Cardio Flashcards
What is ACS
Acute coronary syndrome
What makes up ACS
- Unstable angina
- NSTEMI
- STEMI
What are the 2 treatment subcategories of ACS
NSTEMI/Unstable angina and STEMI
What does STEMI mean and look like on ECG
St elevation myo infarction
What are some clinical signs of ACS (5)
- CENTRAL CRUSHING CHEST PAIN
- SWEATING
- LEFT NECK AND ARM PAIN
- DYSPNOEA
5 REDNESS
ATYPICAL presentations of ACS (3)
Epigatsric pain
Fatigue
Breathing problems
First line treatment for ALL ACS
300mg aspirin
Oxygen if sats less than 94
Morphine if BAD chest pain (contraindicated otherwise)
Nitrates (HYPER TENSIVE NOT HYPO TENSIVE and chest pain)
STEMI tx?
ECG and angio and trop
300 mg aspirin
Oxygen/morphine if needed
Nitrates
PCI (if within 12 hours or 120 mins)
Thrombolysis
With antithrombin
NSTEMI tx
ECG and if n stem no angio
300 mg aspirin
Nitrates
Oxygen/morpine
Dual antiplatelet - aspirin and unfractioned heparin/fondaparinux
Risk factors for ACS (modifiable)
Bad diabetes control
Smoking
HTN
Bad diet
Obesity
risk factors for ACs (NOn modifiable
Age (60-70)
Male. (2:1)
Fhx
What class predicts post MI morbidity
Killip
What system determines interventions ?
GRACE (>3.0 = angio)
Two types of AHF
De novo AHF or decompensated AHF (more common)
what is AHF
Acute herat failrue
how is AHF treated
oxygen, diuretics, vasodilators, opiates and CPAP
how is acute pericarditis caused?
viral infection, neoplasm, trauma, TB, HIV, post MI
what acute pericarditis
infection of the pericardia sac
what bedside tests are done for pericarditis
- FBC U&E CRP ESR TROP
- ECG
- Echo
- CHest XR/CT/RI
What does xray/mri/ct show?
pleural effusions
what does u&e show for pericarditis?
uraemia may be a cause
what is shown on pericarditis ecg?
widespread ST elevationa and pr depression
what does echo show on pericarditis patients?
effusion
typical signs and symptoms of pericarditis?
pericardial rub (squeaky on auscultation)
pleuritic chest pain/retrospinal and radiate to traps
tx for pericarditis
nsaids and colchicine
what can relieve pericaridits chest pain?
leaning forward/sitting up
What is an aortic dissection
Pulling away of endothelial lining creating a fake lumen
What is the classification of aortic dissections?
Sanford and Debakey
What is the Sanford classification
Classifies aortic dissection into TYpe A and type B
What is Sanford type a?
Ascending aorta aortic dissection
What is Sanford type B
Descending aorta aortic dissection
What is debakeys classification
Aortic dissection classification
Type 1 - 3
Type 1: ascending adn aortic arch
Type 2: arch
3: descending on wards (less serious)
What is management for type a Sanford
Surgical repair
What is management for type B Sanford?
Conservative management, NSAIDS and colchicine
What is classified as stage 1 hypertension?
> 140/90
what is stage 2 hypertension?
160/100
What is stage 3 hypertension
> 180/120
What should be the ABPM/HBPM be stage 1?
> 135/85
What should the HBPM/ABPM be stage 2?
150/95
Step 1 HTN Tx?
Diabetic type 2 OR <55 = Ace inhibitor OR ARB
Step 1 HTN tx?
Pt. >55 OR black = CCB
Step 2 HTN Tx?
Already on ACE/ARB (A) + C OR D
- CCB
- thiazide Diuretics
Already on CCB + ACE/ARB OR D
equation for HTN tx?
A+C, A+D, C+A, C+D
What drug is contraindicated in black people with HTN
ACE inhibitor, preference is CCB
Step 3 HTN Tx?
A+C+D
Step 4 HTN Tx?
Resistant HTN:
1. Postura hypotension
2. K+ < 4.5 + spironolactone
3. K+ > 4.5 + alpha/beta blocker
What cardiac problem increases risk of stroke?
AF
What is a direct thrombin inhibitor??
