Cardiology Flashcards
(274 cards)
TIMI Risk Score
Thrombolysis In Myocardial Infarction
0-2: low risk
3: intermediate risk
4+: high risk
Score of 3 or more have greater benefit from LMWH, GP IIb/IIIa inhibitors, and invasive strategies for NSTEMI/UA only!
Only use for NSTEMI/UA!
GRACE Risk Score
Global Registry of Acute Coronary Events
> 140: high score, qualifies for early invasive strategies
UA vs NSTEMI
NSTEMI has positive biomarkers (UA has none)
NSTEMI causes myocardial injury
Performance measure for time to PCI
90 minutes
Performance measure for fibrinolytic therapy
If PCI cannot be done within 120 minutes, then door-to-needle time of 30 minutes for fibrinolytic therapy
NSTEMI Ischemia Guided Antiplatelet & Anticoag regimen
Aspirin
Clopidogrel or Ticagrelor
Enoxaparin, fondaparinux, UFH
NSTEMI Invasive Management Antiplatelet & Anticoag regimen
Aspirin
Ticagrelor > Prasugrel > Clopidogrel
GP IIb/IIIa inhibitor if high risk
Enoxaparin, bivalrudin, UFH
STEMI PCI Antiplatelet &Anticoag management
Aspirin
Clopidogrel, prasugrel, or ticagrelor
GP IIb/IIIa inhibitor if high risk
UFH, bivalrudin
STEMI + Fibrinolytic Antiplatelet & Anticoag management
Aspirin
Ticagrelor > clopidogrel
GP IIb/IIIa inhibitor if high risk
UFH, enoxaparin, fondaparinux
Clopidogrel load, maintenance dose, surgery hold time
300-600mg load
75mg daily
5 days
Prasugrel load, maintenance dose, surgery hold time
60mg load
10mg daily
5mg daily if <60kg, >/= 75 y/o
7 days
Ticagrelor load, maintenance dose, surgery hold time
180mg load
90mg BID
May be reasonable to go to 60mg BID after 1 year
3-5 days
Clopidogrel box warning, contrainidications, pertinent DDI
BBW: CYP2C19 polymorphisms
CI: Active bleeding
DDI: esomeprazole/omeprazole (use pantoprazole, rabeprazole); increased bleeding w/ NSAIDs, OAC, O3FA
Prasugrel box warning, contraindications, pertinent DDI
BBW: age-related bleeding, CVA/TIA
CI: Active bleeding, CVA/TIA
*Do not give as load until know cardiac anatomy
DDI: increased bleeding with NSAIDs, OACs
Ticagrelor box warning, contrainidcations, pertinent DDI
BBW: aspirin dosing >100mg
CI: Active bleeding, ICH, severe hepatic disease
DDI: strong CYP3A4 inhibitors/inducers; DNE simva/lova 40mg; increased bleeding with NSAIDs, OACs
Cangrelor dosing
IV P2Y12 inhibitor
30 mcg/kg IV bolus followed by 4 mcg/kg/minute infusion
Eptifibatide dosing
180mcg/kg IV bolus x2 10 min apart, then 2mcg/kg/min for 18-24 hours. Initiate after first bolus.
CrCl < 50ml/min: reduce by 50%
Hemodialysis: avoid (not studied SCr >4)
Tirofiban dosing
25 mcg/kg IV bolus over 3 minutes, then 0.15 mcg/kg/min for 18 hours
CrCl </= 60 ml/min: reduce by 50%
UFH dosing NSTEMI
60 units/kg IV bolus (max 4000 units) then 12 units/kg/hr (max 1000 units/hr) for 48 hours
UFH dosing PCI with GP IIb/IIIa inhibitor
50-70 unit/kg bolus
UFH dosing PCI without GP IIb/IIIa inhibitor
70-100 units/kg IV bolus
Enoxaparin dosing NSTEMI
1mg/kg SC q12H
30mg IV bolus
CrCl < 30 ml/min: 1mg/kg SC daily
Enoxaparin dosing NSTEMI PCI
If last dose > 8 hours ago, 0.3 mg/kg IV bolus
CrCl <30 ml/min: 1mg/kg daily
Enoxaparin dosing STEMI PCI
30mg IV bolus, followed immediately by 1mg/kg SC q12H (not to exceed 100mg on first two doses)
If > 75 y/o, omit bolus, 0.75mg/kg q12H (not to exceed 75mg on first two doses)
CrCl < 30 ml/min: 1 mg/kg daily