Cardiology Diseases Flashcards
Volume Overload HF: Exam/EKG Findings
S3, JVD, narrow PP, pulsus alternans, cool extremities, +/- rales, hepatomegaly (HJ reflex)
Volume Overload HF: Labs/Imaging/BP
BNP >400, ↓Na AND ↑PCWP, ↑EDP
Volume Overload HF: Pathophysiology
Excessive preload → eccentric remodeling → decreased contractility
Volume Overload HF: Etiologies
MR, AR, volume overload, L→R shunt, chronic kidney disease
Volume Overload HF: Treatment/Notes
Stage A: Diuretics (↓preload), beta blockers (↓HR, ↑filling time), ACEi’s/ARBs, statins, aldosterone antagonists (↓afterload),↓Na, exercise +/- anticoag and diabetes control. Stage B: Add ICD if LV systolic dysfunction. Stage C: Add more! Stage D: death or transplant
Pressure Overload HF: Epi
Hypertension
Pressure Overload HF: Symptoms
FACES - Fatigue, Altered Activity, Congestion, Edema, SOB. Can get difficulty sleeping (paroxysmal nocturnal dyspnea), cachexia, orthopnea, Valsalva square wave
Pressure Overload HF: Exam/EKG Findings
S3, JVD, narrow PP, pulsus alternans, cool extremities, +/- rales, hepatomegaly (HJ reflex)
Pressure Overload HF: Labs/Imaging/BP
BNP >400, ↓Na AND ↑BP, ↓SV, ↑PCWP
Pressure Overload HF: Pathophysiology
Excessive afterload → concentric hypertrophy → decreased filling
Pressure Overload HF: Etiologies
HTN, AS, aortic coarctation
Pressure Overload HF: Treatment/Notes
Stage A: Diuretics (↓preload), beta blockers (↓HR, ↑filling time), ACEi’s/ARBs, statins, aldosterone antagonists (↓afterload),↓Na, exercise +/- anticoag and diabetes control. Stage B: Add ICD if LV systolic dysfunction. Stage C: Add more! Stage D: death or transplant
Systolic HF: Epi
All ages
Systolic HF: Symptoms
FACES - Fatigue, Altered Activity, Congestion, Edema, SOB. Can get difficulty sleeping (paroxysmal nocturnal dyspnea), cachexia, orthopnea, Valsalva square wave
Systolic HF: Exam/EKG Findings
S3, JVD, narrow PP, pulsus alternans, cool extremities, +/- rales, hepatomegaly (HJ reflex)
Systolic HF: Labs/Imaging/BP
BNP >400, ↓Na AND ↓BP, ↓SV, ↓CO, ↑PCWP, S3
Systolic HF: Cat
Heart Failure
Systolic HF: Pathophysiology
Decreased contractility ↔ eccentric remodeling
Systolic HF: Etiologies
ischemic cardiomyopathy, viral myocarditis, toxins
Systolic HF: Treatment/Notes
Stage A: Diuretics (↓preload), beta blockers (↓HR, ↑filling time), ACEi’s/ARBs, statins, aldosterone antagonists (↓afterload),↓Na, exercise +/- anticoag and diabetes control. Stage B: Add ICD if LV systolic dysfunction. Stage C: Add more! Stage D: death or transplant
Diastolic HF: Epi
> 60 yo, female
Diastolic HF: Symptoms
Same as systolic HF, but EF is preserved
Diastolic HF: Exam/EKG Findings
S3, S4,JVD, narrow PP, pulsus alternans, cool extremities, +/- rales, hepatomegaly (HJ reflex)
Diastolic HF: Labs/Imaging/BP
BNP >400, ↓Na AND ↓Capacitance, EDPVR shifts up + left, normal EF
Diastolic HF: Cat
Heart Failure
Diastolic HF: Pathophysiology
Decreased filling ↔ concentric hypertrophy
Diastolic HF: Etiologies
HTN, MS, RCM, tamponade, HCM, infiltrative
Diastolic HF: Treatment/Notes
Stage A: Diuretics (↓preload), beta blockers (↓HR, ↑filling time), ACEi’s/ARBs, statins, aldosterone antagonists (↓afterload),↓Na, exercise +/- anticoag and diabetes control. Stage B: Add ICD if LV systolic dysfunction. Stage C: Add more! Stage D: death or transplant
Acute Decompensated HF (ADHF): Symptoms
FACES, paroxysmal nocturnal dyspnea, cachexia, orthopnea, Valsalva square wave, with worsened dyspnea and fatigue
Acute Decompensated HF (ADHF): Exam/EKG Findings
Same as HF, with acute respiratory distress, severe JVD.
