, Loges C, Schinke M, Koberne F, Reiffen HP, Tiroch K, Wierich D, Kneussel M, Little S, Sauer H, Laufenberg-Feldmann R, Merkely B, Ungi I, Horváth I, Édes I, Mártai I, Bolognese L, Berti S, Chiarella F, Calabria P, Fineschi M, Galvani M, Valgimigli M, Moretti L, Tespili M, Mandó M, Bermano F, Biagioni R, Fabbri A, Ricciardelli A, Petroni MR, Vatteroni UR, Palumbo F, Willems FF, Al Mafragi A, Heestermans TA, Van Eck MJ, Heutz WM, Meppelder H, Jong ARD, Van de Pas H, Fillat ÁC, Tenas MS, Ferrer JM, Peñaranda AS, Ferrer JÁ, Del Blanco BG, Guardiola FM, Ruiz Nodar JM, Romo AÍ, González NV, Nouche RT, De La Llera LD, Hernández García JM, Rivero-Crespo F, Hernández FH, Zamorano Gómez JL, Fárega XJ, Fernández GA, Toboso JL, Carrasco M, Barreiro V, Iglesias Vázquez JA, Montero MDMR, Ortiz FR, Escudero GG, Ingelmo VSB, García AL, Janzon M, Oldgren J, Calais F, Kastberg R, Bergsten PA, Blomberg H, Thörn K, Skoog G, Storey RF, Zaman A, Gerber R, Ryding A, Spence M, Swanson N, Been M, Grosser K, Schofield P, Mackin D, Fell P, Quinn T, Foster T, McManus D, Carson A. Effect of Pre-Hospital Ticagrelor During the First 24 h After Primary Percutaneous Coronary Intervention in Patients With ST-Segment Elevation Myocardial Infarction. JACC Cardiovasc Interv 2016; 9:646-56. [DOI: 10.1016/j.jcin.2015.12.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/30/2015] [Accepted: 12/15/2015] [Indexed: 01/20/2023]
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Koch KT, Grundeken MJ, Vos NS, IJsselmuiden AJ, van Geuns RJ, Wessely R, Dengler T, La Manna A, Silvain J, Montalescot G, Spaargaren R, Tijssen JG, Amoroso G. One-year clinical outcomes of the STENTYS Self-Apposing¨ coronary stent in patients presenting with ST-segment elevation myocardial infarction: results from the APPOSITION III registry. EUROINTERVENTION 2015; 11:264-71. [DOI: 10.4244/eijy15m02_08] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Koch KT, Grundeken MJ, Vos NS, IJsselmuiden AJ, Van Geuns RJ, Wessely R, Dengler T, La Manna A, SILVAIN JOHANNE, Montalescot G, Spaargaren R, Tijssen JG, Amoroso G. TCT-13 Final 2-year Results of the APPOSITION III Study Evaluating the Use of the STENTYS Self-apposing Stent for the Treatment of ST-segment Elevation Myocardial Infarction in the Setting of Primary PCI. J Am Coll Cardiol 2014. [DOI: 10.1016/j.jacc.2014.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Doesch AO, Mueller S, Erbel C, Gleissner CA, Frankenstein L, Hardt S, Ruhparwar A, Ehlermann P, Dengler T, Katus HA. Heart rate reduction for 36 months with ivabradine reduces left ventricular mass in cardiac allograft recipients: a long-term follow-up study. Drug Des Devel Ther 2013; 7:1323-8. [PMID: 24235815 PMCID: PMC3821694 DOI: 10.2147/dddt.s53705] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Background Due to graft denervation, sinus tachycardia is a common problem after heart transplantation, underlining the importance of heart rate control without peripheral effects. However, long-term data regarding the effects of ivabradine, a novel If channel antagonist, are limited in patients after heart transplantation. Methods In this follow-up analysis, the resting heart rate, left ventricular mass indexed to body surface area (LVMI), tolerability, and safety of ivabradine therapy were evaluated at baseline and after 36 months in 30 heart transplant recipients with symptomatic sinus tachycardia versus a matched control group. Results During the study period, ivabradine medication was stopped in three patients (10% of total). Further analysis was based on 27 patients with 36 months of drug intake. The mean patient age was 53.3±11.3 years and mean time after heart transplantation was 5.0±4.8 years. After 36 months, the mean ivabradine dose was 12.0±3.4 mg/day. Resting heart rate was reduced from 91.0±10.7 beats per minute before initiation of ivabradine therapy (ie, baseline) to 81.2±9.8 beats per minute at follow-up (P=0.0006). After 36 months of ivabradine therapy, a statistically significant reduction of LVMI was observed (104.3±22.7 g at baseline versus 93.4±18.4 g at follow-up, P=0.002). Hematologic, renal, and liver function parameters remained stable during ivabradine therapy. Except for a lower mycophenolate mofetil dose at follow-up (P=0.02), no statistically significant changes in immunosuppressive drug dosage or blood levels were detected. No phosphenes were observed during 36 months of ivabradine intake despite active inquiry. Conclusion In line with previously published 12-month data, heart rate reduction with ivabradine remained effective and safe in chronic stable patients after heart transplantation, and also during 36-month long-term follow-up. Further, a significant reduction of LVMI was observed only during ivabradine therapy. Therefore, ivabradine may have a sustained long-term beneficial effect with regard to left ventricular remodeling in heart transplant patients.
