Cardiology Flashcards
3 classical features of stbale angina
Chest pain - radiation to left arm/jaw/neck
Brought on by exertion
Relieved by rest / GTN spray
Causes of angina
IHD
Coronary artery vasospasm
Decubitus
Stable angina sx
Dyspnoea
Nausea
Sweatiness
Faintness
Precipitating factors for angina
Emotion
cold weather
heavy meals
Stable angina Investigations
Bloods
ECG
- ST depression
- T wave inversion
Stable angina diagnostic investigations
CT coronary angiogram
Stress echocardiography
Cardiac MR
Stable angina management
- Lifestyle
Smoking cessation
Excercise
Dietary advice
Weight loss
Stable angina management
- Pharmacological
RF modification
- Asprin
- Statin
Symptomatic releif
- GTN spray
Antianginal medications
- Bisoprolol or Amlodopine
- Switch
- combine
- 3rd drug - Isosorbide dinitrate
Stable angina management
- surgical
PCI
- DAPT
- Risk of thrombosis and restenosis
CABG
What is unstable angina
Sudden new onset angina
Significant deterioration in angina
Pain with increasing frequency
Occurs on minimal exertion or rest
Unstable angina investigations
ECG - ST depression
Cardiac enzymes
FBC
Coronary angiogram
Unstable angina management
RF modification
- Statin
- ACEi
Reduce CV events
- Aspirin + Clopidogrel
- Fondaparinux / LMWH
Symptomatic
- GTN spray
Anti-anginal medications
- Bisorpolol
- Amlodopine
- Nitrates
Differences in Investigations
- Unstable angina
- NSTEMI
- STEMI
Unstable -
Normal ECG / ST depression
Normal troponins
NSTEMI -
ST depression / T wave inversion
Raised troponins
STEMI
ST elevation
New onset LBBB
Raised troponins
Myocardial infarction presentation
Chest pain - radiation Occurs at rest Nausea dyspnoea palpitations sweatiness pallor
Silent MIs presentation
Pulmonary oedema
epigastric pain
vomitting
syncope
STEMI Investigations
ECG
- Hyperacute t waves
- ST elevation
- New LBBB
- T wave inversion - days
- Pathological Q waves - days
Bloods
- Troponin
- creatnine kinase
CXR
MI Acute management
Pre hospital
- Aspirin
- GTN
Hospital M - Morphine O - O2 N - GTN A - Aspirin + clopidogrel
STEMI acute management
Reperfusion therapy
- Angiography + PCI
Within 12hrs of STEMI onset
- Thrombolysis
PCI unavailble within 2hrs
PCI
- Medications given prior
DAPT
- Aspirin
- Ticagrelor
Tirofiban - GPIIb/IIa
LMWH
MI Complications
Death Arrhythmias Tamponade HF Valve disease Dresslers syndrome Embolism
Chest pain differential dx
MI Angina Pericarditis Rib fracture Anxiety PE Pneumonia GORD Cholecystisis
NSTEMI/UA risk stratification
GRACE - Global registry of acute coronary events
- 6m mortality risk
TIMI - Thrombolysis in MI
- 14 day all cause mortality risk
Other causes of increased troponins
HF Tachyarrhytmias sepsis myocarditis PE Aortic dissection Chronic renal failure
Secondary prevention following MI
Beta blocker ACEi Clopidogrel Aspirin Statin
AAA Presentation
Asymptomatic
Pain - lower back
AAA Examination findings
Pulsatile abdominal mass
Auscultation - Bruit
Tachycardia
AAA Investigations
Abdominal IS
CT scan - IV Contrast
X - Ray
AAA complications
Aortic dissection
TAA Risk factors
Arterial HTN CTD - Ehlers danlos - Marfans Bicuspid aortic valve Trauma Smoking
TAA presentation
Thoracic back pain chest pressure Dysphagia cough Upper venous congestion - Mediastinal compression
