update 03/10/13- 97 days to go! simply… lecture profroma · 5 each little square is 0.04s each...
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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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