Acute Decompensated HF (ADHF): Labs/Imaging/BP
BNP >400, ↓Na
Acute Decompensated HF (ADHF): Cat
Heart Failure
Acute Decompensated HF (ADHF): Pathophysiology
Compensatory mechanisms fail
Acute Decompensated HF (ADHF): Treatment/Notes
Based on ACC Stage: Stage A: Diuretics (↓preload), beta blockers (↓HR, ↑filling time), ACEi’s/ARBs (↓afterload), statins, aldosterone antagonists (↓afterload),↓Na, exercise +/- anticoag and DM mgmt
Stage B: Add ICD if LV systolic dysfunction. Stage C: A
High CO HF: Symptoms
Same as HF
High CO HF: Exam/EKG Findings
Same as HF
High CO HF: Labs/Imaging/BP
BNP >400, ↓Na AND High PP
High CO HF: Etiologies
Anemia, pregnancy, obesity, etc.
High CO HF: Treatment/Notes
Stage A: Diuretics (↓preload), beta blockers (↓HR, ↑filling time), ACEi’s/ARBs, statins, aldosterone antagonists (↓afterload),↓Na, exercise +/- anticoag and diabetes control. Stage B: Add ICD if LV systolic dysfunction. Stage C: Add more! Stage D: death or transplant
Acute Cardiorenal Syndrome: Symptoms
Triad: (1) ↓kidney function: dark urine, low urine output. (2) Therapy-resistant HF: JVD, congestion, PE, rales, ↑BNP (3) Worsening kidney function (↑creatinine)
Acute Cardiorenal Syndrome: Exam Findings
Salt + water retention, congestion, edema, JVD
Acute Cardiorenal Syndrome: Labs
↑Creatinine, BUN (blood urea nitrogen, suggests renal failure)
Acute Cardiorenal Syndrome: Category
Heart + Kidney
Acute Cardiorenal Syndrome: Pathophysiology
Acute cardiac event → ↓CO, ↓renal perfusion, acute kidney injury → inflammation, kidneys ↑BP via RAAS
Acute Cardiorenal Syndrome: Etiologies
MI: ↓CO, vasodilators
Acute Cardiorenal Syndrome: Treatment
What indicates poor prognosis?
Tx: reduce or d/c ACEis, ARBs; titrate diuretics down; consider inotropes, aldosterone antagonists, vasodilators, assist devices, heart ± kidney xplant, dialysis
↑creatinine poor prognosis
Chronic Cardiorenal Syndrome: Symptoms
Triad: (1) ↓kidney function: dark urine, low urine output. (2) Therapy-resistant HF: JVD, congestion, PE, rales, ↑BNP (3) Worsening kidney function (↑creatinine)
Chronic Cardiorenal Syndrome: Exam
What is effect of ACEi?
RAAS-mediated anemia, edema, uremia. ACEi’s cause chronic renal hypoperfusion, sclerosis, fibrosis
Chronic Cardiorenal Syndrome: Labs
↑Creatinine, BUN
Chronic Cardiorenal Syndrome: Cat
Heart + Kidney
Chronic Cardiorenal Syndrome: Pathophysiology
Heart failure (or treatment for it) → ↓CO → ↓renal perfusion → ischemic nephropathy, RAAS kicks in → ↑BP
Chronic Cardiorenal Syndrome: Etiologies
Substances that worsen kidney function
Contrast media, ACEi, diuretics, vasodilators, inotropes will worsen kidney function
Chronic Cardiorenal Syndrome: Treatment
Tx: reduce or d/c ACEis, ARBs; titrate diuretics down; consider inotropes, aldosterone antagonists, vasodilators, assist devices, heart ± kidney xplant, dialysis; ↑creatinine poor prognosis
Acute Renocardiac Syndrome: Symptoms
Dark urine, low urine output, edema
Acute Renocardiac Syndrome: Exam/symtpoms
Volume expansion symptoms, dilated cardiomyopathy
Acute Renocardiac Syndrome: Labs
↑BP ± uremia
Acute Renocardiac Syndrome: Cat
Heart + Kidney
Acute Renocardiac Syndrome: Pathophysiology
Acute renal problem → ↓GFR, oliguria → acute cardiac issues: HTN, HF
Acute Renocardiac Syndrome: Etiologies
Glomerulo-nephritis, etc.
