tag:blogger.com,1999:blog-1199060416202745408.post6844131806191546163..comments2024-03-19T13:40:12.355+08:00Comments on ECG of the Week: ECG of the Week - 18th March 2013Anonymoushttp://www.blogger.com/profile/09026589956407176781noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-1199060416202745408.post-49943155954611950442013-03-19T01:58:28.851+08:002013-03-19T01:58:28.851+08:00John,
That was what I was alluding to with my &qu...John,<br /><br />That was what I was alluding to with my "technical change" comment, as I believe the difference in the two ECG's to be attributable to electrode misplacement (LA-LL swap) rather than a primary change due to ACS.<br /><br />LA<->LL: I->II, II->I, III->-III, aVR, aVL->aVF, aVF->aVL.<br /><br />Thank you for the great cases!Christopherhttps://www.blogger.com/profile/11415988855392944633noreply@blogger.comtag:blogger.com,1999:blog-1199060416202745408.post-9239134623604953872013-03-17T01:21:00.324+08:002013-03-17T01:21:00.324+08:00Hi guys,
As always thank you for your comments, I...Hi guys,<br /><br />As always thank you for your comments, I hope you enjoy the blog.<br /><br />This is an interesting series of ECGs. Can I suggest looking specifically at leads aVL & aVF between the two ECGs and consider the net effect on leads I, II, III.<br /><br />Thanks,<br /><br />John LarkinAnonymoushttps://www.blogger.com/profile/09026589956407176781noreply@blogger.comtag:blogger.com,1999:blog-1199060416202745408.post-80770694538011995772013-03-16T23:28:10.447+08:002013-03-16T23:28:10.447+08:00Jason,
I've not seen a 180 degree change in t...Jason,<br /><br />I've not seen a 180 degree change in the axis before with Mason-Likar vs Limb Leads, usually no more than 15-30 degrees.<br /><br />Have you seen that before without a lead swap of sorts?Christopherhttps://www.blogger.com/profile/11415988855392944633noreply@blogger.comtag:blogger.com,1999:blog-1199060416202745408.post-34357465065777479832013-03-16T11:09:37.988+08:002013-03-16T11:09:37.988+08:00I'd be willing to bet that the first (top) ECG...I'd be willing to bet that the first (top) ECG was performed with all of the electrodes on the torso in a Modified Mason-Likar placement. The bottom ECG was probably performed with standard placement (i.e., arm and leg electrodes actually on the extremities). Jason E. Roediger, CCThttps://www.blogger.com/profile/12375233408457825429noreply@blogger.comtag:blogger.com,1999:blog-1199060416202745408.post-39860729456442611882013-03-15T11:15:32.278+08:002013-03-15T11:15:32.278+08:00Challenge your assumptions.
Axis changes too much...Challenge your assumptions.<br /><br />Axis changes too much between the two for me not to consider a technical cause of the change.<br /><br />Once ruled out, you can consider an evolving lateral wall MI as the cause of the ST/T-wave changes in the inferior leads.Christopherhttps://www.blogger.com/profile/11415988855392944633noreply@blogger.com