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Romlin BS, Söderlund F, Wåhlander H, Hallhagen S, Wessman C, Baghaei F, Jeppsson A. Perioperative monitoring of platelet function in paediatric cardiac surgery by thromboelastometry, or platelet aggregometry? Br J Anaesth 2018; 116:822-8. [PMID: 27199313 DOI: 10.1093/bja/aew053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Impaired platelet function increases the risk of bleeding complications in cardiac surgery. Reliable assessment of platelet function can improve treatment. We investigated whether thromboelastometry detects clinically significant preoperative, perioperative, and postoperative adenosine diphosphate (ADP)-dependent platelet dysfunction in paediatric cardiac surgery patients. METHODS Fifty-seven children were included in a single-centre prospective observational study. Clot formation (modified rotational thromboelastometry with heparinase, HEPTEM) and platelet aggregation (multiple electrode aggregometry) were analysed at five time points before, during, and after surgery. The accuracy of thromboelastometric indices of platelet function [maximal clot firmness (MCF) and clot formation time (CFT)] to detect ADP-dependent platelet dysfunction (defined as ADP-induced aggregation ≤30 units) was calculated with receiver operating characteristics analysis, which also identified optimal cut-off levels. Positive and negative predictive values for the identified cut-off levels (CFT≥166 s; MCF≤43 mm) to detect platelet function were determined. RESULTS The MCF and CFT were highly accurate in predicting platelet dysfunction during cardiopulmonary bypass [CPB; area under the aggregation curve 0.89 (95% confidence interval 0.80-0.97) and 0.86 (0.77-0.96), respectively] but not immediately after CPB [0.64 (0.48-0.79) and 0.67 (0.52-0.82), respectively] or on arrival at the intensive care unit [0.53 (0.37-0.69) and 0.60 (0.44-0.77), respectively]. The positive and negative predictive values were acceptable during CPB (87 and 67%, respectively, for MCF≤43 mm; 80 and 100% for CFT≥166 s) but markedly lower after surgery. CONCLUSION In paediatric cardiac surgery, thromboelastometry has acceptable ability to detect ADP-dependent platelet dysfunction during, but not after, CPB.
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Boer C, Meesters MI, Milojevic M, Benedetto U, Bolliger D, von Heymann C, Jeppsson A, Koster A, Osnabrugge RL, Ranucci M, Ravn HB, Vonk AB, Wahba A, Pagano D. 2017 EACTS/EACTA Guidelines on patient blood management for adult cardiac surgery. J Cardiothorac Vasc Anesth 2018; 32:88-120. [DOI: 10.1053/j.jvca.2017.06.026] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Indexed: 01/28/2023]
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Valgimigli ADGDTM, Bueno H, Byrne RA, Collet JP, Costa F, Jeppsson A, Jüni P, Kastrati A, Kolh P, Mauri L, Montalescot G, Neumann FJ, Petricevic M, Roffi M, Steg PG, Windecker S, Zamorano JL, Levine CAGN, Badimon RDDL, Vranckx P, Agewall S, Andreotti F, Antman E, Barbato E, Bassand JP, Bugiardini R, Cikirikcioglu M, Cuisset T, De Bonis M, Delgado V, Fitzsimons D, Gaemperli O, Galiè N, Gilard M, Hamm CW, Ibáñez B, Iung B, James S, Knuuti J, Landmesser U, Leclercq C, Lettino M, Lip G, Piepoli MF, Pierard L, Schwerzmann M, Sechtem U, Simpson IA, Uva MS, Stabile E, Storey RF, Tendera M, Van de Werf F, Verheugt F, Aboyans V. Actualización ESC 2017 sobre el tratamiento antiagregante plaquetario doble en la enfermedad coronaria, desarrollada en colaboración con la EACTS. Rev Esp Cardiol (Engl Ed) 2018. [DOI: 10.1016/j.recesp.2017.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Singh S, Shams Hakimi C, Jeppsson A, Hesse C. Platelet storage lesion in interim platelet unit concentrates: A comparison with buffy-coat and apheresis concentrates. Transfus Apher Sci 2017; 56:870-874. [PMID: 29126740 DOI: 10.1016/j.transci.2017.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 10/12/2017] [Accepted: 10/16/2017] [Indexed: 11/25/2022]
