PEARLS Book Flashcards
ultrasound of the heart, most useful in diagnosing heart failure**, also used in evaluating coronary artery disease
Echocardiogram
This type of echocardiogram is:
**primary noninvasive test for assessing cardiac anatomy and function
Transthoracic echocardiogram (TTE)
This type of echocardiogram is:
**more invasive but better imaging of structures*, especially posterior cardiac structures, patients w prosthetic valves or aortic disorders (i.e. aneurysms) or atrial abnormalities (i.e. thrombi)
Transesophageal echocardiogram (TEE)
GOLD STANDARD FOR DEFINITIVE DIAGNOSIS FOR CORONARY ARTERY DISEASE, PERIPHERAL ARTERY DZ, AND RENAL ARTERY STENOSIS**
ANGIOGRAPHY!
What does a positive stress test look like on EKG
ST depression
Most useful noninvasive test in evaluating patients w suspected coronary artery disease?
Stress test
Benefit of using Myocardial Perfusion Imaging (MPI)..
localization of region of ischemia
Adenosine or Dipyridamole
Pharmacologic stress test
localizes regions of ischemia***, depicts wall motion abnormalities as well as visualize structure and function of the heart (assess LV and valvular function)
Stress echo
risk factors= diabetes mellitus hyperlipidemia smoking HTN males age over 65 fam hx of CAD
Angina
EKG can show:
ST depression with exertion
T wave inversion
poor R wave progression
Angina
GOLD STANDARD** outlines coronary artery anatom, determine location and extent of CAD
Coronary angiography
Most common cause of an MI?
Atherosclerosis
Women, elderly, diabetics, obese have..
Atypical MI presentations
With an anterior wall MI, where will the Q waves/ST elevations be seen?
v1 through v4
Which artery is involved in an anterior wall MI?
LAD
With a lateral wall MI, where will the Q waves/ST elevations be seen?
I, aVL, V5, V6
Which artery is involved in a lateral wall MI?
Circumflex
With a anterolateral wall MI, where will the Q waves/ST elevations be seen?
I, aVL, v4, v5, v6
Which artery is involved in an anterolateral MI?
mid LAD or circumflex
With an inferior wall MI, where will the Q waves/ST elevations be seen?
II, III, aVF*
Which artery is involved in an inferior wall MI?
Right coronary artery
With a posterior wall MI, where will the Q waves/ST elevations be seen?
ST DEPRESSIONS IN:
V1-V2
(mirror image!! will be seen)
How often should you test cardiac markers?
3 sets Q8 hours
Which cardiac marker is the most sensitive and specific?
Troponin
Troponin takes 7-10 days to return to baseline
Post MI pericarditis associated with fever and pulmonary infiltrates
Dressler’s syndrome
HF, v fib, cardiogenic shock, papillary muscle, mitral regurg, ventricular wall rupture, pericarditis, mural thrombosis
Complications of MI
Average pt goes home on: Aspirin, beta blocker, ACEi, statin, NTG PRN
MI pt
EKG shows transient ST elevations (symptoms and ST elevations rapidly resolve w CCB and nitro)
Prinzmental angina
Most common cause of HF?
Coronary artery disease
most common cause of L sided HF
CAD
HTN
most common cause of R sided HF
L sided HF
also pulmonary dz
- sympathetic nervous system activation
- myocyte hypertrophy/remodel
- RAAS activation
cause: **fluid over load, ventricular remodeling/hypertrophy, all leading to…..
CHF!
pulmonary and/or systemic edema
Increase pulmonary venous pressure from fluid backing up into lungs:
- dyspnea
- pulmonary congestion/edema
L sided HF
rales, rhonchi, chronic nonproductive cough esp w pink, frothy sputum
wheezing “cardiac asthma” due to airway edema, pleural effusion
Nocturia
L sided HF
CHF is the most common cause of…
transudative pleural effusion
HTN, Cheyne Stoke’s breathing
S3 and S4 can be heard
L sided HF
Dusky pale skin, diaphoresis, fatigue, altered mental status
HF
Increase systemic venous pressure leading to signs of systemic fluid retention
R sided HF
Peripheral edema
Jugular venous distention
GI/Hepatic congestion
R sided HF
most useful test to dx HF?