Acute Renocardiac Syndrome: Comorbidity/treatment
Comorbid conditions: smoking, obesity, HTN, dyslipidemia, chronic inflammation
Tx: control BP, add/increase diuretics, treat anemia and Ca++/P+ abnormalities, kidney ± heart xplant, dialysis
Chronic Renocardiac Syndrome: Symptoms
CHF, CAD, arrhythmias
Chronic Renocardiac Syndrome: Exam/Symptoms
Volume expansion symptoms, dilated cardiomyopathy
Chronic Renocardiac Syndrome: Labs
↑BP ± uremia
Chronic Renocardiac Syndrome: Cat
Heart + Kidney
Chronic Renocardiac Syndrome: Pathophysiology
Chronic kidney disease → volume overload
Chronic Renocardiac Syndrome: Etiologies
diabetes, etc.
Chronic Renocardiac Syndrome: Treatment/Comorbidity
Comorbid conditions: smoking, obesity, HTN, dyslipidemia, chronic inflammation
Tx: control BP, add/increase diuretics, treat anemia and Ca++/P+ abnormalities, kidney ± heart xplant, dialysis
Secondary Cardiorenal Syndrome: Cat
Heart + Kidney
Secondary Cardiorenal Syndrome: Pathophysiology
Infiltrative process (e.g. amyloidosis) independently destroys both kidneys + heart
Secondary Cardiorenal Syndrome: Treatment
Treat underlying condition
Pulmonary Venous Hypertension (PVH): Symptoms
What happens to the fingers?
Pulmonary congestion: cough, dyspnea, fatigue, orthopnea, hemoptysis, paroxysmal nocturnal dyspnea
Systemic congestion from RV failure: edema, ascites, RUQ pain (liver congestion), clubbing, cyanosis
Pulmonary Venous Hypertension (PVH): CXR/cath
CXR: ↑pulmonary vasculature in upper lobes → interstitial edema → alveolar edema (“white-out”)
↑LAP + PCWP
Pulmonary Venous Hypertension (PVH): Cat
Heart + Lungs
Pulmonary Venous Hypertension (PVH): Pathophysiology by the numbers
PAP mean of >25mmHg @ rest or >30 with exercise + PCWP or LVED > 15 → vessels hypertrophy, dilate
Pulmonary Venous Hypertension (PVH): Etiologies
↑LA pressure, from any number of left-sided heart pathologies, excess IV fluid, mitral stenosis
Pulmonary Venous Hypertension (PVH): Treatment
Diuretics
Dilated Cardiomyopathy: Symptoms
SOB, fatigue, ↓ET
Dilated Cardiomyopathy: Exam/EKG Findings
S3, left shift of axis, poor precordial R wave propagation, lat.-displaced PMI
Dilated Cardiomyopathy: Imaging/EF
↓EF, LV dilation
Dilated Cardiomyopathy: Cat
Cardiomyopathies
Dilated Cardiomyopathy: Pathophysiology
Systolic dysfunction from weakened ventricular wall
Dilated Cardiomyopathy: Many Etiologies
Congenital (glycogen storage disorder), regurgitation, myocarditis (Giant cell, CMV, toxo, Chagas, Rheumatic, Lyme), infiltrative (amyloid, sarcoid, Fe, ↑eos, tumor), toxin (doxo, XRT, EtOH), ASD/VSD
Dilated Cardiomyopathy: Treatment
Treat underlying cause + heart failure
Restrictive Cardiomyopathy: Symptoms
Orthopnea, PND, R>L sided HF, thromboembolic events
Restrictive Cardiomyopathy: Exam/EKG Findings
↑JVP, edema, ascites, refractory to diuretics, low voltage QRS, S4 ± S3
Restrictive Cardiomyopathy: Labs/Imaging
Thickened heart wall; Cardiac cath: Ms or Ws (x and y descents) in atria, dip+plateau in ventricles
Restrictive Cardiomyopathy: Cat
Cardiomyopathies
Restrictive Cardiomyopathy: Pathophysiology
Diastolic dysfunction from junk in ventricular wall
