For IPE Flashcards
When are ventricular ectopic felt most and why?
Feels like a missed beat when sitting or lying down
They are terminated when the SAN fires more quickly than normal
What are the cardiac red flags for syncope episodes?
Abnormal ECG HF New/unexplained murmur or SOB >65 years with TLOC without prodrome structural heart problems FH of sudden cardiac death <40y/o TLOC during exercise
What are the modifiable risk factors for cardiovascular disease?
Smoking
Diabetes
Hypertension
Hyperlipidaemia
Explain the two normal heart sounds
S1- lub - closure of the mitral and tricuspid valves
S2- dub- closure of the aortic and pulmonary valves
What is the 3rd heart sound and when is it heard?
Blood rushing into the ventricles during rapid filling phase of early diastole
Normal in children and adults <30 y/o
Causes - HF, MI, hypertension and cardiomyopathy
What is the 4th heart sound and when is it heard?
Atrial contraction into a non compliant ventricle
Causes - HF, MI, hypertension and cardiomyopathy
What types of echos are there to visualize the heart? Which is preferred?
Transthoracic and transoesophageal
Transoesophgeal gives better pictures
What can a ECHO of the heart be used for?
Global LV function, estimating right heart haemodynamic, valve disease, congenital heart disease, pericarditis, pericardial effusion and HCOM
What test is indicated in all those with stable chest pain?
Ct angiogram of the coronary arteries
Explain the NYHA of cardiac failure
1 - no limitation of physical activity- ordinary activity doesn’t cause undue fatigue
2- Slight limitation of physical acitivty- ordinary activity results in fatigue, SOB or palpitations
3- marked limitations of physical acitivity - comfortable at rest and less than ordinary activity causes fatigue, SOB and palpitations
4 - symptoms of heart failure at rest
Explain the CHADVASC score
Probability of thromboembolic events in patients with AF
- CCF
- Hypertension (even if treated)
- Age
> 65-74 = 1
> Greater than 75 =2 - DM
- Stroke or TIA = 2
- PVD
- Female
Anticoagulate males with 1 and females with 2
What score is used against CHADVASC?
HAS BLED - used to assess the risk of a major bleed in someone with AF that is anticoagulated
What classification is used for CCF?
Framingham classification
What are the major components to the framingham classification?
PND Raised JVP Hepatojugular reflex Crackles at lung bases Cardiomegaly on CXR Acute pulmonary oedema Gallop rhythm Increased CVP Weight loss of greater than 4.5kg in 5 days due to diuretics
What are the minor components of the framingham classification?
Bilateral ankle oedema Nocturnal cough Dyspnoea on normal exertion hepatosplenomegaly pleural effusion decreased vital capacity tachycardia
What criteria needs to be met with the framingham classification to diagnose CCF?
2 Major or
1 major and 2 minor
What is the difference between hypertensive urgency and hypertensive emergency?
Urgency - severely elevated BP with no end organ damage
Emergency - severely elevated BP with end organ damage
What should be done first if a patient has high blood pressure in consultation?
ABPM
What is the first line treatment for hypertension?
<55 or DM - ACEi
>55y/o or afrocarribean - CCB
What are some secondary causes for hypertension?
Renal causes - GN, RAS, pyleonephritis and polycystic kidneys
Endocrine causes - phaechromocytoma, cushing disease, liddle disease, acromegaly and conns syndrome
Drug causes - steriods, COCP, NSAIDs and leflunomide
Other causes - pregnancy and coarctation of the aorta
What testing should be under taken if a secondary cause is suspected?
MRA to look at the kidneys and adrenal glands
Renin aldosterone ratio to look for Conns
Urine metanephrines or serum catecholamines
What organs are most severely affected by hypertension?
Eyes Kidneys Heart Brain Lungs ( malignant hypertension can present with flash pulmonary oedema)
What are the stages of hypertensive retinopathy?
Tortous A with copper wiring
Av nipping
Flame haemorhages with cotton wool spots
Papilloedema
What anti hypertensive drug is used in pregnancy?
