Cardiology Flashcards
Give 2 things atherosclerotic plaques cause
Hypertension
Angina
ACS (MI/stroke)
Give 2 modifiable risk factors for CVD
Smoking Exercise Diet Alcohol Sleep Stress Obesity
Give 2 non-modifiable risk factors for CVD
Age
FH
Male
What is primary prevention?
Interventions before any CVD
What is secondary prevention?
Interventions when patients have CVD
What score do you use in the primary prevention of CVD?
QRISK3
What does the QRISK3 calculate?
Percentage risk of patient having a stroke/MI in the next 10 years
What do you do if the QRISK3 is >10%?
Statin (atorvastatin 20mg)
What is the secondary prevention of CVD?
4As Aspirin (+clopidogrel) Atorvastatin 80mg Atenolol (/other BB) ACEi
What is the gold standard investigation for angina?
CT coronary angiography
Immediate symptomatic relief in angina
GTN spray
Long term symptomatic relief in angina
BB or CCB
Secondary prevention of angina
Aspirin
Atorvastatin
ACEi
BB
Surgical management of angina
PCI or CABG
Give 2 parts of the heart the RCA supplies
RA
RV
Inferior LV
Posterior septum
Give 2 parts of the heart the circumflex artery supplies
LA
Posterior LV
Give 2 parts of the heart the LAD supplies
Anterior LV
Anterior septum
ECG in STEMI
ST elevation
New LBBB
ECG in NSTEMI
ST depression
T wave inversion
Pathological Q waves
ECG in unstable angina
No pathological changes
Symptoms of ACS (MI/unstable angina)
Central constricting chest pain N&V Sweating Feeling of impending doom SOB Palpitations Pain radiating to jaw/arms
LCA ECG leads
I, aVL, V3-6
LAD ECG leads
V1-4
Circumflex ECG leads
I, aVL, V5-6
RCA ECG leads
II, III, aVF
What does a rise in troponin mean?
Myocardial ischaemia
What are troponins?
Proteins found in cardiac muscle
What is the downside of using troponins?
They are non-specific
Give 2 non-ACS causes for raised troponins
CRF Sepsis Myocarditis Aortic dissection PE
What is the treatment for an acute STEMI?
PCI <2 hours
Thrombolysis (alteplase) <6 hours
What is the treatment for an acute NSTEMI?
BATMAN BB Aspirin 300mg Ticagrelor 180mg (/clopidogrel 300mg) Morphine Anticoagulant (LMWH) Nitrates
What score gives a 6 month risk of death or repeat MI after having an NSTEMI?
GRACE score
What is Dressler’s syndrome?
2-3 weeks after MI there is a localised immune response and pericarditis happens
Pleuritic chest pain, low grade fever, pericardial rub
ECG, echo, inflammatory markers
NSAIDs +/- steroids
Secondary prevention of ACS
6As Aspirin 75mg Antiplatelet (clopidogrel) Atorvastatin 80mg ACEi Atenolol Aldosterone antagonist (clinical heart failure)
What does LVF cause?
Pulmonary oedema
Give 2 triggers for acute LVF
Iatrogenic (IV fluids)
Sepsis
MI
Arrhythmias
Symptoms of acute LVF
SOB, worse on lying flat
Unwell
Cough (frothy white/pink sputum)
What type of respiratory failure does acute LVF cause?
Type 1
Low O2, normal CO2
Signs of acute LVF
Increased RR Reduced O2 Tachycardia 3rd heart sound Bilateral basal crackles on auscultation Hypotension Raised JVP or peripheral oedema if also RVF
What blood test do you do for suspected Lacute VF?
BNP
What is BNP?
B-type natriuretic peptide
Hormone that is released from the ventricles when the myocardium is overstretched
Its action is to relax the smooth muscle in blood vessels
What is the downside of using BNP?
Non-specific
Give 2 non-HF causes of raised BNP
Tachycardia Sepsis PE Renal impairment COPD
What does an echo look for in acute LVF?
Ejection fraction
What is a normal ejection fraction?