TAA Investigations
CXR
TOE echo
CT angiogram chest
TAA Complications
Embolism
Aortic valve regurgitation
TAA rupture
Aortic dissection
What classification is used for heart failure
NYHA
Causes of systolic HF
HTN
MI
IHD
Cardiomyopathy
Causes of diastolic HF
Constrictive pericarditis
Obesity
Restrictive cardiomyopathy
HF Compensatory mechanisms
Increase HR
RAAS Activation
- Increases afterload + preload
SNS Activation
- Afterload - Vasoconstriction
- Increased HR
- Increased preload
- Increase contractability
HF cardiac changes
Ventriuclar dilatation
Myocyte hypertrophy
HF presentation - Sx
SOB Fatigue Ankle swelling Orthopnea - PND Cough - Sputum - Pink/frothy (PO) Weight loss
HF Examiantion findings
Palpation
- Displaced apex beat
- Raised JVP
- Oedema
- Tachycardia
Auscultation
- 3rd + 4th heart sounds
- Narrow pulse pressure
- Bibasal lung crackles
HF investigations
Bloods
- BNP
- Cardiac enzymes
- FBC
- LFTs (Heaptomegaly)
CXR
ECG
- L.V hypetrophy
- Ischaemia
Echo - Gold standard
- Conducted if BNP too high
HF CXR findings
A - Alveolar oedema B - Kerely B lines C - Cardiomegaly D - Dilated prominent lobe vessels E - Pleural effusion
HF Management - Pharmacolgical
Symptomatic relief
- Furosemide
Disease - altering
1st = Ramipril + Bisoprolol
2nd= Spirinolactone
3rd = Digoxin
Causes of increased BNP
DM Sepsis Old age HF PE COPD Kidney disease Liver cirrhosis
Acute HF management
100% O2
Diamorphine
Furosemide
Nitrates
Causes of Cor pulmonale
COPD
Bronchiectasis
Pulmonary fibrosis
Sever chronic asthma
HTN presentation - Sx
Asymptomatic
Headache
visual disturbance
Chest pain
HTN presentation - signs
Bilateral retinal haemorrhages
Papilloedema
HTN complications
- eyes
- cardiac
- renal
- neurological
- Gu
Retinopathy
LVH
HF
IHD
PVD
Renal failure
Proteinuria
Headache
nausea
vomitting
stroke/TIA
Impotnece
Malignant HTN - Retinal changes
Flame shaped haemorrhages
Cotton wool spots
Hard exudates
Papilloedema
HTN investigations
Clinical spygmammoter
24hrs ABPM
Test for end organ damage:
- ECG/Echo
- Urinalysis
- Fundoscopy
- Retinopathy
Stage 1 HTN
Clinical BP = 140/90
ABPM = 135/85
Stage 2 HTN
Clinical BP = 160/100
ABPM = 150/95
Stage 3 HTN
Clinical BP = 180/120
IMMEDIATE TX
When is treatment given in HTN
ABPM < 135/85 - No tx
ABPM > 135/85
Tx - If QRisk2 is >20%
ABPM >150/95 - Tx
HTN Management - lifestyle
Weigh tloss
reduce alcohol intake
reduce salt intake
smoking cessation
Causes of a systolic murmur
Aortic stenosis
- Ejection systolic
Mitral regurgitation
- Pansystolic
Causes of diastolic murmur
Aortic regurgitation
- Early diastolic murmur
Mitral stenosis
- Mid diastolic murmur
What does S1 represent
Mitral and tricuspid valve closure
What does S2 represent
Aortic and pulmonary valve closure
What is S3 common in
MR
HF
Causes of aortic stenosis
Calcification
RHD
Bicuspid valve
Aortic stenosis presentation
DASH D - Dyspnoea A - Angina S - Syncope H - HF (LVH)
Aortic stenosis signs
Slow rising carotid pulse
Narrow pulse pressure
Carotid radiation
Ejection systolic murmur
Aortic stenosis investigations
Echo
ECG
- LVH with strain
- P mitrale
- LAD
CXR
What is aortic sclerosis
Senile degeneration of valve - Ejection systolic murmur but no carotid radiation
