Cardiology 3 Flashcards
When treating a diabetic patient with hypertension, which combinations of anti-hypertensives should be avoided if possible?
thiazides and BB as can cause insulin resistance
Thiazides can cause which electrolyte abnormalities (3)
Adverse effects (3)
low K and Na
High calcium
gout, impaired glucose intolerance, impotence
Heart failure with reduced ejection fraction is defined as an ejection fraction below?
40%
Which PPI interacts with clopi?
Clopi MOA
Omeprazole - makes it less effective
Anti-platelet
Bioprosthetic versus mechanical valves
Anticoagulation for prosthetic
How is each option chosen?
Anticoagulation for mechanical aortic and mitral
Prosthetic - warfarin for first three months, otherwise aspirin long term
Given in >65yo aortic or >70 for mitral
Mechanical - warfarin aortic 3, mitral 3.5
Heart block
1st degree
Mobitz type 1
Mobitz type 2
Third degree
1st degree - prolonged PR >0.2
Mobitz type 1 increasingly prolonged PR then a dropped QRS
Mobitz type 2 PR interval is constant but the P wave is often not followed by a QRS complex
Third degree no association between P and QRS
Major bleeding
Minor bleeding + INR >8
No bleeding INR >8
Minor bleeding INR 5-8
No bleeding INR 5-8
Stop warfarin, IV vit K 5mg
Prothrombin complex concentrate - if not available then FFP*
Stop warfarin
Give IV vit K 1-3mg
Repeat dose of IV vit K if INR still too high after 24 hrs
Restart warfarin when INR < 5.0
Stop warfarin
Give PO vit K 1-5mg by mouth
Repeat dose of vitamin K if INR still too high after 24hrs Restart when INR < 5.0
Stop warfarin
Give IV vit K 1-3mg
Restart when INR < 5.0
Withhold 1 or 2 doses of warfarin
Reduce subsequent maintenance dose
What are the below scoring systems used for?
ABCD2
DAS28
Child Pugh
SCOFF
Epworth
IPSS
Waterlow
FRAX
Ranson
MUST
TIA
RA severity
Liver cirrhosis
Eating disorders
Sleep apnoea
Prostate symptoms score
Pressure sores
10 year risk of developing osteoporotic fracture
Acute pancreatitis
Malnutrition
Brugada syndrome
AD/AR
Common in which demographic?
Mutation in which gene?
ECG changes (3)
Ix of choice
Mx
Autosomal dominant
Asians
SCN5A gene
Convex ST segment elevation
Negative T waves V1-V3
RBB
Administration of flecainide or ajmaline - more apparent ECG changes following this
Mx ICD
What is Buerger’s diease?
Strongly associated with?
Features (5)
Small to medium vessel vasculitis
Smoking
Extremity ischaemia
Intermittent claudication
Ischaemic ulcers
Superficial thrombophlebitis
Raynaud’s phenomenon
Beck’s triad (3)
Found in which condition?
hypotension
raised JVP
muffled heart sounds
cardiac tamponade
Cardiac tamponade
ECG findings
Mx
ECG: electrical alternans
Mx urgent pericardiocentesis
When can one use dabigatran?
Non valvular AF with at least one of:
prev stroke/ TIA/ systemic embolism
LVEF <40% or NYHA class 2 or above
75yo >=
65yo >= with DM, CAD, HTN
VTE prophylaxis post knee or hip replacement surgery
Normal variants ECG in an athlete (4)
sinus bradycardia
junctional rhythm
first degree heart block
Mobitz type 1 (Wenckebach phenomenon)
multiple red/yellow vesicles on the extensor surfaces
Eruptive xanthoma