Echocardiogram
What is the most important determinant in prognosis of HF patient?
Ejection fraction
decreased EF
thin ventricular walls
dilated LV chamber
S3 sound
Systolic failure
normal/increased EF
thick ventricular walls
small LV chambers
S4 sound
Diastolic failure
Kerley B lines
Butterfly pattern
Cardiomegaly infiltrates
Pleural effusion
CXR of CHF pt
increased _____ may identify CHF as the cause of dyspnea in the ER
BNP
_____ release B-type natriuretic peptides (BNP) during volume overload
ventricles
calcium channel blockers are helpful for which kind of HF?
Diastolic
Persistent, pleuritic, postural pain and pericardial friction rub (5 P’s)
Acute pericarditis
Viral is most common cause (Enteroviruses: Coxsackie and echovirus)
Acute pericarditis
pericarditis that occurs 2-5 months after an MI
Dressler’s syndrome
Pleuritic chest pain (sharp and worse w inspiration). Persistent, postural (worse with lying down and relieved by sitting/leaning forward). May radiate to trapezius*, back, neck, shoulder, arm, epigastric area.
Fever usually present
Acute pericarditis
Best heard at end of expiation with patient upright and leaning forward
Pericardial friction rub
EKG shows diffuse, ST elevations in precordial leads (concave up in V1 through V6) and associated with PR depression
Acute pericarditis
First line tx for acute pericarditis
Anti-inflammatory drugs- aspirin or NSAIDs
Increased fluid in pericardial space
Pericardial effusion
Causes include: pericarditis**, malignancy infection, radiation therapy, dialysis/uremia, collagen vascular disease
Pericardial effusion
Exam reveals distant heart sounds bc fluid interferes w sound conduction
Pericardial effusion
Low voltage QRS complexes suggest…
Large effusion (or tamponade)
Echocardiogram shows an increase pericardial fluid
Pericardial effusion
Pericardial effusion causing significant pressure on the heart, which causes a restriction of cardiac ventricular filling, which decreases cardiac output
Pericardial tamponade
- distant (muffled) heart sounds
- increased JVP
- systemic hypotension
Beck’s triad
seen in pericardial tamponade
decreased pulses with inspiration
Pulsus paradoxus (seen in pericardial tamponade)
Echocardiogram may show diastolic collapse of cardiac chambers
Pericardial tamponade
Tx of pericardial tamponade
Immediate pericardiocentesis
thickened, fibrotic, calcified pericardium that restricts ventricular diastolic filling
(this causes an increase in venous pressure
decrease in stroke volume
ultimately, a decreased cardiac output)
Constrictive pericarditis
Dyspnea***
Pulsus paradoxus
R sided HF signs, Kussmaul’s sign: JVD increased during inspiration
Constrictive pericarditis
Pericardial knock: high-pitched 3rd heart sound due to sudden cessation of ventricular filling in early diastole from thickened inelastic pericardium
Constrictive pericarditis
Echocardiography shows: pericardial thickening
CXR shows: pericardial calcification
Constrictive pericarditis
Pericardiectomy is the management for..
Constrictive pericarditis
What is the most common type of cardiomyopathy
Dilated cardiomyopathy (95%)
systolic dysfunction leads to ventricular dilation which causes a “dilated, weak heart”
ages 20-60
Dilated cardiomyopathy
Most commonly idiopathic, can be cause by enteroviruses (Coxsackie B, echovirus), Parovirus B19
*Can be caused by alcohol abuse, cocaine, anthracyclines, pregnancy
Dilated cardiomyopathy
Echocardiogram shows left ventricular dilation (thin ventricular wall), large ventricular chamber, deceased ejection fraction, regional or global LV hypokinesis
(CXR shows cardiomegaly)
Dilated cardiomyopathy
You treat dilated cardiomyopathy just like…
heart failure
ACEi, diuretics, etc
Hallmark= impaired diastolic function with relatively persevered contractility
ventricular rigidity impedes ventricular filling
Restrive cardiomyopathy
infiltrative disease: amyloidosis is most common cause**, sarcoidosis
Restrictive cardiomyopathy