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Aims. Brief overview Identifying Syncope Identify patients at risk SCD risk of physical injury DVLA regulations. What is dizzy turns, blackouts and palpitations?. Dizzy Turns and Blackouts. Cardiac. Non - Cardiac. Syncope.
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Aims • Brief overview • Identifying Syncope • Identify patients at risk • SCD • risk of physical injury • DVLA regulations
Dizzy Turns and Blackouts Cardiac Non - Cardiac
Syncope “Transient Global Cerebral Hypoperfusion characterised by rapid onset, short duration and spontaneous complete recovery” (ESC)
50% 15% ESC 2008 Syncope guidelines
Palpitations Cardiac • Tachyarhythmia • AF/flutter / SVT / VT • Ventricular and atrial ectopics Non Cardiac • sinus tachycardia • GORD • Anxiety / emotion • Rare (Phaechromocytoma / carcinoid)
How Common a Problem is it? • 1% ED referrals (40% admission rate) • Common in general population ED 0.7 GP 9 Gen population - 18-39 Syncopal episodes / visits per 1000 pt years (Ganzebaum, J Cardiovasc EP 2006 Netherlands)
Prognosis / Importance 1 Prognosis • Structural HD and Primary electrical disease 2 Recurrence 3 QOL 4 Cost - high (UK £611 per pt / £1080 per diagnosis)
Initial Evaluation • Makes diagnosis in 20 - 50% of cases • Aims - • identify syncope • Risk assess for SCD (/ risk of recurrence and injury / driving)
Initial evaluation, diagnosis and risk stratification • History • Examination (including lying and standing BP) • ECG (Further investigations only make diagnosis in 25% of undiagnosed patients)
Diagnosis of Syncope • “Transient global cerebral hypoperfusion characterised by rapid onset, short duration and spontaneous complete recovery” † Was LOC complete? † Was LOC transient with rapid onset and short duration? † Did the patient recover spontaneously, completely and without sequelae?
Examination • Evidence of structural heart disease • Murmours • Signs of heart failure • Orthostatic BP
ECG • Q waves (prior MI) • LBBB or RBBB and anterior or posterior hemiblock
ECG • Q waves (prior MI) • LBBB or RBBB and anterior or posterior hemiblock • AV block (2nd degree and higher) • Sinus bradycardia (<50 bpm) or sinus pauses >3 seconds
ECG 2 • Pre-excitation (short PR and delta wave) • Prolonged QT • Widened QRS • RBBB with ST elevation V1 -V3 (Brugada)
Important causes of cardiac syncope - “Red Flags” - Palpitations • Severe SOB • Severe Chest Pain • Syncope / near syncope
ARVD • Fibofatty infiltration of RV
Further Investigations • Echo (? structural heart disease) • Holter (useful for frequent symptoms) • Loop recorders (internal (REVEAL)/ external) • ETT (syncope during or shortly after exercise) • EP studies • Neurological / psychiatric assessment
Driving Regulations DVLA Quick Guide
Summary • Common problem • Directed history, examination and ECG can make diagnosis in up to 50% of cases. • Initial Evaluation allows identification of high risk patients for speedy referral / investigations