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Affiliation(s)
- Andreas O Doesch
- Department of Cardiology, University of Heidelberg, Heidelberg, Germany
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Bara C, Dengler T, Hack M, Ladenburger S, Lehmkuhl H. A 1-Year Randomized Controlled Study of Everolimus Versus Mycophenolate Mofetil With Reduced-Dose Cyclosporine in Maintenance Heart Transplant Recipients. Transplant Proc 2013; 45:2387-92. [DOI: 10.1016/j.transproceed.2013.03.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 03/06/2013] [Indexed: 01/05/2023]
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Kobashigawa J, Ross H, Bara C, Delgado JF, Dengler T, Lehmkuhl HB, Wang SS, Dong G, Witte S, Junge G, Potena L. Everolimus is associated with a reduced incidence of cytomegalovirus infection following de novo cardiac transplantation. Transpl Infect Dis 2012; 15:150-62. [PMID: 23013440 DOI: 10.1111/tid.12007] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 04/05/2012] [Accepted: 05/27/2012] [Indexed: 01/01/2023]
Abstract
BACKGROUND Cytomegalovirus (CMV) causes several complications following cardiac transplantation including cardiac allograft vasculopathy. Previous studies suggested that immunosuppressive treatment based on everolimus might reduce CMV infection. Aiming to better characterize the action of everolimus on CMV and its interplay with patient/recipient serology and anti-CMV prophylaxis, we analyzed data from 3 large randomized studies comparing various everolimus regimens with azathioprine (AZA)- and mycophenolate mofetil (MMF)-based regimens. METHODS CMV data were analyzed from 1009 patients in 3 trials of de novo cardiac transplant recipients who were randomized to everolimus 1.5 mg/day, everolimus 3 mg/day, or AZA 1-3 mg/kg/day, plus standard-dose (SD) cyclosporine (CsA; study B253, n = 634); everolimus 1.5 mg/day plus SD- or reduced-dose (RD)-CsA (study A2403, n = 199); and everolimus 1.5 mg/day plus RD-CsA or MMF plus SD-CsA (study A2411, n = 176). RESULTS In study B253, patients allocated to everolimus experienced almost a 70% reduction in odds of experiencing CMV infection compared with AZA (P < 0.001). In study A2403, CMV infection was low in both everolimus arms, irrespective of CsA dosing, and in study A2411, patients allocated to everolimus experienced an 80% reduction in odds of experiencing CMV infection, compared with MMF (P < 0.001). CMV syndrome/disease was rare and less frequent in everolimus-treated patients. Subgroup analyses showed that the benefit everolimus provides, in terms of CMV events, is retained in CMV-naïve recipients and is independent of anti-CMV prophylaxis or preemptive approaches. CONCLUSIONS Everolimus is associated with a lower incidence of CMV infection compared with AZA and MMF, which combined with its immunosuppressive efficacy and antiproliferative effects may positively impact long-term outcomes.
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Affiliation(s)
- J Kobashigawa
- Cedars-Sinai Heart Institute, Los Angeles, California, USA
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Kristen A, Sack FU, Dösch A, Schnabel P, Katus H, Dengler T. Das verflixte 7. Jahr? Erfreulicher Langzeitverlauf nach Herztransplantation bei kardialer Transthyretin-Amyloidose. Aktuel Kardiol 2012. [DOI: 10.1055/s-0032-1324822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- A. Kristen
- Medizinische Universitätsklinik Heidelberg, Abteilung für Innere Medizin III (Kardiologie, Angiologie, Pneumologie)
| | - F.-U. Sack
- Chirurgische Universitätsklinik Heidelberg, Abteilung Herzchirurgie
| | - A. Dösch
- Medizinische Universitätsklinik Heidelberg, Abteilung für Innere Medizin III (Kardiologie, Angiologie, Pneumologie)
| | - P. Schnabel
- Institut für Pathologie der Universität Heidelberg
| | - H. Katus
- Medizinische Universitätsklinik Heidelberg, Abteilung für Innere Medizin III (Kardiologie, Angiologie, Pneumologie)
| | - T. Dengler
- Medizinische Universitätsklinik Heidelberg, Abteilung für Innere Medizin III (Kardiologie, Angiologie, Pneumologie)
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Hauck-Dlimi B, Hammon K, Eckstein R, Ott S, Zimmermann R, Dengler T, Ringwald J. Human platelet antigen genotypes in Turkish and Caucasian blood donors in Germany. ACTA ACUST UNITED AC 2012; 80:214-8. [DOI: 10.1111/j.1399-0039.2012.01908.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 04/13/2012] [Accepted: 05/16/2012] [Indexed: 11/28/2022]
Affiliation(s)
- B. Hauck-Dlimi
- Department of Transfusion Medicine and Hemostaseology; University Hospital Erlangen; Erlangen; Germany
| | - K. Hammon
- Department of Transfusion Medicine and Hemostaseology; University Hospital Erlangen; Erlangen; Germany
| | - R. Eckstein
- Department of Transfusion Medicine and Hemostaseology; University Hospital Erlangen; Erlangen; Germany
| | - S. Ott
- Department of Transfusion Medicine and Hemostaseology; University Hospital Erlangen; Erlangen; Germany
| | - R. Zimmermann
- Department of Transfusion Medicine and Hemostaseology; University Hospital Erlangen; Erlangen; Germany
| | - T. Dengler
- Institute for Transfusion Medicine and Immunohematology; Red Cross Blood donation service Baden-Wuerttemberg-Hessen; Baden-Baden; Germany
| | - J. Ringwald
- Department of Transfusion Medicine and Hemostaseology; University Hospital Erlangen; Erlangen; Germany
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Reiss N, Kristen A, Schoenland S, Hegenbart U, Buss S, Sack FU, Schnabel P, Roecken C, Dengler T, Ho A, Ruhparwar A, Karck M, Katus H. 443 Is Heart Transplantation a Reasonable Concept in Patients with Severe Cardiac Amyloidosis? J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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16
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Hauck B, Philipp A, Eckstein R, Ott S, Zimmermann R, Dengler T, Zingsem J. Human neutrophil alloantigen genotype frequencies among blood donors with Turkish and German descent. ACTA ACUST UNITED AC 2012; 78:416-20. [PMID: 22077622 DOI: 10.1111/j.1399-0039.2011.01779.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Antibodies against the human neutrophil antigens (HNA) are able to stimulate transfusion reactions, autoimmune and neonatal neutropenia. The aim of this study was to determine the HNA allele frequencies in the largest ethnic minority group in Germany in comparison with the German population for predicting the risk of alloimmunization and associated transfusion reactions, as well as the risk of developing neonatal neutropenia for the newborn of racial mixed couples. However, there exists no data about HNA genotype distribution in Turkish population. DNA was isolated from blood samples of 119 German and 118 Turkish blood donors and typed them for HNA-1, -3, -4, and -5 by using a commercial polymerase chain reaction kit with sequence-specific primers (SSP-PCR) and compared the HNA genotype distribution of both groups. In German blood donors, the gene frequencies for HNA-1a and HNA-1b were 0.391 and 0.601, for HNA-3a and -3b, 0.744 and 0.256, for HNA-4a and -4b, 0.908 and 0.092, and for HNA-5a and -5bw, 0.731 and 0.269. In Turkish blood donors, we observed 0.420/0.564, 0.737/0.263, 0.881/0.119, and 0.754/0.246 for HNA-1a/1b, -3a/3b, -4a/4b, and -5a/5bw. No statistic significant difference between genotypes in these populations was observed. This study is the first to report HNA gene frequencies in a Turkish population. It showed that there is no difference of HNA genotype in blood donors with Turkish descent in comparison with German blood donors. The alternating transfusion of blood and blood components is no increased risk for developing alloantibodies against HNA antigens. In pregnancy of mixed couples no special screening programs for HNA are necessary.
