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Ischaemia. 6 Step Approach Raj Chahal April 2012. 6 STEP APPROACH. RATE AND RHYTHM P WAVES QRS ST SEGMENT T WAVES AXIS. CONTEXT!!. Symptoms Age & Risk Factors Story 70 year old male smoker with 1 hours of central chest ache
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Ischaemia 6 Step Approach Raj Chahal April 2012
6 STEP APPROACH • RATE AND RHYTHM • P WAVES • QRS • ST SEGMENT • T WAVES • AXIS
CONTEXT!! • Symptoms • Age & Risk Factors • Story • 70 year old male smoker with 1 hours of central chest ache • 23 year old pregnant lady with calf pains, then sharp pleuritic chest pains • 75 year old lady with dysuria, history of MI 2 years ago, no recent pains
Major Criteria • ST SEGMENT ELEVATION • ST SEGMENT DEPRESSION • T WAVE INVERSION • NEW LEFT BUNDLE BRANCH BLOCK
Minor Criteria • T WAVE FLATTENING • BIPHASIC T WAVES • Q WAVES • PROLONGED QTc INTERVAL
REMEMBER CONTIGUOUS LEADS • THROUGH HORIZONTAL AND VERTICAL AXIS • V1 – V2 – V3 – V4 – V5 – V6 • AVL – I – II – AVF – III – AVR
EXAMPLES • RATE AND RHYTHM • P WAVES • QRS • ST SEGMENT • T WAVES • AXIS
ECGs IN PRACTICE Have a look at the following ECGs in small groups and decide what the ischaemic abnormality is…?
Thank you ECGs courtesy of – ECGs By Example 2nd Ed, Jenkins & Gerred, Elsevier 2005.