heart failure Flashcards
what is HF
heart cant pump enough blood to meet metabolic demand, = decreased cardiac output
what is EF
ejection fraction = how much blood ventricle pumps out in contraction
HFw/REF
heart failure with reduced ejection fraction <40% ef means left ventricle impaired contraction
hfw/pEF
hf with preservesd ef - impairedleft ventricular relaxation w/ evidence diastolic function
normal EF
50-70%
ef calc
total amount ejected/ total blood in ventricle x 100
symptoms and risk
pink tinge cough froth, dyspnea , swollen ankle and legs , fatigue reduce exercise tolerance
DM THYROID MI , AF HTN
risk: FAILURE F= atty heart valve, arrhythmia, infarction, uncontrolled htn ,recreational drugs, evaders
diagnosis biomarker
NT pro BNP, ecg ,cxr - large heart? pulmonary crackles?
Left sided HF symptoms
pulmonary
DROWNING
D=yspnoea R= rales, orthonea (drown), nocturnal paroxysmal dyspnoea, N=agging cough I=nc HR W= weak heart g=ain weight
rIGHT sided hf
peripheral symptoms
SWELLING
swelling arm and leg, w= e=pitting edema
Lethargic Large jugular irregular hrNocturnia , girth size in
classification of HF
NYHA fuunctipnal classification defines progression Hf according to severity symptoms linked to physical activity
stable/ chronic HF
symptoms unchanged 1+ months
Tx ment algorithm LVHF <EF 40%
1)congestion? Does patient need diuretic (breathlessness and edema)
loop preferred (bumetanide, furosemide, torosemide) or
tzd (only if mild edema and egfr >30)
2) improve survival?1st line : acei/arbs +beta blocker
beta blocker licensed (candersartan valsartan) beta blocker (bisoprolol, carvedilol all stages) if mild mod stable hf age 70+ then nebivolol
(MAKE SURE TITRATE BOTH TO MAX TOLERATED DOSE)
3)patient not imPROVE add aldosterone antagonist (spiranoactone or eplerenone) to acei/arb +beta blocker
NEXT STAGES BELOW UNDER SPECIALIST
4) If patient cant tolerate acei/arb in 1st line give hydralazine and nitrate - esp in carribean and African
5) if EF <35% give sacubitirl / valsartan (entresto)
6) intensification if with standard treatment add on Ivrabradine if in sinus rhythm HR >70 BPM and ef <35- add ivrabradine
or add digoxin (in worsening or severe hF - does not reduced mortality
other options with specialist- implantable defibrillator implant or resynchronisation therapy
monitoring in HF
acei/arb and AA : K+ and Na+ renal function and bp
1-2 weeks before start and each titration once target max reach monitor every 3 months and then every 6 months (and in acute illness)
BB- hr, bp , and symptom control at intitiation and titration
ckd- lower dose and slower titration of ace, aa, and digoxin
med to avoid HF
nsaid - nephrotoxic, corticosteroid (low dose- short period) , antacid high na+, soluble analgesic, rate limit ccb avoid and short acting ccb (i.e nifedipine nicardipine diltiazem or verapamil), ANTIARRYTHMIC i.e fleicainde and dronedarone, pioglitazone
CHD with preserved HF
tx low dose medium diurectic
digoxin in HF
- doesn’t require plasma monitoring , reduces exacerbation of symptoms and hospitalisation not mortality
vaccines in HF and lifestyle
influenza and pneumococcal, weigh daily see if increase in weight= worsening symptoms , decrease cffirene and salt intake. signs of deterioration = inc breathless decreased exercise tolerance , weight gain 2+kg in 2 days worsen oedema, or new nocturnal dyspnoea
Use of diabetic medication in HF
SGLT2
can be used as add on therapy to acei/arb +beta blocker+ AA+ sglt2 i.e. 10mg dapagliflozin
RI and HF
lower dose SGLT2, ACEI ARB, AA, ENTRESTO digoxin start low go slow in egfr 30-45