Cardiovascular Conditions Flashcards
What are the three main conditions that comprise Acute Coronary Syndrome?
Unstable Angina
NSTEMI
STEMI
What are the main differences between stable and unstable angina?
In STABLE angina, pain is experienced on exertion with relief from GTN
In UNSTABLE angina, pain is experienced at rest and is not necessarily relieved by nitrate use.
Who is most likely to be affected by angina?
Those over the age of 55- prevalence increases with age
What are the main causes of angina?
CORONARY ARTERY DISEASE
VALVULAR DISEASE- e.g. aortic stenosis, hypertrophic obstructive cardiomyopathy, hypertensive disease)
What are the main risk factors of angina?
NON-MODIFIABLE- ethnicity (south asian origin), gender (male), family history
MODIFIABLE- smoking, obesity, lack of exercise
PMH- diabetes, hypertension, hyperlipidaemia, metabollic syndrome.
What is the main presentation of angina?
CONSRICTING CHEST PAIN- found in the front of the chest, in the neck, shoulders, jaw or arms.
Precipitated by physical exertion (stable)
Relieved by rest or GTN (stable)
What are the clinical signs associated with angina?
On ECG, pathological Q waves, st- segment and t wave abnormalities.
What are some of the differentials for angina?
MI Unstable angina Dissecting thoracic aneurysm Pericardial pain Acute congestive heart failure Arrhythmias Other causes: GI, MSK, Psych., Respiratory
What investigations would be most appropriate for suspected angina?
IMAGING: ECG, ECHO
BLOODS: FBC, LFTS, TFTS, glucose, troponin (<14ng/l is normal), cardiac enzymes.
What is the best mode of treatment for stable angina?
GTN spray Rest Beta-Blockers- Bisoprolol Calcium Channel Blockers- Amlodipine Lifestyle changes for the modifiable risk factors as diet, smoking cessation.
What is the immediate treatment in unstable angina?
Use of aspirin and fondaparinux.
In the event of first line treatment not working for angina, what is the next step (following nitrates and aspirin etc)?
Coronary revascularization- PCI, coronary bypass.
Who is most likely to be affected by atrial fibrilation?
Those with increasing age tend to experience AF
What is AF?
It is an arrhythmia wherein there is an irregularly irregular beating of the heart. It leads to inefficient ventricular filling and therefore reduced cardiac output.
What are the main causes of atrial fibriliation?
Valvular heart disease
Ischaemic heart disease
Hypertension
Hyperthyroidism
What are the main risk factors associated with atrial fibrilation?
NON-MODIFIABLE- gender (male), family history
MODIFIABLE- obesity, caffeine intake, excessive alcohol intake, smoking
PMH- diabetes, ckd, valvular conditions (rheumatic heart disease, sick sinus syndrome, Wolff-Parkinson-White syndrome).
What are the main symptoms associated with atrial fibrilation?
Dyspnoea Palpitations Syncope Chest discomfort Stroke/TIA
Clinical signs of atrial fibrilation?
ABSENT P WAVES
irregularly irregular waves.
Some of the differential diagnoses for atrial fibrilation include:
Atrial flutter, atrial extrasystoles, ventricular ectopic beats, sinus tachycardia, SVT, multifocal atrial tachycardia, Wolff-Parkinson-Syndrome
Which investigations are appropriate for suspected atrial fibrilation?
IMAGING: ECG, ECHO
BLOODS: FBC, LFTs, TFTs, glucose, cardiac enzymes.
What are the treatment options for atrial fibrilation?
RATE + RHYTHM CONTROL- standard beta-blocker (bisoprolol/atenolol) and a calcium channel blocker- amlodipine)
cardioversion/ablation
THROMBOPHYLAXIS
ANTICOAGULATION
What are the complications associated with atrial fibrilation?
Increased risk of stroke
Acute heart failure
What constitutes heart failure?
It is the inability of the heart to pump efficiently. This means that there can either be systolic dysfunction (affecting cardiac output), or diastolic dysfunction (improper filling of the atria or ventricles).
Who is more likely to be affected by congestive heart failure?
It is frequent in MEN and in the ELDERLY
What are some of the causes of heart failure?
Coronary heart disease
Hypertension
Valvular heart disease
Cardiomyopathies
Arrhythmias
IATROGENIC- beta-blockers, calcium antagonists, anti-arrhytmics, cytotoxics
TOXINS- alcohol, cocaine, mecury cobalt, arsenic
ENDOCRINE- diabetes, hyper/hypothyroidism, Cushing’s, phaeochromocytoma, excessive growth hormone, adrenal insufficiency
NUTRITIONAL- deficiencies of thiamine, selenium, carnitine, obesity, cachexia
INFILTRATIVE- sarcoidosis, amyloidosis, haemochromatosis, Löffler’s eosinophilia, connective tissue disease)
INFECTIVE- Chaga’s disease, HIV, beriberi