T i fil i Terapia e profilassi antitrombotica nel DEA antitrombotica nel DEA
Quali dati nella pratica clinica?
Dott Rita Bonfini
- Dott. Rita Bonfini
T Terapia e profilassi i fil i antitrombotica nel DEA - - PowerPoint PPT Presentation
T Terapia e profilassi i fil i antitrombotica nel DEA antitrombotica nel DEA Quali dati nella pratica clinica? Dott Rita Bonfini Dott. Rita Bonfini Definizione Definizione AHA AF is a supraventricular tachyarrhythmia with uncoordinated
Dott Rita Bonfini
AF is a supraventricular tachyarrhythmia with uncoordinated atrial activation and consequently
AF is a supraventricular tachyarrhythmia with uncoordinated atrial activation and consequently ineffective atrial contraction. Electrocardiogram (ECG) characteristics include: 1) irregular R-R intervals (when atrioventricular [AV] conduction is present) [ ] p ) 2) absence of distinct repeating P waves 3) irregular atrial activity.
AF is defined as a cardiac arrhythmia with the following characteristics: (1) Th f ECG h ‘ b l t l ’ i l RR i t l (AF i th f ti (1) The surface ECG shows ‘absolutely’ irregular RR intervals (AF is therefore sometimes known as arrhythmia absoluta), i.e. RR intervals that do not follow a repetitive pattern. (2) There are no distinct P waves on the surface ECG. Some apparently regular atrial electrical activity may be seen in some ECG leads, most often in lead V1. electrical activity may be seen in some ECG leads, most often in lead V1. (3) The atrial cycle length (when visible), i.e. the interval between two atrial activations, is usually variable and ,200 ms (.300 bpm).
impianto di valvole
ESC: valvular AF is used to imply that AF is related to rheumatic valvular disease (pre- dominantly mitral stenosis) or prosthetic heart valves
Controllo del ritmo - ripristino di ritmo sinusale
ESC 2010: An inappropriate ventricular rate and irregularity of the rhythm can cause symptoms and severe haemodynamic distress in AF rhythm can cause symptoms and severe haemodynamic distress in AF patients.
Controllo della frequenza – FC < 100
ESC 2010: Patients with a rapid ventricular response usually need acute control of their ventricular rate… In the acute setting, the target ventricular rate should usually be 80– 100 bpm…
Farmaco Dosaggio Raccomandazione Flecainide
mg) ‐ ev
Classe I Livello A Propafenone
2 mg/kg in 10‐20 min (max 150 mg) ‐ ev 450‐600 mg singola dose ‐ os
Classe I Livello A Ibutilide
1 mg in 10 min: dopo 10 min
Classe I Ibutilide
1 mg in 10 min: dopo 10 min ripetere se necessario 0.5‐1 mg in 10 min ‐ ev
Classe I Livello A Amiodarone
5‐7 mg/kg in 60 min, seguiti da 15 /k i 24 h
Classe IIb
mg/kg in 24 h – ev 600 mg/d x 2‐3 settimane (o 10 mg/kg x 10 gg) poi 200 mg die ‐
Livello A Vernakalant
3 mg/kg in 10 min ripetibile 2 mg/kg dopo 15 min
Classe I Livello A
FA di recente insorgenza (< 48 ore), in alternativa alla cardioversione farmacologica
I C
FA con compromissione emodinamica, indipendentemente dalla durata dell’aritmia*
I C
FA di durata > 48 in paziente già in appropriata terapia anticoagulante orale
I C I C
FA di durata > 48 ore, previa adeguata terapia anticoagulante orale per almeno 3 settimane**
I C
FA in presenza di preeccitazione ventricolare
IIa C
FA sintomatica quando i periodi di ritmo sinusale tra una CVE e l’altra sono di breve durata, nonostante trattamento farmacologico antiaritmico adeguato
III C III C
FA in presenza di ipokaliemia e intossicazione digitalica
III C
*Se durata dell’aritmia non databile o > 48 ore somministrare eparina frazionata e.v. o eparina a basso peso molecolare s.c. e contestualmente iniziare terapia anticoagulante orale. **Se FA recidivante, prima di eseguire nuovamente CVE, iniziare trattamento farmacologico antiaritmico.
