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Management of Stable coronary artery disease - Guideline by UK Expert Panel
Secondary event prevention and risk stratification is an important aspect in the management of patients with stable coronary artery disease. A UK multidisciplinary expert panel comprising of Fay M et al have developed a guideline for Secondary event prevention and risk stratification in Stable coronary artery disease.
CAD remains the greatest cause of morbidity and mortality worldwide although a combination of multiple strategies to prevent and treat coronary artery disease (CAD) has led to a relative reduction in cardiovascular mortality over recent decades
Key recommendations of consensus guideline for long-term management of patients with stable coronary artery disease (CAD) are-
Management of patients
- Discuss all treatment options with the patient, explaining the risk-benefit profile of all drugs so they can make informed decisions
Prevention—lifestyle modification
- Educate patients on lifestyle changes to prevent future events and improve symptoms:
- smoking cessation
- physical activity
- diet
- Refer patients for cardiac rehabilitation if not already referred by secondary care and encourage them to maintain attendance and to attend if they have not started despite referral
- Reinforce the importance of lifestyle changes, particularly smoking cessation, at every opportunity
Prevention—medication review and optimisation
- All patients with CAD should be prescribed:
- statins
- antiplatelet and anticoagulant drugs
- angiotensin-converting enzyme (ACE) inhibitors
- antihypertensive agents
Statins
- Rule out familial hyperlipidaemia in patients with markedly raised cholesterol
- Manage lipids in accordance with NICE cardiovascular disease guideline (CG181)
- step down is no longer a strategy for lipid management
- atorvastatin 80 mg once daily is the first-line choice
- No other drug class can be substituted for statins, so switch to an alternative statin if patients cannot tolerate side-effects with one agent
- for patients who develop myalgia, try withdrawing statin treatment for 2 months, a 50% dose reduction, or switch to rosuvastatin initially at 5 mg and titrate up to 20 mg once daily
Antiplatelet and anticoagulant drugs
- Prescribe antiplatelet therapy, typically aspirin 75 mg
- after an acute coronary syndrome (ACS) event, prescribe dual antiplatelet therapy (DAPT) for the first 12 months with aspirin 75 mg + clopidogrel 75 mg once daily, prasugrel 10 mg once daily, or ticagrelor 90 mg twice daily for up to 12 months based on local guidance
- for patients at high risk (e.g. aged ≤65 years, previous multivessel disease, CVD, diabetes, or chronic kidney disease (CKD) grade 3 or higher), consider:
- aspirin 75 mg once daily + 90 mg ticagrelor twice daily for 12 months after an ACS event, then 60 mg twice daily for 36 months
- aspirin 75 mg + rivaroxaban 2.5 mg twice daily (lifelong)
- prescribe a proton pump inhibitor (PPI) to patients aged ≥65 years or with a previous gastrointestinal bleed
- educate patients about using gloves and aqueous cream to prevent bruising
- At the annual review after 12 months:
- check concordance; this can be supported by pharmacy medicines use review
- continue to treat high-risk patients (see Box 1) aggressively
- most patients at low risk can discontinue the second antiplatelet drug to be maintained on aspirin 75 mg
- do not discontinue antiplatelet therapy completely without specialist advice
ACE inhibitors
- ACE inhibitors are primarily preventative therapy
- prescribe an ACE inhibitor to all patients unless there are contraindications or other good reasons not to do so
- prescribe an ACE inhibitor if blood pressure (BP) is uncontrolled, the patient has residual risk, and echocardiography showed functional impairment
- Aggressively treat high-risk patients (e.g. aged ≤65 years, previous multivessel disease, CVD, diabetes, or CKD grade 3 or higher):
- aim for BP <130/80 mmHg to minimise the bleeding risk as much as possible
- If patients experience issues specific to ACE inhibitors, alternatives such as an angiotensin receptor blocker (ARB) or sacubitril/valsartan should be considered in line with local guidance
- If patients develop side-effects, consider switching to an alternative agent
- for patients who develop cough, discontinue the ACE inhibitor but maintain aggressive BP management—for example, by switching to an ARB
