Heart Failure Part 2 Flashcards
What are the goals of therapy for HFpEF
- Reduce HF symptoms
- Increase functional status (NYHA class)
- Reduce hospitalization risk
No clear evidence that pharmacologic therapy, diet, or other therapies reduce mortality risk for these patients
How is hospitalization risk reduced?
- Lifestyle modification (exercise, decreased fat and sodium diet)
- Congestion control
- Rhythm control
- BP and comorbidity management
What are the key components of management of HFpEF?
- Ongoing evaluation and monitoring
- Follow up visits every 1-6 months, depending on comorbid conditions (HTN, CAD, CKD, obesity), medication response, etc.
- Chronic disease management
- Lifestyle changes
Overall, what recommendations would you make for a patient with HFpEF?
- Weight and blood pressure log
- Exercise training
- Caloric restriction (specifically sodium following rule of 2s–> <2 mg Na, <2 L fluid)
- Coronary revascularization in presence of significant disease
- Appropriate pharmacologic therapy
- Cardiac rehab
What medications can be considered for management of HFpEF?
- Diuretics for congestion and edema
- SGLT2i
- ACEi, ARB, thiazides, MRAs, ARNis (for HTN)
- BBs for HTN, HR, and rhythm control
How would you manage common comorbidities of HFpEF?
- Ischemia –> appropriate management
- Dyslipidemia–> statins
- DM –> appropriate agent
What are the SGLT2i?
- Jardiance
- Farxiga
- Invokana
- Inpefa
According to the AHA/ACC guidelines, what medication should be started first as needed for HFpEF?
Diuretics –> thiazides or loops
A patient with an ejection fraction of >50% who is symptomatic is started on a thiazide diuretic and maxed out. The provider is now thinking about adding another medication. Which medications could be added that are 2a recommendations?
SGLT2i
* Jardiance
* Farxiga
If a patient has an ejection fraction >50%, they have HFpEF
A patient with an ejection fraction of >50% who is symptomatic is maxed out on Jardiance and a thiazide diuretic. The provider is now considering adding another medication to their regimen. Which medications are 2b recommendations and could be added?
ARNis
* Entresto
MRA
* Spironolactone
* Eplerenone
ARB
* -sartans
What medication is the most effective means of providing symptomatic relief to patients with heart failure through improvement of dyspnea and fluid overload
Diuretic therapy
What diuretics should be used for mild fluid retention?
Thiazides
* Hydrochlorothiazide
* Metolazone
* Chlorthalidone
What should be monitored with thiazide diuretics?
- Renal function
- Potassium
What diuretics should be used with severe fluid retention/symptoms?
Oral loop diuretics
* Furosemide
* Torsemide
* Bumetanide
What is the BBW for loop diuretics?
Profound diuresis and electrolyte abnormalities
What do you need to monitor with use of loop diuretics?
- Renal function
- Potassium
If symptoms continue and you have a patient on a diuretic, what can you do? What should you be aware of when doing this?
- You can combine a thiazide with a loop if continued symptoms
- Be cautious of massive diuresis and electrolyte abnormalities
What is the most common combo of loop and thiazide diuretics for severe HFpEF?
- Metolazone and furosemide
What should be initiated with diuretic therapy?
Oral potassium (potassium chloride)
What needs to be monitored with diuretic therapy?
- Daily weight to assess diuresis
- BMP within 1 week of diuretic therapy initiation or dosage change
What are the SGLT2is?
-gliflozins
Dapagliflozin, Empagliflozin, canagliflozin, sotagliflozin
What is the function of SGLT2i in HF?
Reduces risk of CV death and hospitalization for HF regardless of diabetes status through uncertain mechanism
What is the mechanism of action of SGLT2i in HF?
- Leads to osmotic diuresis and natriuresis –> decreasing arterial pressure and stiffness –> shifts to ketone-based myocardial metabolism
- Reduction of preload and afterload, blunting of cardiac stress/injury with less hypertrophy and fibrosis
What are the goals of therapy for HFrEF?
- Clinical improvement, stabilization, and reduction in risk of morbidity and mortality
How is HFrEF managed overall?
- Correction of systemic disorders or underlying causes (thyroid, DM, HTN, COPD, valvular disease, CAD)
- Lifestyle modifications/nonpharmacologic therapies
- Pharmacologic management
What are lifestyle modifications/nonpharmacologic therapies for HFrEF management?