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Affiliation(s)
- B Hauck
- Department of Transfusion Medicine and Hemostaseology, University Hospital Erlangen, Erlangen, Germany.
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17
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Nguyen XD, Dengler T, Schulz-Linkholt M, Klüter H. A novel tool for high-throughput screening of granulocyte-specific antibodies using the automated flow cytometric granulocyte immunofluorescence test (Flow-GIFT). ScientificWorldJournal 2011; 11:302-9. [PMID: 21298221 PMCID: PMC5719999 DOI: 10.1100/tsw.2011.20] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Transfusion-related acute lung injury (TRALI) is a severe complication related with blood transfusion. TRALI has usually been associated with antibodies against leukocytes. The flow cytometric granulocyte immunofluorescence test (Flow-GIFT) has been introduced for routine use when investigating patients and healthy blood donors. Here we describe a novel tool in the automation of the Flow-GIFT that enables a rapid screening of blood donations. We analyzed 440 sera from healthy female blood donors for the presence of granulocyte antibodies. As positive controls, 12 sera with known antibodies against anti-HNA-1a, -b, -2a; and -3a were additionally investigated. Whole-blood samples from HNA-typed donors were collected and the test cells isolated using cell sedimentation in a Ficoll density gradient. Subsequently, leukocytes were incubated with the respective serum and binding of antibodies was detected using FITC-conjugated antihuman antibody. 7-AAD was used to exclude dead cells. Pipetting steps were automated using the Biomek NXp Multichannel Automation Workstation. All samples were prepared in the 96-deep well plates and analyzed by flow cytometry. The standard granulocyte immunofluorescence test (GIFT) and granulocyte agglutination test (GAT) were also performed as reference methods. Sixteen sera were positive in the automated Flow-GIFT, while five of these sera were negative in the standard GIFT (anti—HNA 3a, n = 3; anti—HNA-1b, n = 1) and GAT (anti—HNA-2a, n = 1). The automated Flow-GIFT was able to detect all granulocyte antibodies, which could be only detected in GIFT in combination with GAT. In serial dilution tests, the automated Flow-GIFT detected the antibodies at higher dilutions than the reference methods GIFT and GAT. The Flow-GIFT proved to be feasible for automation. This novel high-throughput system allows an effective antigranulocyte antibody detection in a large donor population in order to prevent TRALI due to transfusion of blood products.
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Affiliation(s)
- Xuan Duc Nguyen
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University Heidelberg, German Red-Cross Blood Service of Baden-Württemberg - Hessen, Germany.
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Costanzo MR, Dipchand A, Starling R, Anderson A, Chan M, Desai S, Fedson S, Fisher P, Gonzales-Stawinski G, Martinelli L, McGiffin D, Smith J, Taylor D, Meiser B, Webber S, Baran D, Carboni M, Dengler T, Feldman D, Frigerio M, Kfoury A, Kim D, Kobashigawa J, Shullo M, Stehlik J, Teuteberg J, Uber P, Zuckermann A, Hunt S, Burch M, Bhat G, Canter C, Chinnock R, Crespo-Leiro M, Delgado R, Dobbels F, Grady K, Kao W, Lamour J, Parry G, Patel J, Pini D, Towbin J, Wolfel G, Delgado D, Eisen H, Goldberg L, Hosenpud J, Johnson M, Keogh A, Lewis C, O'Connell J, Rogers J, Ross H, Russell S, Vanhaecke J, Russell S, Vanhaecke J. The International Society of Heart and Lung Transplantation Guidelines for the care of heart transplant recipients. J Heart Lung Transplant 2010; 29:914-56. [PMID: 20643330 DOI: 10.1016/j.healun.2010.05.034] [Citation(s) in RCA: 1134] [Impact Index Per Article: 81.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2010] [Accepted: 05/31/2010] [Indexed: 12/26/2022] Open
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Wellnhofer E, Stypmann J, Bara CL, Stadlbauer T, Heidt MC, Kreider-Stempfle HU, Sohn HY, Zeh W, Comberg T, Eckert S, Dengler T, Ensminger SM, Hiemann NE. Angiographic assessment of cardiac allograft vasculopathy: results of a Consensus Conference of the Task Force for Thoracic Organ Transplantation of the German Cardiac Society. Transpl Int 2010; 23:1094-104. [DOI: 10.1111/j.1432-2277.2010.01096.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lehmkuhl H, Dengler T, Junge G, Scheidl S, Hetzer R. Excellent efficacy with concentration-controlled everolimus in preventing biopsy-proven acute rejection following cardiac transplantation. Thorac Cardiovasc Surg 2010. [DOI: 10.1055/s-0029-1247080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Lehmkuhl H, Dengler T, Maccherini G, Scheidl S, Hetzer R. Major cardiac events (MACE) and their impact on hospitalization days in de novo heart transplant recipients on everolimus versus MMF. Thorac Cardiovasc Surg 2010. [DOI: 10.1055/s-0029-1247079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Lehmkuhl H, Bara C, Hirt S, Dengler T, Schwende H, Scheidl S, Haverich A, Hetzer R, Barten M. Incidences of incisional complications after de novo cardiac transplantation in AZA-, MMF- or everolimus-based regimens: a cross-study analysis on 1008 patients. Thorac Cardiovasc Surg 2010. [DOI: 10.1055/s-0029-1247078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Viganò M, Dengler T, Mattei MF, Poncelet A, Vanhaecke J, Vermes E, Kleinloog R, Li Y, Gezahegen Y, Delgado JF. Lower incidence of cytomegalovirus infection with everolimus versus mycophenolate mofetil in de novo cardiac transplant recipients: a randomized, multicenter study. Transpl Infect Dis 2009; 12:23-30. [PMID: 19744284 DOI: 10.1111/j.1399-3062.2009.00448.