Labetalol
Give some causes of pericarditis
Coksackie Virus TB Autoimmune conditions - RA, SLE Radiotherapy Kidney failure - uraemia Hypothyroidism Post MI - Dressler's syndrome
Explain the pathophysiology behind pericarditis
Pericardium is acutely inflammed and there is an infilitrate of polymorphonuclear leukocytes and pericardial revascularisation
What are the potiental sequele of pericarditis
Constrictive pericarditis - exudate and adhesions encase the heart within non expansile pericardium
Pericardial effusion which may lead to tamponade
What are the symptoms of pericarditis?
Central chest pain- stabbing pain that is worse on inspiration, relieved by sitting up SOB on lying flat Cough Palpitations Fever
What are the signs of pericarditis?
Tachycardia
Increased temperature
If constrictive
- RHF - increased JVP, severe ascites, hepatomegaly, kusssmaul sign, hypotension and pulsus paradox
What are the signs of tamponade?
Increased JVP
Reduced BP
Muffled heart sounds
Forms Becks triad
What are the ECG changes seen in pericarditis?
Stage 1 - ST segement elevation with PR depression
Stage 2 - ST segment back to baseline with W wave flattening
Stage 3 - T wave inversion - may remain in uraemia, Tb or neoplasm
Stage 4- back to normal
Apart from an ECG what investigations and imaging should be done in someone with suspected pericarditis and why?
Troponin- would be raised
U&Es- check kidney function as failure could cause or kidneys could be damaged if low output
CRP and ESR- would see raised inflammatory markers
ECHO - look for signs of effusion
special tests - virology screen and antibodies if suspecting a autoimmune cause.
What is the management of pericarditis?
NSAIDs (+PPI)
Drain any tamponade
Abx for infective causes
Explain the process of draining a tamponade
Pericardiocentesis
- usually under USS guidance - needle is inserted in 5th ICS at left sternal edge at the cardiac notch of the left lung
- while draining the fluid make sure patient is on ECG to look for signs of cardiac breach
Fluid should be sent to the lab for all the usual things and a drain can be left in
What is infective endocarditis and what is the pathophysiology behind it?
Inflammation of the inner walls of the heart including the valves
Pathophysiology- endothelial damage leads to the deposition of platelets and fibrin. When there is a bacteriaemia eg from brushing teeth the bacteria adhere and colonise on the plaque leading to a biofilm . The fibrin forms over this bacteria and the bacteria are protected against host defences and treatment.
What are the risk factors for IE?
patients with valve replacements
patients with congenital heart disease
patients with poor dental hygiene
IVDU and tattoos with non sterile needles
What are the symptoms of IE?
pleuritic chest pain which radiates to the back
fever and night sweats
fatigue and weight loss
embolus
What are the signs of IE?
New murmur or changes in pre existing murmur
splenomegaly
clubbing, splinter haemorhages, oslers nodes and jane way lesions
Roth spots on fundoscopy
Petechiae
What are the common organisms in IE?
Staph aureus is the most common
Others
- Strep Viridans
- Staph epidermis
- Enterococci (consider some sort of bowel pathology)
- pseudomonas aureginosa
What investigations would be done in a patient with suspected IE?
Blood tests - raised inflammatory markers, normocytic anaemia, check LFTs/ U&Es for signs of end organ damage as a result of sepsis
ECG- rule out pericarditis
CXR- rule out any lung pathology
ECHO - diagnostic to look at valves and infective vegetation
Blood cultures- 3 lots from three different places at 3 different times - helps determine treatment
What are the major features of Duke’s criteria?
Positive blood cultures - typical organism in 2 cultures or persistently positive cultures
Evidence that the endocardium is involved - ECHO showing vegetation, abscess or dehisence of the prosthetic valve
new murmur
What are the minor features of Duke’s criteria?
Predisposing features - cardiac lesion or IVDU
Fever >38 degrees
Vascular/ immunological signs
positive blood cultures that doesnt meet the major criteria
positive ECHO that doesnt meet the major criteria
What is needed in the Duke’s criteria to make a diagnosis?
2 major
1 major 3 minor
all 5 minor