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Nova antitrombotska terapija. P rof . dr sc. Mirza Dili ć, FESC, FACC Klinički Centar Sarajevo šef Centra za srce direktor Internih Klinika i Odjeljenja . Dva tipa tromboze. Venski tromboembolizam
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Nova antitrombotska terapija Prof. dr sc. MirzaDilić, FESC, FACC Klinički Centar Sarajevo šef Centra za srce direktor Internih Klinika i Odjeljenja
Dva tipa tromboze • Venski tromboembolizam • (dominantno preko trombina) • Aterotromboza • (dominantno preko trombocita)
VTE - venski tromboembolizam • DVT (duboka venska tromboza) • PE (plućna embolija) • Profilaksa • Tretman
VTE - venski tromboembolizam • DVT (duboka venska tromboza) • PE (plućni tromboembolizam) • AT (atrijalni trombi)
Centralno mjesto trombina i trombocita
Thrombin ~ antitrombin III Antitrombin III
Antiagregantni faktor Antiagregantni faktor
Standardna terapija • Warfarin, acenokumarol....... • Heparin • LMW Heparin • Aspirin • Dipiridamol • Tiklopidin • Klopidogrel
Anti vitamin K - AVK per oralni antikoagulansi • PO • Inhibira protrombinski kompleks • Warfarin, marivarin, acenokumarol • Potreban monitoring PT i INR • INR izmedju 2,0 i 3,0 • Komplikacija krvarenje • Antidot
Propisivanje VKA u AF No anticoagulation VKAs 64% 67% 55% N=11,409 ATRIA cohort3(managed care system,California, USA) N=23,657 Medicare cohort, USA1 N=5,333 EuroHeart survey2
FDA approval EMA approval Appropriate balansing between clinical benefit and risk of bleeding.
Safety Similarrates of bleeding and adverse events Less CVI and fatal GI bleeding FDA approval
Direct inhibitor Xa - Rivaroxaban • Rivaroxaban vs. warfarin • VTE, AF, ACS • Ortopedska hirurgija • Redukcija trombotskih komplikacija • Kontrolisano krvarenje
Direct inhibitor Xa - Rivaroxaban • Rivaroxaban vs. warfarin • VTE, AF, ACS • Ortopedska hirurgija • Redukcija trombotskih komplikacija • Kontrolisano krvarenje RECORD Trial (VTE – HR, KR) 1x10 MAGELLAN Trial (VT) 1x10 ROCKET Trial (AF)1x15, 1x20 EINSTEIN Trial (VTE) 2x15 ATLAS ACS TIMI 2 (ACS) 2 x 2,5, 2 x 5
Direct inhibitor Xa - Apixaban • Apixaban vs warfarin • ACS, VTE, AF, • Ortopedska hirurgija • Redukcija VTE komplikacija • Kontrolisano krvarenje ADVANCE Trial (HR) 2x2,5 AVVEROES (AF) 2x5 ARISTOTLE (AF) 2x5 APPRAISE 2 (ACS) 2x5
Apixaban European Medicines Agency advisory committee has "recommended approval" of anti-clotting drug apixaban for use in patients with "atrial fibrillation if it's not caused by a heart valve problem." If the EMA take the panel's advice and apixaban is approved, it would be eligible for "sales in all 27 European Union member states, as well as Iceland and Norway."
Direct thrombin inhibitorDabigatran • Dabigatran • VTE, AF, ACS • Ortopedska hirurgija • Redukcija trombotskih komplikacija • Kontrolisano krvarenje RE-LY Trial RE-COVER Trial
Dabigatran 150 mg. twice daily Dabigatran 75 mg. daily FDA approval
Prasugrel Ticagrelor Cangrelor (I.V) Novel antiplatelets
ADP inhibitor • 5-9 x jači effect od clopidogrela • 60 mg. loading dose + 10 mg dn. • Efficacy – bleeding risk Prasugrel
ADP direktni inhibitor - subtip P2Y12 • Reverzibilan inhibitor • Ne aktivira se preko jetre • 180 mg loading dose + 2 x 90 mg doza maintance • Efficacy – bleeding risk Ticagrelor
ACCPGuidelines 2012
CHEST 2012 9 ed.Executive Summary Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines Guyatt GH, MD, FCCP, Aki EA, MD, PhD, MPH, Crowther M, MD, Gutterman DD, MD, FCCP, Schuemann HJ, MD, PhD, FCCP, and for theAmerican College of Chest Physicians Antithrombotic Therapy and Prevention of Thrombosis Panel*
For patients with AF, including those with paroxysmal AF, who are at low risk of stroke (eg, CHADS2 [congestive heart failure, hypertension, age ≥ 75 years, diabetes mellitus, prior stroke or transient ischemic attack] score = 0), we suggest no therapy rather than antithrombotic therapy (Grade 2B). For patients who do choose antithrombotic therapy, we suggest aspirin (75 mg to 325 mg once daily) rather than oral anticoagulation (Grade 2B) or combination therapy with aspirin and clopidogrel (Grade 2B). Antithrombotic Therapy for Atrial Fibrillation Nonrheumatic Atrial Fibrillation (AF)
For patients with AF, including those with paroxysmal AF, who are at intermediate risk of stroke(eg, CHADS2 score = 1), we recommend oral anticoagulationrather than no therapy (Grade 1B). We suggest oral anticoagulation rather than aspirin (75 mg to 325 mg once daily) (Grade 2B) or combination therapy with aspirin and clopidogrel (Grade 2B). For patients who are unsuitable for or choose not to take an oral anticoagulant (for reasons other than concerns about major bleeding), we suggest combination therapy with aspirin and clopidogrel rather than aspirin (75 mg to 325 mg once daily) (Grade 2B). . AF and intermediate risk of stroke
For patients with AF, including those with paroxysmal AF, who are at high risk of stroke (eg, CHADS2 score = 2), we recommend oral anticoagulation rather than no therapy (Grade 1A), aspirin (75 mg to 325 mg once daily) (Grade 1B), or combination therapy with aspirin and clopidogrel (Grade 1B). For patients with AF, including those with paroxysmal AF, for recommendations in favor of oral anticoagulation we suggest dabigatran 150 mg twice daily rather than adjusted-dose VKA therapy (target INR range, 2.0-3.0) (Grade 2B). AF and high risk of stroke
Strictly fixed ? • Non-Responder? • Hyper-Responder ? Dosage ???
ACC / AHA / ESC Guidelines Update 2012 2012