Abstract
Platelet storage lesion is characterized by morphological changes and impaired platelet function. The collection method and storage medium may influence the magnitude of the storage lesion. The aim of this study was to compare the newly introduced interim platelet unit (IPU) platelet concentrates (PCs) (additive solution SSP+, 40% residual plasma content) with the more established buffy-coat PCs (SSP, 20% residual plasma content) and apheresis PCs (autologous plasma) in terms of platelet storage lesions. Thirty PCs (n=10 for each type) were assessed by measuring metabolic parameters (lactate, glucose, and pH), platelet activation markers, and in vitro platelet aggregability on days 1, 4, and 7 after donation. The expression of platelet activation markers CD62p (P-selectin), CD63 (LAMP-3), and phosphatidylserine was measured using flow cytometry and in vitro aggregability was measured with multiple electrode aggregometry. Higher platelet activation and lower in vitro aggregability was observed in IPU than in buffy-coat PCs on day 1 after donation. In contrast, metabolic parameters, expression of platelet activation markers, and in vitro aggregability were better maintained in IPU than in buffy-coat PCs at the end of the storage period. Compared to apheresis PCs, IPU PCs had higher expression of activation markers and lower in vitro aggregability throughout storage. In conclusion, the results indicate that there are significant differences in platelet storage lesions between IPU, buffy-coat, and apheresis PCs. The quality of IPU PCs appears to be at least comparable to buffy-coat preparations. Further studies are required to distinguish the effect of the preparation methods from storage conditions.
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Hansson EC, Malm CJ, Hesse C, Hornestam B, Dellborg M, Rexius H, Jeppsson A. Platelet function recovery after ticagrelor withdrawal in patients awaiting urgent coronary surgery. Eur J Cardiothorac Surg 2017; 51:633-637. [PMID: 28007881 DOI: 10.1093/ejcts/ezw373] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/10/2016] [Indexed: 01/06/2023] Open
Abstract
Objective Dual antiplatelet therapy with ticagrelor and aspirin is associated with an increased risk of perioperative bleeding complications. Current guidelines recommend therefore discontinuation of ticagrelor 5 days before surgery to allow sufficient recovery of platelet function. It is not known how the time to recovery varies between individual patients after discontinuation of ticagrelor. Methods Twenty-five patients accepted for urgent coronary artery bypass surgery and treated with ticagrelor and aspirin were included in a prospective observational study. Platelet aggregation was evaluated with impedance aggregometry at five timepoints 12-96 h after discontinuation of ticagrelor. In a subset of patients ( n = 15), we also tested the ex vivo efficacy of platelet concentrate supplementation on platelet aggregation. Results There was a gradual increase in mean adenosine diphosphate-induced platelet aggregation after discontinuation of ticagrelor. After 72 h, mean aggregation was 38 ±23 aggregation units (U), which is above a previously suggested cut-off of 22 U, when patients can be operated without increased bleeding risk. However, there was a large interindividual variability (range 4‒88 U at 72 h) and 6/24 patients (25%) had <22 U after 72 h. Ex vivo administration of platelet concentrate did not improve adenosine diphosphate-induced aggregation at any timepoint after ticagrelor discontinuation. Conclusions Adenosine diphosphate-induced aggregation was acceptable after 72 h in the majority of patients but with a large interindividual variability. Due to the large variability, platelet function testing may prove to be a valuable tool in timing of surgery in patients with ongoing or recently stopped ticagrelor treatment. Adenosine diphosphate-induced aggregation was not improved by addition of platelet concentrate.