> 50%
Give 2 CXR findings in acute LVF
Cardiomegaly
Upper lobe venous diversion
Possible pleural effusions, Kerley lines
What is the management for acute LVF?
Sit upright
Oxygen
Diuretics (IV furosemide 40mg)
Monitor fluid balance
What are the 2 types of chronic heart failure?
Impaired LV contraction (systolic)
Impaired LV relaxation (diastolic)
Give 3 symptoms of chronic heart failure
SOBOE Cough (frothy pink/white sputum) Orthopnoea PND Peripheral oedema
Give 2 investigations for chronic heart failure
Presentation
NT-proBNP
Echo
ECG
Give 2 causes of chronic heart failure
IHD
Valvular disease
HTN
Arrhythmias
What is the medical management of chronic heart failure?
ACEi
BB
+/- aldosterone antagonist
Loop diuretics
What is cor pulmonale?
RHF caused by respiratory disease (pulmonary hypertension)
Give 2 causes of cor pulmonale
COPD PE ILD CF Primary pulmonary HTN
Give 2 signs of cor pulmonale
Hypoxia Cyanosis Raised JVP Peripheral oedema 3rd HS Murmurs Hepatomegaly SOBOE
What is the management of cor pulmonale?
Treat symptoms and cause
Give 2 causes of HTN
Renal disease
Obesity
Pregnancy induced/pre-eclampsia
Endocrine
Give 2 complications of HTN
IHD CVA Retinopathy Nephropathy HF
What BP diagnoses HTN?
> 140/90 in clinic or >135/85 at home
What are the BP readings for stage 2 and stage 3 HTN?
2: >160/100 clinic >150/95 home
3: >180/120 clinic
What are the 5 main medications for HTN?
ACEi BB CCB Thiazide like diuretic ARB
Talk through the steps of HTN management
1: If <55 and non-black use A, if >55 or black use C
2: A + C or A + D or C + D (ARB > A if black)
3: A + C + D
4: A + C + D + additional
Give 2 additional medications for uncontrolled HTN
Potassium sparing diuretic
Alpha blocker
Beta blocker
Give an example of an ACE inhibitor
Ramipril
Give an example of a beta blocker
Bisoprolol
Give an example of a CCB
Amlodipine
Give an example of a thiazide like diuretic
Indapamide
Give an example of an ARB
Candesartan
Give an example of a potassium sparing diuretic
Spironolactone
Give an example of an alpha blocker
Doxazosin
What can spironolactone increase the risk of?
Hyperkalaemia
Give 2 symptoms of AF
Palpitations
SOB
Syncope
Give 2 features of AF on ECG
Absent P waves
Narrow QRS
Tachycardia
Irregularly irregular
Give 2 causes of AF
Sepsis Mitral valve pathology Ischaemic heart disease Thyrotoxicosis HTN
What is the first line treatment for AF?
Rate control with a beta blocker
Describe pharmacological cardioversion
Anticoagulate for >3 weeks prior
Flecanide/amiodarone
Describe electrical cardioverson
Anticoagulate for >3 weeks prior
Cardiac defibrillator
Give 2 medications used in long term rhythm control in AF
BB
Dronedarone
Amiodarone
What is paroxysmal AF and what is the management?
Infrequent episodes of AF
Flecanide
Why anticoagulant in AF?
Risk of stroke due to stagnating blood in atrium
How does warfarin work?
Vitamin K antagonist
Prolongs PT
How do we measure warfarin?
INR (PT of patient compared to normal adult, 1=normal)
What INR do we aim for in AF?
2-3
What can impact warfarin?
Cytochrome P450
Vitamin K foods
Give an example of a DOAC
Apixaban
Rivaroxaban
What is a disadvantage of a DOAC?
Cannot be reversed
What is an advantage of a DOAC?
Shorter half life
No monitoring
What tool is used for assessing whether a patient with AF needs anticoagulation?
CHA2DS2-VASc (score of >1=give anticoagulation)
Describe CHA2DS2-VASc
Congestive HF HTN Age >75 Diabetes Stroke/TIA Vascular disease Age >65 Sex (F)
What tool is used for assessing a patient’s risk of major bleeding whilst on anticoagulation?
HAS-BLED