- if the patient has high BP without left ventricular systolic dysfunction (LVSD), switch to an ARB to maintain BP control
- if the patient is taking the ACE inhibitor because they have LVSD, replace as per guidance on LVSD in NICE chronic heart failure (CHF) guideline (NG106)
Beta-blockers
- Up to 12 months of beta-blockers is ‘unequivocal’ if the patient has substantial damage to the anterior wall
- beta-blockers may provide a symptomatic benefit in patients with symptoms
- patients who discontinue beta-blockers and undergo bypass surgery are at increased risk of sudden death
- Continue beta-blockers for heart rate control in patients with AF
- Continue cardioselective beta-blockers in patients with LVSD
- cardioselective beta-blockers are not contraindicated in people with PAD or chronic obstructive pulmonary disease (COPD)
- beta-blockers licensed for LVSD may be appropriate if the patient also has PAD
- Switch to dihydropyridine, which has advantages in terms of stroke and infarction, for patients without LVSD, in whom the benefit of long-term use of beta-blockers after myocardial infarction (MI) is less clear cut than for CHF
- All preventative medicines should be reviewed, titrated, and optimised
Box 1: Risk stratification in patients with CAD
In patients with CAD, the following factors increase the risk of an event and require more intensive management:
CAD=coronary artery disease; CKD=chronic kidney disease; PAD=peripheral arterial disease; TIA=transient ischaemic attack |
Prevention—Any cardiovascular comorbidity like CKD, PAD, stroke/transient ischaemic attack, LVSD, atrial fibrillation (AF) etc.may be managed according to the prescribed NICE guideline for that condition.
Symptom management
- Identify symptoms that are affecting the quality of life or that may indicate comorbid disease, e.g. dyspnoea on exertion, orthopnoea, palpitations, and claudication
- Prescribe beta-blockers and other anti-anginal for symptom control
- For patients with tachycardia:
- aim for 60–70 bpm in patients with stable angina
- beta-blocker is the first-line choice
- if tachycardia persists, titrate the beta-blocker or switch to dihydropyridine
- If patient experiences chest pain within a month of discharge:
- check concordance with drugs
- optimise treatment in line with NICE chest pain guideline (CG95)
- advise the patient about the use of glyceryl trinitrate (GTN) for chest pain and when to call an ambulance
- if pain worsens despite treatment modifications, refer to cardiology
- All medicines to manage symptoms should be reviewed, titrated, and optimised
- If there is a step-change in symptoms:
- in patients with known residual ischaemia in whom revascularization was deferred because the condition was considered too complicated for surgery or the patient declined surgery:
- trial a higher dose or add in a second anti-anginal drug, e.g. GTN
- refer for specialist advice, as necessary, to re-evaluate residual CAD
- if symptoms worsen over a course of months after 12 months despite beta-blocker or dihydropyridine:
- add in a new drug (e.g. a long-acting nitrate or ivabradine in line with CG126)
- elective referral for specialist opinion
- if symptoms rapidly progress over days and weeks:
- check for co-morbidities
- add in a new drug (e.g. a long-acting nitrate or ivabradine in line with CG126)
- urgent referral for cardiological advice
- in patients with known residual ischaemia in whom revascularization was deferred because the condition was considered too complicated for surgery or the patient declined surgery:
Annual review
- An annual review is important to:
- assess symptoms
- assess and reinforce the importance of concordance with medicines and lifestyle changes, including smoking cessation
- Box 2 summarises key points to cover during ongoing and annual surveillance of patients with CAD
Box 2: Ongoing annual surveillance in patients with CAD
ACE=angiotensin-converting enzyme; ARB=angiotensin receptor blocker; CAD=coronary artery disease; T2DM=type 2 diabetes mellitus |
Different tools for risk stratification have been developed and validated in patients with CAD. A stepwise approach, considering the characterisation of both ischaemic and bleeding risk is advisable in these patients to better guide both the immediate and long-term medical management strategies.
For further reference log on to :
https://www.guidelines.co.uk/cardiovascular/stable-coronary-artery-disease-guideline/454451.article
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