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Sousa-Uva M, Head SJ, Milojevic M, Collet JP, Landoni G, Castella M, Dunning J, Gudbjartsson T, Linker NJ, Sandoval E, Thielmann M, Jeppsson A, Landmesser U. 2017 EACTS Guidelines on perioperative medication in adult cardiac surgery. Eur J Cardiothorac Surg 2017; 53:5-33. [PMID: 29029110 DOI: 10.1093/ejcts/ezx314] [Citation(s) in RCA: 229] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Pagano D, Milojevic M, Meesters MI, Benedetto U, Bolliger D, von Heymann C, Jeppsson A, Koster A, Osnabrugge RL, Ranucci M, Ravn HB, Vonk ABA, Wahba A, Boer C. 2017 EACTS/EACTA Guidelines on patient blood management for adult cardiac surgery. Eur J Cardiothorac Surg 2017; 53:79-111. [DOI: 10.1093/ejcts/ezx325] [Citation(s) in RCA: 192] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Olsson C, Ahlsson A, Fuglsang S, Geirsson A, Gunn J, Hansson EC, Hjortdal V, Jarvela K, Jeppsson A, Mennander A, Nozohoor S, Wickbom A, Zindovic I, Gudbjartsson T. Medium-term survival after surgery for acute Type A aortic dissection is improving. Eur J Cardiothorac Surg 2017; 52:852-857. [DOI: 10.1093/ejcts/ezx302] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 07/07/2017] [Indexed: 11/12/2022] Open
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Vukusic K, Jansson M, Sandstedt M, Oldfors A, Dellgren G, Jeppsson A, Sandstedt J. P2544A novel stem cell niche in the human atrio-ventricular junction? Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2544] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Valgimigli M, Bueno H, Byrne RA, Collet JP, Costa F, Jeppsson A, Jüni P, Kastrati A, Kolh P, Mauri L, Montalescot G, Neumann FJ, Petricevic M, Roffi M, Steg PG, Windecker S, Zamorano JL, Levine GN, Badimon L, Vranckx P, Agewall S, Andreotti F, Antman E, Barbato E, Bassand JP, Bugiardini R, Cikirikcioglu M, Cuisset T, De Bonis M, Delgado V, Fitzsimons D, Gaemperli O, Galiè N, Gilard M, Hamm CW, Ibanez B, Iung B, James S, Knuuti J, Landmesser U, Leclercq C, Lettino M, Lip G, Piepoli MF, Pierard L, Schwerzmann M, Sechtem U, Simpson IA, Uva MS, Stabile E, Storey RF, Tendera M, Van de Werf F, Verheugt F, Aboyans V. 2017 ESC focused update on dual antiplatelet therapy in coronary artery disease developed in collaboration with EACTS. Eur J Cardiothorac Surg 2017; 53:34-78. [DOI: 10.1093/ejcts/ezx334] [Citation(s) in RCA: 172] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Collet JP, Roffi M, Byrne RA, Costa F, Valgimigli M, Valgimigli M, Bueno H, Byrne RA, Collet JP, Costa F, Jeppsson A, Jüni P, Kastrati A, Kolh P, Mauri L, Montalescot G, Neumann FJ, Petricevic M, Roffi M, Steg PG, Windecker S, Zamorano JL, Badimon L, Vranckx P, Agewall S, De Luca L, Desmet W, James S, Lettino M, McFadden EP, Storey R, Ten Berg JM, Aboyans V, Jofresa AB, Biščević A, Calabrò P, Constantinides S, Damrina E, Diakite M, Dzudovic B, Ruiz VG, Yáñez IK, Lacalzada-Almeida J, Leite L, Maskon O, Myat LL, Ricottini E, Saporito F, Wong PSC, Yamaji K, Zeitouni M. Case-based implementation of the 2017 ESC Focused Update on Dual Antiplatelet Therapy in Coronary Artery Disease. Eur Heart J 2017; 39:e1-e33. [DOI: 10.1093/eurheartj/ehx503] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Valgimigli M, Bueno H, Byrne RA, Collet JP, Costa F, Jeppsson A, Jüni P, Kastrati A, Kolh P, Mauri L, Montalescot G, Neumann FJ, Petricevic M, Roffi M, Steg PG, Windecker S, Zamorano JL, Levine GN, Badimon L, Vranckx P, Agewall S, Andreotti F, Antman E, Barbato E, Bassand JP, Bugiardini R, Cikirikcioglu M, Cuisset T, De Bonis M, Delgado V, Fitzsimons D, Gaemperli O, Galiè N, Gilard M, Hamm CW, Ibanez B, Iung B, James S, Knuuti J, Landmesser U, Leclercq C, Lettino M, Lip G, Piepoli MF, Pierard L, Schwerzmann M, Sechtem U, Simpson IA, Uva MS, Stabile E, Storey RF, Tendera M, Van de Werf F, Verheugt F, Aboyans V, Windecker S, Aboyans V, Agewall S, Barbato E, Bueno H, Coca A, Collet JP, Coman IM, Dean V, Delgado V, Fitzsimons D, Gaemperli O, Hindricks G, Iung B, Jüni P, Katus HA, Knuuti J, Lancellotti P, Leclercq C, McDonagh T, Piepoli MF, Ponikowski P, Richter DJ, Roffi M, Shlyakhto E, Simpson IA, Zamorano JL, Windecker S, Aboyans V, Agewall