crdio Flashcards
- Irregular irregular pulse
af
- dry cough and hyperkalaemia
ACEI
- tall tented T waves and wide QRS complexes
VT
- saw tooth ECG
atrial flutter
- rib-notching on CXR
coarctation of aorta
- radial- radial delay
aortic dissection/coarctation of aorta
- collapsing pulse
aortic regurgitation
- slow rising pulse
aortic stenosis
- splinter haemorrhages
infective endocarditis
- crescendo-decrescendo murmur
aortic stenosis
main cause (prosthetic valves or IV drug users)
- staph aureus
present in mouth after dental surgery
- strep viridans
works through P2Y12 receptor by disulphide bond
- clopidogrel
binds to AT3 and increases its affinity for clotting factors to inactivate
- heparin
- Continuous machine like murmur
patent ductus arteriosus – connection between aorta and pulmonary artery that remains open
- Strawberry milkshake coloured blood
hyperlipidaemia
- Rate limiting enzyme in cholesterol synthesis
– HMG- CoA reductase – drug target for cholesterol lowering drugs – statins are competitive inhibitors of HMG-CoA reductase
supplies the SA node
- Right coronary artery
VS defect, overriding aorta, pulmonary stenosis, RV hypertrophy
- Tetralogy of fallot
tapping apex, diastolic murmur, best heard on left side, opening snap, AF
- Mitral stenosis
displaced apex, pansystolic murmur, to axilla, AF
- Mitral regurgitation
– pansystolic murmur, lower left sternal edge on inspiration, IV drug user
- Tricuspid regurgitation
SOB/chest pain, high volume collapsing pulse, early diastolic lower left sternal age leaning forward on expiration, wide pulse pressure
- Aortic regurgitation
- Treatment for VT
adenosine/Ca blocker/BBlocker, amiodarone, cardioversion
competitive antagonist of muscarinic ACh receptors (M1,M2,M3) – blocks parasympathetic – reverses bradycardia following MI
- Atropine
- Antiemetic given for gastroparesis and following an MI
metoclopramide
boot shaped heart
tetrology of falot
large if atrial pressure e.g. tricuspid stenosis, pulmonary stenosis, pulmonary hypertension
absent if in atrial fibrillation
‘a’ wave = atrial contraction
caused by atrial contractions against a closed tricuspid valve
are seen in complete heart block, ventricular tachycardia/ectopics, nodal rhythm, single chamber ventricular pacing
Cannon ‘a’ waves
closure of tricuspid valve
not normally visible
‘c’ wave
due to passive filling of blood into the atrium against a closed tricuspid valve
giant v waves in tricuspid regurgitation
‘v’ wave
fall in atrial pressure during ventricular systole
‘x’ descent
opening of tricuspid valve
y descent
name layers of the heart from innermost to outermost
endocardium, myocardium, epicardium and pericardium
syndrome is caused by a congenital accessory conducting pathway between the atria and ventricles leading to a atrioventricular re-entry tachycardia (AVRT). As the accessory pathway does not slow conduction AF can degenerate rapidly to VF
wolff parkinson white syndrome
doubles risk of IHD
diabetes
initial endothelial dysfunction is triggered by a number of factors such as smoking, hypertension and hyperglycaemia
this results in a number of changes to the endothelium including pro-inflammatory, pro-oxidant, proliferative and reduced nitric oxide bioavailability
stage 1 & 2 of IHD
fatty infiltration of the subendothelial space by low-density lipoprotein (LDL) particles
monocytes migrate from the blood and differentiate into macrophages. These macrophages then phagocytose oxidized LDL, slowly turning into large ‘foam cells’. As these macrophages die the result can further propagate the inflammatory process.
stage 3&4 of IHD
smooth muscle proliferation and migration from the tunica media into the intima results in formation of a fibrous capsule covering the fatty plaque.
stage 5 of IHD
WiLLiaM MaRRoW V1 and V6
LBBB or RBBB
Irregularly irregular meaning
the PULSE is Irregularly irregular
Anteroseptal V1-V4
Left anterior descending
Inferior II, III, aVF
Right coronary
Anterolateral V4-6, I, aVL
Left anterior descending or left circumflex
Lateral I, aVL +/- V5-6
Left circumflex
give the pathway of electrical conduction within the heart.
SAN > AVN > bundle of His > left/right bundle branches > Purkinje fibres