Linee guida AIAC 2010
AF, whether paroxysmal, persistent, or permanent, and whether symptomatic or silent, i ifi tl i th i k f th b b li i h i t k N l l AF
significantly increases the risk of thromboembolic ischemic stroke. Nonvalvular AF increases the risk of stroke 5 times and AF in the setting of mitral stenosis increases the risk of stroke 20 times over patients in sinus rhythm. Thromboembolism occurring with AF is associated with a greater risk of recurrent stroke, more severe disability, and mortality. is associated with a greater risk of recurrent stroke, more severe disability, and mortality. Silent AF is also associated with ischemic stroke.
Stroke risk is a continuum and the predictive value of artificially categorizing AF patients into low, moderate, and high-risk strata only has modest predictive value for identifying the ‘high-risk’ category of patients who would subsequently suffer strokes.
La FA è responsabile del 15-18% di tutti i casi di stroke… il rischio annuale di stroke per i pazienti con FA parossistica (2.6-3.2%) è paragonabile a quello dei pazienti con FA permanente
In patients with AF, antithrombotic therapy should be individualized based on shared decision- making after discussion of the absolute and RRs of stroke and bleeding and the patient’s making after discussion of the absolute and RRs of stroke and bleeding, and the patient s values and preference. (Level of Evidence: C) Selection of antithrombotic therapy should be based on the risk of thromboembolism i ti f h th th AF tt i l i t t t (L l f In patients with nonvalvular AF, the CHA2DS2-VASc score is recommended for assessment of irrespective of whether the AF pattern is paroxysmal, persistent, or permanent. (Level of Evidence: B)
2 2
stroke risk. (Level of Evidence: B) For patients with AF who have mechanical heart valves, Warfarin is recommended and the target international normalized ratio (INR) intensity (2.0 to 3.0 or 2.5 to 3.5) should be based
For patients with nonvalvular AF with prior stroke, transient ischemic attack (TIA), or a CHA DS -VASc score of 2 or greater oral anticoagulants are recommended Options include: CHA2DS2-VASc score of 2 or greater, oral anticoagulants are recommended. Options include: Warfarin (INR 2.0 to 3.0) (Level of Evidence: A), Dabigatran (Level of Evidence: B), Rivaroxaban (Level of Evidence: B), or Apixaban. (Level of Evidence: B)
anni ) anni )
4,3% persistente 55 5% t 55,5% permanente
Il punteggio CHA2DS2: 0 per 12 1% Il punteggio CHA2DS2: 0 per 12,1% 1 per 25,3% 2 per 62,6%
46% dei pazienti ha assunto anticoagulanti 37,5% un farmaco antiaggregante piastrinico 16 5% non ha ricevuto alcuna terapia antitrombotica 16,5% non ha ricevuto alcuna terapia antitrombotica.
Studio ISAF (Italian Survey Atrial Fibrillation) - 2013
7148 pazienti con FA non valvolare Terapia antitrombotica: 55 5% d i i ti T i ti l t
Età avanzata abitudine alcoolica
Età avanzata, abitudine alcoolica, procedure a rischio di sanguinamento, scarsa compliance, rischio di traumatismo sanguinamenti traumatismo, sanguinamenti ricorrenti, problematiche ematologiche SOLO IL 60% DEI PAZ CON PREGRESSO ICTUS O TIA HA RICEVUTO TERAPIA ANTICOAGULANTE
ATA-AF study (international Journal of cardiology – 2012)
ACTIVE-W: Atrial fibrillation Clopidogrel Trial with Irbesartan for prevention of Vascular
Events
ACTIVE-A: Clopidogrel + Aspirina versus Aspirina RE-LY: Randomized Evaluation ol Long term anticoagulation therapy (Dabigatran
versus Warfarin)
ROCKET-AF: Rivaroxaban versus Warfarin in NVAF ARISTOTLE: Apixaban versus Warfarin in pazienti con NVAF AVERROES: Apixaban versus Aspirina per pazienti non idonei a Warfarin AVERROES: Apixaban versus Aspirina per pazienti non idonei a Warfarin