S, Barbato E, Bueno H, Coca A, Collet JP, Coman IM, Dean V, Delgado V, Fitzsimons D, Gaemperli O, Hindricks G, Iung B, Jüni P, Katus HA, Knuuti J, Lancellotti P, Leclercq C, McDonagh T, Piepoli MF, Ponikowski P, Richter DJ, Roffi M, Shlyakhto E, Simpson IA, Zamorano JL, Roithinger FX, Aliyev F, Stelmashok V, Desmet W, Postadzhiyan A, Georghiou GP, Motovska Z, Grove EL, Marandi T, Kiviniemi T, Kedev S, Gilard M, Massberg S, Alexopoulos D, Kiss RG, Gudmundsdottir IJ, McFadden EP, Lev E, De Luca L, Sugraliyev A, Haliti E, Mirrakhimov E, Latkovskis G, Petrauskiene B, Huijnen S, Magri CJ, Cherradi R, Ten Berg JM, Eritsland J, Budaj A, Aguiar CT, Duplyakov D, Zavatta M, Antonijevic NM, Motovska Z, Fras Z, Montoliu AT, Varenhorst C, Tsakiris D, Addad F, Aydogdu S, Parkhomenko A, Kinnaird T. 2017 ESC focused update on dual antiplatelet therapy in coronary artery disease developed in collaboration with EACTS. Eur Heart J 2017; 39:213-260. [DOI: 10.1093/eurheartj/ehx419] [Citation(s) in RCA: 1697] [Impact Index Per Article: 242.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Jeppsson A. How East Germany Fabricated the Myth of HIV Being Man-Made. J Int Assoc Provid AIDS Care 2017; 16:519-522. [PMID: 28814120 DOI: 10.1177/2325957417724203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Despite the fact that the origin of human immunodeficiency virus (HIV) being a contamination and a mutation originating from primates is well-documented alternative narratives are often being heard ofespecially in sub-Saharan Africa. One such narrative is about HIV being man-made in a military laboratory in the United States. In this article, it is shown how this narrative was fabricated by the intelligence services in East Germany (German Democratic Republic - GDR) as part of the ideological warfare during the Cold War. The purpose of this article is to put an end to a long-lasting conspiracy theory, which is still alive and may create diversion from serious research on the topic.
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Christersson C, Ahlsson A, Friberg O, James S, Jeppsson A, Lindhagen L, Stahle E. P2996Antithrombotic strategies in patients with aortic bio prostheses, what is the optimal treatment. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p2996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Damman P, Jernberg T, Lindahl B, de Winter RJ, Jeppsson A, Johanson P, Held C, James SK. Invasive strategies and outcomes for non-ST-segment elevation acute coronary syndromes: a twelve-year experience from SWEDEHEART. EUROINTERVENTION 2017; 12:1108-1116. [PMID: 26573973 DOI: 10.4244/eijy15m11_05] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
AIMS Despite recommendations in recent guidelines for a routine invasive strategy for non-ST-segment elevation acute coronary syndrome (NSTE-ACS), long-term data on the implementation of treatment strategies in clinical practice are not available. Our aim was to provide long-term data on the implementation of a routine invasive strategy in NSTE-ACS in clinical practice. METHODS AND RESULTS In the SWEDEHEART registry, data from 204,092 consecutive NSTE-ACS patients admitted between 1996 and 2007 were recorded. The use of the routine invasive strategy, retrospectively defined as coronary angiography (and subsequent revascularisation) within three days after admission, increased from 3.8% in the period 1996-1998 to 37.4% in the period 2005-2007. The largest absolute increase in the use of this strategy was observed in low-risk patients, while a similar relative increase was observed in all risk categories. The use of the selective invasive strategy, defined as coronary angiography later than three days after admission or none at all, decreased from 96.2% in the period 1996-1998 to 62.5% in the period 2005-2007. In the total population, there was a gradual decrease in three-year all-cause mortality, from 29.1% in the period 1996-1998 to 23.9% in the period 2005-2007. CONCLUSIONS There has been an increase in the use of a routine invasive strategy in NSTE-ACS patients over the course of 12 years in Sweden. There was a decrease in three-year mortality over the same time course.
