chapter page, 12-lead ecg for acute and critical care providers © 2006 by pearson education, inc....
If you can't read please download the document
DESCRIPTION
Page, 12-Lead ECG for Acute and Critical Care Providers © 2006 by Pearson Education, Inc. Upper Saddle River, NJ Left Bundle Branch Block Use Lead V1 (MCL-1) QRS >120 ms Circle the J point Draw the line Use your turn signal ST elevation due to late repolarization 117TRANSCRIPT
chapter Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ Left Bundle Branch Block and Acute MI 11 Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ Chapter 11 Objectives Describe the diagnostic problems with LBBB Describe the criteria for AMI in LBBB using QRS changes Use a simple table ECG calculator to determine the probability of an AMI in LBBB 116 Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ Left Bundle Branch Block Use Lead V1 (MCL-1) QRS >120 ms Circle the J point Draw the line Use your turn signal ST elevation due to late repolarization 117 Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ LBBB and AMI LBBB has higher mortality than RBBB Most often seen in anterior MI Higher mortality if not treated Mortality rate reduced if treated in less than 6 hours 118 Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ LBBB Hemodynamics QRS >170 ms has ejection fraction of EJ 1 mm and concordant with the QRS axis? 120 Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ AMI / LBBB Calculator ST segment depression 1 mm in Leads V1, V2, or V3? Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ AMI / LBBB Calculator ST elevation 5 mm discordant from the QRS axis? Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ Reliability of the Calculator Specificity Sensitivity Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ Practice Cases AMI and LBBB 121 Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ 121 Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ 122 Page, 12-Lead ECG for Acute and Critical Care Providers 2006 by Pearson Education, Inc. Upper Saddle River, NJ 123