Cardiology Flashcards
_____ is the leading cardiovascular cause of death in women
HTN ,MI death is higher in women, single risk factors are worse for women
Lupus/RA increase risk of MI by____
60-100%
Indication for Stress ECHO
baseline bundle branch, fasciular blocks widening QRS, LVH, prior MI T wave depressions, paced rhythm
When to avoid dobutamine ECHO (ionotropy)
HOCM, severe AS , aneurysm
When is dobutamine nuclear perfusion the answer_____
ionotropy/vasodilator (adenosine) contraindication
`When is PET/CT the answer____
Hugely obese patients , gets exact perfusion data. Cardiac MRI when non contraindicated: CKD, pacer
When is coronary CT the answer_____
Low TIMI score, resolved chest pain, isolate trop elevation. FFR CT (FFR<0.8 = significant)is unique newer modality also assessing for flow dynamics pre/post narrowing. TIMI score assesses probability of UA/NSTEMI
Contraindications to TEE
esophageal strictures/varices
When is electrophysiology study the answer
Long term arrhythmia, where there is some plan to ablate : refractory afib/getting ready for maze
Stable Angina: Initiate GDMT_____
Aspirin/B blocker/nitro PRN/statin +/- imdur and Ca2+ blocker –> Ranolazine—> cath
- Basically max out anti-anginals
- If statin not option (myalgia, transaminases): Fibrate/Ezetimibe/PSC9 (Evolocumab)
Medication for refractory anti-anginal pain_____
Ranolazine
For stable angina, there is a difference in survival for PCI versus GDMT___(T/F)
False
For multivessel disease, CABG has been shown to improve mortality over PCI (T/F)
True
NSTEMI vs UA______
Troponin elevation
hypercalcemia EKG_____
Flat T waves, short QT
For STEMI, you can use TPA within ____. Cannot use TpA within ____ months of CVA
12 hours, 3 months
While prasugrel is better than clopidogrel, its worse because of _____
Higher bleeding risk , therefore avoid if age>75. Another option is ticagrelor, but may cause dyspnea
Indications for aldactone in STEMI____
EF<40%
Duration of DAPT if no PCI with DES performed after ACS____
12 months, never prasugrel (only used per-cath for loading)
Indication for Cath in NSTEMI:_______________
hemodynamic instability, refractory chest pain, heart failure, or ventricular arrhythmias, high TIMI score (known CAD, high trop, age>65). Should be performed within 24hrs
If TIMI low, use ischemia guided approach: stress test before Cath
____ poorly defined condition characterized by anginal chest pain in the presence of angiographically normal coronary arteries or insignificant CAD (<50% stenosis).
Cardiac Syndrome X
Patients younger than ___ years with STEMI have a nearly 10% risk for probable or definite familial hypercholesterolemia, and screening for familial hypercholesterolemia should be considered in this population.
50
Diabetics have high rate of stent re-stenosis, ____ (CABG vs PCI) has lowest risk of re-stenosis if applicable
CABG
In the Breathing Not Properly study of patients who presented to the emergency department with dyspnea, patients with heart failure had a mean BNP level greater than _______
600, you need a higher BNP not just a positive BNP for heart failure , BNP is reduced in higher BNP, elevated with age/CKD
ACE/ARB strategy in CHF
The ATLAS trial examined the effects of low-dose versus high-dose ACE inhibitor therapy (lisinopril) in patients with systolic heart failure and found no difference in overall mortality; however, high-dose lisinopril was associated with a significant reduction in the composite endpoint of mortality and hospitalizations from heart failure and for any cause.
On the basis of these results, the general consensus is to uptitrate ACE inhibitors to maximal doses or until the onset of symptomatic hypotension.
Many physicians do not recommend increasing the dosage once the creatinine level rises to 2.5 mg/dL (221 μmol/L) or the estimated glomerular filtration rate falls below 30 mL/min/1.73 m2. The estimated glomerular filtration rate should be monitored for decline during uptitration of ACE inhibitor or angiotensin receptor blocker (ARB) therapy and should be rechecked before discontinuation of these drugs, as other conditions or drugs may confound the assessment of kidney function
ACE adverse effects
bradykinin cough, angioedema ; avoided with ARB
B-blocker strategy in CHF
Uptitrate to goal HR = 60, maximally tolerated
β-Blockers are generally well tolerated in patients with heart failure, but these agents should be initiated only when the patient is euvolemic or nearly euvolemic.
When to use digoxin_____
Concomitant afib, b-blocker ACE trialed , caution with CKD
Imdur/Hydral for CHF when:
Adjunct therapy for Africam, intolerant to ACE/ARB + B-Blocker combination
Indication for Ivabradine______
should be considered for patients who have an elevated heart rate (≥70/min) in sinus rhythm despite maximally tolerated doses of β-blocker therapy.
Therapy for HFpEF________
SGLT-2 : Empagaflozin (EMPEROR-Preserved)
Diuresis for euvolemia
No randomized trial proving benefit of spironolactone, meta-analysis has indicated benefit
Diuresis for CHF Exacerbation: Administration of high-dose diuretics (2.5 times the outpatient oral daily dosage) was associated with increased diuresis but also transient worsening of kidney function.
Indicator ICD in HFrEF_____________
1)EF<35% NYHA Class II-III, after trialing GDMT over 3 month period
2)NHYA Class IV, with plan for transplant or LVAD
Indication for pacemaker in CHF__________
Baseline wide QRS >150, LBBB
EF<35%
*Greatest benefit is patients with LBBB QRS>150
Heart Transplant Candidates
age younger than 65 to 70 years,
no medical contraindications (diabetes with end-organ complications,
malignancies within 5 years,
kidney dysfunction,
other chronic illnesses that will decrease survival), and good social support and adherence.
