Coronary Artery Disease

advertisement

UHCW Cardiology Teaching

Dr Chris McAloon

65 year old man

Playing golf

Sudden onset chest pain

Crushing, central, severe

Vomiting

No previous chest pain

HTN, Ex-Smoker

Otherwise well

GTN helped – not resolved

Pain

◦ Character / Radiation / GTN spray effect

◦ Was this pain like your previous Angina/ MI pain?

Autonomic features

Risk factors

◦ Smoker / Hypertension / Diabetes Hyperlipidaemia

/ Family history

◦ Previous MI / CABG / PCI / CVA

Differentials

Central Crushing Chest Pain

Exertional chest pain

Occurs at rest

Radiation

◦ Neck, arms (classically left)

Levine’s Sign

◦ Clenched fist over chest

Breathless

Autonomic features

ECS ACS NTE Guidelines 2011

Nicotine Stains

GTN spray

Xanthelasma

Scar’s

◦ Chest

◦ Legs

Evidence DM

BP/ Pulse/ Failure

65 year old

◦ Ankles/shins for SVG scar

◦ Radial for graft scar

CABG

35 year old

◦ Metallic Click

◦ Look left lateral

◦ Cyanosis etc

Valve/ Congenital surgery

ECS ACS Guidelines 2011

ECS ACS Guidelines 2011

©2003 by British Medical Journal Publishing Group

Grech E D , Ramsdale D R BMJ 2003;326:1259-1261

Ischaemic Heart Disease

Grech E D , Ramsdale D R BMJ 2003;326:1259-1261

©2003 by British Medical Journal Publishing Group

STEMI

©2003 by British Medical Journal Publishing Group

Grech E D , Ramsdale D R BMJ 2003;326:1379-1381

ECG Changes

V1-V3

Site of

Infarction

Anteroseptal

Vessel Occluded

LAD

V4, V5, AVL, I

Widespread

1, AVL, V1-V6

II, III, AVF

↓ ST V1-V2

↑ ST in post leads

Anterior Lateral LAD, diagonal

Large Anterior

Inferior

Posterior

Prox LAD (could be LMS

- Pump probs

RCA (or Cx)

- Bradyarrhythmia

RCA (or Cx)

NB remember Cx occlusion can be silent on the ECG

ANTERIOR STEMI

ST elevation V1-V6, reciprocal changes in

II, III, AVF

STEMI

31,412 in 2009-10

Frequency falling

NSTEMI

Estimated 100, 000 in 2009-10

Recorded frequency rising

50% not managed on ACU/ CCU

BCS Recommendations Acute Coronary Care Oct 2011

BCS Recommendations Acute Coronary Care Oct 2011

ECS ACS STE Guidelines 2011

THINK REPERFUSION STRATEGY:

■ Primary PCI if available (

CALL THE CATH LAB )

■ Thrombolysis if not, then refer to PCI centre

(GTN)

High Flow Oxygen (15L)

300mg Aspirin/ 600mg Clopidogrel

Analgesia: Morphine + Metoclopramide

Reperfusion: PCI / Fibrinolysis

Successful

Thrombolysis

ST segment resolution

50% at 90 minutes

ECS Revasculration Guidelines 2011

Direct paramedic transfer to PPCI centre or timely inter-hospital transfer

PPCI with first medical contact-to-balloon time <120 minutes

Monitoring on CCU (including for repatriated patients)

Early initiation of secondary prevention and cardiac rehabilitation

ECS Revasculration Guidelines 2011

BCS Recommendations Acute Coronary Care Oct 2011

95% England covered by PPCI networks

Thrombolysis remains in place in remote centres

◦ Geography impacts time to PPCI centre

30% Thrombolysis fail to reperfuse and need immediate rescue PCI

ECS ACS STE Guidelines 2011

Disruption of occlusion using a balloon

Stent deployed to maintain anterograde blood flow

Types

Primary PCI – PCI within 2 hours

Rescue PCI – PCI after failed thrombolysis

Facilitated PCI – PCI bridged with lytic therapy

◦ Time delayed PPCI

NSTEMI

©2003 by British Medical Journal Publishing Group

Grech E D , Ramsdale D R BMJ 2003;326:1259-1261

48 year old lady

Shopping

Central dull Pain on walking

Not relieved GTN spray

Gets on exertion normally

Recently distant decreasing to onset pain

Pain last night in bed

©2003 by British Medical Journal Publishing Group

Grech E D , Ramsdale D R BMJ 2003;326:1259-1261

Stable Angina

◦ pattern of frequency, intensity, ease of provocation, or duration does not change over several weeks