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Geirsson A, Ahlsson A, Franco-Cereceda A, Fuglsang S, Gunn J, Hansson EC, Hjortdal V, Jarvela K, Jeppsson A, Mennander A, Nozohoor S, Olsson C, Pan E, Wickbom A, Zindovic I, Gudbjartsson T. Hospital volumes and later year of operation correlates with better outcomes in acute Type A aortic dissection†. Eur J Cardiothorac Surg 2017; 53:276-281. [DOI: 10.1093/ejcts/ezx231] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 06/06/2017] [Indexed: 11/13/2022] Open
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Shams Hakimi C, Carling MS, Hansson EC, Brisby H, Hesse C, Radulovic V, Jeppsson A. The Effect of Ex Vivo Factor XIII Supplementation on Clot Formation in Blood Samples From Cardiac and Scoliosis Surgery Patients. Clin Appl Thromb Hemost 2017. [PMID: 28651441 DOI: 10.1177/1076029617713872] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Excessive perioperative bleeding remains a substantial problem. Factor XIII (FXIII) contributes to clot stability, and it has therefore been suggested that supplementation with FXIII concentrate may improve perioperative hemostasis. We evaluated the effects of increasing doses of FXIII, alone or in combination with fibrinogen or platelet concentrate, in blood samples from 2 considerably different groups of surgical patients: cardiac and scoliosis surgery patients. Whole-blood samples were collected immediately after operation from cardiac and scoliosis surgery patients. The samples were supplemented with 3 clinically relevant doses of FXIII concentrate (+20%, +40%, and +60%), alone or in combination with a fixed dose of fibrinogen concentrate (+1.0 g/L) or fresh apheresis platelets (+92 × 109/L). Clot formation was assessed with rotational thromboelastometry (ROTEM). When the highest dose of FXIII concentrate was added, EXTEM clotting time was shortened by 10% in both cardiac and scoliosis surgery patients (95% confidence intervals: 2.4%-17% and 3.3%-17%, respectively), and FIBTEM maximum clot firmness was increased by 25% (9.3%-41%) in cardiac patients, relative to baseline. When fibrinogen was added, the dose-dependent effect of FXIII on clot stability was maintained, but the total effect was markedly greater than with FXIII alone, +150% (100%-200%) and +160% (130%-200%) for the highest FXIII dose in cardiac and scoliosis patients, respectively. Ex vivo supplementation with clinically relevant doses of FXIII improved clot formation moderately in blood samples from cardiac and scoliosis surgery patients, both alone and when given in combination with fibrinogen or platelet concentrate.
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Jeppsson A, Hansson E. Antiplatelet Therapy, Platelet Function Testing, and Bleeding Complications in Cardiac Surgery Patients. Semin Thromb Hemost 2017; 43:699-705. [DOI: 10.1055/s-0037-1603366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractAntiplatelet therapy with acetylsalicylic acid, alone or in combination with a P2Y12 inhibitor, reduces thromboembolic events in patients with coronary artery disease but increases the risk for spontaneous and perioperative bleeding complications. Both the antiplatelet effect and the risk for bleeding complications are larger with the new generation P2Y12 inhibitors prasugrel and ticagrelor than with clopidogrel. In this review, the perioperative handling of acetylsalicylic acid and the P2Y12 inhibitors clopidogrel, prasugrel, and ticagrelor will be discussed. In addition, the concept of platelet function testing in the surgical setting will be covered.
