ECG Guru - Instructor Resources - Long PR interval https://www.ecgguru.com/ecg/long-pr-interval en Non-Sustained Ventricular Tachycardia https://www.ecgguru.com/ecg/non-sustained-ventricular-tachycardia-0 <div class="field field-name-field-ecg field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/ecg/non-sustained-ventricular-tachycardia-0"><img typeof="foaf:Image" src="https://www.ecgguru.com/sites/default/files/MR119%20NonSust%20VT.jpg" width="1800" height="951" alt="" /></a></div><div class="field-item odd"><a href="/ecg/non-sustained-ventricular-tachycardia-0"><img typeof="foaf:Image" src="https://www.ecgguru.com/sites/default/files/MR119%20NonSust%20VT%20Marked%20Up_0.jpg" width="1800" height="951" alt="" /></a></div></div></div><div class="field field-name-field-ecg-interpretation field-type-text-long field-label-hidden"><div class="field-items"><div class="field-item even"><p>This ECG was obtained from a 45-year-old man who was experiencing palpitations and lightheadedness, which he originally attributed to anxiety. There are short, but frequent periods of ventricular tachycardia, which are self-limiting. &nbsp;This is called "NON-SUSTAINED VENTRICULAR TACHYCARDIA". &nbsp;The underlying rhythm is sinus, with a remarkably long PR interval, and at least one episode of failure of the P wave to conduct, making "second-degree AV block, Type II" a possibility. It is difficult to thoroughly evaluate the underlying rhythm because it is not seen very often in this ECG. The rate of the underlying P waves is about 67 bpm. &nbsp;The PR interval is .40 seconds (400 ms). &nbsp;The "normal" QRS complexes are slightly widened, at about .10 sec (100 ms), which is typical of Type II AVB. &nbsp;The ventricular QRS complexes are wide at .16 sec. (160 ms)</p><p>To assist you in using this tracing for teaching, we have also supplied a "marked up" version. &nbsp;The P waves, both visible and hidden, are marked with red lines. The PR intervals are shown in the Lead V1 rhythm strip in green. &nbsp;And the QRS complexes are numbered. &nbsp;QRS complexes numbered 2, 3, 6, and 12 are sinus. The P wave AFTER QRS #5 is non-conducted.</p><p>To review the differentiation of ventricular tachycardia from supraventricular tachycardia with aberrant conduction, go <a title="Dx WCT" href="http://ecgguru.com/expert-review/what-are-criteria-determining-wide-complex-tachycardia-v-tach">HERE</a>.</p></div></div></div><div class="field field-name-field-rate-this-content field-type-fivestar field-label-above"><div class="field-label">Rate this content:&nbsp;</div><div class="field-items"><div class="field-item even"><form class="fivestar-widget" action="/taxonomy/term/427/feed" method="post" id="fivestar-custom-widget" accept-charset="UTF-8"><div><div class="clearfix fivestar-average-text fivestar-average-stars fivestar-form-item fivestar-hearts"><div class="form-item form-type-fivestar form-item-vote"> <div class="form-item form-type-select form-item-vote"> <select id="edit-vote--2" name="vote" class="form-select"><option value="-">Select rating</option><option value="20">Give Non-Sustained Ventricular Tachycardia 1/5</option><option value="40">Give Non-Sustained Ventricular Tachycardia 2/5</option><option value="60">Give Non-Sustained Ventricular Tachycardia 3/5</option><option value="80" selected="selected">Give Non-Sustained Ventricular Tachycardia 4/5</option><option value="100">Give Non-Sustained Ventricular Tachycardia 5/5</option></select> <div class="description"><div class="fivestar-summary fivestar-summary-average-count"><span class="average-rating">Average: <span >3.7</span></span> <span class="total-votes">(<span >3</span> votes)</span></div></div> </div> </div> </div><input class="fivestar-submit form-submit" type="submit" id="edit-fivestar-submit" name="op" value="Rate" /><input type="hidden" name="form_build_id" value="form-YjfWPnygM60g5UyiuFXlLrwQp5ZkivSUfFAtgx4qTDM" /> <input type="hidden" name="form_id" value="fivestar_custom_widget" /> </div></form></div></div></div><div class="field field-name-field-taxonomy field-type-taxonomy-term-reference field-label-above"><div class="field-label">Related Terms:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/ecg/ventricular-tachycardia" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Ventricular tachycardia</a></div><div class="field-item odd"><a href="/ecg/non-sustained-ventricular-tachycardia" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Non-sustained ventricular tachycardia</a></div><div class="field-item even"><a href="/ecg/first-degree-av-block" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">First-degree AV block</a></div><div class="field-item odd"><a href="/ecg/long-pr-interval" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Long PR interval</a></div></div></div><ul class="links inline"><li class="addtoany first last"><span><span class="a2a_kit a2a_target addtoany_list" id="da2a_1"> <a class="a2a_dd addtoany_share_save" href="https://www.addtoany.com/share#url=https%3A%2F%2Fwww.ecgguru.com%2Fecg%2Fnon-sustained-ventricular-tachycardia-0&amp;title=%20Non-Sustained%20Ventricular%20Tachycardia"><img src="/sites/all/modules/addtoany/images/share_save_256_24.png" width="256" height="24" alt="Share"/></a> </span> <script type="text/javascript"> <!