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Each little square is 0.04sEach big square is 0.2s

BRADYIatrogenic- beta blockers/digoxin/amiodoroneDisease- MI, Hypothyroidism, Raised intracranial pressure, Hypothermia

TACHY

Iatrogenic- Adrenaline, alcohol, caffeine, salbutamolPathological—Fever, anaemia, hypovolaemia, hypoxia, thyrotoxicosis

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What is sinus rhythm?

Normal -30 to +90

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Lead II best

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Need pacing

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Need pacing

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CausesIHDHypertensive Heart DiseaseDilated CardiomyopathyIdiopathic Fibrosis of the Conducting System

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William vs Marrow

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Picture of marrow3 Bundles of His

1 on Right, 2 on LeftCauses

NormalRheumatic heart diseaseCor pulmonale/right ventricular hypertrophyMyocarditis or cardiomyopathyIHDDegenerative disease of the conduction systemPulmonary embolusCongenital heart disease: ASD

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CausesIHDHypertensive Heart DiseaseDilated CardiomyopathyIdiopathic Fibrosis of the Conducting System

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Rate – 5=60Rhythm- Nfirst degree heart block, left axis deviation and RBBBTrifasicular block

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ST segment elevation of greater than 1mm in at least 2 contiguous leadsHeightened or peaked T waves

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Depth of Q wave should be 25% the height of the R waveWidth of Q wave is 0.04 secsDiminished height of the R wave

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Rate- 75Rhythm- NSRAxis – NQRS – NT- tall tented

Hyperkalaemia

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Rate- 75NSRRADP- waves presentPR- NormalQRS- Q waves in IRBBB

Dx PE- Rare findings on ECG - this is “classical” S1 Q3 T3. Normally just sinus tachycardia

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Rate 100SinusAxis mild leftRest normalST- coved st segment with TWI

Brugada syndrome

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•Causes–Cardiomyopathy–COPD–IHD–Rheumatic heart disease–Sick sinus syndrome–Digoxin toxicity

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Result of abberant internal circuit within atria

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CausesIHDHypertensive heart diseaseRheumatic heart diseaseThyrotoxicosisAlcohol misuseCardiomyopathySick sinus syndromePostcardiac surgery

Chronic pulmonary diseaseIdiopathic (lone)

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Terminates with Adenosine

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