Section 9 Technical issues Electrical interference Skeletalmuscle interference Regular skeletal muscle interference ‘Technical’ dextrocardia Misplaced chest leads Case 84 A routine preoperative recording Electrical interference • A regular wave at…
Fig. 2 Fig. 3 Fig. 4 Case 1 Your opinion is requested on the pre-operative risk assessment of a moderately obese 79-year-old female due to undergo hip replacement surgery. She…
Fig. 64.2 Presence of epicardial coronary artery disease (CAD) related to age and sex (a) women, (b) men, (c) symptoms and (d) ECG changes. Probably no test is as used…
Fig. 39.2 Measurement of the QT interval. It is usual to measure the QT interval in lead II (the T wave is often very well defined). The QT interval is…
Fig. 63.2 (a) Print out from the time a patient was ‘dizzy’. Sinus rhythm gives way to a narrow complex bradycardia without preceding P waves. This is sinus arrest due…