Restrictive Cardiomyopathy: Etiologies
Amyloidosis, hemochromatosis, scleroderma, tumor, sarcoid, Pompe’s, chronic ↑eos
Restrictive Cardiomyopathy: Treatment
Treat underlying cause + heart failure, anticoagulation
Hypertrophic Cardiomyopathy: Epi
1/500; AD, sporadic
Hypertrophic Cardiomyopathy: Symptoms
Angina, dyspnea, syncope, chest pain, SOB, fatigue
Hypertrophic Cardiomyopathy: Exam/EKG Findings
S4, ↑JVP, prominent v wave, spike-and-dome pulse, maybe mitral regurg, a.fib
Hypertrophic Cardiomyopathy: Labs/Imaging
↑BNP, high voltage LV, LV hypertrophy (septum>free wall)
Hypertrophic Cardiomyopathy: Cat
Cardiomyopathies
Hypertrophic Cardiomyopathy: Pathophysiology
Diastolic dysfunction from thick ventricular wall
Hypertrophic Cardiomyopathy: Etiologies
Inherited HCM, “athlete’s heart,” aortic stenosis (L), pulmonary HTN (R)
Hypertrophic Cardiomyopathy: Treatment/Notes
↑Risk of sudden cardiac death; Tx: Beta blockers, calcium channel blockers
Sinus Tachycardia
> 100bpm but otherwise normal sinus
Sinus Tachycardia: Cat
Supraventricular Tachyarrhythmias (SVTs)
Sinus Tachycardia: Pathophysiology
pulmonary embolism, fever, anxiety, etc. →↑SA node rate
Sinus Tachycardia: Treatment
Treat underlying cause / β blockers
Premature Atrial Contractions (PAC): Symptoms
Perceived irregular rhythm
Premature Atrial Contractions (PAC): EKG Findings
P waves from another focus (earlier in cycle, diff. morphology)
Premature Atrial Contractions (PAC): Cat
Supraventricular Tachyarrhythmias (SVTs)
Premature Atrial Contractions (PAC): Pathophysiology
Cardiac tissue injury → automaticity outside nodes
Premature Atrial Contractions (PAC): Treatment
Benign; like atrial tachycardia but only once in awhile; β blockers to ↓freq
Paroxysmal SVTs: Cat
Supraventricular Tachyarrhythmias (SVTs)
Paroxysmal SVTs: Treatment
Acute v. Chronic
Acute Tx: if unstable, cardiovert; if stable, vagal maneuvers / adenosine + β / calcium channel blockers Chronic Tx: avoid triggers, antiarrhythmics / catheter ablation
Atrial Tachycardia : EKG Findings
Many different P wave morphologies
Atrial Tachycardia : Cat
Supraventricular Tachyarrhythmias (SVTs)
Atrial Tachycardia : Pathophysiology
Atrial focus/foci faster than SA node
Atrial Tachycardia : Notes
Can be focal or multifocal
AV Nodal Reentrant Tachycardia (AVNRT): EKG Findings
P can come after QRS, or be inverted, or hidden within QRS
AV Nodal Reentrant Tachycardia (AVNRT): Cat
Supraventricular Tachyarrhythmias (SVTs)
AV Nodal Reentrant Tachycardia (AVNRT): Pathophysiology
Altered refractory period in AV node allows impulse to return backwards via AV node
AV Nodal Reentrant Tachycardia (AVNRT): Treatment
Ablate slower pathway within AV node
AV Reciprocating Tachycardia (AVRT): EKG Findings
Short PR, delta waves (widened QRS)
AV Reciprocating Tachycardia (AVRT): Cat
Supraventricular Tachyarrhythmias (SVTs)
AV Reciprocating Tachycardia (AVRT): Pathophysiology
Signal goes down normal pathway and back up via accessory pathway (orthodromic) or down accessory and up normal (antidromic)
AV Reciprocating Tachycardia (AVRT): Caused by
Can be caused by Wolff-Parkinson-White syndrome (short PR); AV valve rings are usual culprit
