Cardio Flashcards
Aortic stenosis
- pulse
- HS
- murmur
slow rising, narrow pulse pressure <30
HS:
soft S2 ± S4 (blood filling a non-compliant ventricle)
ejection systolic murmur
Right 2nd ICS, radiates to carotids
Aortic stenosis Sx
SAD
syncope
angina
dyspnoea
Aortic stenosis Ix
- ECG (LVH, arrhythmias)
- Bloods (FBC, U&E, BNP, lipids, glucose)
- CXR (calcified valves, LVH, pul. oedema)
- Echo ± doppler (severity, cause, LV function); severe AS:
- – Valve area <1cm2
- – Pressure gradient >40mmHg]
- – Jet velocity >4m/s
- Coronary angiography
Aortic stenosis Mx
General:
- MDT (cardio, GP, specialist nurse, surgeon, dietician)
- RF modification (statin, anti platelet, manage HTN angina)
- regular f/u
Surgery
1) open replacement
(ix: symptomatic, non-symptomatic w/ low EF (<50%), severe undergoing CABG)
–> artificial
——Starr-Edwards / ball-in-cage (3 artificial sounds:)
Quiet click as valve opens
Rumbling as ball rolls in the cage
Loud thud as valve closes
——Tilting disc / bileaflet [1 artificial sound]
High-pitched click as valve closes
–> biological (normal HS)
2) TAVI (transcatheter AV implantation)
+ve = no bypass required, no large scars
-ve = higher risk of stroke compared to open
3) balloon valvuloplasty
4) sutureless AV replacement
Aortic regurgitation
- peripheral signs
- pulse
- apex
- HS
- murmur
- all the peripheral signs e.g. Beckers, de musset, corrigans neck sign, quincke’s
- Corrigan’s pulse (water hammer), wide pulse pressure e.g. 180/45
displaced apex
HS: soft S2 + S3 (blood filling a compliant ventricle)
Murmur:
- Early diastolic murmur
- LLSE
Becker’s sign
AR
Retinal artery pulsation
Mueller’s sign
AR
systolic pulsations of the uvula
De Musset’s sign
AR
nodding head
Corrignan;s neck sign
AR
carotid pulsation
Quincke’s sign
AR
pulsatile nail bed
Traube’s sign
AR
pistol shot femoral pulses
Duroziez’s sign
AR
femoral artery compression - systolic murmur on proximal compression, diastolic murmur on distal compression
Severe AR S+S
collapsing pulse, wide PP, LVF
AR Ix
- ECG (LVH, LV strain – lateral lead TWI)
- Bloods (FBC, U&E, NT-proBNP, lipids, glucose, ESR, HLA-B27, ANA)
- CXR (cardiomegaly, LVH, pul. oedema)
- Echo ± doppler (severity, cause, LV function); severe AR:
Jet width (>65% outflow tract)
Regurgitant jet volume
Premature closing of mitral valve - Coronary angiography
AR Mx
General same as AS (MDT, RF modification, Regular FU)
Medical
- reduce afterload using ACEi, BB, diuretics
Surgical
- Vavle replacement before LV dilation and dysfunction:
- — Pulse pressure >100mmHg
- — ECG changes (TWI in lateral leads)
- — LV enlargement on CXR or EF <50%
Mitral stenosis
- peripheral
- pulse
- apex
- HS
- murmur
malar flush
- irregular AF pulse
- tapping apex (palpable S1)
HS
- loud S1 (early diastolic opeining snap) + loud S2 if pulmonary HTN
Murmur
- mid diastolic murmur - in left lateral position at end expiration in apex
- radiated to axilla
Severe MS S+S
malar flush, longer murmur, LVF
Evidence of pulmonary HTN
malar flush
raised JVP with large V waves
RV heave
Loud S2
MS Ix
- ECG (P-mitrale, AF)
- Bloods (FBC, U&E, NT-proBNP, lipids, glucose)
- CXR (LA hypertrophy (splaying of carina), calcified mitral valve, pul. oedema)
- Echo ± doppler (severity, cusp calcification, LV function, ? TOE); severe MS:
- – Valve orifice <1cm2
- – Pressure gradient >10mmHg
- – Pul. artery SBP >50mmHg
- Coronary angiography
Mitral stenosis Mx
General
- MDT, RF modification, regular FU
Medical
- RhF prophylaxis (benxyylpenicillin)
- AF - rate control and DOAC
- diuretics for Sx relief
Surgical (indication = moderate severe MS symptomatic or non)
1st = balloon vavluloplasty
- valvotomy / commissutotomy (valve repair)
- valve replacement if repair not possible
Mitral regurgitation
- pulse
- apex
- HS
- murmur
irregular pulse (AF)
Apex displaced
Sounds - Soft S1 (Loud S2 if pulmonary HTN)
Murmur
- pan systolic murmur
- left lateral position at end expiration in apec
- radiates to axilla
Severe MR S+S
LVF, AF
Mitral regurgitation Ix
- ECG (P-mitrale, AF, LVH)
- Bloods (FBC, U&E, NT-proBNP, lipids, glucose)
- CXR (LA/LV hypertrophy, calcified mitral valve, pul. oedema)
- Echo ± doppler (severity, cusp calcification, LV function); severe MR:
- – Jet width >0.6cm
- – Systolic pul. flow reversal
- – Regurgitant volume >60mL
- Coronary angiography
Mitral regurgitation Mx
General
- MDT, RF mod, regular FU
Medical
- AF (rate and rhythm control, anticoagulation)
(AR and MR medical mx is to reduce afterload)
Surgical (symptomatic)
