ECG changes in left ventricular hypertrophy (LVH) and right ventricular hypertrophy (RVH). The electrical vector of the left ventricle is enhanced in LVH, which results in large R-waves in left-sided leads (V5, V6, aVL and I) and deep S-waves in right-sided chest leads (V1, V2).

2024年10月10日 · LV strain pattern with ST depression and T-wave inversions in I, aVL and V5-6. ST elevation in V1-3. Prominent U waves in V1-3. Left axis deviation. Severe LVH such as this appears almost identical to left bundle branch block — the main clue to the presence of LVH is the excessively high LV voltages.

Figure 3. The electrical activity on an ECG (EKG). The areas represented on the ECG are summarized below: V1, V2 = RV; V3, V4 = septum; V5, V6 = L side of the heart; Lead I = L side of the heart; Lead II = inferior territory; Lead III = inferior territory; aVF = inferior territory (remember ‘F’ for ‘feet’) aVL = L side of the heart; aVR ...

V5导联在左腋前线与V4同一水平处，V6导联在左腋中线与V4同一水平处，这两个导联主要反映左心室侧壁的电活动。 通过观察这些导联上的心电图波形，可以了解心脏的节律、心率、心肌缺血、心肌梗死等情况。 例如心肌梗死时，相应部位的导联会出现特征性的心电图改变。 如果前间壁心肌梗死，V1、V2、V3导联可能会出现ST段抬高、T波倒置等异常表现。 不同的心脏疾病在心电图上的表现各不相同，医生可以根据这些特征来判断病情。 心电图上的V1、V2、V3、V4、V5 …

ST segment depressions are seen in leads V5, V6, aVL and I. The hallmark of left bundle branch block is the wide QRS complex (QRS duration ≥0.12 s), deep S-wave in V1–V2, large and clumsy R-wave in V5, V6, aVL and I. These ECG changes are shown in Figure 7, which should be studied carefully.

Learn everything about ECG leads, electrodes and different lead systems. The 12-lead ECG, including limb leads and precordial (chest) leads are discussed. Includes a complete e-book, video lectures, clinical management, guidelines and much more.

V5: 5th intercostal space, anterior axillary line. V6: 5th intercostal space, mid axillary line. Below is a diagram showing the ribs, intercostal spaces, sternum (breastbone), and clavicle (collarbone). I will now explain how to locate the correct spots on a patient. Also, watch the video which will demonstrate this.

2022年1月30日 · Fontaine bipolar precordial leads (F-ECG) are used to increase the sensitivity of epsilon wave detection. Named after French cardiologist and electrophysiolgist Guy Hugues Fontaine (1936-2018). Leads are placed as shown: Right Arm (RA) over the manubrium; Left Arm (LA) over the xiphoid process;

2025年1月9日 · The V1 to V6 leads in an electrocardiogram (ECG) are chest leads that provide a specific view of the heart's electrical activity from different angles on the chest. Here's a breakdown of their specific placements:

Explore the electrical axis of EKG leads, deflections, precordial leads, and cardiac rotation. Learn about transition zones and normal vs. rotational patterns.