Causes of mitral regurgitation
IHD Annular calcification RHD Pappilary muscle failure - MI Mitral valve prolapse - Ehlers danlos + Marfans
Mitral regurgitation presentation
Exertional dyspnoea
fatigue
palpitations
Mitral regurugitation signs
Auscultation -
Pansystolic murmur - Apex radiates to axilla
Soft S1
Palpation
Displaced apex beat
What causes tall peaked P waves in lead II
Right atrial enlargement
What causes bifid P waves
Left atrial enlargement
Mitral regurgitation investigations
Echo
ECG - AF / LVH
CXR - Larger L.A
Causes of aortic regurgitation
IE
Ascending aortic dissection
Trauma
Aortic regurgitation presentation
PAD
P - Palpitations
A - Angina
D - Dyspnoea
Aortic regurgitation signs
Auscultation
- wide pulse pressure
- early diastolic murmur
Palpation
- Collapsing pulse
- Displaced apex beat
Causes of mitral stenosis
RF
IE
Mitral annular calcification
Mitral stenosis presentation
Dyspnoea fatigue palpitations chest pain haemoptysis R. Heart failure sx
Mitral stenosis signs
Malar flush
Palaption -
Raised JVP
Low volume pulse
Auscultation
Mid - diastolic murmur
When can a Mitral stenosis mumrur be heard the best
Patient laid in L- side + Expiration
Charecteristics of Mitral regurgitation murmur
At apex and spreads to axilla
When can a Aortic regurgitation mumrur be heard the best
Sitting foward
What classifies a narrow complex tachycardia
QRS < 120ms
Causes of sinus tachycardia
Anaemia infection fever Thyrotoxicosis Acute PE Hypovolaemia Atropine
What si the 1st line management of SVT
Adenosine
Causes of AF
SMITH S- Sepsis M - Mitral pathology I - IHD T - Thyrotoxicosis H - HTN
AF - sx and sign
sx -
- chest pain
- palpitations
- dyspnoea
signs -
- Irregularly irregular pulse
AF Investigations
ECG
- Rapid and irregualr QRS complexes
- no p waves
- Irregualrly irregualr pulse
Acute AF management
Rate control
Beta blockers - Atenolol
CCB - Diltiazem
Rhythm control -
Time of onset established
<48hrs - Cardioversion
> 48hrs - Anticoagualtion
- Warfarin
- Rivaroxiban
CHA2-DS2-VASc score
C - CCF H - HTN A - Age > 75 D - DM S - Stroke V - Vascualr disease A - Age (65-74) S - Sex - female
What is used to assess bleeding score when considering anticoagualtion
HASBLED H - HTN A - Abnormal liver/renal fucntion B - Bleeding L - Liable INRs E - Elderly D - Drugs / alcohol
Atrial flutter management
Beta blockers
DC cardioversion
Anti-coagualtion - warfarin
Radiofrequency catheter ablation
Cause of AV re entrant tachycardia
Incomplete seperation atria and ventricles leads to accessory pathyway
- Prone to AF
Accessory pathway in Wolff parkinson white syndrome
Bundle of kent
WPWS investigations
Short PR Interval
Wide QRS complex
Delta wave
WPWS Tx
Haemodynamic instability –> Cardioversion
Haemodynamically stable –>
1 - Carotid massage
2- Valsalva manoevere
3- Adenosine
Surgical
Catheter ablation - AVRT
Most common post - MI arrhythmia
Ventricualr ectopics
Causes of ventricular tachycardia
Long QT
Digoxin toxicity
Ischaemia
Scarring
VT treatment
Unstbale -
Electrical cardioversion + Amiodarone
Stable -
Beta blockers + Amiodarone
Ventricualr fibrillation Investigations
ECG
- Shapeless rapid oscillations
- No organised complexes
VF causes