Anticoagulant
Examples of anticoagulant
Apixaban
After caused stroke Tx?
Warfarin, direct thrombin (apixaban) or factor Xa
Examples of direct thrombin inhibitors?
Bivalirudin
Examples of factor Xa inhibitor??
Apixiban, rivaroxiban etc
What is a common antiplatelet drug
Clopidogrel
When should prasurgrel be used in ACS
Prior to PCI, if patietn is NOT on oral anticoagulant
When should Clopidogrel be used over prasugrel?
Clopidogrel used if patient is already taking an anticoagulant
When PCI is not possible what tx would you use?
Antithrombin (ban) and ticagrelor
What is SVT
Supraventricular tachycardia, tachycardia that occurs anywhere but the ventricles
What is seen on the ECG of SVT
Narrow complex tachycardias
What management is used for SVT
Vagal manoeuvres
IV adenosine
Electrical cardioversion
what are examples of vagal manoeuvres
Valsalva manoeuvre
Carotid sinus massage
When is IV adenosine not to be used?
Asthmatics
What does LAD stand for and perfume?
Left anterior descending - septum and anterior left ventricle
Right coronary arteries perfume what?
SAN and AVN
PDA stands for what and perfumes what?
Posterior descending artery and posterior left ventricle
Left circumflex supplies what?
Left atria and left ventricle
What is atherosclerosis
Build up of plaque underneath blood vessel walls causing narrowing or potential occlusion of vessels
What disease can atherosclerosis cause?
Stable/unstable angina
What is a key symptom of stbale angina?
Chest pain/dyspnoea on exercise
What relieves stable angina?
GTN (sublingual spray)
How to investigate someone with potential angina?
ABCDE
OBS - HR, BP, RR, SATS
ECG
BLOODS - FBC, U+E,LFT, TFT TROPONIN
CXR
CTPA
What is the baseline treatment for ACS/angina?
MONA
- morphine
- oxygen if under 94%
- nitrates if not hypotension
- 300mg aspirin
How does STEMI present on ECG?
Hyperacute T wave and ST elevation
What leads does LBBB/RBBB indicate
WilliaM MarroW (V1&6)
Changes to leads I + V5,V6 indicate what?
Issues with left circumflex artery (lateral issue on heart)
Changes to lead II, III, aVF indicate?
Issues to right coronary arteries (inferior)
Changes to leads V1,2,3,4 indicate what?
Issues in Left Anterior Descending artery (left v and atria), anterior
Management of a STEMi with possibility of PCI?
Everyone gets 300mg aspirin
If symptoms have lasted less than 12 hours, and, can get a PCI in 120 mins - PCI is done
- praugrel (Clopidogrel if DOAC is already being taken or if at bleeding risk)
- unfractioned hep/ bailout glycoprotein (radial access)
Treatment of STEMI without possibility of PCI
Thrombolysis/Fibrinolysis
- give antithrombin (tpa/alteplase)
- Offer ECG after fibrinolysis
- ticagrelor and aspirin unless high bleeding risk
- Clopidogrel aspirin if high bleeding risk
What should be given first line instead of Clopidogrel if NOT at bleed risk
Ticagrelor
What antithrombin should be given in thrombolysis/ fibrinolysis
Tpa and Alteplase
Management of NSTEMI
Aspirin 300mg
Fondaparinux
GRACE score (>3%) = PCI
(<3%) = ticagrelor management (Clopidogrel if bleed risk)
What is Killip Class?
Measure post-MI mortality
What does Class 1 Killip mean?
No problems
What does class 2 Killip mean?
Bibasal lung crackles
What does Class 3 Killip mean?
Pulmonary oedema and elevated JVP
What does class 4 Killip mean?
Cardiogenic shock
Stage 3 HTN?
180/ Diastolic >120
Stage 2 HTN?
160/100 - clinical
HBPM/ABPM - 150/95
Stage 1 HTN?
140/90 - clinical
135/85 - HBPM/ABPM
What are 2 key symptoms of HTN
Headaches and visual disturbances/changes - hypertensive retinopathy
What are mai causes of hTN
Family history?