Accelerating Angina

◦ change in the pattern of stable angina

◦ greater ease of provocation, more prolonged episodes, and episodes of greater severity or more frequent use of sublingual GTN

Unstable Angina

◦ pattern of chest pain changes abruptly

Angina at rest—Also prolonged, usually > 20 minutes

Angina of new onset—At least CCS class III in severity

Angina increasing—Previously diagnosed angina that has become more frequent, longer in duration, or lower in threshold

(change in severity by > 1 CCS class to at least CCS class III)

Class I – Pain strenuous exertion

Class II – Slight limitation ordinary exertion

Class III – Marked limitation physical exertion

Class IV – Pain on any exertion

CCS = Canadian Cardiology Society

≥3 risk factors for coronary artery disease

≥50% coronary stenosis on angiography

ST segment change >0.5 mm

≥2 anginal episodes in 24 hours before presentation

Elevated serum concentration of cardiac markers

Use of aspirin in 7 days before presentation

©2003 by British Medical Journal Publishing Group

Grech E D , Ramsdale D R BMJ 2003;326:1259-1261

ECS ACS Guidelines 2011

BCS Recommendations Acute Coronary Care Oct 2011

Simplified management pathway for patients with unstable angina or non-ST segment elevation myocardial infarction.

Grech E D , Ramsdale D R BMJ 2003;326:1259-1261

©2003 by British Medical Journal Publishing Group

Aspirin 300mg

Clopidogrel 300mg (600mg if going to the lab)

LMWH

Bisoprolol / Atorvastatin 80mg ON/

ACE/ARB (can be next day)

GTN Spray/ Infusion

HIGH RISK patients: GPIIbIIIa

Cath Lab within 48-96hrs

High risk (GRACE >140) within 24 hours

◦ At Stafford discuss with Stoke

Intermediate risk (GRACE < 140) and high risk criterion within 72 hours

Low risk with recurrent symptoms

◦ Stress Test

ECS ACS Guidelines 2011

Thienopyridine related to Clopidogrel

Active metabolite irreversible inhibitor of ADP receptor

Effective when Clopidogrel Resistance

More rapid/ greater/ more consistent platelet inhibition

No drug interactions

Licensed used STEMI going PPCI

Prasugrel vs Clopidogrel

Wiviott SD et al. N Engl J Med 2007;357:2001-2015

Prasugrel vs Clopidogrel

Wiviott SD et al. N Engl J Med 2007;357:2001-2015

Cyclopentyl-triazolo-pyrimidine

Reversible inhibitor of ADP receptor

Rapid/ Predictable action

CYP450 interaction

NICE approval October 2011 ACS

Wallentin L et al. N Engl J Med 2009;361:1045-1057

Ticagrelor vs Clopidogrel

Wallentin L et al. N Engl J Med 2009;361:1045-1057

ECS ACS Guidelines 2011

Immediately

Aspirin ± PPI (Bleeding risk)

Clopidogrel (12 months)

B Blocker

ACEi- if intolerant give ARB

Atorvastatin 80mg

GTN Spray PRN

◦ 15 minute rule

Lifestyle

Diet

Physical Activity

Stop Smoking

Cardiac Rehab

Definitions ACS

Incidence and Prevalence

Pathophysiology

Differential Diagnoses

STEMI Intervention – current evidence

NSTEMI intervention – current evidence

Antithrombotic therapy use

New anti-thrombotics

Download