Agisce su diversi fattori della coagulazione. Se mantenuto nella finestra terapeutica (INR 2-3) costituisce un valido alleato nella prevenzione delle complicanze tromboemboliche costituisce un valido alleato nella prevenzione delle complicanze tromboemboliche . MA: - Interazioni con numerosi farmaci ed alimenti;
Dabigatran is the first new oral anticoagulant approved by the U S Food and Drug Dabigatran is the first new oral anticoagulant approved by the U.S. Food and Drug Administration (FDA) to reduce the risk of stroke and systemic embolism in patients with nonvalvular AF, and is a direct thrombin inhibitor. Dabigatran was compared with Warfarin in the RE-LY (Randomized Evaluation of Long-Term Anticoagulation Therapy) trial, which was an open-label randomized comparison of Dabigatran (110 mg or 150 mg twice daily in a blinded fashion) with adjusted-dose Warfarin in 18,113 patients over a median follow-up period of 2 years. The mean CHADS2 score was 2.1 and the primary outcome was stroke (of any type) and systemic embolism with any major hemorrhage being the primary safety any type) and systemic embolism, with any major hemorrhage being the primary safety
randomized to Warfarin was 64%. The primary
was assessed first for noninferiority followed by superiority. For the primary outcomes, dabigatran 150 mg twice daily was superior to warfarin, and dabigatran 110 mg twice daily was noninferior to warfarin. Compared with warfarin, the risk of hemorrhagic strokes was also significantly lower (74% lower) with both the 110 mg and 150 mg doses. Major bleeding was significantly decreased with the 110 mg dose but not with the 150 mg dose decreased with the 110 mg dose but not with the 150 mg dose.
p
Rapida fase di distribuzione
Ottobre 2015: FDA approva Idarucizumab antagonista specifico di Dabigatran che mostra g g immediata, completa e duratura inversione nell’effetto anticoagulante Somministrazione di 5 g di Idarucizumab (due infusioni separate di 2.5 g) in 15 minuti
The second new oral anticoagulant approved by the FDA for reduction of risk of stroke and The second new oral anticoagulant approved by the FDA for reduction of risk of stroke and systemic embolism in patients with nonvalvular AF. The evidence leading to approval was based
the ROCKET AF (Rivaroxaban Versus Warfarin in Nonvalvular Atrial Fibrillation) trial, which was an RCT comparing rivaroxaban (20 mg once daily, 15 mg once f C C / / ) f OC daily if CrCl was 30 mL/min to 49 mL/min) with warfarin among 14,264 patients. ROCKET AF differed from RE-LY in that it selected higher-risk patients with AF (≥2 risk factors for stroke compared with 1 risk factor)… the primary hypothesis was noninferiority…The trial demonstrated noninferiority for rivaroxaban compared with warfarin; however in the intention- demonstrated noninferiority for rivaroxaban compared with warfarin; however, in the intention to-treat analysis, superiority was not achieved (p=0.12). Major bleeding was similar for rivaroxaban and warfarin, but less fatal bleeding and less intracranial hemorrhage, were found for rivaroxaban. At the end of the trial, patients transitioning to open-label therapy had t k ith i b th ith f i Th i k f t k i il f ti t more strokes with rivaroxaban than with warfarin…. The risk of stroke was similar for patients assigned to rivaroxaban and warfarin
Non ha effetti sull aggregazione piastrinica
grave