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cytomegalovirus (CMV) is a major cause of infectious complications following cardiac transplantation, severely affecting short- and long-term outcomes. A 12-month, multicenter, randomized, open-label study in de novo cardiac transplant patients was undertaken to compare the efficacy, renal function, and safety of everolimus plus reduced cyclosporine versus mycophenolate mofetil (MMF) plus standard cyclosporine (ClinicalTrials.gov NCT00150046). CMV-specific data was prospectively collected on infections, laboratory evidence, CMV syndrome, and CMV disease. In total, 176 patients were randomized (everolimus 92; MMF 84). Use of CMV prophylaxis was similar between groups (everolimus 20.8%; MMF 24.0%). Patients in the everolimus arm had a significantly lower incidence of any CMV event (8.8% versus 32.5% with MMF, P<0.001), CMV infection as an adverse event (4.4% versus 16.9%, P=0.011), laboratory evidence of CMV (antigenemia 7.7% versus 27.7%, P<0.001; polymerase chain reaction assay 2.2% versus 12.0%, P=0.015), and CMV syndrome (1.1% versus 8.4%, P=0.028). In the donor (D)+/recipient (R)+and D-/R+ subgroups, even after adjusting for use of prophylaxis, the CMV event rate remained significantly lower with everolimus than with MMF (P=0.0015 and P=0.0381, respectively). In conclusion, de novo cardiac transplant recipients experienced lower rates of CMV infection, CMV syndrome, or organ involvement on an everolimus-based immunosuppressant regimen compared with MMF.
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Affiliation(s)
- M Viganò
- Department of Cardiac Surgery, Policlinico S. Matteo - IRCCS Università degli Studi di Pavia, Pavia, Italy
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da Silva Cardoso M, Koerner K, Epple S, Dengler T, Kerowgan M, Kubanek B. RIBA Performance in the Routine Diagnostic of HCV. Transfus Med Hemother 2009. [DOI: 10.1159/000223201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Dengler T, Kellner S, Fürst G. Erfahrungen mit einer einfachen Mikrotiterplatten-Technik für das GPT-«Screening» bei Blutspendern. Transfus Med Hemother 2009. [DOI: 10.1159/000222587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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26
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Erbel C, Hakimi M, Wambsganss N, Böckler D, Dengler T. Expression von IL-17 und assoziierten Zytokinen (IL-21, IL-23) in humanen Karotidenplaques in Abhängigkeit von kardiovaskulären Risikofaktoren und der medikamentösen Therapie. DIABETOL STOFFWECHS 2009. [DOI: 10.1055/s-0029-1221815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kobashigawa J, Eisen H, Valantine-von Kaeppeler H, Dengler T, Potena L, Wang SS, Ross H, Delgado J, Starling R, Bara C. 300: A Low Incidence of CMV Infections in De Novo Cardiac Transplant Recipients in the Presence of Everolimus-Based Immunosuppressive Regimens. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Lehmkuhl H, Ross H, Arizon J, Wang SS, Livi U, Dengler T, Pellegrini C, Zuckermann A, Dong G, Korom S, Bara C. 299: Comparability of Pattern of Occurrence of Pericardial Effusions between Everolimus- and MMF-Based Regimen in De Novo Cardiac Transplant Recipients. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Steen H, Merten C, Refle S, Klingenberg R, Dengler T, Giannitsis E, Katus HA. Prevalence of different gadolinium enhancement patterns in patients after heart transplantation. J Am Coll Cardiol 2008; 52:1160-7. [PMID: 18804744 DOI: 10.1016/j.jacc.2008.05.059] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 03/03/2008] [Accepted: 05/21/2008] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Transplant coronary artery disease (TCAD) limits long-term survival after heart transplantation (HTX). We hypothesized that contrast-enhanced magnetic resonance imaging (CE-MRI) detects chronic TCAD-related myocardial infarctions (MIs), even in patients with angiographically classified mild TCAD. BACKGROUND Coronary angiography underestimates the TCAD-degree, subsequently missing occluded small coronary arteries and resulting MI. CE-MRI as a noninvasive imaging technique identifies infarct-typical MI and myocardial fibrosis. METHODS CE-MRI (gadolinium: 0.2 mmol/kg/bw) was performed in 53 HTX patients on a 1.5-T MRI scanner (Philips, Best, the Netherlands). Infarct-typical CE-MRI areas were classified as: I=<or=25%, II=25% to 50%, III=50% to 75% and IV=>or=75%. Infarct-atypical forms were divided into diffuse, spotted, intramural, and infero-septal. Coronary angiography results were reviewed qualitatively with the TCAD score (TCAD I=mild evidence; II=30% to 75%, III=>or=75% stenosis). Groups were compared with analysis of variance (statistically significant p values<or=0.05). RESULTS Infarct-typical CE-MRI was already present in TCAD I+II, increased significantly between groups (I=23%, II=33%, III=84%, p<0.05), and involved only single coronary territories in TCAD I but multiple vessels in TCAD II+III. Infarct-atypical CE-MRI was equally distributed across all TCAD stages (I=50% vs. II=58% vs. III=42%, p=NS) without relation to a coronary territory. Patients with only infarct-atypical CE-MRI were associated with significantly better left ventricular function compared with patients with infarct-typical or combined CE-MRI patterns (ejection fraction=66+/-6% vs. 45+/-16% or 60+/-13%; end-diastolic volume=139+/-32 ml vs. 148+/-27 ml or 164+/-43 ml; end-systolic volume=47+/-15 ml vs. 81+/-27 ml or 69+/-38 ml, p<or=0.05). CONCLUSIONS CE-MRI allows identification of silent MI in apparently event-free HTX patients and is able to disclose myocardial fibrosis already in patients with absent or mild angiographic TCAD. CE-MRI might be helpful to establish an earlier TCAD diagnosis and to intensify medical treatment. Future studies are necessary to test prognostic implications associated with CE-MRI patterns.
