Cardio Review Flashcards
Truncus Arteriosus
Ascending aorta and pulmonary trunk
Bulbis cordis
Smooth part (outflow tracts) of the left and right ventricle
Primitive atrium
Trabeculated part of left and right atria
Primitive ventricle
Trabeculated part of left and right ventricles
Left horn of sinus venosus
Coronary sinus
Right horn of sinus venosus
Smooth part of right atrium
Right common cardinal vein and right anterior cardinal vein
SVC
Most posterior part of heart
Left atrium – can cause dysphagia or hoarseness if enlarged.
Things that cause high pulse pressure
Hyperthyroidism, aortic regurgitation, arteriolosclerosis
Wall tension
Pressure x radius / 2xthickness
Resistance
8ML/piR^4
Diastolic heart failure effect on ejection fraction?
Normal
Wide splitting
Due to conditions that delay RV emptying like pulmonic stenosis or RBBB.
Fixed splitting
Seen in ASD
Paradoxical splitting
In conditions like aortic stenosis or LBBB, aortic valve closes after pulmonic valve. Inspiration will move splitting closer together
Holosystolic high pitched blowing murmur
Mitral regurgitation
Crescendo-decrescendo systolic murmur
Aortic stenosis, radiates to carotids causes weak and delayed pulses.
Harsh sounding holosystolic murmur
VSD – accentuated with increased afterload (handgrip)
Late systolic crescendo murmur with midsystolic click
Mitral valve prolapse. When TPR increases, the click increases in intensity and moves later.
High pitched blowing diastolic murmur
Aortic regurgitation. Can present as head bobbing or bounding pulses. Increased intensity with hand grip.
Diastolic murmur with opening snap and delayed rumbling
Mitral stenosis. Earlier opening snap correlates with increased severity. Often due to rheumatic fever
Continuous murmur (machine like)
PDA, due to congenital rubella or prematurity.
Drugs that prolong QT and can cause torsades
Sotalol Risperidone Macrolides Chloroquine Protease inhibitors Quinidine Thiazides
Can also be caused by decreased Mg or decreased K.
Romano ward syndrome
Congenital long QT syndrome