IHD, HF and AF - prework Flashcards

1
Q

Angina - aetiology/RF

A
  • Atherosclerosis
  • Coronary artery vasospasm
  • Microvascular dysfunction
  • Extracoronary factors - aortic stenosis, hypertrophic cardiomyopathy, significant anaemia
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2
Q

Symptoms of angina

A
  • Chest pain - left sided, radiate to left arm/neck, may not be present in elderly/diabetics
  • Dyspnoea - equivalent angina
  • Nausea
  • Lightheadedness
  • Fatigue
  • Precipitated by physical exertion
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3
Q

Investigations of angina

A
  • ECG
  • FBC, U&E, LFTs, Lipid profile, TFTs, HbA1C
    1. CT coronary angiogram
    1. Non-invasive functional imaging - looking for myocardial ischaemia (eg stress echo or myocardial perfusion scan)
    1. Invasive coronary angiography
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4
Q

Advice for angina

A
  • Healthy diet
  • Exercise - within limit of symptoms
  • Stop smoking
  • Optimise treatment of other co-morbidities
  • Healthy weight
  • Limit alcohol
  • Get DVLA advice if job involves driving
  • Can have GTN before sex if this precipitates it
  • Treatments of ED are generally contraindicated
  • Flight advice - no restriction if symptoms only occur with significant activity
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5
Q

Medication for angina

A
  • Aspirin and statin for all patients
  • Sublingual glyceryl trinitrate to abort angina attacks
  • Beta blocker or CCB 1st line (if CCB monotherapy use diltiazem or verapamil) - if symptoms remain, titrate to max dose
  • If symptomatic on monotherapy add alternative (eg beta blocker + CCB (BUT NOT BB AND VERAPAMIL)
  • 3rd line - long acting nitrate, ivabradine, nicorandil or ranolazine - only add when awaiting assessment for PCI or CABG or if cannot tolerate BB or CCB add on to monotherapy
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6
Q

Nitrate tolerance in angina?

A
  • Many patients who take develop tolerance and experience reduced efficacy
  • If tolerance develops, take second dose of isosorbide mononitrate after 8hrs and not 12 hrs - allows levels to fall low for extra 4 hrs
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7
Q

Monitoring and f/u of angina

A
  • Every 6monts-1yr depending on severity/control
  • Assess CVD risk
  • Check HR and BP and for signs of HF
  • Review medication
  • Check for ongoing symptoms
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8
Q

ACS RF

A
  • Increasing age
  • Male
  • FH
  • Smoking, diabetes, HTN, high cholesterol, obesity
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9
Q

Atypical symptoms of ACS

A
  • Epigastric pain
  • Fatigue
  • Syncope/presyncope
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10
Q

Signs of ACS

A
  • Hypotensive/hypertension
  • Sweating
  • Tachy/bradycardia
  • Tachypnoea
  • Hypoxia
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11
Q

Investigations ACS

A
  • ECG
  • Troponin
  • Baseline bloods - FBC, U&E, LFTs, lipids and glucose
  • CXR - pulmonary oedema/other causes of chest pain
  • Echo - once stable to assess LV function
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12
Q

Medication for ACS - ALL

A
  • Aspirin 300mg
  • O2 if sats <94%
  • Morphine if severe pain
  • Nitrates - sublingual or IV, given if ongoing chest pain/hypertension, caution if hypotensive
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13
Q

Management ACS - STEMI specific

A
  • All of ‘all’ section
  • PCI if presentation within 12hrs of symptom onset and can be delivered within 120 mins thromboylysis can be given (if after 12 hrs, still consider if ongoing ischaemia)
  • Dual antiplatelet therapy if PCI - prasugrel if not on any other anticoag, clopidogrel if are
  • PCI - radial access need UFH + bailout glycoprotein IIb/IIIa inhibitor
  • PCI - femoral access Bivalirudin with bailout GPI
  • OR thrombolysis - usually with LMWH/fondaparinux
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14
Q

Management of ACS - NSTEMI/unstable angina specific

A
  • All from ‘all’ criteria
  • Fondaparinux if not high risk of bleeding and not having angio immediately
  • If immediate angi or Crt >265 umol/L then give UFH
  • Calculate GRACE score

Give PCI in:
* Immediately if unstable eg hypotnesive
* Within 72hrs if GRACE score more than 3%
* Consider in all patients if ischaemia experienced after admission

PCI drugs for NSTEMI/UA:
* UFH (regardless if given fondaparinux)
* Dual antiplatelet - prasugrel/ticagrelor if not taking another anticoag, clopidogrel if are