- valve replacement / repair
Heart failure New York Heart Association Classification
1 – no limitation of activity
2 – comfortable at rest, dyspnoea on ordinary activity
3 – marked limitation of ordinary activity
4 – dyspnoea at rest
Normal EF
45-60%
HF Mx
BASHIeD up heart
BB ACEi Spironolactone Hydralazine / Ivabradine Digoxin
1st line
BB + ACEi / ARB
(reduced EF - use BB or ACEi)
(preserved EF - use loop diuretic)
BB + Entresto (Sacubitril+valsartan) if ejection fraction <35%
2nd line
BB + ACEi/ ARB + spironolactone
– monitor K
3rd line
Ivabradine - EF <35%, sinus rhythm HR >75
Hydralazine+ nitrate - best for afro-caribbean
Cardiac resynchronisation therapy if patient has widened QRS
Digoxin
Repeat echo in 3 months after starting treatment
Pneumococcal and flu vaccines
Contraindicated drugs in HF
Thiozoladinediones
Verapamil (-ve inotrope)
NSAIDs (fluid retention)
Glucocorticoids (fluid retention)
Flecainide (-ve inotrope, arrhythmogenic)
Angina S+S
Sharp chest pain
Precipitated by physical exertion
Relieved by GTN spray within 5 min
Criteria for stable, atypical and non-anginal pain
Stable 3/3
Atypical 2/3
Non <1/3
Stable angina Ix
1st - CTCA – calcium score
2nd - non invasive functional imaging
- MPS SPECT (Myocardial Perfusion Scintigraphy with single photon emission CT)
- stress echo
- first pass contrast enhanced MR perfusion
- MR imaging for stress-induced wall motion abnormalities
3rd - coronary angiography
Stable angina Mx
Conservative
- stop smoking, weight loss, healthy diet
All receive aspirin + statin
1st
- GTN + BB / CCB
BB = atenolol 50-100mg OD CCB = non-DHP, rate limiting e.g. verepamil, diltiazem
Increase to max dose
2nd
- GTN + BB + CCB
BB = Atenolol 50-100mg OD CCB = DHP, non-rate limiting e.g. nifedipine, amlodipine
3rd- other options (instead of BB/CCB):
- long acting nitrate e.g. ISMN 20-40mg BD or slow release nitrate Imdur 60mg OD
- Ivabradine
- Nicorandil
- Ranolazine
if a patient is taking both a beta-blocker and a calcium-channel blocker then only add a third drug whilst a patient is awaiting assessment for PCI or CABG
Secondary prevention of Angina
- aspirin 75mg OD,
- atorvastatin 80mh ON
- ACEi
- antihypertensives
Why can’t you give a BB with a non-DHP CCB
interacts with AVN conduction and can cause complete heart block
non-DHP CCB examples
Rate limiting
verapamil
diltiazem
DHP CCB examples
non rate limiting
amlodipine
nifedipine
BB CI
hypotension, bradycardia, asthma, HF
CCB CI
hypotension, bradycardia, peripheral oedema
DHP/ non rate limiting better than non-DHP for peripheral oedema
AF causes
- ischaemic heart disease
- rheumatic HD (MR, MS)
- hyperthyroid
- infection
- PE
- cardiomyopathy
- alcohol
Types of AF
Acute <48h
Paroxysmal - self limiting, <7d, recurs
Persistent - >7d, may recur even after cardio version
Stroke + AF - medication
Anticoagulant e.g. apixaban
Stroke + no AF - medication
Antiplatelet e.g. clopidogrel / ticagrelor
AF Mx
use rhythm control if
reversible AF
coexistent HF
new onset AF
Rhythm control in AF
Acutely
Antgicoagulation required if onset 24-48 hours, for 4 weeks
1st - electrical cardio version (synchronised DC shocks)
2nd - pharmacological cardioversion
- flecainide (young, no structural heart disease)
- amiodarone (old, structural heart disease e.g. HF)
Long term:
1st - BB e.g. bisoprolol
Paroxysmal – ‘pill in pocket’ flecainide (not in structural HD), amiodarone
BB failed/ CI –> amiodarone
Pacing
Rate control in AF
1st - BB e.g. bisoprolol or rate limiting CCB/ non DHP e.g. verapamil (CI in peripheral oedema)
2nd - digoxin
3rd - amiodarone
Anticoagulation in AF
remember that antiplatelets are used in arterial causes for clots e.g. atheroma
anticoagulation in venous causes
CHASVASC 1+ anticoagulate in men, 2+ in women
AF<48h - LMWH until assessemtn
AF >48h - Apixaban > dabigatran/rivoroxaban/warfarin
- for 3w before cardio version
- for 4w after cardio version if Chadvasc low/ for LIFE if chadvasc high or paroxysmal
Severe HTN BP
> 180/110
Signs of severe HTN
Ix
retinal haemorrhage pappiloedma confusion AKI chest pain
ADMIT
ECG, urine dip, blood tests,
HTN algorithm
If T2DM or <55 and not black
1) ACEi / ARB
2) ACEi/ARB + CCB/ thiazide like diuretic (indapamide)
3) ACEi/ARB + CCB + thiazide-like diuretic (indapamide)
4) spironolactone if K<4.5
a-blocker or BB if K>4.5
55+ or black
1) CCB
2) CCB + ACEi/ ARB/ thiazide-like diuretic
3) ACEi/ARB + CCB + thiazide like diuretic
4) spironolactone if K<4.5
a-blocker or BB if K>4.5
Who should we measure standing and sitting BP in?
