Cardiology Flashcards
Healthy size of JVP?
3cm
inspiration makes the JVP rise or fall?
Fall - negative intrathoracic pressure
Causes of a raised JVP?
Heart failure
Fluid overload
Bradycardia
Kaussmauls SIGN
raised JVP with inspiration - due to constriction of the pericardium
Raised JVP with no pulsations?
SVC obstruction
JVP a wave
atrial contraction
JVP c wave
closure of tricuspid valve
JVP x descent
downward movement of the heart
JVP v wave
passive filling of blood in thr atriaum against closedf tricuspid valve
JVP y descent
Opening of tricuspid valve
JVP a waves ==absent==
AF
JVP a waves ==Large==
tricuspid stenosis
JVP cannon a waves
AV dissasociation -
Atrial flutter/tachy ,
complete heart block,
VT and ventricular ectopics
JVP V waves - giant
tricuspid regurge
JVP x descent - steep
tamponade
JVP y descent - steep
Cardiac constriction
JVP y descent - slow
Tricuspid stenosis
Absent radial pulse, cause?
Iatrogenic - A-lines Tetralogy of Fallot Aortic dissection Trauma Takayasu Arteritis Peripheral arterial embolus
Central pulse is for assessing?
character of pulse
peripheral pulse is for assessing?
rate and rythym
Collapsing pulse?
Aortic regurge
AV fistula
PDA
Slow rising pulse?
Aortic stenosis
Bisferiens pulse?
“double shudder” mixed Aortic valve disease with significant regurgitation
Jerky pulse?
HOCM
Alternans pulse?
occurs in LV distortion - reduced EJ % which due to frank-sterling physiology improves the EF of the next beat
Paradoxical pulse?
Reduction in the pulse with inspiration - LV compression ie. tamponadde pericarditis and severe asthma
Loud first heart sound cause?
Mobile Mitral stenosis hyperdynamic states tachycardia left to right shunt short PR interval
Soft first heart sound cause?
immobile mitral stenosis Hypodynamic states Mitral regurge Poor ventricular function Long PR interval
Split first heart sound cause?
LBBB RBBB VT Inspiration Ebsteins anomoly
Variable first heart sound cause?
AF heart block (complete)
What causes the first heart sound?
closure of mitral and tricuspid valve
What causes the second heart sound?
closure of the aortic and pulmonary valves
Loud second heart sound cause?
Hypertension
Tachycardia
ASD
Soft or absent second heart sound cause?
Severe aortic stenosis
Fixed splitting of the second heart sound cause?
ASD
Widely split second heart sound cause?
RBBB
Pulmonory stenosis
Deep inspiration
Mitral regurge
Single S2 sound cause?
Pulmonary stenosis/aortic stenosis
hypertension
elderly
ToF
Reversed split S2 cause?
LBBB
Right ventricular pacing
PDA
AS
Third heart sound cause?
audible in children - pathalogical in rapid left ventricular filling - eg mitral regurge
Fourth hearth sound cause?
LVH
amyloid
causes of valvular clicks?
AS
bicuspid aortic valve
valve replacement
causes of opening snap?
Mitral stenosis
ECG tall R waves in V1
QRS is usually negative in V1
caused by right ventricular hypertrophy
RBBB
posterior infarction
Causes of LBBB
ischemia
hypertension
aortic valve disease
Causes of RBBB
Normal variant in young
PE
ASD
Ischemic heart disease
Causes of St elevation
early repolarisation
Acute MI
pericarditis
coronary artery spasm
ECG changes in ischaemia? (other than ST-e)
St depression
t inversion and peaking
ECG changes on Digoxin?
downsloping
st depression
ECG changes in hypertrophy?
St depression
T inversion
ecg changes in hyperventilation?
ST depression
T inversion and peaking
ecg changes in oesophogeal irritation
ST depression
T inversion
ECG changes in mitral valve prolapse?
T wave inversion
ecg chnages in strokes?
St depression
T wave inversion
ECG changes in hyperkalemia
Tall T waves
Prolonger PR interval
Absent P waves
ECG changes in severe hyperkalemia
Wide QRS
sine wave pattern
VT
ECG changes in hypokalemia
Flat T waves/inverted T waves
Prolonged PR interval
St depression
U waves
Mid- late systolic murmur cause?
innocent? AS Coarctation HCM ASD Mitral valve prolapse
mid-diastolic murmurs cause?
Mitral stenosis - austin flint murmur
Rhematic fever
mitral/tricuspid regurge
Atrial tumour
Symptoms of severe Mitral Stenosis?
Dyspneoa
heamoptysis
dysphagia due to left atrial enlargement
palpitations
CXR findings of Mitral Stenosis?
Left atrial or right ventricular enlargement
splaying of the subcarinal angle >90 degrees
Signs of mitral stenosis
low pulse pressure
soft first heart sound
Long diastolic murmur
Causes of mitral regurge?
Ventricular dilatation Mitral valve prolapse ischaemic papillary rupture collagen disorders endocarditis
indicators of severe Mitral regurge?
small volume pulse LV enlargement S3 sound AF Cardiac failure
Conditions associated with Mitral valve prolapse?
