Cardiovascular Flashcards

1
Q
AORTIC STENOSIS
causes
symptoms
ECG features
CXR features
investigations
management
A

causes - rheumatic, calcified valve
symptoms - SOB, pre/syncope, angina
ECG - LVH/LV strain pattern
CXR - none (LV dilates inwards - PO)
investigations - transthoracic doppler echo + ECG
management - valve replacement if symptomatic or gradient > 40, manage HTN

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2
Q
CCF
examination findings
differentials
investigations
management
A

findings - clubbing, c + p cyanosis, SOB, oedema, AF, crackles, hepatomegaly, cardiomegaly, displaced apex, HS3, pacemaker
investigations - BNP, ECG, echo, renal + liver function, CXR
management - lifestyle, ACEi, b-blocker, spironolactone, furosemide, CRT

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3
Q
ACUTE HF
causes
examination findings
differentials
investigations
management
A

causes - decompensation, ACS, arrhythmia, volume overload, infection
findings - SOB, oedema, end-insp crackles, raised JVP
differentials - PE, pneumonia
investigations - obs, BNP, troponin, renal + liver function, ECG, CXR, transthoracic echo
management - treat cause, hi flow oxygen if sats <90, IV furosemide, IV GTN (if BP > 90)

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4
Q
MI
causes
examination findings
differentials
investigations
management
A

examination findings - HS3
differentials - GORD, ulcer, costochondritis, aortic dissection, PE, panic attack, pericarditis/myocarditis
investigations - obs, glucose, renal + liver function, TFTs, troponins, ECG, CXR, coronary angiogram, later - echo
management - morphine, oxygen if <94, nitrates, aspirin 300, clopidogrel, beta blocker if NSTEMI or STEMI + haem stable, PCI

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5
Q
AORTIC REGURGITATION
causes
CXR findings
ECG features 
differentials
investigations
management
A

causes - rheumatic, IE, HTN, marfan’s, RA, ank spond
symptoms - SOB, fatigue, palpitations, oft asymptomatic
ECG features - nil
CXR features - cardiomegaly, HF signs
differentials
investigations
management - diuretics, vasodilators, replacement if severe

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6
Q

MITRAL STENOSIS
causes
investigations
management

A

causes - rheumatic HD
investigations - echo, CXR, ECG
management - anticoagulation, rate control any AF, diuretics, balloon valvuloplasty if indicated

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7
Q
INFECTIVE ENDOCARDITIS
causes
examination findings
investigations
management
A

causes - IVDU, rheumatic, dentist
examination findings - osler + janeway, dentition, splinter haemorrhages, clubbing, splenomegaly, roth spots, microscopic haematuria
investigations - 3 blood cultures from 3 peripheral sites, FBC (anaemia), urinalysis, CXR, echo (vegetations)
management - oral hygiene, benzylpenicillin + gentamicin, valve repair/replacement

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8
Q

MITRAL REGURGITATION
causes
investigations
management

A

causes - rheumatic, IE, post-MI papillary muscle rupture, marfan’s, SLE, valve prolapse, LV dilatation
investigations - echo, CXR, ECG
management - anticoagulation, manage any AF, diuretics, ACEi (as HTN worsens MR + to reduce afterload), valve repair if severe

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9
Q

what are the causes of AF?

A
IHD
hyperthyroidism
pneumonia
PE
alcohol
rheumatic
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10
Q
MITRAL STENOSIS
timing
position of stethoscope 
position of patient
quality 
radiation 
other features 
systemic features 
CXR features
ECG features
A

timing - mid-diastolic
position of stethoscope - apex with bell
position of patient - LHS + expiration
quality - rumbling (low pitched)
radiation - nil
other features - opening snap, tapping apex, loud HS1
systemic features - AF, RHF signs, malar flush, (crackles?), SOB, fatigue
CXR features - enlarged LA, pulmonary venous congestion
ECG features - AF common, P mitrale (bifid P waves)

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11
Q

how can you describe a murmur?

A
timing
intensity
position of stethoscope 
position of patient
quality 
radiation 
systemic features
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12
Q

how can you describe a murmur?

A
timing
intensity
position of stethoscope 
position of patient
quality 
radiation 
systemic features
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13
Q
MITRAL REGURGITATION
timing
position of stethoscope 
position of patient
quality 
radiation
A
MITRAL REGURGITATION
timing - pansystolic - obliterated HS2 - "BURR"
position of stethoscope - apex
position of patient - normal
quality - blowing
radiation - axilla
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14
Q
AORTIC STENOSIS
timing
position of stethoscope 
position of patient
quality 
radiation
A
timing - ejection systolic
position of stethoscope - aortic 
position of patient - normal
quality - crescendo-decrescendo
radiation - carotids
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15
Q
AORTIC REGURGITATION
timing
position of stethoscope 
position of patient
quality 
radiation
A
timing - early diastolic 
stethoscope - LLSE
patient - leaning forward in expiration
quality - high pitched
radiation - none
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16
Q

what are the indications for a bioprosthetic valve over metallic valve?