Renal disease
Renal artery stenosis
Conns syndrome
Phaeochromocytoma
HTN with T2DM treatment pathway
Ace inhibitor (ARB if black)
Ace + CCB
Ace + CCB + Thiazide diuretic
Ace + CCB + Diuretic + spironolactone/beta
HTN treatment without T2DM
CCB if (+55 and black)/ARB (if <55)
CCB + Ace/ARb
CCB + Ace/ARB + Diuretic
CCB + aCE/ARB + Diuretic + Spironolactone/beta
Investigation for arrhythmias?
ECG (lead 2 changes)
Bloods (fbc,LFT,u+e,tft + TROP)
STRUCTURAL ISSUE = toe
Examples of arrhythmia?
Brady or tachy
Types of tachy?
Broad or narrow
Examples of broad complex tachy?
VF VT
Examples of narrow complex tachy
SVT
- af/ flutter
- sinus tachy
What is define as narrow complex tachy
QRS <120m/s
SVT (above AV Node)
what are symptoms of narrow complex tachy?
Chest pain/left arm + neck pain
SOB
palpitations
Pre-syncope
What sign is seen in lead 2 for sinus tachy?
Upright p wave
What sign is seen on ECG for atrial flutter?
Sawtooth ECG
What is atrial flutter
Slow depolarisation due to a single irritable foci Location: RA/tricuspid valve
Treatment of atrial flutter?
Verapamil or DCC if serious
Treatment of sinus tachy
Beta blocker +/- CCB
What is AF
Atrial fibrillation caused by multiple irritable foci
What is an ECG sign for AF
No p wave
Tx for AF
Flecanide if no structural problem or amiodarone
What is AVRT
Atrioventricular re-entry tachy (WPW)
What can be seen on ECG with AVRT
200-300bpm, ST depression and positive aVR
What is the main issue with AVRT
Doesn’t allow ventricles to fully fill and gives reduced CO (cardiac output)
What is AVNRT
Av node Reentry tachy - Reentry pathway in the AV node
Management for SVT?
Vagal manoeuvres (carotid massage, valsalva)
Adenosine
Verpamil
DCC
How does adenosine work??
Slows electrical conductivity
How does verapamil work?
Calcium channel blocker (blocks calcium and thus contractility of the heart and causes blood vessel dilatation)
What is broad complex tachy defined as?
QRS>120 ms
What is VT
Ventricular tachycardia
Has 2 subgroups sustained and non-sustained
What is non-sustained VT
> 3 consecutive episodes that resolve that are <30sec
Re-entry due to ischaemic changes of the heart (usually post-MI)
What is sustained ventricular tachycardia
Consecutive fitting >30secs
EMERGENCY (iv amiodarone if stable)
DCC needed
what is VF
Ventricular fibrillation
Uncoordinated quivering of the ventricles
Main problem with VF
NO CARDIAC OUTPUT
What is a shockable rhythm?
VF and VT
Management of VF
2 shocks of defib, 1mg adrenaline, 2 shocks, 1 more defib, 300mg amiodarone
What are non0shockable rhythms
Pulseless electrical activity or asystole
What is prolonged QT interval
460ms + in women
440ms + in men
What is depolarisation
Contraction of ventricles
What is repolarisation
Recovery period of myocyets (heart muscle)
What is the problem with prolonged repolarisation
Spontaneous depolarisaions can occur
What is an afterdepolarisation
Spontaneous depolarisations before full repolarisation is done
What is Torsades de pointes
Recurrent contractions without proper repolarisation
- subtype of VT
What can cause prolonged QT
Long QT syndorme (inherited)
Medications such as antipsychotics or sotalol
Hypokalaemia, hypomagnesameia and hypo calcaemia
Management of prolonged QT
Stop medications causing it
Correct electrolyte disturbances
Beta blockers (NOT SOTALOL)
Pacemaker
What is ventricular ectopics?
Random skipped beats completely normal in healthy people otherwise seek cardiac specialist help
What is a Brady arrhythmia?
Sinus HR of <60BPM
When is a pacemaker needed in Brady cardia
Sinus Brady
Sick sinus syndrome
Junctional escape rhythm s
What is sick sinus rhythms
Deterioration if SAN
What is junctional escape rhythms
AVN trying to send impulses, NO P WAVE ON ECG
What are the types of Heart Block
First degree
Second degree (mobitz 1/wenckebach OR mobitz 2)
Third degree
What is first degree heart block
Problems conduction post AVN but every atria signal does eventually cause ventricular contraction
ECG changes on first degree heart block?
