What ECG finding is most consistent with a ventricular aneurysm?
T-wave/QRS ratio < 0.36 in all precordial leads favours LV aneurysm.
Which ECG pattern may be indicative of left ventricular aneurysm?
On ECG, these ST elevations, either concave or convex, will primarily be in the precordial leads with relatively diminished T-wave amplitude in comparison to the hyperacute T-waves of a STEMI. Persistent ST elevation after a STEMI can signify a left ventricular (LV) aneurysm.
Can you see aneurysm on ECG?
A left ventricular aneurysm can be diagnosed on ECG when there is persistent ST segment elevation occurring 6 weeks after a known transmural myocardial infarction (usually an anterior MI). Without knowing the past medical history, the ECG changes of an aneurysm may mimic an acute anterior MI.
What is LVA on EKG?
A left ventricular aneurysm (LVA) is a localized dyskinetic area of infarcted myocardium that bulges in systole and diastole [1].
What is early repolarization ECG?
Early repolarization pattern (ERP) is a common ECG variant, characterized by J point elevation manifested either as terminal QRS slurring (the transition from the QRS segment to the ST segment) or notching (a positive deflection inscribed on terminal QRS complex) associated with concave upward ST-segment elevation and …
Which ECG changes may be indicative of STEMI?
Classically, STEMI is diagnosed if there is >1-2mm of ST elevation in two contiguous leads on the ECG or new LBBB with a clinical picture consistent with ischemic chest pain. Classically the ST elevations are described as “tombstone” and concave or “upwards” in appearance.
How is ventricular aneurysm diagnosed?
A ventricular aneurysm may be noninvasively diagnosed by means of echocardiography, magnetic resonance imaging (MRI), radionuclide ventriculography, or dynamic gated computed tomography (CT) scanning. It may also be recognized during cardiac catheterization by means of left ventriculography.
What causes ventricular aneurysm?
Ventricular aneurysms are usually caused by a weakening of the ventricular wall resulting from damage from a heart attack. In rare cases, a person can be born with a genetic disorder that can lead to ventricular aneurysms.
How do you find the J point?
The J point is the the junction between the termination of the QRS complex and the beginning of the ST segment. The J (junction) point marks the end of the QRS complex, and is often situated above the baseline, particularly in healthy young males.
Which ECG findings is characterized by elevation of the J point?
Early repolarization – UpToDate. The term early repolarization (ER), also known as “J-waves” or “J-point elevation,” has long been used to characterize a QRS-T variant on the electrocardiogram (ECG).
What is the ECG pattern for left ventricular aneurysm?
Left Ventricular Aneurysm Overview. The mechanism is thought to be related to incomplete reperfusion and transmural scar formation following an acute MI. This ECG pattern is associated with paradoxical movement of the ventricular wall on echocardiography (ventricular aneurysm).
What causes ST elevation in left ventricular aneurysm?
Left Ventricular Aneurysm Overview. However, some degree of ST elevation remains in 60% of patients with anterior STEMI and 5% of patients with inferior STEMI. The mechanism is thought to be related to incomplete reperfusion and transmural scar formation following an acute MI.
What causes persistent ST elevation on the ECG?
Left ventricular aneurysm formation following acute STEMI causes persistent ST elevation on the ECG. ECG Features of Left Ventricular Aneurysm ST elevation seen > 2 weeks following an acute myocardial infarction Most commonly seen in the precordial leads
When do St waves return after left ventricular aneurysm?
Left Ventricular Aneurysm Overview. Following an acute STEMI, the ST segments return towards baseline over a period of two weeks, while the Q waves persist and the T waves usually become flattened or inverted. However, some degree of ST elevation remains in 60% of patients with anterior STEMI and 5% of patients with inferior STEMI.