The third new oral anticoagulant approved by the FDA. In the ARISTOTLE (Apixaban Versus Warfarin in Patients With Atrial Fibrillation) trial, Apixaban (5 mg twice daily) was compared with warfarin in a double-blind RCT of 18,201 patients with AF and a mean CHADS2 score of 2.1. warfarin in a double blind RCT of 18,201 patients with AF and a mean CHADS2 score of 2.1. Apixaban was significantly better than warfarin, with fewer overall strokes (both ischemic and hemorrhagic), systemic embolism, and major bleeding events. Patients treated with apixaban had significantly fewer intracranial bleeds, but gastrointestinal bleeding complications were similar. Patients treated with apixaban had fewer deaths than those on warfarin In ARISTOTLE apixaban’s Patients treated with apixaban had fewer deaths than those on warfarin. In ARISTOTLE, apixaban s benefit was independent of type of AF, risk profile, CHADS2 or CHA2DS2-VASc score, and whether there was a prior stroke. Apixaban was compared with aspirin in the AVERROES study. The mean CHADS2 score was 2 and 36% f th bj t h d CHADS f 0 t 1 Aft f ll f 1 1 th t d 36% of the subjects had a CHADS2 score of 0 to 1. After a mean follow-up of 1.1 years, the study was prematurely terminated owing to the superiority of apixaban compared with aspirin for preventing the occurrence of any stroke or systemic embolism, whereas bleeding risk was similar. Patients with severe and end-stage CKD (serum creatinine >2.5 mg/dL or CrCl <25 mL/min) were g ( g ) excluded from the ARISTOTLE and AVERROES trials. Based on new pharmacokinetic profiles in a limited data set, apixaban prescribing recommendations were revised for use in patients with end- stage CKD maintained on stable hemodialysis with the recommended dose of 5 mg twice daily with a reduction in dose to 2.5 mg twice daily for either ≥80 years of age or body weight ≤60 kg. For reduction in dose to 2.5 mg twice daily for either ≥80 years of age or body weight ≤60 kg. For patients with severe or end-stage CKD not on dialysis a dose recommendation was not provided. There are no published data for the use of apixaban in these clinical settings.
Peso del paziente dipendente (<50 >120 necessita aggiustamento di dose)
anni ) anni )
4,3% persistente 55 5% t 55,5% permanente
Il punteggio CHADS2: 0 per 12,1% 1 per 25,3% 2 per 62,6%
46% dei pazienti ha assunto anticoagulanti 37,5% un farmaco antiaggregante piastrinico , gg g p 16,5% non ha ricevuto alcuna terapia antitrombotica.
Studio ISAF (Italian Survey Atrial Fibrillation) - 2013
16,5% non assunto alcuna terapia antitrombotica
In patients with nonvalvular AF, the CHA2DS2-VASc score is recommended for assessment of stroke risk. (Level of Evidence: B) For patients with nonvalvular AF with prior stroke, transient ischemic attack (TIA), or a CHA2DS2-VASc score of 2 or greater, oral anticoagulants are recommended. Options
2 2
g , g p include: Warfarin (INR 2.0 to 3.0) (Level of Evidence: A), Dabigatran (Level of Evidence: B), Rivaroxaban (Level of Evidence: B), or Apixaban. (Level of Evidence: B) Il punteggio CHA2DS2 era: 0 per 12,1% 1 per 25,3% 2 per 62,6%
37,5% ha assunto farmaco antiaggregante piastrinico A i i i ff ti i ti t k i th >75 f d Aspirin was ineffective in preventing strokes in those >75 years of age and did not prevent severe strokes
Clopidogrel plus aspirin was evaluated for stroke prevention in the ACTIVE-W trial…. proved inferior to Warfarin (target INR 2.0 to 3.0) in patients with a mean CHADS2 score
patients with AF The results of ACTIVE-W and ACTIVE-A demonstrate that adjusted-dose warfarin for stroke prevention is significantly better than clopidogrel plus aspirin, and clopidogrel plus aspirin is superior to aspirin alone. The latter benefits are d d b th i ifi t i i j bl di t dampened by the significant increase in major bleeding events.