- Tobacco and alcohol cessation
- Sodium restriction
- Daily weight monitoring
- Weight loss in obese patients
- Increase exercise/cardiac rehab
What are the goals of pharmacologic management of HFrEF?
- Improve symptoms
- Slow or reverse deterioration in myocardial function
- Reduce mortality
How should pharmacologic therapy be initiated for HFrEF?
- Initiated at low doses and titrated to target doses based on tolerability
What is the first step in pharmacologic treatment of HFrEF (LVEF <40%)?
Establish diagnosis, address congestion, and initiate GDMT–> all class I and can start all at once or add over time
* ARNi in NYHA II-III; ACEi or ARB in NYHA II-IV
* Beta blocker
* MRA
* SGLT2i
* Diuretics as needed
A patient is initiated on one of the class I recommendations previously mentioned for HFrEF and now has a LVEF >40, what should you do?
Reassess and optimize dosing, compliance and patient education
A patient is initiated on one of the class I recommendations for HFrEF and still has a LVEF of <40%. What should you do now?
- Give a nitrate if AA
- If >1 year survival and LVEF <35%, NYHA 1-III recommend ICD
- If NYHA II-III; ambulatory IV; LVEF <35%; NSR and QRS >150 ms with LBBB CRT-D
CRT-D = cardioresynchronization therapy
If a patient is started on 1st line medications for HFrEF and specific patient scenarios are considered and they continue to have refractory HF stage D, what will you do?
- Durable MCS
- Cardiac transplant
- Palliative care
- Investigational studies
MCS = mechanical circulatory support
What are recommended classes in HFrEF pharmacologic therapy that are class 1?
- Loop diuretics
- ACE inhibitors or ARBs
- Beta blockers
- Aldosterone antagonists
- SGLT2i
- Entresto
- Hydralazine/nitrate combination
What are recommended drugs for HFrEF that are class 2 recommendations?
- Corlanor (2a)
- Digoxin (2b)
What is the use of loop diuretics in HFrEF?
Symptom relief due to fluid overload
What are the common loop diuretics used in HFrEF?
- Furosemide
- Torsemide
- Bumetanide
What is the function of ACE inhibitors in HFrEF?
Improve survival (class I indication)
What are common ACE inhibitors that are used for HFrEF?
- Enalapril
- Captopril
- Lisinopril
How should you dose ACE inhibitors for HFrEF?
- Start low and titrate over one to two week intervals
What should be monitored with ACE inhibitor use in HFrEF?
BMP at baseline to evaluate potassium level and renal function, then again in 1-2 weeks
When are ARBs a class I indication in HFrEF?
Only if patients do not tolerate ACE inhibitors
When are ARBs a class II indication?
- If patient already on an ARB at time of diagnosis of HF (IIA)
- IIB to add to ACE inhibitor if aldosterone antagonist contraindicated
When are ARBs a class III (harmful) indication?
To add to ACE inhibitor and aldosterone antagonist
WILL CAUSE KIDNEY FAILURE DO NOT DO THIS
What is the function of BB in HFrEF?
Improves survival, class I indication, as additive to ACE inhibitors
Which beta blockers are used in HFrEF?
- Carvedilol
- Metoprolol succinate
- Bisoprolol
When would you use caution with beta blockers?
- Bradycardia
- First degree AVB
- Hx of asthma or symptomatic hypotension
How should you dose beta blockers for HFrEF?
start low and titrate up
This medication is a class I indication and prolongs survival and reduces cardiac remodeling
Aldosterone antagonists
What are common aldosterone antagonists used in HFrEF?
Spironolactone and eplerenone
When are aldosterone antagonists contraindicated?
- Patients with potassium >5 and eGFR <30
What is entresto?
- Combination sacubitril and valsartan
- Neprilysin inhibitor, which limits breakdown of natriuretic peptides
When is entresto contraindicated?
If h/o angioedema with ACEI
When would entresto be added to a drug regimen for HFrEF?
- For patients with continued symptoms after an appropriate dose of ACEI and BB
- Used in place of ACEI or ARB
How long do you have to wait after use of ACEI to start entresto?
- 36 hour washout period prior to starting entresto
What are benefits and risks of entresto?
- Reduces hospitalizations and HF death
- Can lead to hypotension and hyperkalemia