Left Anterior Fascicular Block (LAFB)
In left anterior fascicular block (LAFB), impulses are conducted to the left ventricle via the posterior fascicle, producing characteristic ECG changes
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Left Posterior Fascicular Block (LPFB)
Left posterior fascicular block LPFB (left posterior hemiblock), impulses are conducted to the left ventricle via the left anterior fascicle
Hypomagnesaemia
Isolated low serum Mg levels are associated with atrial depolarisation and ventricular repolarisation abnormalities, predisposing to ventricular arrhythmias
Trifascicular Block
Trifascicular block (TFB) refers to the presence of conducting disease in all three fascicles: RBBB, LAFB, LPFB. LITFL ECG Library
First Degree Heart Block
Defined as PR interval > 200ms, commonly caused by AV nodal blocking drugs
QRS Interval
Narrow and broad/Wide QRS complex morphology Low/high voltage QRS, differential diagnosis, causes and spot diagnosis on LITFL ECG library
ECG Case 118
This ECG is from a 35 yr old male Type 1 diabetic. He presents feeling generally unwell with abdominal pain and dyspnea. Interpret the ECG
ECG Case 117
ECG of a 14yr old female who presents following an episode of palpitations and associated dizziness. Interpret her ECG using the Arruda algorithm
ECG Case 116
These ECGs were taken from a 40 yr old male who presented with a 60 minute history of central chest pain. Describe and interpret his ECG
ECG Case 115
ECG of a 71 y/o male who presented with several episodes of ischaemic sounding chest pain on a background of known ischaemic cardiac disease.
ECG Case 114
20 yr old female who presented to the Emergency Department following an episode of chest pain. At review she was pain free and all vital signs were normal. Her serial ECG's are below, there is ~30 mins between each ECG.
ECG Case 113
65 year old male who was brought to the Emergency Department following an out-of-hospital cardiac arrest. Describe and interpret this ECG. LITFL Top 100 ECG