Because most patients with rejection are asymptomatic, regularly scheduled endomyocardial biopsies are often performed to detect rejection for the first few years after transplant.
Transplant complications
Short Term______
Long Term______
1)CMV infection
2) CAD, Lymphoma secondary to immunosuppression (Tacro/Cyclosporin)
Takutsubo Treatment_____________
GDMT, repeat ECHO 3-6 months
Myocarditis CHF treatment
GDMT
Giant Cell Myocarditis Treatment__________
Giant cell myocarditis is also associated with an increased incidence of high-grade atrioventricular block and ventricular arrhythmias. Unlike in acute myocarditis, aggressive immunosuppressive therapy has some benefit and should be initiated in these patients
For this reason, patients with acute heart failure unresponsive to usual care or with accompanying arrhythmias should undergo endomyocardial biopsy for diagnosis. Initial biopsy findings may be negative because of the patchy nature of the inflammation.
nocturnal bradycardia or conduction disturbances may hint at _____
OSA
common medication induced bradycardia____, ______
b blocker, cholinergics (donepezil, neostigmine, pyridostigmine)
Indications for pacemaker:
Symptomatic bradycardia without reversible cause
Permanent atrial fibrillation and symptomatic bradycardia
Alternating bundle branch block
Asymptomatic complete heart block, high-degree AV block, or Mobitz type 2 second-degree AV block
Wide QRS>150 CHF
_________ a disorder characterized by an elevated resting heart rate, with exaggerated increases in heart rate with light activity. The sinus rate typically decreases during sleep, which can be documented with ambulatory ECG monitoring
Inappropriate sinus tachycardia (IST)
Dx: Of exclusion, ambulatory monitor
Tx: exercise therapy/reversible factors –> b blockers –> ivabradine
anti-arrhythmic agent contraindicated with liver disease______
Lidocaine, mexiletine, phenytoin ; also should avoid amiodarone, ranolazine,
anti-arrhythmic agent contraindicated with ischemic heart disease, AV block without pacemaker ______
Class 1A (Procainamide, Quinidine), Class 1C (Flecainide, propafenone)
_______is an intravenous class III potassium channel blocker that is used for pharmacologic cardioversion of atrial fibrillation.
Ibutilide
Preprocedural anticoagulation is reasonable as soon as possible before cardioversion for men with a CHA2DS2-VASc score of 2 or greater and for women with a score of _____ or greater
3
In patients in whom the duration of atrial fibrillation is unclear or in whom atrial fibrillation has lasted longer than 48 hours, anticoagulation therapy for ___weeks is required before cardioversion, and ___ weeks post
3, 4
DOAC/NOAC acceptable anticoagulation for valvular afib (T/F)
False
As with dabigatran, patients taking rivaroxaban have a higher risk for gastrointestinal bleeding compared with those taking warfarin. Apixaban, another oral factor Xa inhibitor, is superior to warfarin for the prevention of stroke and confers less risk for major bleeding, including intracranial bleeding
-So best to choose apixaban
______________ concentrates are recommended for life-threatening bleeding due to rivaroxaban, apixaban, or edoxaban. ______ is a dabigatran-reversal agent available for emergency invasive
Andexanet alfa / 4-factor prothrombin complex
Idarucizumab
If someone is on aspirin and develops Afib, add a NOAC for non-valvular Afib (T/F)
False: Discontinue aspirin, can use NOAC alone for CAD/Afib
However patients undergoing PCI:
In patients with atrial fibrillation undergoing percutaneous coronary intervention for acute coronary syndrome, both anticoagulant and antiplatelet therapies are necessary, and these patients with a CHA2DS2-VASc score of 2 or greater can be treated with “double therapy” (clopidogrel or ticagrelor plus warfarin, rivaroxaban, or dabigatran : Plavix/Warfarin , Plavix/Xarelto
Patients with infrequent atrial fibrillation who have no structural heart disease or conduction disease (Low risk patient, basically no one) often benefit from a “pill-in-the-pocket” approach. With this strategy, patients take ______ at the onset of an episode of atrial fibrillation.
a class IC drug (flecainide or propafenone)
It is assumed they also have a b-blocker on board however
Rhythm control instead of rate control is a preferred strategy for a.flutter ___(T/F)
True
Typical flutter rate: 250-300 (2 boxes) 2:1 flutter
Catheter ablation is the definitive treatment of typical atrial flutter, owing to a very high success rate (>95%) and low complication rate.
Aflutter does not terminate with adenosine ____ (T/F)
True
Tachycardias that terminate with adenosine are typically AV node dependent (AVNRT and AVRT), whereas continued atrial activity (P waves) during AV block is consistent with atrial flutter or atrial tachycardia
AVNRT (Most common cause of SVT) is the result of a reentrant circuit within the AV node that uses both the fast and slow pathways. - No p waves, short RP
- Re-entry pathway
-AVNRT may be terminated with vagal maneuvers or adenosine. AV nodal blocking therapy with β-blockers or calcium channel blockers is used to prevent recurrent AVNRT. In patients with recurrent AVNRT and patients who do not tolerate or prefer to avoid long-term medical therapy, catheter ablation should be considered. Catheter ablation of AVNRT has a high success rate, although it is associated with a 1% risk for injury to the AV node necessitating pacemaker implantation.
AVRT : Delta wave (accessory pathway)
High PAC burden is associated with increased risk for ______
Afib
Wolf Parkinson treated with ______
First-line therapy for patients with Wolff-Parkinson-White syndrome is catheter ablation; antiarrhythmic therapy is reserved for second-line therapy.
Among wide complex tachycardias, Vtach most associated with _______
Structural heart disease (95%)