People with
T2DM
people with sx of postural hypotension
80y+
BP targets
<80 and >80
<80
clinic BP <140/90
ABPM/HBPM <135/85
80 or more
clinic BP <150/90
ABPM/HBPM <145/85
What needs to be monitored before and during treatment with ACEi/ ARBs?
U+Es
increase up to 30% in creatinine is ok
increase in K up to 5.5mmol is ok
In which diseases are thiazides contradicted for use in HTN
CKD 4 5 (eGFR<30) DM gout dyslipidaemia SLE
primary prevention statin
Atorvastatin 20mg OD
if 10y risk 10%+ or T1DM or CKD eGFR <60
Secondary prevention statin
Atorvastatin 80mg OD
IHD or CVD or PAD
Risk factors for infective endocarditis
rheumatic heart disease IVDU Prostehtic valves congenital heart defects recent piercings
Valve affected in previously normal valves vs IVDU
normal – mitral valve
IVDU – tricuspid valve (first valve after venous circulation)
Organisms in IE
S aureus - IVDU, acute presentation
S epidermis - CoNS, prosthetic valves
S viridans - sub-acute presentation, developing world
culture negative organisms in IE and RF
RF
- prior abx, coxiella, bartonella, brucella, sub-acute presentation
HACEK
- H influenzae
- Actinobacillus
- Cariobacterium
- Eikenella corrodens
- Kingella
Criteria for IE
Dukes criteria - BE FEVEER
2 major or 1 major 3 minor or 5 minor
Major criteria
- Bacteraemia (2 cultures, 12 hours apart)
- Echo (vegetation, new murmur, abscess, dehisced prosthetic valve)
Minor criteria
- Fever >38
- Echo findings
- Vascular (embolus e.g. stroke PE, splinter haemorrhages, Janeway)
- Evidence of immunological involvement (Osler nodes, Rtoh spots, glomerulonephritis, RF)
- Evidence of microbiological involvement (1 culture +)
- RF e.g. IVDU, predisposing heart condition
IE S+S
FROM JANE
Fever
Roth spots
Osler nodes
Murmur
Janeway lesions
Anaemia
Nail haemorrhage (splinter)
Emboli
IE Mx
blind therapy native / prosthetic valve
blind therapy
native valve
- amoxicillin
± gentamicin (low dose)
prosthetic valve
- vancomycin + rifampicin + LD gentamicin
IE Mx
Native valve, staphylococci
Flucloxacillin
IE Mx
Prosthetic valve, staphylococci
Flucloxacillin + rifampicin + LD gentamicin
IE Mx
Streptococci (fully sensitive)
benzylpenicillin
IE Mx
Streptococci (not fully sensitive)
Benzylpenicillin + LD gentamicin
IE Mx
if pen allergic or MRSA
Amoxicillin –> vancomycin + LD gentamicin
Flucloxacillin –> vancomycin + rifampicin
rheumatic fever/ heart disease aetiology
Group A β-haemolytic streptococcus (S. pyogenes; GAS)
rheumatic fever/ heart disease
latent interval
2-6 weeks after pharyngeal infection
rheumatic fever/ heart disease
S+S
poly arthritis (tender joints, swelling) pericarditis (endocarditis, myocarditis, pericarditis) erythema marginatum
synenham;s chorea 2-6 months later
rheumatic fever/ heart disease chronic progression
MS
chronic progression in 60-80%
rheumatic fever/ heart disease
diagnostic criteria
Jones criteria
2 major or 1 major + 2 minor
Major = CASES
- carditis
- arthritis
- Subcutaneous nodules
- erythema marginatum
- syndenham’s chorea
Minor = FRAPP
- fever
- raised ESR./ CRP
- arthralgia
- prolonged PR interbal
- previous RF