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Barbu M, Lindström U, Nordborg C, Martinsson A, Dworeck C, Jeppsson A. Sclerosing Aortic and Coronary Arteritis Due to IgG4-Related Disease. Ann Thorac Surg 2017; 103:e487-e489. [DOI: 10.1016/j.athoracsur.2016.12.048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 12/13/2016] [Accepted: 12/20/2016] [Indexed: 12/24/2022]
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Gan LM, Svedlund S, Wittfeldt A, Eklund C, Gao S, Matejka G, Jeppsson A, Albertsson P, Omerovic E, Lerman A. Incremental Value of Transthoracic Doppler Echocardiography-Assessed Coronary Flow Reserve in Patients With Suspected Myocardial Ischemia Undergoing Myocardial Perfusion Scintigraphy. J Am Heart Assoc 2017; 6:JAHA.116.004875. [PMID: 28420647 PMCID: PMC5533003 DOI: 10.1161/jaha.116.004875] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Background Adenosine‐assisted transthoracic Doppler‐derived coronary flow reserve (TDE‐CFR) reflects coronary vascular function. The prognostic and incremental value of left anterior descending coronary artery TDE‐CFR above myocardial perfusion scintigraphy in patients with suspected myocardial ischemia has not yet been studied. Methods and Results Three hundred seventy‐one patients (mean age, 62.3±8.7 years; 46.8% males) referred to myocardial perfusion scintigraphy attributed to suspected myocardial ischemia were included in the study. The TDE‐CFR result was blinded to the referring physician. Patients were followed up regarding major cardiovascular events, defined as cardiovascular death, myocardial infarction, or acute revascularization during a median follow‐up time of 4.5 years. A TDE‐CFR value of ≤2.0 was considered reduced. Major cardiovascular events occurred during follow‐up in 60 patients (16.2%). A reduced TDE‐CFR was detected in 76 patients (20.5%). Patients with reduced TDE‐CFR had an event rate of 36.8% compared to 10.8% in patients with normal TDE‐CFR (unadjusted hazard ratio, 4.63; 95% CI, 2.78–7.69; P<0.001). In a multivariate model, TDE‐CFR remained a significant independent predictor of major cardiovascular events. The major cardiovascular events rate was 7.5% in patients without myocardial perfusion scintigraphy‐detected myocardial ischemia and normal TDE‐CFR (n=200), 24.2% in patients without ischemia but with reduced TDE‐CFR (n=33), and 46.5% in patients with both myocardial perfusion scintigraphy–detected myocardial ischemia and a reduced TDE‐CFR (n=43; P<0.001). Conclusions Coronary microvascular dysfunction, as determined by TDE‐CFR, is a strong independent predictor of cardiovascular events and adds incremental prognostic value compared with myocardial perfusion scintigraphy. The current study supports routine assessment of CFR in patients with suspected ischemic heart disease.
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He S, Blombäck M, Wallén H, Jeppsson A, Grass S. Global impairments in the haemostasis systems after cardiopulmonary bypass. Thromb Res 2017; 151:63-66. [DOI: 10.1016/j.thromres.2017.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 01/12/2017] [Accepted: 01/23/2017] [Indexed: 10/20/2022]
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Jeppsson A, Karlsson M. Preoperative supplementation with fibrinogen concentrate in cardiac surgery: Reply. Br J Anaesth 2017; 118:273-274. [DOI: 10.1093/bja/aew452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Hultgren K, Andreasson A, Axelsson TA, Albertsson P, Lepore V, Jeppsson A. Acute coronary angiography after coronary artery bypass grafting. SCAND CARDIOVASC J 2016; 50:123-7. [PMID: 26853097 DOI: 10.3109/14017431.2016.1143112] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Coronary angiography is the golden standard when myocardial ischemia after CABG occurs. We summarize our experience of acute coronary angiography after CABG. DESIGN All 4446 patients (mean age 68 ± 9 years, 22% women) who underwent CABG 2007 to 2012 were included in this retrospective observational study. Incidence, indications, findings, measures of acute angiography after CABG was assessed. Outcome variables were compared between patients who underwent angiography and those who did not. RESULTS Eighty-seven patients (2%) underwent acute coronary angiography. Patients undergoing angiography had ECG changes (92%), echocardiographic alterations (48%), hemodynamic instability (28%), angina (15%), and/or arrhythmia (13%). Positive findings were detected in 69% of the cases. Only ECG changes as indication for angiography had a moderate association with positive findings, but the precision increased if other sign(s) of ischemia were present. Thirty-day mortality (7% versus 2%, p = 0.002) was higher and long-term-cumulative survival lower (77% versus 87% at five years, p = 0.043) in angiography patients. CONCLUSIONS Acute angiography is a rare event after CABG. Postoperative myocardial ischemia leading to acute coronary angiography is associated with increased short-term and long-term mortality.