Ventricualr ectopic beats
Shockable hearth rhythms
VF
VT
Causes of long QT syndrome
Hyponatraemia Hypocalcaemia Hypomagneasemia Amiodarone Tricyclics
Tx of sinus bradycardia
Atropine
Causes of 1st and 2nd degree HB
Athletes Inferior MI AVN vlocking drugs Myocarditis Hypokalemia
Cause of 3rd degree HB
Congenital heart disease IHD Infection HTN Drug - induced
Causes of LBBB
IHD
Aortic valve disease
HTN
Cardiomyopathy
Causes of RBBB
PE IHD ASD VSD Cor pulmonale
Acute limb ischaemia defenition
End stage of PAD
Inadequate blood supply to the limg to allow it to fucntion normally at rest
What is intermittent claudication
Ischaemia in a limb during exertion
- Relieved by rest
Examiantion signs of PVD
- Buergers angle < 20 degrees
- Absent femoral/popliteal/foot pulses
- Punched out ulcers
- CRT > 15s
Chronic limb ischaemia stages
Asymptomatic
IC
Ischaemic rest pain
Ulceration / gangrene
IC presentation
Cramping pain
Induced by excercise
Relieved by rest
Critial ischaemia presentation
Ulceration
gangrene
foot pain - NOCTURAL + at rest
Relieved by hanging foot over bed
Critical limb ischaemia investigations
1st - Colour duplex US
2nd - ABPI
- PAD (0.5-0.9)
- Critical limb (<0.5)
Bloods
CT angiography
Critical limb ischaemia management
Treat HTN
Atorvastatin
Quit smoking
Clopidogrel
Acute limb ischaemia presentation
6P's Pain pulseless parasthesia perishigly cold paralysis pale
Acute limb ischaemia management
Emboli - Surgical embelectomy
Heparin
Sepsis 6?
BUFALO Blood cultures Urine output Fluids Abx Lactate O2
Teratology of fallot charecteristic features
Over riding aorta
VSD
Patent ductus arteriosis
Pulmonary stenosis
Teratology of fallot presentation - sx + signs
Cyanotic (R–>L shunt)
Squatting
Pulmonary stenosis murmur
Teratology of fallot investigations
CXR - Boot shaped heart
Echo
VSD
- Presentation
- Signs
SOB
Poor feeding
failure to thrive
Pan-systolic murmur
Signs of co-arctation of aorta on exmaination
Radiofemoral delay
R.arm HTN
Scapular bruit
Causes of pericarditis
Coxsackie B EBV TB Rheumatoid arhtiritis Kidney failure - uraemia Post - MI
Pericarditis presentation
Chest pain
- Pleuritic
- Worse on lying down
- Relieved by sitting foward
Fever
Dyspnoea
Pericarditis investigations
Auscultation
- Pericardial friction rub
Bloods
ECG
- Saddle shaped ST elevation
- PR depression
- Flattened t waves
- T wave depression
ECG - Pericardial effusion
Pericarditis management
NSAIDs
Aspirin
Colichine
What decreases the recurrence of pericarditis
Colchicine
What is given for recurrent pericarditis
Prednisolone
complications of pericarditis
Pericardial effusion –> Cardiac tamponade
Constrictive pericarditis
What is beck’s triad
Muffled heart sounds
increased JVP
Falling BP
Most affected valves in IE
Tricuspid
IE most common cause
Streptococcus viridans - new cardiac murmur
Cause of IE in:
- IVDU
- Dermatitis
- DM
Staphylococcus aureus
Cause of IE in:
Metallic valve replacement
Staphylococcus epidermitis
Describe staph.Aueus
Gram +ve staphylococcus
coagulase +ve
Gold clumping
Describe staph.Epidermididtis
Gram +ve Staphlococcus
coagulase -ve
Describe Viridans streptococci
Gram +ve streptococci
Alpha - haemolytic
Optocjin resistnat
IE presentation
Fever + new murmur
