Teach heart Failure Flashcards

1
Q

Most common cause of HF

A

Coronary artery disease

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2
Q

Etiologies of heart failure per EF

A
Depressed EF <40
CAD
HTN 
Valvular disease
Dilated C 
Toxic CM
For pulmonary
Preserved EF>40-50%
Aging
Primary hypertroohy
Restrictive CM
Fibrosis

High output states
BAHA
Beriberi anemia hyperthyroid AV fistula

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3
Q

Pathophysio heart failure

A

Barorecepyors
Increased sympathetic
Increase renin –> AT2
Increase vasopressin

Dec RBF
Inc aldosterone
In water and Na reabsorption

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4
Q

Cardinal s and s of HF

A

Fatigue

Shortness of breath

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5
Q

Most impressive mech for dyspnea

A

Pulmo congestion accumulation of interstitial fluid

Junta capillary J receptors

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6
Q

Define orthopnea

What is pathophy

A

Dyspnea in recumbent position
Redistribution of fluid from splanchnic circ and lower extremities to central circ resulting in inc Pulmo capillary pressure

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7
Q

Define PND

A

Sob and coughing at night
1-3 h after patient retires

Diff from orthopnea: no relief sitting upright

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8
Q

Abdominojugular reflex

A

15 sec sustained in inc JVP 3 dm water

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9
Q

JVP exam of HF

A

Giant v waves due to tricuspid regurgitation

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10
Q

Pathophy s3 in HF

A

Volume overload

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11
Q

Dx in HF

A

ECG
Car
2d echo
ProBNP

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12
Q

Novel biomarkers in HF

A

ST2

Galectin 3

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13
Q

What is cor pulmonale

A

Altered Arab structure and/or function in the context of chronic lung disease

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14
Q

S/s in cor pulmonale

A

Dyspnea

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15
Q

PE in cor pulmonale

EXG findings

A

Carvallo’s sign of TR

ECG:

  • p pulmonale
  • RAD
  • RV hypertroohy
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16
Q

MC cause of RHF

17
Q

SENIORS study

A

Nebivolol on elderly has no benefit in all cause mortality

18
Q

TOPCAT

A

Aldosterone antagonist therapy

19
Q

Calcium sensitized thanprovide inotropic activity

A

Levosimendan

20
Q

Selective myosin activator prolongs EF

A

Omecamtiv mecarbil

21
Q

The only beta blockers with positive outcomes in HF

A

Carvedilol
Bisoprolol
Metoprolol

22
Q

Changes that occur in the cross bridges in HF

A

Decreased expression: alpha myosin heavy chain

Increased expression: beta myosin heavy chain

23
Q

What is afterload mismatch

A

Increase in wall thinning to match the increase in afterload created by LV dilation leads to functional afterload mismatch

24
Q

What is cheyne stoke respiration associated with?

A

Low cardiac output

Mechanism: increased sensitivity of the respiratory center to arterial pco2

Apneic phase po2 falls pco2 rises

25
Hold standard for assessingLv mass and volumes
MRI
26
Cardiac exam diastolic dysfunction
S4
27
Role of threadmill or bicycle exercise testing
Transplant in peak oxygen uptake <14 ml/kg
28
False negative pro BNP
Obese patients
29
False positive BNP
Renal impairment Age Women more elevated Right sided HF from any cause
30
New biomarkers HF
ST3 | Galectin
31
Prominent v waves in for pulmonale
Tricuspid regurgitation
32
Useful in diagnosis of a 1) acute thromboembolic disease 2) chronic thromboembolic disease 3) ILD
1 spiral CT 2 vQ scan 3 hrct
33
Trials in heart failure | CHARM
Candesartan in Heart Failure—Assessment of Mortality and Morbidity (CHARM) Preserved study showed a statistically significant reduction in hospitalizations but no difference in all-cause mortality in patients with HFpEF who were treated with the angiotensin receptor blocker (ARB), candesartan
34
Trials in heart failure | I-PRESERVE
Irbesartan in Heart Failure with Preserved Systolic Function (I-PRESERVE) trial demonstrated no differences in meaningful endpoints in such patients treated with irbesartan
35
DIG trials
Digitalis Investigation Group (DIG) trial found no role for digoxin in the treatment of HFpEF
36
Trial: SENIORS
Study of the Effects of Nebivolol Intervention on Outcomes and Rehospitalization in Seniors with Heart Failure (SENIORS) trial of nebivolol, a vasodilating beta blocker, the subgroup of elderly patients with prior hospitalization and HFpEF did not appear to benefit in terms of all-cause or cardiovascular mortality
37
Evidence neurohormonal antagonism in heart failur epatients
Meta-analyses suggest a 23% reduction in mortality and a 35% reduction in the combination endpoint of mortality and hospitalizations for heart failure in patients treated with ACEIs. Patients treated with beta blockers provide a further 35% reduction in mortality on top of the benefit provided by ACEIs alone.
38
Associated with reduction in mortality in all stages in symptomatic NYHA VLASS II to IV HFrEF
Mineralocorticoid antagonist spirinolactone and eplerenone
39
Recommendations for ivabradine inpatients with HFrEF
ivabradine was suggested as second-line therapy before digoxin is considered in patients who remain symptomatic after guideline-based ACEIs, beta blockers, and mineralocorticoid receptor antagonists and with residual heart rate >70 beats/min.