Atrial Fibrillation (AF): Epi
Most common
Atrial Fibrillation (AF): Exam/EKG Findings
Irregularly irregular ventricular rhythm, random baseline, no clear P waves, small fibrillatory waves >300bpm
Atrial Fibrillation (AF): Cat
Supraventricular Tachyarrhythmias (SVTs)
Atrial Fibrillation (AF): Pathophysiology
Many reentrant circuits in atrium
Atrial Fibrillation (AF): Etiologies
HF, coronary or valvular dz, cardio-myopathy, PE, HTN
Atrial Fibrillation (AF): Treatment
Anticoagulants (dabigatran; turbulence triggers clot formation), anti-arrhythmics if severe symptoms, BBs/digoxin for rate control, rhythm control if refractory
Atrial Flutter (AFL): EKG Findings
“Sawtooth” P waves, ~300bpm in atria
Atrial Flutter (AFL): Cat
Supraventricular Tachyarrhythmias (SVTs)
Atrial Flutter (AFL): Pathophysiology
Single large reentrant circuit in atrium
Atrial Flutter (AFL): Treatment
Anticoagulants (dabigatran; turbulence triggers clot formation), anti-arrhythmics if severe symptoms, BBs/digoxin for rate control, rhythm control if refractory
Premature Ventricular Contractions (PVC): Epi
Common
Premature Ventricular Contractions (PVC): Symptoms
Asymptomatic, may get dizzy/fatigued
Premature Ventricular Contractions (PVC): EKG Findings
Occasional taller, wider QRS, can lead to P wave burial if signal → retrograde to atria
Premature Ventricular Contractions (PVC): Cat
Ventricular Tachyarrhythmias
Premature Ventricular Contractions (PVC): Pathophysiology
Cardiac tissue injury → automaticity outside nodes
Premature Ventricular Contractions (PVC): Treatment
No treatment necessary; BBs if symptomatic
Ventricular Tachycardia (V.Tach): EKG Findings
Buried P waves; Non-sustained: >100bpm
Sustained: >100bpm for >30s
Ventricular Tachycardia (V.Tach): Cat
Ventricular Tachyarrhythmias
Ventricular Tachycardia (V.Tach): Pathophysiology
Reentrant circuit or ↑rate in ventricle
Ventricular Tachycardia (V.Tach): Treatment
BBs, amiodarone/sotalol to reduce symptoms, ICD, catheter ablation
Torsades de Pointes: EKG Findings AND Labs
Polymorphic, long QT, oscillating amplitude; hypomagnesemia
Torsades de Pointes: Cat
Ventricular Tachyarrhythmias
Torsades de Pointes: Pathophysiology
Oscillating amplitude of EKG
Torsades de Pointes: Etiologies
Long QT syndrome, ischemia, drugs
Torsades de Pointes: Treatment
Mg++, K+, isoproterenol or pacemaker @ 100bpm, lidocaine to decrease QT
Ventricular Fibrillation: EKG Findings
> 300bpm, chaotic, disorganized ventricular rhythm
Ventricular Fibrillation: Cat
Ventricular Tachyarrhythmias
Ventricular Fibrillation: Pathophysiology
Multiple reentrant circuits in ventricle
Ventricular Fibrillation: Treatment
Life-threatening, defibrillation stat
Sinus Bradycardia: EKG Findings
<60 bpm, both otherwise normal sinus
Sinus Bradycardia: Cat
Bradyarrhythmias
Sinus Bradycardia: Pathophysiology
↓SA rate or heart block
Sinus Bradycardia: Etiologies
Acute MI, hypothyroidism, infiltrative, drugs, athletes/teens
1st Degree AV Block: Symptoms
Angina, syncope
1st Degree AV Block: EKG Findings
PR interval >0.2 sec “long PR syndrome”
1st Degree AV Block: Cat
Bradyarrhythmias
1st Degree AV Block: Pathophysiology
↓AV conductivity