FROM JANE F - Fever R - Roth spots O - Osler nodes M - Murmur
J - Janeway lesions
A - Anaemia
N - Nails SH
E - Emboli
Clubbing
IE investigations
Blood cultures
Echo - vegitations
Bloods
Urinalysis
ECG
- HB
- Long PR interval
IE diagnostic criteria
Duke modified criteria
IE management - Emperical tx
Ampicillin + flucloxacillin + gentamicin
IE Management - Step
Benzylpenicillin + gentamicin
IE Management - Staph
Vancomycin + Rifampicin
IE Prophylactic therpay
Amoxicillin
Clindamycin
How long should the PR interval last
120 - 200ms
Which is the most effect Beta-blocker post MI
Propanolol
Blocks Na+ channels
Why is Verapamil more effective than amlodopine
No effect on Ca2+ at rest
Indication of adenosine
1st line - SVT
Adenosine S/E
Bradycardia
Impending doom
Indication od amioderone
Last line Tachyarrhythmias
Amiodarone S/E
QT prolongation Grey skin Hypo/hyper thyroidism Hepatitis Sun sensitivity
Tx for Bradyarhytmias
Atropine
Atropine S/E
Tachycardia
dry mouth
constipation
MOA -
- Thiazides
- Loop
- Aldosterone antagonist
DCT - Na+/Cl-
Asceding loop - Na+/k+/Cl
DCT
Loop diuretics S/E
Hypotension
Low electrolyte state
Hearing loss
tinitus
Thiazide diuretics S/E
Hyponatraemia
Hypokalaemia
Impotence
IGT
CYP450 inhibitors
Macrolides - erythromycin
Diltiazem
Amiodarone
CYP450 Inducers
Carbamezepine
Phenytoin
Rifampicin
Causes of radio-radial delay
Sublavian artery stenosis
Aortic dissection
Aortic co-arctation
Slow rising pulse
Aortic stenosis
Thready pulse
Intravascualr hypovolaemia - Sepsis
Collapsing pusle
Fever Pregnancy Aortic regurgitation Patent ductus arteriosus Anaemia Thyrotoxicosis
What is a corneal arcus
Yellow/grey ring around iris - Hypercholesterolaemia
What is Buerger’s test
Ischaemia severity indicator
- Positive = Legs turn Red/Purple
What is lipodermatosclerosis
Hardening of the skin distally and swelling of the calf
Where is the SFJ located
4cm lateral and 4cm inferior to the pubic tubercle
What does the tap test indicate
Thrill felt by finger at SFJ
Continuity of the vein secondary to valve incompetancy
What does the Trendelenburg test Indicate
Tourniquet at SFJ
Veins refill - Problem below torniquet level
Veins don’t fill back up - Problem above torniquet level
Bounding pulse
Aortic regurgitation
CO2 retention
Narow BP
Aortic stenosis
CCF
Cardiac tamponade
Wide BP
Aortic reguritation
Aortic dissection
Positive hepatojugular reflux test
Constricitve pericarditis
RVF
LVF
Restrictive cardiomyopathy
Parasternal heave
RVH
Pulsating hepatomegaly
Tricuspid regurgitation
Function of calcium gluconate in hyperkalaemia
stabalises cardiac membrane
Function of insulin in hyperkalaemia
Drives extracellular K+ into the cell
Mobitz type 1 presentation
Lightheaded
dizzy
syncope
Mobitz type 2 presentation
SOB
Chest pain
Postural HTN
Post MI medications
DABS DAPT - Asprin + Ticagleror A - Ramipril B - Bisoprolol S - Atorvastatin
Acute NSTEMI Management
BATMAN
Tachyarrhythmias management
Unstable
- 3 shocks
- Amiodarone
Narrow complex
- AF
- Flutter –> Rate control
- SVT –> Vasovasal / Adenosine
Broad
- VT –> Amiodarone
Drawbacks of mechanical heart valves
Thrombus formation
IE
Haemolysis
Lifelong anticoagulation - warfarin
Causes of an irregualrly irregualr pulse
AF
Ventricualr ectopics