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1. Antikoagulantna terapija Ivan Gornik
Zavod za intenzivnu medicinu, KBC Zagreb
2. 2 Coagulation Pathway
3. Antikoagulantna terpija Heparini
Nefrakcionirani heparin
LMWH
Pentasaharid
Varfarin
“Novi antikoagulansi”
Dabigatran (trombin) – Pradaxa, reg. u RH za prev.
Rivaroxaban (Xa) – Xarelto, reg. u RH za prev.
4. Heparini
5. Heparini
6. 6 Coagulation Pathway
7. LMWH Najvažnija uloga u prevenciji DVT/PE
Terapija DVT/PE do uspostave terapijske širine INR
Akutni koronarni sindrom
Oprez kod ekstrema tjelesne mase
Oprez kod renalne insuficijencije
Monitoring – anti Xa aktivnost, 4 sata nakon aplikacije
Protamin – ne sasvim ucinkovit antidot
Podjednako ucinkovit kao NFH u prevenciji i lijecenju DVT/PE
Prednosti – ne treba APTV, manje HIT, moguce manje krvarenja
8. LMWH u dugotrajnoj th. DVT/PE Prema CLOT studiji, dalteparin je bio ucinkovitiji od varfarina u prevenciji recidiva PE u bolesnika s malignom bolesti
Preporuca se dugotrajna terapija 3-6 mjeseci s dalteparinom te onda prelazak na VKA
Nishioka J, Goodin S (2007). "Low-molecular-weight heparin in cancer-associated thrombosis: treatment, secondary prevention, and survival". Journal of Oncology Pharmacy Practice
9. Varfarin
10. 10 Coagulation Pathway
11. 11 Coumarin Mechanism of Action
12. INDIKACIJE Tromboembolijska bolest
Duboka venska tromboza
Plucna embolija
Fibrilacija atrija
Umjetni srcani zalisci
Prokoagulantna stanja
Deficit proteina C
Deficit antitrombina
FV Leiden
Antifosfolipidni sindrom
Dilatativna kardiomiopatija
Aneurizma LK
13. Venska tromboembolija U prvoj godini 15-50% recidiva bez AKT
LMWH neucinkovit
Kratkotrajna oralna AKT neucinkovita
Najmanje tri mjeseca
14. Fibrilacija atrija Paroksizmalna fibrilacija atrija ima isti rizik tromboembolije kao i permamentna
Antikoagulantna terapija trebala bi se propisivati ovisno o riziku
CHA2DS2-VASc
16. VKA u FA, metaanaliza RR reduction with VKA was highly significant and amounted to 64%, corresponding to an absolute annual risk reduction in all strokes of 2.7%.
When only ischaemic strokes were considered, adjusted-dose VKA use was associated with a 67% RR reduction.
many strokes occurring in the VKA-treated patients occurred when patients were not taking therapy or were subtherapeutically anticoagulated.
All-cause mortality was significantly reduced (26%) by adjusted-dose VKA vs. control. The risk of intracranial haemorrhage was small.
Hart RG, Pearce LA, Aguilar MI. Meta-analysis: antithrombotic therapy to prevent stroke in patients who have nonvalvular atrial fibrillation. Ann Intern Med 2007;146:857–867.
17. Preporuka ESC Supported by the results of the trials, VKA treatment should be considered for patients with AF with =1 stroke risk factor(s) provided there are no contraindications, especially with careful assessment of the risk–benefit ratio and an appreciation of the patient's values and preferences.
Guidelines for the Management of Atrial Fibrillation, ESC, Europace. 2010;12(10):1360-1420.
18. Preporuka ESC
20. Rizik krvarenja HAS-BLED
21. Operacija pod VKA treatment should be interrupted ~5 days before surgery
subtherapeutic anticoagulation for up to 48 h, without substituting heparin, given the low risk of thrombo-embolism in this period
VKA should be resumed at the 'usual' maintenance dose (without a loading dose) on the evening of (or the morning after) surgery
surgery or a procedure where the INR is still elevated (>1.5), the administration of low-dose oral vitamin K (1–2 mg) to normalize the INR may be considered
Guidelines for the Management of Atrial Fibrillation, ESC, Europace. 2010;12(10):1360-1420.
22. Stent i VKA Current guidelines for ACS and/or percutaneous coronary intervention (PCI) recommend the use of aspirin–clopidogrel combination therapy after ACS, and a stent (4 weeks for a bare-metal stent, 6–12 months for a drug-eluting stent)
VKA non-treatment is associated with an increase in mortality and major adverse cardiac events, with no significant difference in bleeding rates
prevalence of major bleeding with triple therapy is 2.6–4.6% at 30 days, which increases to 7.4–10.3% at 12 months
EAPCI, suggests that drug-eluting stents should be avoided and triple therapy used in the short term, followed by longer therapy with VKA plus a single antiplatelet drug
Guidelines for the Management of Atrial Fibrillation, ESC, Europace. 2010;12(10):1360-1420.
23. Koronarna bolest i VKA Stable angina - VKA monotherapy should be used, and concomitant antiplatelet therapy should not be prescribed
Published data support the use of VKA for secondary prevention in patients with coronary artery disease, and VKA is at least as effective as aspirin
24. CVI/TIA i novootkrivena FA patients within the first 2 weeks after cardioembolic stroke are at greatest risk of recurrent stroke because of further thrombo-embolism
anticoagulation in the acute phase may result in intracranial haemorrhage or haemorrhagic transformation of the infarct
uncontrolled hypertension should be managed before antithrombotic treatment is started, and cerebral imaging should exclude haemorrhage
absence of haemorrhage – anticoagulation after 2 weeks
Haemorrhage - anticoagulation should not be given
In patients with AF and acute TIA, anticoagulation treatment should begin as soon as possible in the absence of cerebral infarction or haemorrhage.
25. Kardioverzija anticoagulation is considered mandatory before elective cardioversion for AF of >48 h or AF of unknown duration
anticoagulation is considered mandatory before elective cardioversion for AF of >48 h or AF of unknown duration
definite AF <48 h, cardioversion under the cover of UFH administered i.v. followed by infusion or subcutaneous LMWH. In patients with risk factors for stroke, OAC should be started after cardioversion and continued lifelong. UFH or LMWH continued until the INR is at the therapeutic level
AF > 48 h & haemodynamic instability (UA, MI, shock, or pulmonary oedema), immediate cardioversion with UFH or LMWH before cardioversion. After cardioversion, OAC should be started and heparin should be continued until the INR is at the therapeutic level Duration of OAC therapy (4 weeks or lifelong) will depend on the presence of risk factors for stroke
26. Umjetne valvule
28. Previsoki INR Pristup ovisi o klinickoj slici, manje o brojevima