Orris
attachment
attachment

Analyse this ecg properly. Why this can cause acute stroke? There is huge p waves, la enlargement, can cause cardioembolic. Thats all i can see

Reading File
analyse_media
Finding Sources
Finding Sources
Searching PubMed

"atrial cardiopathy" AND stroke

Searching the Web

AHA ECG left atrial enlargement P wave criteria cardioembolic stroke atrial fibrillation guideline

Reading Web Page

https://www.escardio.org/communities/councils/cardiology-pra…

Finding Sources
This ECG is most consistent with typical atrial flutter with fixed 4:1 AV conduction, not simply large P waves from left atrial enlargement.

ECG interpretation

  • Rhythm: Regular narrow-complex rhythm.
  • Ventricular rate: About 75/min.
  • Atrial activity: Regular continuous flutter waves at roughly 300/min, best seen in:
    • inferior leads II, III, aVF, where they are predominantly negative
    • V1, where flutter activity is often more visible/positive
  • AV conduction: Approximately 4 flutter waves per QRS, giving a 4:1 block.
  • QRS: Narrow, with no bundle-branch block.
  • Axis: Appears broadly normal.
  • ST-T: No convincing acute STEMI pattern on this tracing. Minor nonspecific repolarization changes may be present.
The key correction: the apparent “huge P waves” are largely flutter (F) waves. Because there is no true isolated sinus P wave here, you cannot reliably diagnose ECG left atrial enlargement from P-wave morphology on this tracing.

Why this can cause acute ischemic stroke

Atrial flutter is a clinically important cardioembolic rhythm, much like atrial fibrillation:
  1. Rapid, ineffective atrial contraction, often involving coexistent or intermittent AF.
  2. Blood flow slows, particularly in the left atrial appendage.
  3. A left atrial/appendage thrombus can form.
  4. The clot can embolize through the left ventricle and aorta into a cerebral artery, causing an acute ischemic stroke.
So, yes, “cardioembolism” is the right mechanism, but the direct ECG diagnosis supporting it is atrial flutter, rather than LA enlargement alone. Atrial flutter has meaningful thromboembolic risk and is generally approached with the same stroke-risk framework used for AF. ESC review on occult AF and stroke notes that atrial electrical disease markers and occult atrial arrhythmias matter in cryptogenic stroke evaluation.

What should be checked in an acute-stroke setting

  • Continuous telemetry and review for AF/flutter burden
  • Transthoracic echocardiography, with consideration of TEE if left atrial appendage thrombus or another embolic source is suspected
  • Anticoagulation decision based on stroke risk, bleeding risk, timing/type/size of infarct, and brain imaging. This is not determined by this ECG alone.
  • Investigate drivers: hypertension, mitral valve disease, cardiomyopathy, thyroid disease, alcohol/stimulants, sleep apnea, etc.
If this is an ECG from a patient with current focal neurologic deficits, it supports an urgent stroke and cardiology assessment.
This is a shared conversation. Sign in to Orris to start your own chat.