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Affiliation(s)
- Henning Steen
- Abteilung Innere Medizin III, Medizinische Klinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
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Merten C, Refle S, Lehrke S, Lossnitzer D, Dengler T, Katus HA, Giannitsis E, Steen H. 1013 Impaired left ventricular function at rest and stress in patients with severe coronary artery disease after heart transplantation detected by dobutamine stress magnetic resonance imaging. J Cardiovasc Magn Reson 2008. [DOI: 10.1186/1532-429x-10-s1-a138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Hourfar MK, Walch LA, Geusendam G, Dengler T, Janetzko K, Gubbe K, Frank K, Karl A, Löhr M, Sireis W, Seifried E, Schmidt M. Sensitivity and specificity of Anti-HBc screening assays--which assay is best for blood donor screening? Int J Lab Hematol 2008; 31:649-56. [PMID: 18673399 DOI: 10.1111/j.1751-553x.2008.01092.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Compared to HIV and hepatitis C virus, the residual infectious risk of hepatitis B virus (HBV) posed by blood products is about 10 times higher. In addition to HBsAg testing, screening for anti-HBc was recommended by the German Advisory Committee Blood in March 2005. Prevalence of anti-HBc in German blood donors was investigated at five test sites located in different geographic regions. In total, 12,000 blood donors were screened for anti-HBc by PRISM HBcore, and a statistically representative number of these were tested with Abbott Murex anti-HBc total, bioMérieux Hepanostika anti-HBc uniform, Bio-Rad Monolisa anti-HBc PLUS and Dade Behring Enzygnost anti-HBc. Anti-HBc repeat reactive samples were tested for anti-HBs, anti-HBe and HBV DNA by individual donation NAT. The mean prevalence of anti-HBc was 1.75% in donors that had not been tested for anti-HBc in the past. The percentage of anti-HBs in anti-HBc repeat reactive donors was 93.7%. Samples that were additionally reactive for anti-HBe were anti-HBc reactive in all tested assays. The sample to cut-off (S/Co) values for anti-HBc were lower (competitive assays) in samples that were also positive for anti-HBe, when compared to samples that were only anti-HBc reactive. Most commercially available anti-HBc assays provide sufficient sensitivity for routine screening purposes, and lacking specificity is no longer a serious issue for most of them. Assay differences were recognized for samples that were anti-HBc only reactive. The overall loss of 1.75% of positive testing donors can be significantly reduced to 0.45% by implementation of re-entry procedures for donors with an anti-HBs titre of over 100 IU/l and negative by sensitive ID-NAT.
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Affiliation(s)
- M K Hourfar
- Institute of Transfusion Medicine and Immunohematology, German Red Cross, Johann Wolfgang Goethe University, Frankfurt, Germany
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Lehmkuhl H, Hummel M, Kobashigawa J, Ladenburger S, Rothenburger M, Sack F, Dengler T, Hetzer R. Enteric-Coated Mycophenolate-Sodium in Heart Transplantation: Efficacy, Safety, and Pharmacokinetic Compared With Mycophenolate Mofetil. Transplant Proc 2008; 40:953-5. [DOI: 10.1016/j.transproceed.2008.03.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Vermes E, Almenar L, Viganò M, MacCherini M, Poncelet A, Mattei MF, Dengler T, Delgado J, Vanhaecke J, Hexham M, Mange K. 465: More Adverse Events Leading to Drug Dose Adjustment/Interruption in the Presence of MMF- vs Everolimus-Based Immunosuppression in De Novo Heart Transplant Patients. J Heart Lung Transplant 2008. [DOI: 10.1016/j.healun.2007.11.478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Dengler T, Viganò M, Magelli C, Guillemain R, Varnous S, Gerosa G, Poncelet A, Vanhaecke J, Li Y, Gezahegen Y. 16: Concentration-Controlled Everolimus Versus MMF in De Novo Heart Transplant Patients: Incidence of CMV Infection at 12 Months Post-Transplant in a Randomized Trial. J Heart Lung Transplant 2008. [DOI: 10.1016/j.healun.2007.11.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Sack FU, Kristen A, Goldschmidt H, Schnabel PA, Dengler T, Koch A, Karck M. Treatment options for severe cardiac amyloidosis: heart transplantation combined with chemotherapy and stem cell transplantation for patients with AL-amyloidosis and heart and liver transplantation for patients with ATTR-amyloidosis☆. Eur J Cardiothorac Surg 2008; 33:257-62. [DOI: 10.1016/j.ejcts.2007.10.025] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2007] [Revised: 10/11/2007] [Accepted: 10/16/2007] [Indexed: 11/15/2022] Open
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Sack FU, Dengler T, Lichtenberg A, Tochtermann U, Koch A, Verch M, Karck M. High urgency transplantation as an alternative for assist devices in acute heart failure patients. Thorac Cardiovasc Surg 2008. [DOI: 10.1055/s-2008-1038001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sack FU, Ofenloch A, Schnabel P, Dengler T, Koch A, Tochtermann U, Lichtenberg A, Karck M. The role of early innate immunology in heart transplantation: the expression of heat shock protein in relation to the postoperative course following HTX. Thorac Cardiovasc Surg 2008. [DOI: 10.1055/s-2008-1037726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Krause U, Harter C, Seckinger A, Wolf D, Reinhard A, Bea F, Dengler T, Hardt S, Ho A, Katus HA, Kuecherer H, Hansen A. Intravenous delivery of autologous mesenchymal stem cells limits infarct size and improves left ventricular function in the infarcted porcine heart. Stem Cells Dev 2007; 16:31-7. [PMID: 17348804 DOI: 10.1089/scd.2006.0089] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Systemic delivery of bone marrow-derived mesenchymal stem cells (MSCs) is a noninvasive approach for myocardial repair. We aimed to test this strategy in a pig model of myocardial infarction. Pigs (n = 8) received autologous MSCs (1 x 10(6)/kg body weight) labeled with fluorescent dye 48 h post proximal left anterior descending artery (LAD) occlusion. Hemodyamics, infarct size, and myocardial function were assessed at baseline and after 1 month. Morphologic analysis revealed that labeled MSCs migrated in the peri-infarct region, resulting in smaller infarct size (32 +/- 7 vs. 19 +/- 7%, p = 0.01), higher fractional area shortening (23 +/- 3 vs. 34.0 +/- 7%, p = 0.001), lower left ventricular end diastolic pressure (18.7 +/- 5 vs. 10.2 +/- 4 mmHg, p = 0.02) and higher +dp/dt (4,570 +/- 540 vs. 6,742 +/- 700 mmHg/s, p = 0.03) during inotropic stimulation. Systemic intravenous delivery of MSCs to pigs limits myocardial infarct size and is an attractive approach for tissue repair.