A

elderly - ie if valve will outlast pt
CI to warfarin - childbearing age (F)
patient choice

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17
Q

differentials for crackles

A
HF
pneumonia/LRTI
renal failure
fibrosis
COPD
18
Q

differentials for raised JVP

A

RHF - PE (as infarction in pulmonary artery), right sided MI
fluid overload - eg renal failure
cor pulmonale
liver failure - congestive backup + hypoalbuminaemia

JVP goes up cos heart not pumping properly

19
Q

IE - big 5 signs

A

2 in hands - clubbing + splinters
1 in heart - changing murmurs
2 in abdo - splenomegaly + microscopic haematuria (assoc GN)

rarities - osler, roth, janeway

20
Q

commonest causes of splinter haemorrhages

A

gardening/microtrauma
IE
vasculitis

21
Q

causes of AF

A

IHD
RHD
thyrotoxicosis

alcoholic HD
HTN

22
Q

main 2 reasons for an irreg irreg pulse + how can you differentiate?

A

AF

multiple ventricular ectopics - diminish w exercise/increased HR

23
Q

what causes ventricular ectopics?

A

scar tissue

24
Q

what happens to the ventricle in AS? how is this on examination?

A

pressure overload - ventricle enlarges inwards, causing a powerful apex/beat which is not displaced

25
Q

what happens to ventricle in AR?

A

volume overload - ventricle enlarges outwards, displacing the apex/beat

26
Q

causes of powerful but undisplaced apex beat (ie causes of pressure overload)

A

HTN
AS
coarctation
HOCM

27
Q

how do the HS sound in MS + why?

A

loud HS1 - high LA pressure keeps valve open til late diastole then systole slams it shut
opening snap - hi pitched sound just after HS2

28
Q

what causes a left parasternal heave?

A

RVH

29
Q

why is the apex beat displaced in AR?

A

volume overload due to leakage - LV enlarges outwards

30
Q

what long term condition can cause AR? what is one sign on examination of this long term condition?

A

Marfan’s - mARfan’s causes AR

high arched palate

31
Q

mechanical prosthetic valve on examination - how does it differ from the sound of a bioprosthetic valve?

A

scar
starr edwards has 2 sounds - closing sound louder:
opening click → ejection murmur from turbulent flow over ball in systole → loud closing sound

bi-leaflet valves - only 1 (closing) prosthetic sound

32
Q

permanent pacemaker - indications

A

SAN disease
AVN disease - symptomatic 2nd degree + complete heart block

AF with slow ventricular rate
refractory fast AF treated with AVN ablation

cardiac resynchronisation therapy for HF

33
Q

cardiac scars OE

A

midline sternotomy - CABG, valve replacement
apex intercostal scar - mitral valvotomy
legs - CABG

34
Q

reasons for a non-palpable apex

A
DOPE
Dextrocardia
Obesity
Pericardial effusion
Emphysema
35
Q

MITRAL REGURGITATION
other features on examination
CXR features
ECG features

A

other features - AF, HS3, thrusting, displaced apex, audible click
CXR features - cardiomegaly, HF signs
ECG features - AF common, VEBs

36
Q

AORTIC STENOSIS - examination findings

A

slow rising pulse + narrow pp
heaving apex (not displaced - inward enlargement - PO)
ejection click

37
Q

AORTIC REGURGITATION - examination findings

A
head bobbing
nailbed pulsation
exaggerated carotid pulse
collapsing pulse + wide pp
thrusting, displaced apex
HS3
38
Q

MITRAL REGURGITATION - other features (eg symptoms)

A

HF + SOB from LV dilation - may get eg PND

fatigue

39
Q

what is the role of an ICD?

implantable cardioverter-defibrillator

A

constantly monitors HR. if it detects an abnormal rhythm it can either do:

1) pacing – a series of low-voltage electrical impulses (paced beats) at a fast rate to try and correct the heart rhythm
2) cardioversion – one or more small electric shocks to try and restore the heart to a normal rhythm.
3) defibrillation – one or more larger electric shocks to try and restore the heart to a normal rhythm

40
Q

when is an ICD indicated?

implantable cardioverter-defibrillator

A

1) had a life-threatening arrhythmia + are at risk of having it again
2) tests show you are at risk of one in the future - eg cardiomyopathy, long QT, brugada
2) another heart + circulatory condition eg HF + are at risk of having a life-threatening arrhythmia + other treatments to correct rhythm have been unsuccessful

41
Q

types of pacemaker

A

1) single-chamber – 1 wire to either the right atrium or right ventricle
2) dual-chamber – 2 wires, 1 to right atrium and 1 to right ventricle
3) CRT - biventricular pacemaker – 3 wires, to right atrium, right ventricle + left ventricle

most pacemakers are demand pacemakers - sensor turns them off when HR rises above a certain level + reactivates when the HR too slow. other type is fixed-rate.

42
Q

indications for a pacemaker

A
persisting symptomatic bradycardia
AV block: complete; 2nd degree mobitz II
AF refractory to meds
sick sinus syndrome
some dilated cardiomyopathy or HOCM pts
persistent AV block post anterior MI
neurocardiogenic syncope
resistant tachyarrhythmias

and CRT for HF i assume?