FN: Chronic Heart Failure Flashcards
Diagnosis of CCF
Famingham Criteria
2 major criteria or 1 major + 2 minor
Major criteria
PND \+ve abdominojugular reflux Neck vein distension S3 Basal creps Cardiomegaly Acute pulmonary oedema Increase CVP (>16cm h20) Wt. oss >4.5 kg in 5d secondary to treatment
Minor criteria
Bila ankle oedema SOBOE Increased HR >120 Nocturnal cough Hepatomegaly Pleural effusion 30% reduced vital capacity
Investigations
Bloods
CXR
ECG
Echo
Bloods included
FBC U ad E TFTs Glucose lipids BNP or NTproBNP
CXR
ABCDE A - alveolar shadowing Kerly B lines Cardiomegaly (cardiothoracic ratio >50%) Upper lobe Diversion Effusions Fluid in the fissures
ECG
Ischaemia
Hypertrophy
AF
Echo
The key investigation
- Global systolic and diastolic function - ejection fraction normally - 60%
- Focal/global hypokinesia
- Hypertrophy
- Valve lesions
- Intracardiac shunts
B-ype Natriuretic Peptide: BNP or NtproBNP secreted from
Ventricles in response to Increase pressure - stretch Tachycardia Glucocorticoids Thyroid hormones
B-ype Natriuretic Peptide: Actions
- Increase GFR and reduced renal Na reabsorption
2. Redcued preload by relaxing smooth muscle
BNP is a biomaker of
Heart Failure
BNP markers
Increased BNP (>100) better than any other variable and clinical judgement in diagnosing heart failure
BNP correlates with
LV dysfunction
i.e. increase most in decompensated heart failure
Increased BNP = increased mortality
BP <100 exlcudes
heart failure (96% NPV)
BNP also increases in
RHF: cor pulmonale, PE
New york Heart Association Classification
- No limitation of activity
- Comfortable @ rest, dyspnoea on ordinary activity
- Marked limitation of ordinary activity
- Dyspnoea @ rest, all activity - discomfort
General Management
Primary/Secondary Cardiovascular risk
1. Stop smoking
2. REduced salt intake
3. Optimise wt:: increase or decrease - dietician
Supervised group exercised based rehab programme
4. Aspirin
5. Statins
Treatment percipitants/Causes
Underlying cause:
- Valve disease
- Arrhythmias
- Ischaemia
Exacerbating factors
- Anaemia
- Infection
- Increase BP
Specific Management
ACEi Beta blocker Diuretics Spironolactone Digoxin Vasodilators
ACEi/ARB:
e.g. lisinorpil or candesartan (if there is a cough
If patient intolerant to CE-i and ARBs (vasodilators)
Hydralazine + ISDN - also reduces mortality when added to standard therapy (including ACE-i) in Black patients with heart Failure.
Beta blockers
Carvedilol (3.125 mg/12h) or bisoprolol (start low and go slow)
Switch stable pts taking a beta blockers for a comorbidity to a beta blocker licensed for heart failure
Loop diuretic
Frusemide (40 mg) or bumetanide
Spiromolactone/eplerenone
Watch K carefully (on ACEi too)
1st line
ACEi/ARB
beta blocker
Loop diuretic
2nd line
Spiroolactone/eplerenone
ACEi + ARB
Vasodilators
3rd line
Digoxin
Cardiac resynchronisation therapy ± ICD
Other considerations
Monitoring:
- BP: may be very low
- Renal function
- Plasma K
- Daily wt
Use amlodipine for comorbid HTN or angina
Avoid verapamil, diltiazem and nifedipine (short acting)
Invasive therapies
Cardiac resynchronisation ± ICD
Intra-aortic balloon counterpulsation
LVAD
Heart transplant (70% 5 yrs)