--//--><![CDATA[//><!-- if(window.da2a)da2a.script_load(); //--><!]]> </script></span></li> </ul> Sat, 04 Jun 2016 20:02:27 +0000 Dawn 700 at https://www.ecgguru.com https://www.ecgguru.com/ecg/non-sustained-ventricular-tachycardia-0#comments ECG Basics: Sinus Bradycardia With First-degree AV Block https://www.ecgguru.com/ecg/ecg-basics-sinus-bradycardia-first-degree-av-block-0 <div class="field field-name-field-ecg field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/ecg/ecg-basics-sinus-bradycardia-first-degree-av-block-0"><img typeof="foaf:Image" src="https://www.ecgguru.com/sites/default/files/126%20Sinus%20brady%20c%201st%20degree%20AVB.jpg" width="1800" height="260" alt="" /></a></div></div></div><div class="field field-name-field-ecg-interpretation field-type-text-long field-label-hidden"><div class="field-items"><div class="field-item even"><p>This is a nice teaching strip of a slowing sinus bradycardia that began around 40 bpm, and is slowing. &nbsp;It is a good example of how the sinus node slows down - there is no abrupt change of rates, rather a change with each R-to-R interval. &nbsp;There is also a first-degree AV block, reflecting slowing of conduction in the AV node. &nbsp;The PR interval is slightly variable at .28 sec. to about .32 sec. &nbsp;This is a good strip to begin talking about treatment of bradycardias with beginner students, as there is no second- or third-degee AVB, but the patient is very likely to be symptomatic now, or very soon. &nbsp;Atropine would probably improve this rate in a symptomatic patient, but if there is time, a 12-Lead would be a good idea to rule out acute M.I. &nbsp;Inadvertently raising the rate too much in the injured heart can lead to pump failure, while leaving the patient poorly-perfused in a bradycardia will starve the heart. &nbsp;A transthoracic or temporary IV pacemaker might be a better choice for some patients because of our ability to choose the rate.</p></div></div></div><div class="field field-name-field-rate-this-content field-type-fivestar field-label-above"><div class="field-label">Rate this content:&nbsp;</div><div class="field-items"><div class="field-item even"><form class="fivestar-widget" action="/taxonomy/term/427/feed" method="post" id="fivestar-custom-widget--2" accept-charset="UTF-8"><div><div class="clearfix fivestar-average-text fivestar-average-stars fivestar-form-item fivestar-hearts"><div class="form-item form-type-fivestar form-item-vote"> <div class="form-item form-type-select form-item-vote"> <select id="edit-vote--4" name="vote" class="form-select"><option value="-">Select rating</option><option value="20">Give ECG Basics: Sinus Bradycardia With First-degree AV Block 1/5</option><option value="40">Give ECG Basics: Sinus Bradycardia With First-degree AV Block 2/5</option><option value="60">Give ECG Basics: Sinus Bradycardia With First-degree AV Block 3/5</option><option value="80">Give ECG Basics: Sinus Bradycardia With First-degree AV Block 4/5</option><option value="100">Give ECG Basics: Sinus Bradycardia With First-degree AV Block 5/5</option></select> <div class="description"><div class="fivestar-summary fivestar-summary-average-count"><span class="empty">No votes yet</span></div></div> </div> </div> </div><input class="fivestar-submit form-submit" type="submit" id="edit-fivestar-submit--2" name="op" value="Rate" /><input type="hidden" name="form_build_id" value="form-hWNzIlKJWaam80oxNFWMiffaoDYgsT4jdQruB6uNX3E" /> <input type="hidden" name="form_id" value="fivestar_custom_widget" /> </div></form></div></div></div><div class="field field-name-field-taxonomy field-type-taxonomy-term-reference field-label-above"><div class="field-label">Related Terms:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/ecg/ecg-basics" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">ECG Basics</a></div><div class="field-item odd"><a href="/ecg/basic-ecg" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Basic ECG</a></div><div class="field-item even"><a href="/ecg/rhythm-strip" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Rhythm strip</a></div><div class="field-item odd"><a href="/ecg/first-degree-av-block" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">First-degree AV block</a></div><div class="field-item even"><a href="/ecg/sinus-bradycardia" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Sinus bradycardia</a></div><div class="field-item odd"><a href="/ecg/long-pr-interval" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Long PR interval</a></div></div></div><ul class="links inline"><li class="addtoany first last"><span><span class="a2a_kit a2a_target addtoany_list" id="da2a_2"> <a class="a2a_dd addtoany_share_save" href="https://www.addtoany.com/share#url=https%3A%2F%2Fwww.ecgguru.com%2Fecg%2Fecg-basics-sinus-bradycardia-first-degree-av-block-0&amp;title=ECG%20Basics%3A%20Sinus%20Bradycardia%20With%20First-degree%20AV%20Block"><img src="/sites/all/modules/addtoany/images/share_save_256_24.png" width="256" height="24" alt="Share"/></a> </span> </span></li> </ul> Fri, 10 Jan 2014 21:52:59 +0000 Dawn 540 at https://www.ecgguru.com https://www.ecgguru.com/ecg/ecg-basics-sinus-bradycardia-first-degree-av-block-0#comments