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Inci K, Koutouzi G, Chernoray V, Jeppsson A, Nilsson H, Falkenberg M. Air bubbles are released by thoracic endograft deployment: An in vitro experimental study. SAGE Open Med 2016; 4:2050312116682130. [PMID: 27994872 PMCID: PMC5153025 DOI: 10.1177/2050312116682130] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/09/2016] [Indexed: 11/15/2022] Open
Abstract
Purpose: Embolic stroke is a dreaded complication of thoracic endovascular aortic repair. The prevailing theory about its cause is that particulate debris from atherosclerotic lesions in the aortic wall are dislodged by endovascular instruments and embolize to the brain. An alternative source of embolism might be air trapped in the endograft delivery system. The aim of this experimental study was to determine whether air is released during deployment of a thoracic endograft. Methods: In an experimental benchtop study, eight thoracic endografts (five Medtronic Valiant Thoracic and three Gore TAG) were deployed in a water-filled transparent container drained from air. Endografts were prepared and deployed according to their instructions for use. Deployment was filmed and the volume of air released was collected and measured in a calibrated syringe. Results: Air was released from all the endografts examined. Air volumes ranged from 0.1 to 0.3 mL for Medtronic Valiant Thoracic and from <0.025 to 0.04 mL for Gore TAG. The largest bubbles had a diameter of approximately 3 mm and came from the proximal end of the Medtronic Valiant device. Conclusion: Air bubbles are released from thoracic endografts during deployment. Air embolism may be an alternative cause of stroke during thoracic endovascular aortic repair.
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Wittfeldt A, Jeppsson A, Gan LM. Effects of nitroglycerine on coronary flow velocity before and during adenosine provocation. Cardiovasc Ultrasound 2016; 14:48. [PMID: 27919286 PMCID: PMC5139021 DOI: 10.1186/s12947-016-0091-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 11/22/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Transthoracic echocardiography-assessed coronary flow velocity reserve (CFVR) evaluates coronary microvascular arterial function. Coronary flow velocity measurements at baseline and during hyperemia are used to calculate CFVR. Adenosine infusion induces hyperemia but it is not known if it causes a maximal response. We hypothesized that pre-treatment with nitroglycerine before adenosine provocation enhances hyperemia. METHODS Twenty-three healthy study subjects (mean age 27.5 ± 5.5, 35% women) underwent CFVR measurements before and after pretreatment with sublingual nitroglycerine (0.5 mg). Hyperemia was induced by adenosine infusion (140 μg/kg/min). In addition, the effect of nitroglycerin on left main coronary artery diameter was assessed. RESULTS Pretreatment with nitroglycerine increased median CFVR from 3.6 (range 2.8-4.3) to 5.0 (4.1-6.0), p = 0.002. The increase was caused by a marked reduction in baseline coronary flow velocity 17 (15-24) vs 27 (19-31) cm/s, p < 0.0001) while hyperemic velocity remained unchanged (90 (68-116) vs 93 (75-105) cm/s, p = 0.48). Nitroglycerin significantly dilated the left main coronary artery (from median 3.1 (2.7-3.6) mm to 3.8 (3.1-4.3) mm, p = 0.018). CONCLUSION Pretreatment with nitroglycerine dilates coronary arteries and increases coronary flow velocity reserve indicating that adenosine alone causes a submaximal hyperemia.
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