46% ha assunto un anticoagulante
In patients with AF, antithrombotic therapy should be individualized based on shared decision-making after discussion of the absolute and RRs of stroke and bleeding, and the patient’s values and preferences. (Level of Evidence: C) In patients with nonvalvular AF, the CHA2DS2-VASc score is recommended for assessment of stroke risk. (Level of Evidence: B) For patients with AF who have mechanical heart valves warfarin is recommended and the target For patients with nonvalvular AF with prior stroke transient ischemic attack (TIA) or a CHA DS For patients with AF who have mechanical heart valves, warfarin is recommended and the target international normalized ratio (INR) intensity (2.0 to 3.0 or 2.5 to 3.5) should be based on the type and location of the prosthesis. (Level of Evidence: B) For patients with nonvalvular AF with prior stroke, transient ischemic attack (TIA), or a CHA2DS2- VASc score of 2 or greater, oral anticoagulants are recommended. Options include: warfarin (INR 2.0 to 3.0) (Level of Evidence: A), dabigatran (Level of Evidence: B), rivaroxaban (Level of Evidence: B), or apixaban. (Level of Evidence: B) For patients with nonvalvular AF unable to maintain a therapeutic INR level with warfarin, use of a direct thrombin or factor Xa inhibitor (dabigatran, rivaroxaban, or apixaban) is recommended. (Level of Evidence: C) Renal function should be evaluated prior to initiation of direct thrombin or factor Xa inhibitors and should be re-evaluated when clinically indicated and at least annually. (Level of Evidence: B)
Primo studio osservazionale internazionale (approvato EMA) prospettico di un NAO per la
European Heart Journal Advance Access published September 1, 2015
Primo studio osservazionale internazionale, (approvato EMA), prospettico di un NAO per la prevenzione dello stroke in pazienti del mondo reale con FANV. 6784 pazienti arruolati - 5336 (78.7%) 20 mg Rivaroxaban ( %)
(0.5%) Altre dosi Età media 71 5 anni Età media 71.5 anni CHA2DS2 2.0 <ROCKET-AF 3.5 CHA2DS2VASc 3.4 ±RE-LY / ARISTOTLE Stroke 0.7 paz/100/anno inferiore a ROCKET-AF, RE-LY, ARISTOTLE (1.7) Emorragie maggiori 2.1 paz/100/anno inferiore a ROCHET-AF, RE-LY, ARISTOTLE (3.6) Per emostasi in corso di terapia: sospensione del farmaco, Concentrato di Complessi Protrombinici, Ac Tranexemico, Etamsilato Maggiore aderenza terapeutica (monosomministrazione)
con tassi di sanguinamenti maggiori pari al 2,1%/anno e tassi di stroke/embolia sistemica al 0.8%/anno e riduzione delle emorragie digestive (0.9%/anno); al 0.8%/anno e riduzione delle emorragie digestive (0.9%/anno);
sanguinamento maggiore o mortalità per tutte le cause mentre ricevevano Rivaroxaban;
mondo reale, pari all’80% nel periodo di un anno di osservazione e più del 75% dei pazienti si sono detti “molto soddisfatti” o “soddisfatti” dal loro trattamento. pazienti si sono detti molto soddisfatti o soddisfatti dal loro trattamento. ROCKET-AF CHA2DS2 medio 3,5 (range 2-6) XANTUS CHA2DS2 medio 2,0 (range 0-6) Rivaroxaban ha dati a supporto in tutto lo spettro di valori di CHADS2 (fermo restando che il farmaco rimane approvato per la prevenzione dello stroke in pazienti con FANV e uno o più fattori di rischio). uno o più fattori di rischio).
Atrial Fibrillation Registry for Ankle-Brachial Index Prevalence Assesment Collaborative Italian Study Intern Emerg Med (2014)
Intern Emerg Med (2014)
Nord 61% - Centro 60% - Sud 53%
Nord 18% - Centro 24% - Sud 35% Terapia antiaggregante Nord 18% Centro 24% Sud 35%
Nord 79% - Centro 64% - Sud 59% Soltanto il 60% dei pazienti ha ricevuto terapia antitrombotica adeguata (dati congruenti con altri studi clinici) Considerare l’uso dei NOAC come alternativa applicabile per la prevenzione del rischio tromboembolico Aumentare l’aderenza? Educazione del paziente Livello socioeconomico
Quote di mercato AC Lazio – agosto 2015
13% 30% 13% 32%
Coumadin NAO Altri AC
25% 32%
Sintrom
25%
25% 15 9% 18,3% 19,9% 20% 12,3% 14,1% 15,9% 15% mercato NOA 8,0% 10,6% 7,6% 8,3% 10% Quota di Xarelto Pradaxa Eliquis 3,2% 5,4% 2 7% 3,9% 4,9% 5,6% 6,5% 2 7% 3,7% 4,6% 5,2% 5,4% 5,6% 5,8% 6,2% 6,6% 2 9% 3,5% 4,5% 5,1% 5% 0,4% 1,6% 2,7% 2,7% 0,0% 0,1% 0,7% 1,4% 2,1% 2,9% 0%