Cardiology Flashcards
Give an approach to picking a non-invasive test for CAD

List the absolute contraindications to EST
Mnemonic: I DO NOT STRESS
- Inflammation (acute myocarditis, pericarditis)
- Dissection (acute aortic dissection)
- Ongoing unstable angina
- No consent
- Ongoing MI (within 2 days)
- Thrombosis (acute PE, pulmonary infarction, DVT)
- Severe AS (symptomatic)
- Technical issues (ECG changes, etc..)
- Rhythm (uncontrolled, hemodynamically significant arrythmia)
- Endocarditis (active)
- Systolic dysfunction (decompensated CHF)
- Slow (physical limitations)
What is required to achieve a maximal stress test
Should reach 85% of age-predicted maximal HR*
*max HR=220-age
What constitutes a positive EST?
- ≥1mm STE
- ≥1mm STD (horizontal or downsloping)
List high-risk features on EST?
- Duke threadmill score -11 or less
- <5 METs achieved
- Low threshold angina/ischemia
- STE
- Severe STD ≥ 2mm
- Ischemia on ≥5 leads
- Ischemia ≥3min into recovery
- Abnormal BP response
- Failure to achieve SBP>120
- Drop in BP >10
- Ventricular arrhythmia
List 2 things that can cause a false-negative result on Persantine myooview
- Drug interactions with dipyridamole
- Caffeine
- theophylline
- Severe flow limiting triple vessel or LM disease (balanced ischemia)
What are contraindications to a Persantine myoview
- Active or severe asthma or COPD
What is the reversal agent for dipyridamole
Aminophylline
What is the coronary artery calcium score and what is it used for
It is used to further risk stratify patients with intermediate risk FRS patients >40 who are not otherwise candidates for statins. Can also be considered for low-risk FRS if FMHx of premature CVD and genetic DLP
CAC>100 = start statin regardless of FRS
List contraindications to CTCA
- ACS
- Severe structural heart disease (AS or HOCM)
- Usual CT precautions
How should chronic stable CAD be managed?
- Treat symptoms with medical therapy first
- ASA + Statin
- Plavix monotherapy if ASA intolerant
- Consider revascularization if refractory symptoms, high risk structural disease (i.e LM disease), LV dysfunction, severe MR
What treatments offer a symptomatic benefit in chronic stable CAD?
- Beta blockers
- CCB
- Nitrates
What therapies help patients with chronic stable CAD live longer
- Smoking cessation, exercise, diet
- ?cardiac rehab
- Risk factor optimisation
- HTN
- DLP
- DMT2
Which patients with stable chronic CAD should be put on an ACEI?
- HTN
- DM
- EF<40
- CKD
- Reasonable for ALL patients
Which patients with chronic stable CAD should be on a BB?
EF<40 regadless of Sx
When should CABG be considered in chronic stable CAD?
- L main disease
- MV disease with DM
- Multivessel disease with LV dysfunction/CHF
What is the advantage of CABG over PCI?
Less repeat revascularisation, no clear mortality benefit
What medications should be given immediately to all patients with ACS?
- Antiplatelets
- ASA + Second agent (Ticagrelor, Clopidogrel, Prasugrel)
- Anticoagulation
- UFh, LMWH, Fonda
- Antianginal
- BB
- PRN nitrates
- (sparingly) PRN opioids
What are the contraindications to using Ticagrelor initially in ACS
- Previous intracranial hemorrhage
- Thrombolysis
- Active pathological bleeding
- moderate to severe hepatic impairment
- Combination with CYP34A inhibitors (ketonazole, clarithromycin, ritonavir…)
- Only Clopidogrel has been studied in elective PCI
- If patient is concurrently on DOAC, use clopidogrel
What antiplatelet agents shouls be used after thrombolysis
ASA + Plavix
What are the indications to perform primary PCI instead of fibrinolysis in STEMI?
- Timely
- PCI cabable hospital: FMC to baloon time <90min
- non-PCI capable hospital: FMC to balloon time <120 min
- Later presentation (12-24hrs)
- Cardiogenic shock
How quickly should fibrinolysis be administered following FMC?
30 mins
How quickly should a patient recieve PCI following fibrinolysis for a STEMI
24hrs
What is the window to give TNK in the case of a STEMI?
- can be given up to 24hrs




















