Cadiac TCD Notes Flashcards
Which murmurs are present in systole
‘Flow murmurs’
- Aortic/ pulmonary stenosis
- mitral/tricuspid regurgitation
- Ventricular septal defect
- Aortic outflow tract obstruction
Which murmurs occur in diastole
- Aortic/ pulmonary regurgitation
- Mitral/ Tricuspid Stenosis
Which murmurs are continuous
Patent ductus arteriosis (only happens in children)
What are the gradings of murmurs
Grade one: barely audible
Grade two: soft, but easily heard
Grade three: loud
Grade four: associated with a thrill
What are the here basic shapes of murmurs?
Crescendo-decrescendo
Decrescendo (often in diastole)
Uniform
When does Aortic regurgitation happens?
Diastole
When does mitral regurgitation happen?
Holosytolic
When does mitral stenosis happen?
Holodiastolic
Three most common causes of diabetes
Ischaemic
Hypertension
Diabetes (diabetic cardiomyopathy or vis CAD)
Name for when breathlessness causes a patient to wake up suddenly in the middle of the night
Paroxysmal nocturnal dyspnoea
Scale to use to describe heart failure gradings
New York Heart Association
Four classes
No symptoms and no limitation in normal activity all the way to severe symptoms at rest
Signs of heart failure
Pulmonary oedema or pleural effusion Raised JVP Pitting oedema Ascites Tachycardia S3 gallop
What sort of diagnosis is heart failure?
A clinical diagnosis
- symptoms
- signs
- Objective evidence of structural or functional cardiac abnormalities at rest
ECHO ALONE DOES NOT DIAGNOSE HEART FAILURE
Is heart failure a diagnosis or a syndrome?
Syndrome not a diagnosis. It is always se on dart or the cause of something
Investigations for heart failure
Bloods - anaemia and b12 can be a cause U+E TFT as hyper and hypo can be a cause Glucose for diabetes
BNP
- normal levels rule out heart failure
- provides prognostic information
- RAISED IS NOT SPESIFIC
CXR for pulmonary effusions and oedema
Uses of Echocardiogram in HF
Provides info on ejection fraction - normal is 60%
Helps look at ateology
Valves
Chamber size - dialated atrium
HF with preserved LV function
EF >45%
HF with LV systolic dysfunction
EF <45%
AF ECG
No P waves
Irregularly irregular
What does LVH on ECG suggest?
Hypertension, aortic stenosis, HOCM
Treatment of heart failure with impaired systolic function?
Diuretics ACE inhibitors B-Blockers Aldosterone receptor antagonists Devices: CRT/ ICD
Treatment of heart failure with preserved LV function
Diuretics
Treatment of co-morbidities
Three ways that ACE-I help HF
Inhibit LVH and remodelling
Inhibit vasoconstriction
Decrease water and salt retention
Which BBlockers is not licensed for heart failure?
Atenolol
What does ICD stand for?
Implantable cardia defibrillators, which treats sudden cardiac death
Why are LFTs important when investigating heart failure?
Pulmonary congestion can cause associated liver congestion
What is atrial myxoma?
A tumour in the atrium
What do you hear in mitral stenosis?
Mid diastolic rumbling murmur
Loudest at apex with bell of stethoscope
Loudest with patient rolled onto left
Long rumbling murmur in kids
Patient foramen ovale
What type of calcium channels are in the heart?
L type calcium channels
What is early after depolarisation or EAD?
Abnormal depolarisation and following action potentials after normal repolarisation has happened
Causes long QT syndrome
What are the signs of infective endocarditis?
- Petechiae
- Splinter haemorrhages
- Oslr nodes
- Janeway lesions
- Roth spots
How do you diagnose infective endocarditis?
Duke Criteria
Two major or one major plus three minor or five minor
When is BCNEI most likely?
After antibiotics
Chain of clinical investigations following symptoms of AF?
Feel pulse, if irregular:
Do an ECG, if AF:
do TTecho or TOecho
What is the clinical scoring system for stroke risk?
CHA2DS2-VASC
What is the clinical scoring system for bleeding risk?
HAS-BLED
When do you not give anti stroke medication in AF?
If under 65 and no risk factors of CHA2DS2-VASC
What do you do if AF and CHA2DS2-VASC great than or equal to 2?
Give anti coagulation medication e.g apixaban, dabigatran, wafrin, rivaroxiban
If high stroke risk and AF but anti coagulation isn’t possible what should you do?
Consider left atrial appendage
What do you give for suitable patients in New or reversable AF with no HF?
Give rate control drugs. Beta blockers or calcium channel blockers
If paroxysmal or persistant AF and risk factors for stroke what do you give?
Dronedarone
What value of BNP rules out heart failure?
less than 100ng/L