ECG Guru - Instructor Resources - Rate-dependent LBBB https://www.ecgguru.com/ecg/rate-dependent-lbbb en Jason's Blog: ECG Challenge of the Week for March 3rd - 10th. https://www.ecgguru.com/blog/jasons-blog-ecg-challenge-week-march-3rd-10th <div class="field field-name-field-blog-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/blog/jasons-blog-ecg-challenge-week-march-3rd-10th"><img typeof="foaf:Image" src="https://www.ecgguru.com/sites/default/files/ECG%20of%20the%20Week%202h%20ladder.png" width="765" height="502" alt="" /></a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p><span style="text-decoration: underline;"><strong>Patient's clinical data:</strong></span> <br>73-year-old white man. <br><br><br></p> <p>&nbsp;</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/170/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 Jason&amp;#039;s Blog: ECG Challenge of the Week for March 3rd - 10th. 1/5</option><option value="40">Give Jason&amp;#039;s Blog: ECG Challenge of the Week for March 3rd - 10th. 2/5</option><option value="60">Give Jason&amp;#039;s Blog: ECG Challenge of the Week for March 3rd - 10th. 3/5</option><option value="80" selected="selected">Give Jason&amp;#039;s Blog: ECG Challenge of the Week for March 3rd - 10th. 4/5</option><option value="100">Give Jason&amp;#039;s Blog: ECG Challenge of the Week for March 3rd - 10th. 5/5</option></select> <div class="description"><div class="fivestar-summary fivestar-summary-average-count"><span class="average-rating">Average: <span >3.8</span></span> <span class="total-votes">(<span >9</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-0H1hcmaioSDrwswLmAo_3SS7XOEMa5-lR3jVS02Lx7U" /> <input type="hidden" name="form_id" value="fivestar_custom_widget" /> </div></form></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%2Fblog%2Fjasons-blog-ecg-challenge-week-march-3rd-10th&amp;title=Jason%27s%20Blog%3A%20ECG%20Challenge%20of%20the%20Week%20for%20March%203rd%20-%2010th."><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, 02 Mar 2013 15:51:33 +0000 jer5150 409 at https://www.ecgguru.com https://www.ecgguru.com/blog/jasons-blog-ecg-challenge-week-march-3rd-10th#comments SVT with Rate-dependent LBBB; Rhythm Strip https://www.ecgguru.com/ecg/svt-rate-dependent-lbbb-rhythm-strip <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/svt-rate-dependent-lbbb-rhythm-strip"><img typeof="foaf:Image" src="https://www.ecgguru.com/sites/default/files/SVTLB100.jpg" width="1400" height="1104" 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 series of rhythm strips demonstrates a supraventricular tachycardia with a wide QRS. The SVT stops abruptly after a 6 mg dose of adenosine is given IVP. This confirms the diagnosis of SVT vs sinus tachycardia. When the tachycardia stops, a sinus rhythm resumes, and the QRS is now narrow. This confirms that the bundle branch block was rate-dependent. This is caused by differing refractory periods in the fasicles - the right bundle branch was able to recover its function quickly during the tachycardia, but the left bundle was not able to keep up at that rate.<br><br></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/170/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 SVT with Rate-dependent LBBB; Rhythm Strip 1/5</option><option value="40">Give SVT with Rate-dependent LBBB; Rhythm Strip 2/5</option><option value="60">Give SVT with Rate-dependent LBBB; Rhythm Strip 3/5</option><option value="80">Give SVT with Rate-dependent LBBB; Rhythm Strip 4/5</option><option value="100">Give SVT with Rate-dependent LBBB; Rhythm Strip 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-WyfYHlvoltG0RxTGVGJSl1W_siBr8LgSzBy1MFWe3HE" /> <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/rate-dependent-lbbb" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Rate-dependent LBBB</a></div><div class="field-item odd"><a href="/ecg/aberrant-conduction" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Aberrant conduction</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%2Fsvt-rate-dependent-lbbb-rhythm-strip&amp;title=SVT%20with%20Rate-dependent%20LBBB%3B%20Rhythm%20Strip%20"><img src="/sites/all/modules/addtoany/images/share_save_256_24.png" width="256" height="24" alt="Share"/></a> </span> </span></li> </ul> Wed, 30 Nov 2011 20:00:40 +0000 Dawn 114 at https://www.ecgguru.com https://www.ecgguru.com/ecg/svt-rate-dependent-lbbb-rhythm-strip#comments