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Affiliation(s)
- Ulf Krause
- Department of Hematology, University of Heidelberg, Heidelberg, Germany
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Sommerer C, Konstandin M, Dengler T, Schmidt J, Meuer S, Zeier M, Giese T. Pharmacodynamic Monitoring of Cyclosporine A in Renal Allograft Recipients Shows a Quantitative Relationship Between Immunosuppression and the Occurrence of Recurrent Infections and Malignancies. Transplantation 2006; 82:1280-5. [PMID: 17130775 DOI: 10.1097/01.tp.0000243358.75863.57] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND At present it is unclear which dose and consecutive blood levels of cyclosporine A (CsA) are optimal with respect to immunosuppressive efficacy and drug specific side effects at the level of individual patients. Several pharmacodynamic measures of CsA effects have been proposed, but have not become clinical routine yet. Besides the lack of practicability, the biological relevance of these assays has not been determined so far. METHODS Residual expression of nuclear factor of activated T-cells (NFAT)-regulated genes two hours after drug intake was used as molecular pharmacodynamic marker to assess CsA effects on lymphocytes and correlated with the frequency of recurrent infections and malignancies in patients with five or more years of follow-up posttransplantation. RESULTS Recurrent infectious complications were observed in 44% and malignancies in 20% of the 133 patients studied. Patients with a strong suppression of NFAT-regulated genes by CsA--as judged by a residual level of transcription of less than 15% after drug intake--develop more frequent infections (53% vs. 29%; P = 0.005) and malignancies (22% vs. 4%; P = 0.002). The lack of correlation between the incidence of these complications and CsA blood concentration might point to the interindividual differences in the sensitivity towards calcineurin inhibition. CONCLUSION The data presented here reveal a clear relation between the frequency of infectious and malignant complications and the degree of suppression of NFAT-regulated genes by CsA in transplanted patients. Therefore, pharmacodynamic monitoring of CsA efficacy in transplanted patients might be a useful tool to adjust immunosuppressive therapy in individual patients.
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Affiliation(s)
- Claudia Sommerer
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany.
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Jessup M, Banner N, Brozena S, Campana C, Costard-Jäckle A, Dengler T, Hunt S, Metra M, Rahmel A, Renlund D, Ross H, Warner Stevenson L. Optimal Pharmacologic and Non-pharmacologic Management of Cardiac Transplant Candidates: Approaches to Be Considered Prior to Transplant Evaluation: International Society for Heart and Lung Transplantation Guidelines for the Care of Cardiac Transplant Candidates—2006. J Heart Lung Transplant 2006; 25:1003-23. [PMID: 16962463 DOI: 10.1016/j.healun.2006.06.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2006] [Revised: 05/27/2006] [Accepted: 06/16/2006] [Indexed: 10/24/2022] Open
Affiliation(s)
- Mariell Jessup
- International Society for Heart and Lung Transplantation, Addison, Texas 75001, USA
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Szabó G, Stumpf NA, Hagl S, Dengler T. Direct immunosuppressive properties of poly (ADP-Ribose) polymerase inhibition contribute to increased survival after cardiac transplantation. Thorac Cardiovasc Surg 2006. [DOI: 10.1055/s-2006-925744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Konstandin M, Schoels M, Dengler T, Meuer S, Giese T. F.149. Pharmacodynamic Monitoring of Cyclosporine By Suppression of Nfat Regulated Gene Expression in Peripheral Blood Cells of Cardiac Allograft Recipients On Standard and Reduced Dosage Regimens Allows Prediction of Infections. Clin Immunol 2006. [DOI: 10.1016/j.clim.2006.04.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Singer R, Mehrabi A, Schemmer P, Kashfi A, Hegenbart U, Goldschmidt H, Schönland S, Kristen A, Dengler T, Müller-Schilling M, Sauer P, Dogan A, Hund E, Helmke B, Schnabel P, Altland K, Linke R, Friess H, Schmidt J, Büchler MW, Kraus TW. Indications for Liver Transplantation in Patients with Amyloidosis: A Single-Center Experience with 11 Cases. Transplantation 2005; 80:S156-9. [PMID: 16286896 DOI: 10.1097/01.tp.0000186910.09213.bf] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Familial amyloidotic polyneuropathy (FAP) is an inherited disorder with the systemic deposition of amyloid fibrils containing mutant transthyretin variants. The mutant form of transthyretin amyloidosis is produced mainly in the liver. Successful liver transplantation (LTx) could eliminate the source of the variant transthyretin molecule, and is now the only known curative treatment. The aim of this study is to evaluate the results of LTx for FAP at the University of Heidelberg. Eleven patients who underwent LTx between 1985 and 2004 with the diagnosis of FAP were evaluated. Of 11 patients, seven (64%) were male and four (36%) were female. The mean age was 49.5 years (range 27-70). Met 30 (n=5) was the most common type of amyloidosis followed by Arg 50 (n=3), Val 107 (n=2), and Phe 33 (n=1). All of the patients were selected for LTx and Domino LTx was performed in six patients. The majority (80%) of the patients with type Met 30 amyloidosis are alive, whereas in other types of amyloidosis only 33% are living. This finding emphasizes better prognosis of Met 30 variant of FAP in comparison to other variants such as Arg 50, Val 107, and Phe 33. After LTx, improvement of clinical symptoms (completely or partially) was observed in six patients (55%). In conclusion, LTx is considered as the only therapeutic alternative in patients with amyloidosis accompanied by hepatic synthesis of the amyloid protein. The most important risk factors for LTx can be predicted by assessing the nutritional condition of the patient, the duration of the disease, and the amyloid variant. Therefore, precise diagnostic measures are required before listing a patient for LTx. Domino LTx is an acceptable form of LTx that can preserve the pool of organ donors. In order to stop the progression of FAP, LTx would be justified in a subgroup of patients with amyloidosis. Based on our results, we support the idea that the effectiveness of extended preoperative period before LTx or the transplantation of other transthyretin variants other than Met 30 is questionable.
