2022年1月29日 · The P wave is the first positive deflection on the ECG and represents atrial depolarisation. Atrial abnormalities are most easily seen in the inferior leads (II, III and aVF) …

In this article, we will explore the complexities of the P wave, its importance and its implications in EKG analysis. The P wave is the first deflection of the cardiac cycle seen on an EKG. It represents the electrical activity associated with atrial depolarization.

ECG interpretation requires knowledge of these waves and intervals. ECG interpretation traditionally starts with an assessment of the P-wave. The P-wave reflects atrial depolarization (activation). The PR interval is the distance between the onset of …

In cardiology, the P wave on an electrocardiogram (ECG) represents atrial depolarization, which results in atrial contraction, or atrial systole. The P wave is a summation wave generated by the depolarization front as it transits the atria.

2023年7月24日 · The P wave and PR segment is an integral part of an electrocardiogram (ECG). It represents the electrical depolarization of the atria of the heart. It is typically a small positive deflection from the isoelectric baseline that occurs just before the QRS complex.

A detailed view of the P-wave, PR interval and PR segment, with emphasis on ECG features, normal findings, normal variants and pathology.

2020年7月26日 · A P wave on an electrocardiogram represents a phase of electrical activity that causes the atria of the heart to contract. The P wave is a summation wave – electrical activity that comes from successive signaling from multiple points, causing wave-like contractions.

6 天之前 · The electrocardiographic waves are called P, Q, R, S, T, U (in that order) and they are connected to each other by an isoelectric line. The P wave is the first wave of the cardiac cycle. It represents atrial depolarisation. It is the result of overlayiwg the electrical activity of both atria.

The P wave should be upright in lead II if the action potential is originating from the SA node. In this setting, the ECG is said to demonstrate a normal sinus rhythm, or NSR.

Sinus rhythm (which is the normal rhythm) has the following characteristics: (1) heart rate 50–100 beats per minute; (2) P-wave precedes every QRS complex; (3) the P-wave is positive in lead II and (4) the PR interval is constant.