Cardiovascular Flashcards
Pulsus parvus et tardus. Spot diagnosa?
Aortic stenosis (weak and delayed pulses)
Eðlileg lengd PR?
120-200
Eðlileg lengd QRS?
<120
Eðlileg lengd QTc?
<440
Pulsus paradoxus. Hvað og diagnosur?
Lægri BÞ með innöndun - fall um >10mmHg on inspiration Tamponade (etv vegna pericarditis) Obstructive pulmonary disease Tension pneumo Foreign body in airway
Pulsus alternans. Diagnosa?
Tamponade
Impaired left ventricular systolic function
Poor prognosis
S3, hvers vegna?
Fluid overload
S4, hvers vegna?
Decreased compliance (hypertension, diastolic dysfunction)
Kussmaul sign?
Aukinn JVP með innöndun
tamponade eða constrictive pericarditis
Sick-sinus syndrome?
Intermittent SVT og bradyarrythmiur
Algengasta ástæða pacemaker
Multifocal atrial tachycardia. Skilgreining?
amk 3 mismunandi P-wave morphologies
Hver er algengasta orsök hægri hjartabilunar?
Vinstri hjartabilun
Meðferð við Torsades de Pointes?
Magnesium + cardiovert if unstable
Correct hypokalemia og sjá hvort drug induced
Wolf-Parkinson-White. Charactheristic?
Delta wave
= flatt upp að R takka í QRS
Systolic dysfunction. Fyrsta einkenni oftast?
mæði við áreynslu
Algengasta cardiomyopathian?
Dilated
Greiningarskilmerki dilated cardiomyopathy?
left ventricular dilation
minnkað EF
Mögulegar orsakir dilated cardiomyopathy?
Idiopathic Ischemia Long standing hypertension Alcohol Myocarditis Postpartum status Drugs (doxorubicin, cocaine ofl) Endocrinopathy Infection (coxsachie, HIV, Chagas, parasites) Genetics Nutritional (wet beriberi)
S3. Hvers vegna?
Rapid ventricular filling in fluid overload
Dilated cardiomyopathy
S4. Hvers vegna?
Stiff, noncompliant ventricle + aukið “atrial kick”
Hypertrophic cardiomyopathy
Algengasta orsök dauða hjá ungum, hraustum íþróttamönnum í USA?
Hyperthrophic obstructive cardiomyopathy
Helstu orsakir hypertrophic cardiomyopathy?
HOCM - autosomal dominant
Hypertension
Aortic stenosis
Key finding í hypertrophic cardiomyopathy?
Systolic ejection crescendo-decrescendo murmur sem eykst við minnkað preload (valsalva, standing)
Meðferð við hypertrophic cardiomyopathy?
betablokkar sem einkennameðferð
og second-line er CCB
etv skurðaðgerðir
Orsakir restrictive cardiomyopathy?
Infiltrative disease (sarcoidosis, hemochromatosis, amyloidosis) Scarring + fibrosis vegna geislunar