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Affiliation(s)
- Reinhard Singer
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
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Nikendei C, Schilling T, Nawroth P, Hensel M, Ho AD, Schwenger V, Zeier M, Herzog W, Schellberg D, Katus HA, Dengler T, Stremmel W, Müller M, Jünger J. Integriertes Skills-Lab-Konzept für die studentische Ausbildung in der Inneren Medizin. Dtsch Med Wochenschr 2005; 130:1133-8. [PMID: 15856395 DOI: 10.1055/s-2005-866799] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND OBJECTIVE An amendment to the German medical curriculum in April 2002 will place basic practical skills at the centre of medical training. We report here on the implementation and evaluation of an obligatory, tutor-guided, and integrated skills laboratory concept in the field of internal medicine. METHODS To test the effectiveness of a skills laboratory training on OSCE performance a pilot study was carried out. The experimental group, of 77 students, participated in seven sessions of communication training, skills laboratory training, and bedside teaching, each lasting one and a half hours. The control group of 66 students had as many sessions but was only offered bedside-teaching. The evaluation of acceptance of skills' training as well as the related increase in individual competence is on-going (summer term 2004: n = 176 students). RESULTS The integrated skills laboratory concept was rated at 3.5 (SD = 1.2) on a 5-point scale and was acknowledged as practice-oriented (M = 4.2; SD = 1.0) and relevant for doctors' everyday lives (M = 3.6; SD = 1.1). Increased levels of competence according to individual self-evaluations proved to be highly significant (p<.001), and results of the pilot study showed that the experimental group had a significantly better OSCE performance than the control group (p<.001). CONCLUSION This pilot study shows that curriculum changes promoting basic clinical skills are effective and lead to an improved practical education of tomorrow's physicians. The integrated skills laboratory concept is well accepted and leads to a relevant increase in competence in the practice of internal medical. The presented skills laboratory concept in internal medicine is proving to be a viable and efficient learning tool.
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Affiliation(s)
- C Nikendei
- Abteilung für Allgemeine Klinische und Psychosomatische Medizin, Medizinische Universitätsklinik Heidelberg.
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Koch A, Remppis A, Dengler T, Hagl S, Sack F. The Eurotransplant High Urgency heart transplantation program: an option for patients in acute heart failure? Thorac Cardiovasc Surg 2005. [DOI: 10.1055/s-2005-861917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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VandenBroeke T, Dumont LJ, Hunter S, Nixon J, Murphy S, Roger J, Herschel L, AuBuchon JP, Gulliksson H, Dengler T, Hornsey V, Prowse C. Platelet storage solution effects on the accuracy of laboratory tests for platelet function: a multi-laboratory study. Vox Sang 2004; 86:183-8. [PMID: 15078253 DOI: 10.1111/j.0042-9007.2004.00412.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Extent of shape change (ESC) and hypotonic shock response (HSR) have been widely used to characterize the in vitro function of platelets and have been shown to correlate with in vivo viability. These assays have been routinely performed using platelet-poor plasma (PPP) as the test sample diluent. Because of the increasing popularity of storing platelets in synthetic media, it is important to understand the effects of using these synthetic media as test diluents for ESC and HSR measurements. The objective of this study was to determine the effect of using platelet storage solutions vs. plasma for the in vitro testing of ESC and HSR. MATERIALS AND METHODS Six laboratories participated in this study. Platelets were prepared by apheresis, the platelet-rich plasma (PRP) method, or derived from buffy-coats. Each platelet preparation was divided, half being stored in plasma and the other half in storage solution. ESC and HSR testing were performed in duplicate on days 1 and 5, using each of three diluents: autologous plasma; fresh-frozen plasma; or storage solution. RESULTS For both ESC and HSR, dilutions made in each of the three diluents yielded significantly different results. Dilutions made in storage solutions were more than 30% lower for ESC and HSR than those made in autologous plasma (P < 0.0001). Dilutions made in thawed fresh-frozen plasma were more than 16% lower for ESC and HSR than those made in liquid autologous plasma (P < 0.0005). CONCLUSIONS ESC and HSR test results are significantly affected by the test diluent. Platelets should be diluted in plasma (preferably autologous) for the in vitro testing of ESC and HSR, regardless of the media in which they are stored.