1st Degree AV Block: Treatment
Benign if asymptomatic
2nd Degree AV Block (Mobitz I) (Wenckebach): EKG Findings
PR progressively ↑ until QRS dropped
2nd Degree AV Block (Mobitz I) (Wenckebach): Cat
Bradyarrhythmias
2nd Degree AV Block (Mobitz I) (Wenckebach): Pathophysiology
Progressive PR prolongation
2nd Degree AV Block (Mobitz I) (Wenckebach): Etiologies AND Treatment
Drugs that slow conduction, athletes;
Tx: correct if reversible cause, pacemaker if syncope or angina
2nd Degree AV Block (Mobitz II): Symptoms
Pre-syncope, syncope
2nd Degree AV Block (Mobitz II): EKG Findings
PR stays constant but QRS dropped intermittently
2nd Degree AV Block (Mobitz II): Cat
Bradyarrhythmias
2nd Degree AV Block (Mobitz II): Pathophysiology
AV node blocks some atrial impulses
2nd Degree AV Block (Mobitz II): Etiologies
Where is the block?
Block is below AV node (His-Purkinje)
2nd Degree AV Block (Mobitz II): Treatment/Notes
More severe than Mobitz I, worsened by exercise;
Tx: pacemaker for everyone
3rd Degree AV Block: Symptoms
Dizziness, syncope, angina, HF
3rd Degree AV Block: EKG Findings
P waves dissociated from QRS but otherwise each normal
3rd Degree AV Block: Cat
Bradyarrhythmias
3rd Degree AV Block: Pathophysiology
No conduction from atria to ventricles at all
3rd Degree AV Block: Treatment/Notes
Atrial rate higher than ventricular rate (per natural frequencies);
Tx: pacing
Junctional (Nodal) Escape Rhythm: EKG Findings
Widened QRS, no P for awhile, 50-60bpm
Junctional (Nodal) Escape Rhythm: Cat
Bradyarrhythmias
Junctional (Nodal) Escape Rhythm: Pathophysiology
SA rate slows to the point where AV node takes over
Ventricular Escape Rhythm: EKG Findings
Widened QRS, long PR, 30-40bpm
Slower than Nodal escape rhythm
Ventricular Escape Rhythm: Cat
Bradyarrhythmias
Ventricular Escape Rhythm: Pathophysiology
SA rate slows to the point where ventricular pacemakers take over
Four ways to pancreatitis
Secondary hypertriglyceridemia
Familial hypertriglyceridemia IV
lipoprotein lipase deficiency
Apo-II deficiency
Secondary Cholesterolemia: Labs/Imaging/BP
↑Plasma cholesterol
↑LDL, the most important atherogenic lipoprotein
Normal TG levels
Secondary Cholesterolemia: Cat
Dyslipidemias
Secondary Cholesterolemia: Pathophysiology AND Etiologies
↓LDLr activity from diet high in saturated fat/cholesterol, hypothyroidism, biliary obstruction, or drugs; or ↓VLDL synthesis from nephrotic syndrome
Secondary Cholesterolemia: Treatment/Notes
↓LDL is primary target: lifestyle change, assess for CVD risk
LDL-lowering drugs
Statins: prevent CHD, reduce all-cause mortality + coronary lesions
Bile acid sequestrants: no reduction in all-cause mortality
Niacin: no reduction in coronary lesions
Fibr
Polygenic Hypercholesterolemia: Epi
Common
Polygenic Hypercholesterolemia: Symptoms
↑CHD risk
Polygenic Hypercholesterolemia: Exam/EKG Findings
↑LDL
Polygenic Hypercholesterolemia: Labs/Imaging/BP
↑Plasma cholesterol
↑LDL, the most important atherogenic lipoprotein
Normal TG levels
Polygenic Hypercholesterolemia: Cat
Dyslipidemias
Polygenic hypercholesterolemia v. Monogenic
Less severe LDL elevation than monogenic, not very strong inheritance