PR interval >0.2secs
Every p wave is followed by qrs
What is second degree heart blocks
Some atrial impulses dont make it past AVN = sometimes not ventricular contraction = no QRS
ECG changes on second degree
P waves are not always followed by QRS
What is mobitz 1/webnkeback when doiscussing ECG
Eventual prolongation of pR internal until QRS is eventually dropped
(SAN is getting to AVn but struggling until failure)
What is mobitz type 2
Random dropped beats due to AVN not contracting 3 p waves (SAN impulses) for every 1 QRS (AVN contraction)
tx for second type 2 heart block
Pacing as risk of asystole
What is 3rd degree heart block
Complete heart block - no relationship between p or QRS. Not conducted.
What is a main symtpom of chronic heart failure
Pulmonary oedema
( backlog of blood in ventricles/atria/pulmonary veins and lugs = more pressure and fluid in the space = pressure of blood filtration into interstitial space = oedema)
What is ejection fraction
percentage of blood that leaves left ventricle in each contraction
What is normal ejection fraction
> 50%
What is persevered ejection fracture heart failrue
Diastole has issues (ventricle isn’t opening up/refilling properly leading issue to space.= more pressure etc)
What are the main causes?
- ischaemia
- valvular disease
- HTN
- arrhythmia
- cardiomyopathy
What investigations would you do for heart failure
BNP
ECH
Echo (ejection fraction)
Bloods CXR/Lung function
what is the New York heart association classification (NYHAC)
SEVERITY OF SYMPTOMS
What is class 1 NYHAC
NO LIMITATION
What is class 2 NYHAC
Comfortable at rest but symptoms with ordinary activities
What is class 3 NYHAC
Comfortable at rest but symptomatic with any activity
what is class 4 NYHAC
Symptomatic at rest
Tx for chronic heart failure
ABAL
what does ABAL mean
Ace inhibitor (ramipril) (ARB can be used if not tolerated or valve disease)
Beta blocker (Bisoprolol)
Aldosterone antagonist (spironolactone)
Loop diuretic (furosemide/bumetanide)
4 types of valvular disease?
Aortic stenosis
Aortic regurg
Mitral stenosis
Mitral regurg
What is the most common valvular disease
Aortic stenosis
What does aortic stenosis stop the heart doing
Narrows valve = reduced blood flow from left ventricle to aorta to body
What sound does aortic stenosis make
Crescendo decrescendo
Where does an aortic stenosis murmur radiate
Carotids in the neck
OSCE tip to emphasise murmur of aortic stenosis
Sit forward
Deep breath
Exhale
Hold
Usual cause of aortic stenosis
Calcification (age related)
Bicuspid aortic valve
Rheumatic disease
What is aortic regurg
Incompetent aortic valve
Always back flow from aorta (after contraction) back into left ventricle
What sound does aortic regurg make
Early diastolic (soft) murmur
Decrescendo
What is the S1 sound depicting
Closure of atrioventricular valve
- tricuspid
- bicuspid
What is S2 sound depicting
Closure of the semilunar valves
- pulmonary
- aortic
What is systole
Contraction
Austin flint?
Murmur heard at apex beat in aortic regurg, rumbling
Collapsing pulse is seen in?
Aortic rgeurg
Causes of aortic regurg
Age related weakness
Bicuspid
Connective tissue discords (marfans/ehlers danlos)
What is mitral stenosis
Narrowing of the bicuspid valve restricting blood flow from left atrium to left ventricle
What sound does mitral stenosis give?
Mid-diastolic, low pitched rumbling (low blood flow velocity)
Other signs of mitral stenosis?
Malar flush
Causes of mitral stenosis
Rheumatic
Infective endocarditis
What is mitral regurg
Incompetent mitral valve allow back flow from left ventricle to left atrium
What complications come from mitral valve regurg
Back flow of blood = CHF
Reduced ejection fracture
What sounds does the mitral regurg murmur sound like
Pansystolic murmur
Where does mitral valve regurg radiate
Left axilla,
Causes of mitral regurg
Age
Ischameia
Rheumatic
Connective tissues
OSCE tips to hear mitral regurg murmur
Lying on left
Investigations for valvular disease
Echo