ECG- කියවමු 2 කොටස - හදවතේ කර්නිකා ආශ්‍රිතව ඇතිවන ECG වෙනස්කම් - Heart block , fibrillation , WPW.

Atrial ECG changes refer to alterations in the electrocardiogram (ECG) that specifically reflect the electrical activity of the atria-the upper chambers of the heart. These changes can be indicative of various cardiac conditions affecting the atria. Here's a description of some common atrial ECG changes:
Atrial Fibrillation (AFib):
Description: AFib is a common atrial arrhythmia characterized by chaotic, rapid electrical activity in the atria.
ECG Characteristics:
Absence of distinct P waves due to irregular and rapid atrial depolarization.
Instead of P waves, fibrillatory or "f" waves may be observed.
Irregularly irregular ventricular rhythm (QRS complexes may appear irregularly).
Atrial Flutter:
Description: Atrial flutter is another atrial arrhythmia characterized by rapid regular atrial contractions.
ECG Characteristics:
Sawtooth-shaped flutter waves (F waves) between QRS complexes.
The atrial rate is often faster than the ventricular rate.
Atrial Tachycardia:
Description: Atrial tachycardia involves a rapid heart rate originating in the atria.
ECG Characteristics:
Regular, fast atrial depolarization.
P waves may have a different morphology compared to normal sinus rhythm.
Atrial Enlargement:
Description: Atrial enlargement occurs when the atria become enlarged due to conditions like hypertension or valvular heart disease.
ECG Characteristics:
P wave changes, such as increased amplitude and duration, may be observed.
In right atrial enlargement, changes are often seen in leads II, III, and aVF.
In left atrial enlargement, changes are seen in leads I, aVL, V1, and V2.
Atrial Premature Complexes (APCs):
Description: APCs are premature heartbeats originating in the atria before the next expected beat.
ECG Characteristics:
Premature P wave followed by a QRS complex.
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The premature P wave may have a different morphology than the normal P wave.
Atrial Standstill:
Description: Atrial standstill is a rare condition where there is a lack of atrial electrical activity.
ECG Characteristics:
Absence of P waves.
Only QRS complexes may be visible, indicating that the ventricles are being stimulated by another pacemaker.
Interpreting atrial ECG changes requires clinical expertise, and these changes may be associated with a variety of underlying cardiac conditions. A healthcare professional, typically a cardiologist, should assess and interpret these ECG findings in the context of a patient's overall health and medical history

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