Coronary artery disease polycystic kidney disease HCM PDA Marfans SLE
Causes of aortic regurge?
infective endocarditis RA/SLE Syphillis/ankspond Aortic dissection hypertension Collagen disorders
Causes of Aortic Stenosis
congenital bicuspid valve
calcification in elderly
HCM
IHD
LVOT velocity of 1?
Normal
LVOT velocity of 0.25?
Severe
Indicators of severe AS
syncope
LV failure
Valve area greater than 0.5cm on echo
Causes of Tricuspid regurge
functional due to right ventricular dilatation - ie with MR
Infection - ie venous cannula
Carcinoid
Ebstein’s anomoly - pt have cynanosis and commonly ASD
Types of valve replacement?
Mechanical - ball and cage, single tilling disc, bileaflet
Tissue - allograft - porcine. Or cadaveric homograft.
Infection of prosthetic valve features?
High mortality rate - 60% Within six months of implant usually staph epidermis septal abcess heamolysis - increased urobilligin
Signs of infective endocarditis
Fever arthropathy splinter haemorrhages and painful oslers nodes hepatosplenomegaly stroke/digital ischaemia vasculitis rash
(ONLY TEN PERCENT are IVDU - 40% no previous valve disease)
Re-entry tachy
usually anatomical
atomaticity in tachy
secondary arrythmia due to electrolyte imbalance or sepsis
triggered activity in tachy
Seen in both primary and drug toxicity
SVT two main groups?
AV nodal re-entry tachycardia
AV reentry tachycardia - accessory pathway between atria and ventricles at distance from AV node.
AF - to anticoagulate or not?
Chadsvasc score
hasbled score
Hs and Ts
hypoxia
hypovolemia
hypo/er kalemia
hypothermia
Tensioning PTX
Tamponade
Toxins
Thrombus
Angina variants?
Decubitus - on lying down - dreaming
Prinzmetals’ - unpredictable and at rest due to coronary artery spasm
Syndrome X - very small vessel diseases - normal coronary arteries on testing but positive exercise test
other causes of troponin rises other than MI
sepsis hypotension pre-eclampsia IECOPD AAA chemo
Absolute contraindication to thrombolysis
active internal bleeding aortic dissection suspected head truma in last two weeks intracranial cancer heamoraggic stroke <2/12 pregnancy
Relative contraindications to thrombolysis
CPR bleeding disorders recent surgery active diabetic heamorage intracardiac thrombus INR > 1.8
Length of time on ticagralor after MI and study
1 year
PLATO study
Length of time on beta blockers post MI and study
life
ISIS
Length of time on ACEi after MI
life
SAVE study
length of time on aldosterone antaganoists post mi
life
ephesus study
common aldoserone antagonists
spironolactone
Epleronone
Length of time on statin after MI
life
MIRACL study
Cant drive after TLOC ?
6/12 after last episode - NB: vasovegal while erect does not preclude driving
Cant drive after PCI?
1 week
Cant drive after MI?
1 month
HF-PEF?
Diastolic heart failure - preserved ejection fraction
pt is breathless but no signs of fluid overload
classification of heart failure
new york heart association
NYHA Class 1 heart failure
asytomatic - 5% mortality at one year
NYHA Class 2 heart failure
slight limitation of DAL - 15% oym
NYHA Class 3 HF
marked limitation of DAL - 30% oym
NYHA Class 4 HF
dyspneoa at rest - 50-60 one year mortality rate
heart failure echo?
EF <40%
5 year survival at 40% is 60% compared with 95% in EF>50%.
DCM?
Dilated cardiomyopathy
Causes of DCM
Etoh hypertension auto immune thiamine deficiancy HIV Drugs sarcoidosis AF/tachy states uncontrolled Diabetes
Restrictive cardiomyopathy
symptoms similar to pericarditis due to rigid ventricles
Causes of restrictive cardiomyopathy
scleroderma
amyloid/sarcoid/heamochromatosis
malignancy
radiotherapy
Myocarditis signs?
young patient acute hx viral prodrome neutrophilia ECG changes elevated troponin
HIGH MORBIDITY AND MORTALITY
Common cause of acute paroxysmal AF in young patient?
Etoh
if not totally abstaining 50% will die within 5 years
Constrictive pericarditis? signs/causes
similar to restrictive myocarditis but also bright pericardium on echo/soft heart sounds/pulsus paradoxus rarely - diastolic knock.
Caused by TB radiotherapy post viral or bacterial pericarditis trauma connective tissue disease
Signs of pericardial effusion?
pulsus alternans or paradoxus
electrical alternans on ecg
signs/symptoms of restrictive cardiomyopathy /constrictive pericarditis?
Raised JVP
AF
non pulsatile hepatomegaly
Hypertension - single episode - greater than 190/x or y/110 ?
Treat
BP 140-159/90-99 - multiple episodes - no comorbidities -
annual assessment
First line treatment for hypertension aged >55 or BLack
Calcium blocker or thiazide
First line treatment for hypertension aged <55
ACEi or ARB