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Giese T, Zeier M, Schemmer P, Uhl W, Schoels M, Dengler T, Buechler M, Meuer S. Monitoring of NFAT-regulated gene expression in the peripheral blood of allograft recipients: a novel perspective toward individually optimized drug doses of cyclosporine A. Transplantation 2004; 77:339-44. [PMID: 14966405 DOI: 10.1097/01.tp.0000109260.00094.01] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND With the introduction of cyclosporine A (CsA), long-term allograft function has significantly improved. Problems related to limited therapeutic margins and CsA toxicity remain unsolved. Until now there have been no reliable, practical markers to measure the biologic activity of CsA in vivo. METHODS Expression of NFAT (nuclear factor of activated T cells)-regulated genes (interleukin 2, interferon-gamma, and granulocyte-macrophage colony-stimulating factor) in phorbol myristate acetate/ionomycin-stimulated peripheral blood from healthy volunteers (n=34) and from stable renal (n=25), cardiac (n=26), and liver (n=14) transplant recipients receiving CsA therapy was measured by quantitative real-time reverse transcriptase-polymerase chain reaction before and 2 hr after drug intake. Gene expression and CsA plasma levels were correlated. RESULTS Two hours after oral CsA ingestion, the mean suppression of induced interleukin 2, interferon-gamma, and granulocyte-macrophage colony-stimulating factor gene expression was 85%. The individual decline of NFAT-regulated gene expression and the total drug exposure at this time point were closely related. Six hours after oral CsA uptake, gene expression levels reached predose values and subsequently increased further in some patients (rebound effect). CONCLUSION Quantitative measurement of the inhibition of NFAT-regulated gene expression 2 hr after CsA intake represents a novel approach to assess the biologic effectiveness of CsA therapy and has the potential to enable individualized immunosuppressive regimens.
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Affiliation(s)
- Thomas Giese
- Department of Immunology, University of Heidelberg, Heidelberg, Germany.
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Abstract
The recent increase in the elderly population, current health trends and awareness of age-related changes in the male endocrine system, have led to discussions about the role of the hormonal changes in the aging process in males. Better prevention and treatment of suboptimal health status and age-related diseases in aging men are based on an improved understanding of aging, particularly of the significance of age-associated hormonal changes. The aims of this study were 1) to evaluate the age dependence of the serum concentrations of the following important hormonal parameters in adult males using the IMMULITE 1 automated assay system (DPC, Los Angeles): testosterone, dehydro-epiandrosterone sulfate (DHEAS), estradiol (E2), sex hormone binding globulin (SHBG), lutropin (LH), follitropin (FSH), cortisol, prolactin, thyroid stimulating hormone (TSH), free triiodothyronine (fT3), free thyroxine (fT4) and the growth hormone-dependent parameters insulin-like growth factor (IGF-I) and IGF-binding protein-3 (IGFBP-3) and 2) to derive the following parameters: calculated free testosterone (cFT), ratio of calculated free testosterone to total testosterone (% cFT) and free androgen index (FAI). We found a significant decrease between the 21-30-year age group and the > 70-year age group for total testosterone (-42.4%), FAI (-65.5%), cFT (-60.0%), % cFT (-30.0%), DHEAS (-71.9%), E2 (-35.4%), TSH (-23.6%), IGF-I (-40.3%) and IGFBP-3 (-26.5%). Since the decreases in the FAI and cFT were greater than that of total testosterone and because these derived parameters reflect the biologically active fraction of testosterone, FAI and cFT are better markers for androgen deficiency in males. In contrast, a significant increase with age was observed for SHBG (+61.2%), LH (+40.0%), FSH (+98.3%) and cortisol (+54.2%). No significant alterations with age were observed for prolactin, fT3 and fT4. The study demonstrates that determining complete profiles of the androgenic, gonadotropic, adrenocortical, thyroid, pituitary and growth hormone/IGF endocrine axes in middle-aged and elderly men may be helpful in obtaining a correct clinical diagnosis for various hormonal disorders.
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Affiliation(s)
- Martin W Elmlinger
- University Hospital, Pediatric Endocrinology Section, Tuebingen, Germany.
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Kallinowski B, Seipp S, Dengler T, Klar E, Theilmann L, Stremmel W. Clinical impact of hepatitis G virus infection in heart and liver transplant recipients. Transplant Proc 2003; 34:2288-91. [PMID: 12270402 DOI: 10.1016/s0041-1345(02)03239-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- B Kallinowski
- Department of Gastroenterology and Hepatology, University of Heidelberg, Heidelberg, Germany.
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Weber B, Dengler T, Berger A, Doerr HW, Rabenau H. Evaluation of two new automated assays for hepatitis B virus surface antigen (HBsAg) detection: IMMULITE HBsAg and IMMULITE 2000 HBsAg. J Clin Microbiol 2003; 41:135-43. [PMID: 12517838 PMCID: PMC149549 DOI: 10.1128/jcm.41.1.135-143.2003] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In recent years the diagnostic industry has developed new automated immunoassays for the qualitative detection of hepatitis B virus (HBV) surface antigen (HBsAg) in serum and plasma samples that are performed on analyzers that permit a high-speed throughput, random access, and primary tube sampling. The aim of the present study was the evaluation of two new automated HBsAg screening assays, IMMULITE HBsAg and IMMULITE 2000 HBsAg, from Diagnostic Products Corporation. The new HBsAg assays were compared to well-established tests (Auszyme Monoclonal [overnight incubation, version B], IMx HBsAg, AxSYM HBsAg, and Prism HBsAg [all from Abbott] and Elecsys HBsAg [Roche Diagnostics]). In the evaluation were included seroconversion panels, sera from the acute and chronic phases of infection, dilution series of various HBsAg standards, HBV subtypes and S gene mutants. To challenge the specificity of the new assays, sera from HBsAg-negative blood donors, pregnant women, and dialysis and hospitalized patients and potentially cross-reactive samples were investigated. IMMULITE HBsAg and IMMULITE 2000 HBsAg, although not as sensitive as the Elecsys HBsAg assay, were equivalent to the AxSYM HBsAg assay and showed a higher sensitivity than the Auszyme Monoclonal B and IMx HBsAg systems for detection of acute infection in seroconversion panels. The specificities (100%) of both IMMULITE assays on unselected blood donors and potentially interfering samples were comparable to those of the alternative assays after repeated testing. In conclusion, the new IMMULITE HBsAg and IMMULITE 2000 HBsAg assays show a good sensitivity for HBsAg detection compared to other well-established tests. The specificity on repeatedly tested samples was equivalent to that of the alternative assays. The rapid turnaround time, primary tube sampling, and on-board dilution make it an interesting assay system for clinical laboratory diagnosis.
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Affiliation(s)
- Bernard Weber
- Laboratoires Réunis Kutter-Lieners-Hastert, Junglinster, Luxembourg.
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