EKGs were screened for the presence of a Q wave and compared to those with a positive DHE regardless of the myocardial post-gadolinium pattern. Then we divided the patients into 3 subgroups: 1) one group with only positive DHE (DHE + ) pattern of ischemia 2) the other group with other...
Signs of ischemia, a sudden loss or reduction in blood supply to a region of heart tissue What is a multichannel recorder? A device that can monitor and record multiple lead tracings simultaneously What is the speed setting for most common EKG recordings? 25mm/second What speed setting should...
Describe the criteria/calculation for LVH 1. Depth of S wave in V1 + height of R wave in V5 2. If > 35mm = LVHReview Hypertrophy summaryWhat is ischemia? Reduction in blood supply What is injury? Acuteness of an infarction→infarction is when an area of tissue is deprived of blood ...
摘要: In order to observe the development of ventricular arrhythmia during regional myocardial ischemia and reperfusion, especially under the presence or absence of ST-T electrical alternans on epicardial EKG.关键词: Ventriculararrhythmia ST-Telectricalalternans ...
LITFL ECG library is a free educational resource covering over 100 ECG topics relevant to Emergency Medicine and Critical Care. All our ECGs are free to reproduce for educational purposes, provided: The image is credited to litfl.com. The teaching activity is on a not-for-profit basis. ...
Depression >1mm is myocardial ischemia. Elevation >1mm possible myocardial damage or injury e. T waves i. Ventricular repolarization ii. Ventricle response during the relative refractory period can lead to ventricular fibrillation (caused by R on T) iii. Negative deflection suggest myocardial ischemia...
What factors may be responsible for hypertrophy of the right or left ventricle? How does the ECG vary and what is occurring during these conditions: junctional rhythm, second degree heart block and ventricular fibrillation? Explain how ischemia can cause a myocardial infarction. What happens whe...
LITFL Further Reading ECG Library Basics– Waves, Intervals, Segments and Clinical Interpretation ECG A to Z by diagnosis– ECG interpretation in clinical context ECG ExigencyandCardiovascular Curveball– ECG Clinical Cases 100 ECG Quiz– Self-assessment tool for examination practice ...
arrhythmias but one should be cautious when using these systems to diagnose morphological conditions (e.g ischemia) that dependent on criteria for amplitudes and intervals (because the alternative electrode placement may affect these variables and cause to false positive and false negative ECG criteria)...
IschemiaCardiomyopathyCardiovascular Magnetic ResonanceFalse Positive ResultLate Gadolinium EnhancementBackground The presence of Q wave on EKG remains in wide clinical use to identify people with prior myocardial infarct (MI), in particular transmural infarct. We hypothesized that standard assessment of ...