cardio 2 Flashcards
adult with hypertension, weak or absent femoral pulses, heart failure, left ventricular hypertrophy
coarctation of the aorta
important differential for young adults with poorly controlled hypertension
coarctation of the aorta
hallmark of coarctation of the aorta
narrowing of arteries
thickened arteries
atherosclerosis
sudden, intense chest or back pain
aortic aneurysm
rate greater than 100m bpm and QRS complex less than 120ms then
supraventricular tachycardia
management of supraventricular tachycardia if stable- vagal manoeuvres(carotid sinus massage, valsalva maneouvre)
if unstable- DC cardioversion
if physical maneouvres not successful then may try adenosine but this is contrainidicated in patients with asthma
if had raised troponin T level then you should
REPEAT IT if value remains roughly the same then can rule out MI but if value is further increased or reduced then MI
elevated serum cardiac enzymes indicate what has occured
MI
ST elevation in a few leads are typical of — due to occlusion of a coronary artery
Transmural infarction
— angina is not associated with a rise in cardiac enzymes or ST elevation
unstable or stable
subendocardial infarction affects
most ECG leads
treatment for AVNRT, a form of supraventricular tachycardia
Vagal manoeuvres then adenosine
arises from the ascending aorta, just superior to the left cusp of the aortic valve
Left coronary artery
Two main arteries arising from the ascending aorta, just superior to the cusps of the aortic valve
Left and right coronary artery
coronary sinus opens into the
right atrium
— intimately related to the coronary sulcus on the anterior surface of the heart
Right coronary artery
in 90% of patients the AV node artery arises from the right coronary artery
what supplies the AV node of the heart
Anterior interventricular artery, also known as LAD
normal pr interval length
0.12-0.2 ms
– can cause large JVP V waves
Tricuspid regurg
- is a cause of cannon waves
ventricular tachycardia
– results in a loss of the JVP a wave
atrial fibrillation
what valve is in the left sternal border in the 4th intercostal space
tricuspid
treatment of chronic heart failure secondary to left ventricular systolic dysfunction
ACEi- reduced bp, increasing the ability of the heart to pump blood, increasing cardiac output
Beta blocker - relaxes the heart
Loop diuretic- relieve symptoms associated with overload
high BNP and anaemic indicates
heart failure
chronic heart failure symptoms
inceasing SOB, peripheral oedema, palpitations and cough
post MI with fever, elevated ESR , 2-6 weeks after
Dresslers sydnrome
complication 3-14 days post MI
Myomalacia cordis- softening of dead muscles
visual loss in a hypertensive patient can be due to
hypertensive retinopathy
common causes of hypertensive retinopathy
renal artery stenosis, aldosterone secreting adrenal adenoma
Most appropriate investigation for hypertensive patient with vision loss
Aldostrone to renin ratio- then CT or MRI is done
Troponin is found in what 2 muscles
cardiac and skeletal
Ecg changes in Non st eleveation MI
T wave inversion , high troponin level
deceleration injury (car crash) and high troponin
Myocardial contusion
raised serum troponin in suspected PE indicates
right ventricular strain
chest pain relieved sitting up, heart sounds scratchy, high troponin, bucket shaped ST elevation
Myopericarditis
first line treatment for myopericarditis
NSAIDS and if significant pericardial effusion may require pericardiocentesis
valve best heard at the apex beat
mitral ( 5th intercostal, mid clavicular)
what is diagnostic of aortic coarctation (hypertension in the upper body giving symptoms liek headache, dizziness and hypotension in lower body - claudication, recurrent pain due to ischaemia of leg muscles)
enlarged intercostal arteries produce notching of the inferior margins of the ribs
Infantile form of — is associated with patent ductus arteriosus, whereas the adult form is not)
aortic coarctation
endocarditis due to endothelial injuries promoting hypercoaguable states -SLE, antiphospholipid syndrome, malignancy, present with thrombotic events
Libman-sacks endocarditis
It is a thrombotic endocarditis
sydenham’s cholera is a manifestation of
rheumatic fever
beriberi is a form of thiamine deficiency and relates to consumption of milled – as well as alcohol
rice
elevated JVP, large V waves, pan systolic murmur at the left sternal edge, pulsatile hepatomegaly and left parasternal heave
tricuspid regurg
steady burning chest pain, post MI, friction rub is heard and heart sounds are muffled
Dressler sydrome which is a autoimmune phenomenon results in fibrinous pericarditis
patients with left ventricular failure often suffer from
orthopnoea- dyspnea caused by lying flat
paraoxysmal nocturnal dyspnoea- sudden attacks of dyspnoea and coughing at night
if sleeps in an armchair then indicates suffers from orthopneoa
Normal LVEF
left ventricular ejection fraction
between 50% and 70%
two important signs of constrictive pericarditis
y descent in the JVP
pericardial knock heard in early diastole
triad for cardiac tamponade
hypotension, raised JVP, muffled heart sounds
cardiac surgery can cause cardiac tamponade a few days later as
post operative bleeding
weight loss, anxiety, greasy skin, tremor, tachycardia
thyrotoxicosis
irrergularly irregular
ATrial fib
blood supply to the apex is by
anterior interventricular artery (LAD)
characterised by signs and symptoms of acute fibrinous pericarditis( pericardial friction rub, chest pain relieved by leaning forward, diffuse ST elevation) in additon to fever , pleuritic chest pain, leukocytosis
Dresslers sydrome
acute fibrinous pericarditis manifests how long after MI
2-5 days
On ECG, every 4th heart beat there is a non conducted P wave (P wave with no QRS complex)
Second degree heart block - Mobitz type II
treatment for symptomatic Type II heart block
permanent pacing
progressive lengthening of the PR interval, over several complexes before a non conducted P wave would occur
second degree heart block - mobitz type I
central chest pain, tachycardia, excessive sweating, admits to recently taking cocaine
Coronary artery vasospasm
tearing pain radiating to back
thoracic aortic dissection
definitve management of thoracic aortic dissection
open or endovascular surgical repair
management to reduce stress on aortic wall include blood pressure reduction with —- and sympathetic tone reduction with —
labetalol
morphine
– syndrome predisposes to recurrent thromboses
antiphospholipid
chest pain exacerbated by movement and anterior chest wall is tender to palpation
Costochondritis