https://ecgvn.com/en/tags/isoelectric-lead/ Recent content in Isoelectric Lead on ECG Library – LITFL Basics Hugo en-us Sun, 17 Nov 2024 00:00:00 +0000 https://ecgvn.com/en/posts/ecg-axis-interpretation/ Sun, 17 Nov 2024 00:00:00 +0000 https://ecgvn.com/en/posts/ecg-axis-interpretation/ <p><strong>Cardiac axis</strong> represents the sum of depolarisation vectors generated by individual cardiac myocytes. Clinically is is reflected by the ventricular axis, and interpretation relies on determining the relationship between the QRS axis and limb leads of the ECG (below diagram)</p> <p>Since the left ventricle makes up most of the heart muscle under normal circumstances, normal cardiac axis is directed downward and slightly to the left:</p> <ul> <li><strong>Normal Axis</strong> = QRS axis between -30° and +90°.</li> </ul> <p>Abnormal axis deviation, indicating underlying pathology, is demonstrated by:</p> https://ecgvn.com/en/posts/super-axis-man-sam/ Tue, 03 Nov 2020 00:00:00 +0000 https://ecgvn.com/en/posts/super-axis-man-sam/ <p><a href="https://litfl.com/ecg-library/basics/">↪  ECG Basics Homepage</a></p> <hr> <h3 id="who-is-sam">Who is SAM?</h3> <p>As a routine part of ECG analysis, we need to determine the <a href="https://litfl.com/ecg-axis-interpretation/">ECG AXIS</a>. It isn’t really enough to just whimper… “Is it <em>normal?</em>” So, to help understand axis a tiny bit…I need to introduce you to <strong>SAM</strong> – the <strong>S</strong>uper <strong>A</strong>xis <strong>M</strong>an</p> <hr> <h4 id="building-sam--the-super-axis-man">Building SAM – the Super Axis Man</h4> <h5 id="1-draw-a-circle-and-put-sams-head-on-the-top">(1) Draw a circle and put SAMs head on the top.</h5> <p><em>Note:</em> SAM is smiling today because he is learning something…</p>