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High-Dose ϵ-Aminocaproic Acid Versus Aprotinin: Antifibrinolytic Efficacy in First-Time Coronary Operations Balthasar Eberle, Eckhard Mayer, Gerhard Hafner, Jens Heinermann, Manfred Dahm, Winfried Prellwitz, Wolfgang Dick, Hellmut Oelert The Annals of Thoracic Surgery Volume 65, Issue 3, Pages (March 1998) DOI: /S (97)
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Fig. 1 Thrombin-antithrombin complex levels increase until termination of cardiopulmonary bypass (CPB) in all patients. Thereafter, the thrombin-antithrombin complex remains elevated for 12 postoperative hours in untreated patients, more than in patients receiving aprotinin or ϵ-aminocaproic acid (ϵ-ACA) (∗p < 0.05 versus aprotinin or ϵ-aminocaproic acid). Box plot shows medians, interquartile ranges (boxes), and 10th/90th percentiles (whiskers). The Annals of Thoracic Surgery , DOI: ( /S (97) )
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Fig. 2 Perioperative profiles of fibrinogen-fibrin split products (A) and, specifically, d-dimers (B). Both aprotinin and ϵ-aminocaproic acid (ϵ-ACA) effectively suppress their appearance. Untreated patients show highly elevated levels of fibrinolytic products (∗p < versus active drugs). Data are means ± standard errors. The Annals of Thoracic Surgery , DOI: ( /S (97) )
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Fig. 3 Perioperative profile of antiplasmin-plasmin complex levels. Patients treated with ϵ-aminocaproic acid (ϵ-ACA) show a significant increase of about 12 hours (∗p < 0.02 versus control). Aprotinin is most effective in suppressing antiplasmin-plasmin complex generation (∗∗p < versus ϵ-aminocaproic acid). Data are means ± standard errors. The Annals of Thoracic Surgery , DOI: ( /S (97) )
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Fig. 4 Four-hourly (bars) and cumulative (lines) postoperative thoracic drainage in first-time coronary artery bypass patients treated with either aprotinin, ϵ-aminocaproic acid (ϵ-ACA), or untreated controls. Both antifibrinolytics are highly effective (∗∗p < versus control). For 4 hours after completion of drug infusion, aprotinin reduces drainage transiently more than ϵ-aminocaproic acid (∗p < 0.02 versus ϵ-aminocaproic acid or control). Cumulative 24-hour analysis is not sensitive enough to recognize this difference. Graph shows means ± standard errors. The Annals of Thoracic Surgery , DOI: ( /S (97) )
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