tag:blogger.com,1999:blog-3364570834099131201.post5167965538891913458..comments2024-03-23T08:57:50.965-04:00Comments on ECG Interpretation: ECG Interpretation Review #28 (ST-T Wave Changes - Ischemia - RVH - RV "Strain")ECG Interpretationhttp://www.blogger.com/profile/02309020028961384995noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-3364570834099131201.post-42581524626121159512017-10-06T16:43:43.614-04:002017-10-06T16:43:43.614-04:00The patient did not have ARVC. It is not an epsilo...The patient did not have ARVC. It is not an epsilon wave. I agree that it may look like one — and there are anterior T wave inversions (as are seen with ARVC ...). Keep in mind that ARVC is a rare disorder ... so it won't be often that you see epsilon waves.ECG Interpretationhttps://www.blogger.com/profile/02309020028961384995noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-894042116260213072017-10-06T16:19:16.838-04:002017-10-06T16:19:16.838-04:00Is that an epsilon wave in lead v1???Is that an epsilon wave in lead v1???MGhttps://www.blogger.com/profile/06233522417024317416noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-58061200668678482412015-11-03T06:26:26.418-05:002015-11-03T06:26:26.418-05:00Your questions are good ones — but they address Ba...Your questions are good ones — but they address Basic Concepts and not this particular ECG. NSR ( = Normal Sinus Rhythm) means that there is a regular (or at least fairly regular) rhythm in which each impulse originates from the SA Node. We diagnose this by the presence of an upright P wave with fixed PR interval preceding each QRS complex. “Nonspecific” ST-T wave changes are said to exist when the ST-T wave does not look normal (with a flat ST segment gradually transitioning into a smooth upright T wave) — but is rather flat or slightly depressed in a number of leads indicating any of many possible causes (rather than tall, peaked T waves with narrow base that are more “specific” for hyperkalemia for example).<br /><br />I will suggest you review some basic concepts. If you click on the INDEX tab in the upper right of each page on my ECG Blog — you’ll be taken to a detailed Contents — and you can then look for whatever information you would like to review. <br /><br />Alternatively — IF you scroll down the right-hand column of each page on my Blog — you’ll see 3 Basic sources to go to: i) My, “1st Book on ECGs-2014” (available in book or ePub format) — which will walk you through ALL basic concepts from the very beginning; ii) Link to my ECG Video-Blog (easily found at www.videoecg.com) — where I have links to very detailed basic and advanced videos. There are more than 6 hours of videos on arrhythmias; and iii) Basic ECG Concepts — links to my blogs that review the basic material in the questions you ask.<br /><br />I hope this is helpful to you!<br />ECG Interpretationhttps://www.blogger.com/profile/02309020028961384995noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-33991993135416802302015-11-03T06:14:30.697-05:002015-11-03T06:14:30.697-05:00Thanks for the positive feedback! Thanks for the positive feedback! ECG Interpretationhttps://www.blogger.com/profile/02309020028961384995noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-53261674869264961502015-11-03T04:06:09.360-05:002015-11-03T04:06:09.360-05:00What is the meaning of
Normal Sinus Rhythm
Non Sp...What is the meaning of <br />Normal Sinus Rhythm<br />Non Specific ST T Waves Changes V1-V3<br />Thank you for those who answer this.Anonymoushttps://www.blogger.com/profile/00463396847241611275noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-61975813788256867832013-01-20T16:36:19.579-05:002013-01-20T16:36:19.579-05:00great interpretations, thank you for doing this. I...great interpretations, thank you for doing this. I am a medical student and it's helpful to see everything broken down. Unknownhttps://www.blogger.com/profile/07687602509578378836noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-56815799077732598992012-07-27T06:21:23.804-04:002012-07-27T06:21:23.804-04:00@Kaney - I appreciate your comment - though I'...@Kaney - I appreciate your comment - though I'm not sure I understand relevance to this tracing (which only shows sinus arrhythmia).ECG Interpretationhttps://www.blogger.com/profile/02309020028961384995noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-24760437647412072632012-07-27T00:55:24.621-04:002012-07-27T00:55:24.621-04:00Heart arrhythmia is a normal and common irregular ...Heart arrhythmia is a normal and common irregular heartbeat that most people will experience at least once in their lifetime and not even know it. Arrhythmia disrupts the normal pattern can cause your heart to beat too fast, too slow, or to beat in an irregular pattern.<br /><br /><a href="http://www.evitalhealth.com/Calm_PRT.html" rel="nofollow">Calm PRT</a> <a href="http://progonol1.webs.com/" rel="nofollow">Progonol</a>kaneyhttps://www.blogger.com/profile/04767722783117979542noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-75493088309981935062011-08-30T06:31:10.890-04:002011-08-30T06:31:10.890-04:00Hi Christopher. I intentionally chose not to menti...Hi Christopher. I intentionally chose not to mention the 'S1Q3T3' sign in this short column given its very limited sensitivity and specificity (at best 20% for both, as you allude to). I've spent a career looking for S1Q3T3 on patients suspected of acute PE, and don't know that I've ever seen it in this population - though I have seen S1Q3T3 on occasion in asymptomatic healthy individuals .... So given the many false positives and negatives with very low sensitivity - I don't think it a helpful ECG sign. On the other hand - there have been a number of occasions over the years when the ONLY clue suggesting acute PE in cases with atypical symptoms has been unexplained anterior T wave inversion that led to further diagnostics which confirmed the diagnosis - so good to be aware that PE may present with this sign. THANKS again for your comment Christopher!ECG Interpretationhttps://www.blogger.com/profile/02309020028961384995noreply@blogger.comtag:blogger.com,1999:blog-3364570834099131201.post-45231517006582279222011-08-29T17:11:37.769-04:002011-08-29T17:11:37.769-04:00Another PE finding, albeit a 1-in-5er is S1Q3T3. B...Another PE finding, albeit a 1-in-5er is S1Q3T3. But, I'm with you: PE is primarily a clinical diagnosis! If I've got ECG signs that also point in the direction of my "clinical gestalt" all the better.Christopherhttps://www.blogger.com/profile/11415988855392944633noreply@blogger.com