If no PCI:
* DAPT - ticagrelor if not high bleed risk, clopidogrel if are

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15
Q

Post ACS medications

A
  • Aspirin 75mg, ACEi, aldosterone antagonist for those with HF
  • Beta blocker
  • Cardiac rehab
  • Dual antiplatelet - ticagrelor or clopidogrel for 12 months
  • S - atorvastatin 80mg
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16
Q

Advice post MI - general

A
  • diet: advise a Mediterranean style diet, switch butter and cheese for plant oil based products.
  • Do not recommend omega-3 supplements or eating oily fish
  • exercise: advise 20-30 mins a day until patients are ‘slightly breathless’
  • sexual activity may resume 4 weeks after an uncomplicated MI.
  • Reassure patients that sex does not increase their likelihood of a further MI. PDE5 inhibitors (e.g, sildenafil) may be used 6 months after a MI.
  • They should however be avoided in patient prescribed either nitrates or nicorandil
17
Q

Atrial fibrillation - investigations

A
  • Palpate radial pulse
  • ECG
  • 24hr/event ECG
  • Bloods - LFTs, U&Es, TFTs, FBC, Ca2+ an Mg2+. blood glucose
  • Echocardiogram - underlying cardiac disease
  • CXR - suspect resp disease contributing to AF?
18
Q

RF - AF

A

SMITH
* Sepsis
* Mitral valve pathology
* Ischaemic HD
* Thyrotoxicosis
* Hypertension

19
Q

AF management - options

A
  • Rate control - eg BB, CCB (verapamil) or digoxin
  • Rhythm control - DC cardioversion, amiodarone, flecainide
  • Anticoagulation - DOACs
  • Can combine two rate if choosing rate control, on max dose and still uncontrolled, if this still is not controlling refer within 4 weeks to cardiology
20
Q

AF management - scenario based

A
  • Haemodynamic compromise - immediate DC cardioversion
  • Stroke - aspirin 300mg for 2 weeks, followed by DOAC/warfarin
  • Less than 48hrs of symptoms - rhythm or rate control (usually rhythm)
  • More than 48hrs/uncertain onset - immediate rate control, delayed rhythm control (3 weeks later after anticoag) THEN if Clear reversible trigger - rhythm but if not rate is 1st line
  • Paroxysmal AF - rate control or pill in pocket approach eg flecainide
21
Q

Anticoagulation for AF

A
  • New onset of AF no other anticoags - heparin until assess need for long term anticoag
  • Patients who presented within 48hrs of AF who started on heparin can stop this as long as normal sinus rhythm within 48hrs and low risk of recurrence
  • All other patients should be assessed for long term anticoag - CHADS2V2ASc and HASBLED
22
Q

Follow up for AF

A
  • 1 week after rate control initiation or any changes to rate control
  • Uncontrolled symptoms –> cardiology referral and seen within 4 weeks
  • Annual review of symptoms, medication, review need for anticoag
  • Blood tests for medication monitoring as required
23
Q

Heart failure - investigations

A
  • NT-pro-BNP
  • High (>2000ng/L)- transthoracic echo within 2 weeks
  • Raised (400-2000) - within 6 weeks
  • ECG
  • Consider CXR, bloods, urinalysis, peak flow and spiro
24
Q

Heart failure - management

A
  • 1st line - ACEi and beta blocker (bisprolol, carvedilol or nebivolol)
  • 2nd line - aldosterone antagonist (eg spironolactone or eplerenone), OR angiotensin II receptor blocker OR hydralazine + nitrate; if intolerant to acei/arb
  • 3rd line - cardiac resynchronisation therapy, digoxin or ivabradine (must have HR >75 and EF <35%)
  • Diuretics for fluid overload
  • Annual flu and one off pneumococcal
25
Q

Other drugs for HF

A
  • Sacubitril Vaslartan - symptomatic despite ACEi/ARB - with reduced EF
  • Only initiate following ACEi/ARB washout period
26
Q

Criteria for cardiac reschronisation therapy

A
  • Wide QRS and heart failure
  • Improves symptoms and reduces hospitalisation in NYHA class III patients
27
Q

When to esp consider digoxin for HF?

A

If AF alongside

28
Q

HFpEF - ACEi and BB

A

No evidence of effect on mortality

29
Q

NYHA classification of HF

A
  • Class I - no symptoms, no limitations, ordinary physical exercise does not cause dyspnoea, fatigue or palps
  • Class II - mild symptoms, slight limitation of physical activity, comfortable at rest but ordinary activities can cause fatigue, dyspnoea or palps
  • Class III - moderate symptoms - marked effect on physical acitivty, comfortable at rest but less than ordinary activities produces symptoms
  • Class IV - severe symptoms, unable to carry out any physical acitivty without discomfort, present even at rest
30
Q

HFpEF vs HFrEF

A
31
Q
A