Cardiovascular Flashcards
(183 cards)
Dilated Cardiomyopathy
cause
idiopathic; viral myocarditis; alcohol toxicity; post-partum, genetics
Dilated Cardiomyopathy
s/s
left congestive heart failure, dyspnea; S3 gallop, pulmonary rales, increased JVD
Dilated Cardiomyopathy
dx
echocardiogram (left ventricular dilation and dysfunction, large ventricular chamber, decreased ejection fraction); CXR (cardiomegaly, pulmonary congestion); EKG (nonspecific ST/T wave changes); nuclear studies, cardiac cath
Dilated Cardiomyopathy
tx
ACE, diuretics, BB, cardiac transplant, digoxin; alcohol cessation
Hypertrophic Cardiomyopathy cause
genetics (asian), elderly, young athletes
Hypertrophic Cardiomyopathy s/s
dyspnea, angina; syncope, arrhythmias; sudden cardiac death; sustained PMI, loud S4 gallop, variable systolic murmur, bisferiens carotid pulse, jugular venous pulsations
Hypertrophic Cardiomyopathy dx
echocardiogram (LVH, asymmetric septal hypertrophy, small left ventricle, diastolic dysfunction); EKG (nonspecific ST/T wave changes, exaggerated septal Q waves, LVH)
Hypertrophic Cardiomyopathy tx
BB, CBB; disopyramide; surgical ablation of septum, dual-chamber pacing
Restrictive Cardiomyopathy cause
fibrosis or infiltration of ventricular wall because of collage-defect diseases (amyloidosis, radiation, post-op changes, DM, fibrosis)
Restrictive Cardiomyopathy s/s
decreased exercise tolerance; right sided congestive heart failure; pulmonary HTN
Restrictive Cardiomyopathy dx
echocardiogram (diagnostic); CXR (enlarged cardiac silhouette); EKG changes; Cardiac MRI; cardiac cath (reduced LV function); endomyocardial biopsy (r/o other cardiomyopathies and pericarditis)
Restrictive Cardiomyopathy tx
diuretics
Takotsubo Cardiomyopathy (broken heart syndrome) cause
stress-induced; major catecholamine discharge
Takotsubo Cardiomyopathy (broken heart syndrome) s/s
indistinguishable from acute MI
Takotsubo Cardiomyopathy (broken heart syndrome) dx
EKG changes, mild cardiac enzyme elevation suggestive of MI; cardiac cath (hypocontractility of left ventricular apex, patent coronary arteries)
Takotsubo Cardiomyopathy (broken heart syndrome) tx
supportive; avoid inotropes
Atrial Fibrillation cause
age; excessive alcohol use/withdrawal; structural abnormality
Atrial Fibrillation s/s
palpitations, angina, fatigue, heart failure symptoms; irregularly irregular
Atrial Fibrillation dx
EKG (narrow-complex irregularly irregular rhythm)
Atrial Fibrillation tx
cardioversion (200 J; adenosine); anticoagulants (heparin, LMWH, warfarin, dabigatran); antiarrhythmics w/ heart failure (digoxin, amiodarone, dronedarone); w/o heart failure (metoprolol, diltiazem/verapamil)
Atrial Flutter cause
COPD, heart failure, atrial septal defect, CAD
Atrial Flutter s/s
palpitations, angina, fatigue, heart failure symptoms
Atrial Flutter dx
○ EKG (saw tooth pattern; no P waves)
Atrial Flutter tx
cardioversion (50 J; ibutilide); anticoagulants (heparin, LMWH, warfarin, dabigatran); antiarrhythmics (amiodarone, procainamide); chronic (metoprolol, diltiazem/verapamil)